sl3725 - tuff equipmenttuffequipco.com/pdfs/gehl owners manuals/gehl skid loaders/sl3725...sl3725...

OPERATOR’S MANUAL

Form No.907777

Revision C08/99

SL3725

SL3825

SL4625

Skid LoadersSL3725 Gasoline SN7351 & Later

SL3825 Diesel SN10701 & Later SL4625 Diesel SN12907 & Later

®

INTERNATIONAL SYMBOLS

Engine Start Engine Stop Power On Power Off Work Light Hazard Flasher

Horn Volume - FullVolume - Half

Full Volume - Empty Battery Charge Fuse

Read Operator’sManual

EngineHourmeter Diesel Fuel

HydraulicSystem Parking Brake Neutral

Engine Air Filter Glow Plug Engine OilEngine OilPressure Engine Oil Level

Engine OilTemperature

Engine CoolantHydraulic OilTemperature Control Handles

ClockwiseRotation

CounterclockwiseRotation

GreaseLubrication Point

Machine Travel -Forward

Machine Travel -Reverse

Seatbelt - LapOnly Tie-Down Fast Slow

Bucket - Dump Bucket - Rollback Bucket - Lower Bucket - Raise Bucket - Float Safety Alert

N

TABLE OF CONTENTS

Chapter Description Page

International Symbols . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Inside Front Cover

1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2 Model Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4

3 Checklists . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

4 Safety . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

5 Controls & Safety Equipment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

6 Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

7 Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 42

8 Lubrication . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

9 Attachments & Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 50

10 Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 54

11 Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

12 Decal Locations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

13 Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Torque Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104

Warranty . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Inside Back Cover

PRINTED IN USA 1 907777/CP0899

IDENTIFICATION INFORMATION

Write your Gehl loader model and serial numbers in the spaces provided below. Refer to

these numbers when inquiring about parts or service from your Gehl dealer.

The model and serial numbers for this loader are on a decal located inside the right

chassis riser, in front of the lift arm pivot.

All-Tach, Quick-Tach and Hydraloc are trademarks of Gehl Company.

Gehl and Powerview are registered trademarks of Gehl Company.

CHAPTER 1INTRODUCTION

This Operator’s Manual gives the owner/operator information about maintaining and servicing SL3725, SL3825,

SL3825SX, SL4625, SL4625SX and SL4625DX skid loader models. More importantly, this manual provides an

operating plan for safe and proper use of the machine. Major points of safe operation are detailed in the SAFETY

chapter of this manual.

The GEHL® Company asks that you read and understand the contents of this manual COMPLETELY and become

familiar with your new machine, BEFORE attempting to operate it. Consult your Gehl dealer to obtain extra manuals

or manuals in other languages. A SAFETY VIDEO IS ALSO AVAILABLE through your GEHL dealer.

Throughout this manual, information is provided which is set in italic type and introduced by the word NOTE or

IMPORTANT. Be sure to read carefully and comply with the message. Following this information will improve your

operating or maintenance efficiency, help you to avoid breakdowns or damage, and extend your machine’s life.

A manual box in the ROPS/FOPS stores the Operator’s Manual. After using the manual, please return it to the box and

keep it with the unit at all times! If this machine is resold, GEHL Company recommends that this manual be given to

the new owner.

The attachments and equipment available for use with this machine are intended for general earth moving purposes,

boring, ditch digging, etc. Read the manual provided with the attachment to learn how to safely maintain and operate

the machine. Make sure the machine is suitably equipped for the type of work to be performed.

Do not use this machine for any application or purpose other than those described in this manual. If the machine is to

be used with special attachments or equipment other than those approved by GEHL, consult your GEHL dealer. Any

person making unauthorized modifications is responsible for the consequences.

“Right” and “left” are determined from a position sitting on the seat and facing forward.

The use of skid steer loaders is subject to certain hazards that cannot be eliminated by mechanical means, but only by

exercising intelligence, care and common sense. Such hazards include, but are not limited to, hillside operation,

overloading, instability of the load, poor maintenance and using the equipment for a purpose for which it is not

intended or designed.

It is essential to have competent and careful operators, who are not physically or mentally impaired, and who are

thoroughly trained in the safe operation of the equipment and the handling of loads. It is recommended that the

operator be capable of obtaining a valid motor vehicle operator’s license.

Our dealership network stands by to provide you with any assistance you may require, including genuine GEHL

service parts. All parts should be obtained from or ordered through your GEHL dealer. Give complete information

about the part and include the model and serial numbers of your machine. Record the serial number in the space

provided on the previous page, as a handy record for quick reference.

GEHL Company reserves the right to make changes or improvements in the design or construction of any part without

incurring the obligation to install such changes on any unit previously delivered.

The GEHL Company, in cooperation with the AmericanSociety of Agricultural Engineers and the Society of

Automotive Engineers, has adopted this�

Safety Alert Symbolto pinpoint characteristics which, if NOT properly followed,

can create a safety hazard. When you see this symbol in thismanual or on the machine itself, you are reminded to BE

ALERT! Your personal safety is involved!

907777/CP0899 2 PRINTED IN USA

Loader Identification


FRONT WORKLIGHTS

ROPS/FOPS

HANDLES

CONTROLHANDLES

TILTCYLINDERS

BUCKET

TIRES

RISER

LIFT CYLINDERLOCK

LIFT CYLINDER

AUXILIARYQUICK

COUPLERS

SEAT BELT

RESTRAINTBAR

LIFT ARM

REAR WORKLIGHT

ENGINE COVER

REAR GRILLE

CHAPTER 2MODEL SPECIFICATIONS

SL3725 & SL3825

All Dimension are in Inches (Millimeters) Unless Otherwise Noted

Gehl Skid Loader Models SL37251

SL37252

SL3825 & SL3825SX

Engine:

Make . . . . . . . . . . . . . . . . . . . . . . . . . . Ford. . . . . . . . . . . . . . . . . . . . . . Ford . . . . . . . . . . . . . . . . . . . . . Kubota

Model . . . . . . . . . . . . . . . . . . . . . . . VSG413I . . . . . . . . . . . . . . . . . . VSG411I . . . . . . . . . . . . . . . . . . . V1305E

Fuel . . . . . . . . . . . . . . . . . . . . . . . . . Gasoline . . . . . . . . . . . . . . . . . . Gasoline . . . . . . . . . . . . . . . . . . . . Diesel

Displacement. . . . . . . . . . . . . . . . 79 CID (1.3 L). . . . . . . . . . . . . . 67 CID (1.1 L) . . . . . . . . . . . . . . 81 CID (1.3 L)

Horsepower - Net (SAE) . 42 hp (31.3 kW) @3000 rpm . . . 35 hp (26 kW) @3000 rpm . . . 29.3 hp (22 kW) @2800 rpm

Torque - Max . . . . . . . . . 73 ft-lbs (98 N·m) @ 3000 rpm . 60 ft-lbs (81 N·m) @ 2500 rpm . 65 ft-lbs (88 N·m) @ 2000 rpm

SAE Rated Operating Capacity3: . 950 lbs (432 kg). . . . . . . . . . . . . 950 lbs (432 kg) . . . . . . . . . . . . 1000 lbs (455 kg)

Operating Weight: . . . . . . . . . . . . 3920 lbs (1783 kg). . . . . . . . . . . 3920 lbs (1783 kg) . . . . . . . . . . . 4020 lbs (1823 kg)

Shipping Weight: . . . . . . . . . . . . . 3120 lbs (1415 kg) . . . . . . . . . . 3120 lbs (1415 kg) . . . . . . . SL3825 3370 lbs (1529 kg)

SL3825SX 3440 lbs (1563 kg)

Specifications Below Apply To All SL3725 & SL3825 Models

Capacities:

Fuel Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8.5 US gal (32 L)

Hydraulic Reservoir . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8 US gal ( 30 L) - with 10 Micron Filtration

Chaincases. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 US qts (3,8 L) each

Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Refer to the Lubrication chapter of this manual

Electrical:

Battery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 Volt DC with 470 CCA

Delivery Rates:

Hydraulic System Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 gpm (38 L/min)

Travel Speed: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 8 mph (0 to 13 km/h)

Sound Pressure Level (Operator Ear): . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87 dB(A)

Sound Power Level (Environmental): . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 101 dB(A)

1 SN7820 and later2 Before SN78203 Rated operating capacity with 54" (1372 mm) wide utility bucket, 27 x 8.50 - 5" tires and 175 lb (79 kg) operator in accordance with SAE J818.4 Refer to the “Material Densities” topic in Chapter 6 for the average weight/volume of various materials.


Solid Rubber Tire Set - 7 x 12

Flotation Tire Set - 27 x 8.5 - 15, 4-ply

Flotation Tire Set - 22.7 x 10.5 - 15, 4-ply

Heavy Duty Tire Set - 27 x 8.5 - 15, 6-ply

Heaped CapacityWidth Bucket Description cu ft cu m

50 (1270) Utility 9.7 0.27

54 (1372) Dirt/Construction 8.0 0.23

54 (1372) Utility 10.5 0.30

54 (1372) Fertilizer 13.0 0.37

60 (1524) Utility 11.7 0.33

60 (1524) Light Material 14.9 0.42

60 (1524) Produce Snow 16.5 0.47

Tire Options Buckets & Capacities4

SL4625

All Dimension are in Inches (Millimeters) Unless Otherwise Noted

Gehl Skid Loader Models SL4625/SX/DX

Engine:

Make . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Kubota

Model . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V2203E

Fuel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Diesel

Displacement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 134 CID (2.2L)

Horsepower - Net (SAE) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43 hp (32 kW) @2600 rpm

Torque - Max. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 108 ft-lbs (146 N·m) @ 1600 rpm

SAE Rated Operating Load1: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1350 lbs (614 kg)

Operating Weight:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5510 lbs (2499 kg)

Shipping Weight: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SL4625 4715 lbs (2139 kg)

SL4625SX 4780 lbs (2168 kg)

SL4625DX 4860 lbs (2209 kg)

Capacities:

Fuel Tank . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11.2 US gal (42,3 L)

Hydraulic Reservoir . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10 US gal ( 37,8 L) - with 4 Micron Filtration

Chaincases. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 US qts (5,7 L) each

Engine Oil . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Refer to the Lubrication chapter of this manual

Hydraulic System:

Standard Flow Rate (Single) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17 gpm (68 L/min)

High Flow (Dual) (SL4625DX) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29 gpm (101 L/min)

Travel Speed:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0 to 6.5 mph (0 to 10,2 km/h)

Sound Pressure Level (Operator Ear): . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 85 dB(A)

Sound Power Level (Environmental) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 104 dB(A)

1 Rated operating capacity with 65” (1651 mm) wide dirt/construction bucket, 10.00 x 16.5” tires and 175 lb (79 kg) operator in accordance withSAE J818.2 Refer to the “Material Densities” topic in Chapter 6 for the average weight/volume of various materials.


Solid Rubber Tire Set - 6.5 x 16

Chevron Tire Set - 7 x 16, 6-ply

Flotation Tire Set - 10 x 16.5, 6-ply

Flotation Tire Set (Narrow) - 10 x 16.5, 6-ply

Flotation Tire Set - 12 x 16.5, 6-ply

Extra Wide Lug Tire Set - 29 x 12.5 x 15, 6-ply

Heavy Duty Tire Set - 10 x 16.5, 8-ply

Heavy Duty Tire Set - 12 x 16.5, 10-ply

Heaped CapacityWidth Bucket Description cu ft cu m


60 (1524) Utility 12.0 0.34

60 (1524) Industrial 12.0 0.34


65 (1651) Dirt/Construction w/teeth 10.8 0.30

65 (1651) Light material 14.7 0.42

65 (1651) Utility 19.0 0.54


Tire Options Buckets & Capacities2

� Standard Features �

1 Standard on SL3825SX; optional on SL3725 & SL38252 Standard on SL4625SX/DX; all others, optional3 Standard on SL37254 Standard on SL3825SX, SL4625SX/DX5 Standard on SL3825SX, SL4625SX/DX T-Bar Controls


� Spark Arrestor Muffler

� Tandem-mounted, Direct Drive

Hydrostatic Pump

� ROPS-FOPS ISO Level II

Approved

� Gas Spring Assist Rollback

ROPS with Lock

� Side-mounted, Self-centering

Drive and Lift/Tilt

� Control T-bars or Hand/Foot

Controls

� Spring-Applied Automatic

Parking Brake

� Foot Throttle

(T-Bar Controls Only)

� SAE J386 Construction-approved

Seat Belt

� Operator Restraint Bar

with Armrests

� Hydraloc™ System- Brakes and

Interlock for Starter, Lift

Cylinders, Tilt Cylinders and

Wheel Drive

� Lift Arm Support Device

� Eye-level Instrument and Control

Panel

� Hinged Rear Grille & Engine

Access Cover

� Bellyplate with Cleanout

(Access) Cover

� Tip-back Radiator (for Cleaning

and Inspection)

� Quick-Tach™ Single Lever

Attachment Locking

� Independent Hydraulic Reservoir

with Integral Sight Gauge and

Strainer

� Hand Operated Choke3

� Glow Plug/Starting Assist (Diesel)

� Air Cleaner Condition Indicator4

� Floor Mat1

� Foot Controlled Auxiliary

Hydraulics5

� Dual-element Air Cleaner1,2

� Attachment Self-leveling Lift

Action1,2

� Front Auxiliary Hydraulics

Connections1,2

� Operating Lights1,2

� Sound-deadening Package1,2

� Rear Window1,2

� Hydraulic Oil Temperature

Indicator4

� Hydraulic Oil Filter Condition

Indicator4

� Engine Coolant Temperature

Indicator and Gauge4

General Specifications

SL3725/SL3825* SL4625*

inch (mm) inch (mm)

A Overall Operation Height -Fully Raised 134.4 (3414) 144.4 (3660)B Height to Hinge Pin- Fully Raised 107.5 (2731) 114.8 (2916)C Overall Height- Top of ROPS 69.6 (1767) 76.5 (1943)D Ground Clearance-to Chassis (Between Wheels) 9.0 (229) 7.6 (193)E Overall Length (w/54" Dirt/Construction Bucket Down) 105.8 (2687)

Overall Length (w/65" Dirt/Construction Bucket Down) 118.2 (3002)F Overall Length (less Bucket) 82.4 (2093) 92.0 (2337)G Wheel Base 34.0 (864) 37.3 (947)H Dump Reach-w/54" Dirt/Construction Bucket (full height) 19.7 (500)

Dump Reach-w/54" Fertilizer Bucket (full height) 24.7 (627)Dump Reach-w/65" Dirt/Construction Bucket (full height) 23.0 (584)Dump Reach-w/65" Dirt/Construction Bucket (110" height) 24.4 (620)Dump Reach -w/65" Utility Bucket (full height) 29.1 (739)

I Rollback at Ground 32° 32°J Dump Angle (at Full Height) 37° 38°

Dump Angle (at 110" Height) 42°K Overall Width-less Bucket (w/5.70 x 15 Tires) 48.5 (1232)

Overall Width-less Bucket (w/27 x 8.5 x 15 Tires) 53.8 (1367)Overall Width-less Bucket (w/27 x 10.50 x 15 Tires) 57.1 (1450)Overall Width-less Bucket (w/7.00 x 15 Tires) 57.5 (1460)Overall Width-less Bucket (w/10.00 x 16.5 Tires) 62.0 (1575)Overall Width-less Bucket (w/12.00 x 16.5 Tires) 64.0 (1626)

L Bucket Width (54" Dirt-Construction Bucket)-Overall 54.8 (1392)Bucket Width (65" Dirt/Construction Bucket)-Overall 65.9 (1674)

M Clearance Circle - Rear 50.0 (1270) 55.4 (1407)N Clearance Circle - Front (less Bucket) 39.4 (1001) 44.5 (1130)O Clearance Circle - Front (w/54" Dirt/Construction Bucket) 63.6 (1615)

Clearance Circle - Front (w/65" Dirt/Construction Bucket) 72 (1839)P Seat to Ground Height 30.8 (782) 35.7 (907)Q Rollback at Full Height 105° 102°R Dump Height 86.3 (2192) 90.9 (2309)S Departure Angle 28° 25°

Reach Maximum 34.6 (879)Dump Height at Maximum Reach 32.6 (828) 34.5 (876)Height to Top of Riser 62.4 (1585) 67.5 (1715)Maximum Back Grading Angle 104° 102°

*Dimensions rated with a Gehl Quick-Tach Attachment.


NOTES


CHAPTER 3CHECKLISTS

PRE-DELIVERY

The following checklist is an important reminder of

valuable information and inspections which MUST be

made before delivering the loader to the customer.

Check off each item after prescribed action is taken.

� Check that:

� Unit has NOT been damaged in shipment. Check forsuch things as dents and loose or missing parts; correct orreplace components as required.

� Battery is securely mounted and NOT cracked and cableconnections are tight.

� Lift and tilt cylinders, hoses and fittings are NOTdamaged, leaking or loosely connected.

� Radiator hoses and fittings are NOT damaged, leaking orloosely connected.

� Filters are NOT damaged, leaking or loosely secured.

� Wheels are properly and securely attached and tires areproperly inflated.

� Loader is properly lubricated and NO grease fittings aremissing or damaged.

� Hydraulic system reservoir, engine crankcase and drivechaincases are filled to their proper levels.

� All adjustment are made to comply with settings given inthe Adjustments chapter of this manual.

� All guards, shields and decals are in place and securelyattached.

� Model and serial numbers, for this unit, are recorded inspace provided on this page and page 1.

Start loader engine and test-run the unitwhile checking that proper operation is

exhibited by all controls.

� Check that:

� Drive control and lift/tilt control handles or hand/footcontrols operate properly and are not damaged orbinding.

� Drive control handles or hand/foot controls are properlyadjusted for a correct “neutral” position.

� Lift cylinder and starter interlock system functionsproperly. By design, the engine will NOT start unless theoperator is sitting on the seat and the restraint bar is“lowered”. Furthermore, the lift and tilt circuits, andpropel will not operate unless the operator is sitting onthe seat, the restraint bar is “lowered”, and the starter keyswitch is in the “Run” position.

I acknowledge that pre-delivery procedures were

performed on this unit as outlined above.

Dealership Name

Dealer Representative’s Name

Date Checklist Filled-out

Loader Model# Loader Serial# Engine Serial#

DELIVERY


valuable information that MUST be passed on to the

customer at the time the unit is delivered. Check off

each item as you explain it to the customer.

� Check that:

� The Index at the back, for quickly locating topics;

� The Safety, Controls & Safety Equipment and Operationchapters, for information regarding safe use of themachine;

� The Adjustments , Lubricat ion, Service andTroubleshooting chapters, for information regardingproper maintenance of the machine. Explain that regularlubrication and maintenance are required for continuedsafe operation and long life.

� Give this Operator’s Manual to the customer and instructthe customer to be sure to read and completelyunderstand its contents BEFORE operating the unit.

� Explain that the customer MUST consult the enginemanual (provided) for related specifications, operatingadjustments and maintenance instructions.

� Completely fill out the owner’s registration, includingcustomer’s signature and, return it to the company.

Customer’s Signature

Date Delivered

(Dealer’s File Copy)


Re

mo

ve

De

ale

r’s

Fil

eC

op

ya

tP

erf

ora

tio

n

INTENTIONALLY BLANK

(To be removed as dealer’s file copy)


CHAPTER 3CHECKLISTS

PRE-DELIVERY


valuable information and inspections which MUST be

made before delivering the loader to the customer.

Check off each item after prescribed action is taken.

� Check that:

� Unit has NOT been damaged in shipment. Check forsuch things as dents and loose or missing parts; correct orreplace components as required.

� Battery is securely mounted and NOT cracked and cableconnections are tight.

� Lift and tilt cylinders, hoses and fittings are NOTdamaged, leaking or loosely connected.

� Radiator hoses and fittings are NOT damaged, leaking orloosely connected.

� Filters are NOT damaged, leaking or loosely secured.

� Wheels are properly and securely attached and tires areproperly inflated.

� Loader is properly lubricated and NO grease fittings aremissing or damaged.

� Hydraulic system reservoir, engine crankcase and drivechaincases are filled to their proper levels.

� All adjustment are made to comply with settings given inthe Adjustments chapter of this manual.

� All guards, shields and decals are in place and securelyattached.

� Model and serial numbers, for this unit, are recorded inspace provided on this page and page 1.

Start loader engine and test-run the unitwhile checking that proper operation is

exhibited by all controls.

� Check that:

� Drive control and lift/tilt control handles or hand/footcontrols operate properly and are not damaged orbinding.

� Drive control handles or hand/foot controls are properlyadjusted for a correct “neutral” position.

� Lift cylinder and starter interlock system functionsproperly. By design, the engine will NOT start unless theoperator is sitting on the seat and the restraint bar is“lowered”. Furthermore, the lift and tilt circuits, andpropel will not operate unless the operator is sitting onthe seat, the restraint bar is “lowered”, and the starter keyswitch is in the “Run” position.

I acknowledge that pre-delivery procedures were

performed on this unit as outlined above.

Dealership Name

Dealer Representative’s Name

Date Checklist Filled-out

Loader Model# Loader Serial# Engine Serial#

DELIVERY


valuable information that MUST be passed on to the

customer at the time the unit is delivered. Check off

each item as you explain it to the customer.

� Check that:

� The Index at the back, for quickly locating topics;

� The Safety, Controls & Safety Equipment and Operationchapters, for information regarding safe use of themachine;

� The Adjustments , Lubricat ion, Service andTroubleshooting chapters, for information regardingproper maintenance of the machine. Explain that regularlubrication and maintenance are required for continuedsafe operation and long life.

� Give this Operator’s Manual to the customer and instructthe customer to be sure to read and completelyunderstand its contents BEFORE operating the unit.

� Explain that the customer MUST consult the enginemanual (provided) for related specifications, operatingadjustments and maintenance instructions.

� Completely fill out the owner’s registration, includingcustomer’s signature and, return it to the company.

Customer’s Signature

Date Delivered

(Pages 9 & 10 removed at perforation)


CHAPTER 4

The above Safety Alert Symbol means ATTENTION!

B E C O M E A L E R T ! Y O U R S A F E T Y I S

INVOLVED! It stresses an attitude of “Heads Up for

Safety” and can be found throughout this Operator’s

Manual and on the machine itself.

Before you operate this equipment, readand study the following safety information.In addition, make sure that every individualwho operates or works with thisequipment, whether family member oremployee, is familiar with these safetyprecautions.

The Gehl Company ALWAYS considers the operator’s

safety when designing its machinery, and guards

exposed moving parts for the operator’s protection.

However, some areas cannot be guarded or shielded in

order to assure proper operation. Furthermore, this

Operator’s Manual and the decals on the machine warn

of additional hazards and should be read and observed

closely.

DANGER“ D A N G E R ” i n d i c a t e s a n i m m i n e n t l yhazardous situation which, if not avoided, willresult in death or serious injury.

WARNING“WARNING” indicates a potentially hazardoussituation which, if not avoided, could result indeath or serious injury.

CAUTION“CAUTION” indicates a potentially hazardoussituation which, if not avoided, may result inminor or moderate injury. May also alertagainst unsafe practices.

Mandatory Safety Shutdown Procedure

BEFORE cleaning, adjusting, lubricating, servicing

the unit or leaving it unattended:

1. Move the drive control handle(s) to the “neutral”position.

2. Lower the lift arm and attachment completely.Also, see Step 4 below.

3. Move the throttle to the low idle position, shut offthe engine and remove the key.

4. If the lift arm MUST be left in the “raised” position,BE SURE to properly engage the lift arm supportdevice instead of performing Step 2.

ONLY after these precautions can you be sure it is

safe to proceed. Failure to fol low the above

procedure could lead to death or serious injury.


SAFETY

Additional Safety Reminders

� Some photographs in this manual may show doors,guards and shields open or removed for illustrativepurposes ONLY. BE SURE that all doors, guardsand shields are in their proper operating positionsBEFORE starting the engine to operate the unit.

� To ensure safe operation, replace damaged orworn-out parts with genuine Gehl service parts,BEFORE operating this equipment.

� Gehl skid loaders are designed and intended to beused ONLY with Gehl Company attachments orapproved referral attachments. The Gehl Companycannot be responsible for operator safety if theloader is used with a non-approved attachment.

� The terrain, engine speed, load being carried, andabrupt control movements can affect machinestability. IF MlSUSED, ANY OF THE ABOVEFACTORS CAN CAUSE THE LOADER TOTIP, THROWING YOU FORWARD OR OUTOF THE UNIT, CAUSING DEATH ORSERIOUS INJURY. Therefore, ALWAYS havethe operator restraint bar lowered and wear the seatbelt. Operate the controls smoothly and gradually atan appropriate engine speed that matches theoperating conditions.

� For additional stability when operating on inclinesor ramps, ALWAYS travel with the heavier end ofthe loader toward the top of the incline.

� DO NOT raise or drop a loaded bucket or forksuddenly. Abrupt movements under load can causeserious instability.

� NEVER push the lift/tilt T-Bar control into the“float” position with the bucket or attachmentloaded or raised, because this will cause the lift armto lower rapidly.

� NEVER use your hands to search for hydraulicfluid leaks. Instead, use a piece of paper orcardboard. Escaping fluid under pressure can beinvisible and can penetrate the skin and cause aserious injury. If any fluid is injected into your skin,see a doctor at once. Injected fluid MUST besurgically removed by a doctor or gangrene mayresult.

� ALWAYS wear safety glasses with side shieldswhen striking metal against metal. In addition, it isrecommended that a softer (non-chippable)material be used to cushion the blow. Failure toheed could lead to serious injury to the eyes or otherparts of the body.

� NEVER attempt to by-pass the keyswitch to startthe engine. Use only the jump-starting proceduredetailed in the Service chapter of this manual.

� DO NOT drive too close to an excavation or ditch;BE SURE that the surrounding ground has adequatestrength to support the weight of the loader and theload.

� DO NOT smoke or have any spark producingequipment in the area while filling the fuel tank orwhile working on the fuel or hydraulic systems.

� NEVER carry riders. Do not allow others to ride onthe machine or attachments, because they could fallor cause an accident.

� ALWAYS look to the rear before backing up theskid loader.

� Operate the controls only from the operator’s seat.

� ALWAYS face the loader and use the hand holdsand steps when getting on or off the loader. DONOT jump off the loader.

� Be sure all persons are away from machine and givea warning before starting engine.

� DO NOT exceed the rated operating load of themachine.

� Exhaust fumes can kill. Do not operate this machinein an enclosed area unless there is adequateventilation.

� NEVER use ether or starting fluid in an engine withglow plugs.

� When you park the machine and before you leavethe seat, check the restraint bar for proper operation.The restraint bar, when raised, applies the parkingbrake and deactivates the lift/tilt controls.


SAFETY


SAFETY

129258

093479

093475

L65928

122718


SAFETY

091050

072798

114316

091033

093484


SAFETY

093474093202

122745


SAFETY

093367

091035


SAFETY

093486

093477


SAFETY

129132

129130


NOTES

CHAPTER 5CONTROLS & SAFETY EQUIPMENT

CAUTIONBecome familiar with and know how to use ALLsafety devices and controls on the skid loaderBEFORE operating it. Know how to stop loaderoperation BEFORE starting it. This Gehl skidloader is designed and intended to be usedONLY with a Gehl Company attachment or aGehl Company approved accessory or referralattachment. The Gehl Company cannot beresponsible for operator safety if the loader isused with a non-approved attachment.

Guards & Shields

Whenever possible and without affecting loader

operation, guards and shields are used to protect

potentially hazardous areas. In many places, decals are

also provided to warn of potential dangers and/or to

display special operating procedures.

WARNINGRead and thoroughly understand ALL safetydecals on the loader BEFORE operating it. DoNOT opera te the loader un less ALLfactory-installed guards and shields areproperly secured in place.

Controls

If you have an SL3725 or SL3825 model, your loader

is “T-Bar” controlled.

If you have an SL4625 model, your loader could be

equipped with either “Hand & Foot” or “T-Bar”

controls.

Follow the instructions appropriate for your loader

type.

Throttle Lever & Accelerator Pedal

(Fig. 1)

A right-hand controlled throttle lever is provided on all

models for adjusting the engine RPM.

SL4625 T-Barcontrolled and SL3825SX models only:

A right-foot operated accelerator pedal controls the

engine RPM to match increased power requirements.

The pedal linkage is spring-loaded to return to the

adjusted hand-operated throttle settings.


Fig. 5-1: Throttle Lever & Accelerator Pedal

1. Accelerator Pedal2. Throttle Lever

1

2

T-BAR CONTROLLED LOADERS (Fig. 5-2)T-Bars on the skid loader control the hydraulic and hydrostatic functions. The left T-Bar controls the drive

(hydrostatics) and the right T-Bar controls the lift/tilt (hydraulics).

Drive Control T-Bar

The left T-Bar is the drive control which is linked to the

hydrostatic drives.

Forward Travel: Push the left T-Bar straight forward

(without twisting).

Reverse Travel: Pull the left T-Bar straight backwards

(without twisting).

Turning during Travel: Twist the left T-Bar clockwise

(to turn right) or counterclockwise (to turn left) and

move it slightly forward or rearward to cause a slow

gradual turn. The farther the T-Bar is moved in any

direction, the faster the turn will be made. Engine RPM

has a directly proportional affect on movement.

Fast Turning (Pivoting): Twist the left T-Bar

clockwise to cause a spin turn to the right; twist the

T-Bar counterclockwise to cause a spin turn to the left.

On a spin-turn, the wheels opposite the direction of the

turn will rotate forward and the wheels on the same side

as the direction of the turn will rotate rearward.

Auxiliary Hydraulics: Depress the foot pedal to

control the direction of flow. A stop locks the foot pedal

in the “on” (detent) position for continuous use.

WARNINGBE SURE the T-Bars are in “neutral” BEFOREstarting the engine. Operate the T-Barsgradually and smoothly. Excessive speed andquick T-Bar movements without regard forconditions and circumstances is hazardousand could cause an accident.

Lift/Tilt Control T-Bar

The right T-Bar controls the lif t (arm) and ti l t

(attachment) through linkage to the main hydraulic

control valve.

Attachment Travel: Twist the right T-Bar clockwise to

tilt the attachment downward; twist it counterclockwise

to tilt the attachment up or back.

Lift Arm Travel: To raise the lift arm: Pull the right

T-Bar straight back (without twisting).

To lower the lift arm: Push the right T-Bar straight

forward (without twisting).

The system control valve lift spool has a detent circuit

allowing the lowered lift arm to “float” while traveling

over changing ground conditions. To place the lift arm

in the detent (float) position: Push the right T-Bar all the

way forward, past the detent.

WARNINGNEVER push the lift/tilt T-Bar into the “float”position with the bucket or attachment loadedor raised, because this will cause the lift arm tolower rapidly.

NOTE: The speed of lift/tilt motion is directly

proportional to the amount of T-Bar movement and

engine RPM.


Fig. 5-2: T-Bar Controls (SL4625 shown)

1. Drive Control T-Bar2. Lift/Tilt T-Bar3. Auxiliary Hydraulics Foot Pedal4. Auxiliary Hydraulics Foot Pedal Stop

2

3

41


FORWARD BACKWARD RIGHTTURN LEFTTURN

RIGHTPIVOT LEFTPIVOT

RAISELIFTARM LOWERLIFTARM BUCKETROLLBACK DUMP

1 2 3 4

5 6

7 9 108

FLOAT

HAND & FOOT CONTROLLED LOADERSSL4625 ONLY (Fig. 5-3)

SL4625 skid loaders are available with hand and foot controls. The handles on the skid loader control the drive

(hydrostatic) functions. The foot pedals control the lift/tilt (hydraulic) functions.

Drive Control Handles

NOTE: Moving the handles equally in the same

direction will result in traveling straight forward or

straight backward.

Forward Travel: Push both handles straight forward

slowly in the same direction.

Reverse Travel: Pull both handles backwards slowly

in the same direction.

Turning During Travel: Move one handle farther

forward or rearward than the other handle. Turn

direction is determined by which handle is moved the

furthest forward; to turn left, move the right handle

farther forward than the left handle.

Fast Turning (Pivoting): Move the handles in opposite

directions. Direction of travel is determined by which

handle is move forward; left handle forward turns the

loader to the right, right handle forward turns the loader

to the left.

Mechanical Auxi l iary Hydraul ics (BEFORE

SN23375): Twist the right handle to control the auxiliary

hydraulic flow. A lock is also provided for retaining the

right hand handle in the auxiliary hydraulics “on”

(detent) position.

Electrical Auxiliary Hydraulics (SN23375 AND

LATER): A switch (momentary) is located on the right

handle. It has three positions: On-Off-On. An additional

switch (detented) is located on the instrument panel for

continuous operation.

NOTE: Speed of motion is determined by engine

speed and how far and fast the handles are moved

away from the neutral position.

WARNINGBE SURE that the handles are in “neutral”BEFORE starting the engine. Operate thehandle controls gradually and smoothly.Excessive speed and quick handle movementsw i t h o u t r e g a r d f o r c o n d i t i o n s a n dcircumstances is hazardous and could causean accident.

Lift/Tilt Foot Pedals

Attachment Travel: The right foot pedal controls the

tilting motion of the attachment. To tilt the attachment

rearward, use your heel to push down on the rear of the

right pedal; to tilt the attachment forward, use your toes

to push down on the front of the right pedal.

Lift Arm Travel: The left foot pedal controls the

raising and lowering motion of the lift arm.

To raise the lift arm, use your heel to push down onthe rear of the left foot pedal.

To lower the lift arm, use your toes to push downon the front of the left pedal.

The system control valve lift spool has a detent circuit

allowing the lowered lift arm to “float” while traveling

over changing ground conditions. To place the lift arm

in the detent (float) position, use your toes to push the

left foot pedal all the way down, past the detent.

WARNINGNEVER push the left foot pedal into the “float”position with the bucket or attachment loadedor raised, because this will cause the lift arm tolower rapidly.

NOTE: The speed of lift/tilt motion is directly

proportional to the amount of foot pedal movement

and engine RPM.


Fig. 5-3: Hand & Foot Controls

1. Left Drive Control Handle2. Lift Control Foot Pedal3. Tilt Control Foot Pedal4. Right Drive Control Handle & Auxiliary Hydraulics

4

32

1


FORWARD BACKWARD RIGHTTURN LEFTTURN

RIGHTPIVOT LEFTPIVOT

RAISELIFTARM LOWERLIFTARM BUCKETROLLBACK DUMP

1 2 3 4

5 6

7 9 108

FLOAT

Automatic Parking Brake

The skid loader is equipped with a spring applied

hydraulic released parking brake. The parking brake

engages when the operator lifts the restraint bar, leaves

the operator’s seat, and/or shuts the engine off.

SL3725 skid loaders before SN8117 and SL3825 skid

loaders before SN13221 (Fig. 5-5):The brake can also

be manually applied by using the switch located just

below the seat in the operator’s compartment.

SL3725 skid loaders SN8117 and later, and SL3825 skid

loaders SN13221 (Fig. 5-4): The brake can also be

applied manually using the switch located on the left

control panel of the ROPS. The red indicator on the

switch lights up when the parking brake is applied.

Operator Restraint Bar (Fig. 5-5)

The operator restraint bar is securely anchored to the

ROPS. The restraint bar switch is wired in series with

the seat switch forming an interlock for the lift arm, tilt,

drive and starter circuits (refer to the “Interlocks” topic

in this chapter for more information).

Lower the restraint bar after entering the operator’s

compartment. Used in conjunction with the seat belt,

the restraint bar serves to keep you in the operator’s

compartment. For operator comfort and convenience,

the restraint bar is padded for use as an arm rest while

operating the loader.

WARNINGNEVER defeat the operator restraint bar or seatswitch electrically or mechanically, andALWAYS wear your seat belt.

Seat Positioning (Fig. 5-5)

The loader seat is mounted on rails for backward or

forward repositioning to accommodate the operator’s

size and comfort. Aspring-loaded latch handle activates

the seat adjustment mechanism.

Battery Disconnect Switch

(Optional) (Fig. 5-6)

On loaders equipped with a battery disconnect switch,

the battery can be disconnected from the electrical

system by turning the switch to the “OFF” position.


Fig. 5-4: Parking Brake Switch

SL3725: SN8117 and laterSL3825: SN13221 and later

Fig. 5-5: Restraint Bar

1. Operator Restraint Bar2. Seat Adjustment Lever3. Seat Belt4 Brake Switch*

*SL3725: Before SN8117*SL3825: Before SN13221

Fig. 5-6: Battery Disconnect Switch

1

32

4

ROPS/FOPS & Lock Mechanism (Fig. 5-7)

The ROPS/FOPS is designed to protect the operator

from falling objects and provide protection if the loader

tips or rolls over provided the operator is secured inside

the ROPS by the seat belt and restraint bar.

For service, unbolt the ROPS and tilt it back slowly,

moving the control handles out of the way. Two

gas-charged springs help tilt it back. A self-actuating

lock mechanism engages to lock the ROPS in a

rolled-back position. To lower the ROPS, apply upward

force on it while pulling the lock mechanism handle

toward the front of the loader. Lower the ROPS slowly

onto the chassis, moving the control handles out of the

way. Reinstall the anchor bolts, washers and locknuts.

WARNINGNEVER operate the loader with the ROPSremoved or locked-back. BE SURE the lockmechanism pin is securely engaged with theROPS tilted back. Properly support the ROPSwhile unlatching the lock mechanism handleand lowering the ROPS. BE SURE to reinstalland secure the front anchor bolts, washers andlocknuts BEFORE resuming loader operation.

Rear Window Emergency Exit (Optional)

The optional ROPS rear window has three functions:

noise reduction, falling objects barrier and emergency

exit.

To use the emergency exit, push or kick the window out

and exit.

See your local automotive glass specialist to replace the

window.

Choke: SL3725 Models Only

The gasoline engine powered SL3725 skid loader is

provided with a choke for cold starting assistance. The

choke knob is located to the right of the left handle

control. After the engine is warm and running smoothly,

BE SURE to push the knob all the way in (see the

Operation chapter of this manual for more details).


Fig. 5-7: ROPS/FOPS Unbolted, Rolled back &Locked

1. Self-actuating Lock Mechanism (engaged)2. Gas-charged Spring (1 of 2)3. ROPS/FOPS4. Lock Mechanism Handle

3

1

2

4

Instrument & Control Panel (Fig. 5-8)

The instrument and control panel contains the following

control switches and indicators. International symbols

on the panel represent various functions, conditions and

switch positions. Symbols are visible only when

indicator lamps are on.

1. Engine Temperature Gauge - Indicates enginecoolant temperature.

2. Fuel Level Gauge - Indicates the amount of fuelremaining in the fuel tank.

NOTE: Reference Items 3 through 9 are indicator

lamps which display the following:

3. Glow Plug Indicator Lamp: (Diesel Only) Thisindicator is ON when the keyswitch is in the “Glowor Preheat” and “Start” positions.

NOTE: The loader engine cannot be started until

the operator sits on the seat and the operator

restraint bar is lowered.

4. Battery - Indicates the condition of the chargingsystem. During normal operation, this indicatorshould be OFF. If the charging voltage is too high ortoo low, this indicator lights.

5. Air Filter Element - During normal operation, thisindicator should be OFF. This indicator lights if theengine air filter element becomes excessively dirtyor clogged, warning the operator that the air filterelement needs replacing.

6. Engine Oil Pressure - During normal operation,this indicator should be OFF. This indicator lights ifthe engine oil pressure drops too low, warning theoperator to IMMEDIATELY stop the engine anddetermine the cause for the pressure drop.

7. Engine Temperature - During normal operation,this indicator should be OFF. This indicator lights ifthe engine coolant gets too hot, warning theoperator to IMMEDIATELYstop the engine. Allowthe engine to cool, determine the cause for the hightemperature condition and correct the problemBEFORE restarting the loader engine.

8. Hydraulic Oil Temperature (SL3825SX and

SL4625SX/DX only)-During normal operation, thisindicator should be OFF. This indicator lights if theHydraulic system oil gets too hot, warning theoperator to IMMEDIATELYstop the engine. Allowthe hydraulic system to cool down beforedetermining the cause of the high temperature.


FUELGAUGE

ENGINE COOLANTTEMPERATURE

GAUGE

10

2

1

15

6

4

3

5

7

9

8

11

14

13

12

16

Fig. 5-8: Instrument & Control Panel

9. Hydraulic Oil Filter - During normal operation,this indicator should be OFF. This indicator lights ifthe hydraulic oil filter becomes excessively dirty orclogged, warning the operator that the filter needsreplacing. Note: When the hydraulic oil is cold, thelight may stay ON for a short time.

10. Hourmeter - Indicates the total operating hours ofthe Loader. The hourmeter is especially useful forlogging time in the “Maintenance Log” located inthe Maintenance chapter of this manual.

11. Keyswitch - International symbols located aroundthe perimeter of the keyswitch denote the keyfunctions and positions. In a clockwise rotation,these positions are:

a. Off Position - With the key vertical (OFF) in

the keyswitch, power from the battery is

disconnected to the control and instrument

panel electrical circuits. This is the only

position that the key can be inserted or removed

from the keyswitch.

b. On or Run Position - With the key turned one

position clockwise (RUN) from the vertical

(OFF) position, power from the battery is

supplied to all control and instrument panel

electrical circuits.

c. Start Position - With the key turned fully

clockwise (START) and held in position, the

electric starter energizes, starting the engine.

release the key after the engine starts (it returns

to the RUN position by itself).

d. Glow or Preheat Position - With the key

turned one position counterclockwise (GLOW)

from the vertical (OFF) position, power is

supplied to the preheat circuits. Individual

lamps for the engine oil pressure, battery, seat

belt and glow are ON.

NOTE: Preheat circuitry is present ONLY on

diesel engines.

12. Light Switch - Controls all the lights (standard andoptional) on the loader. International symbolsdenote the four positions of the light switch. In aclockwise direction these are: Off, Flashers(Hazards), Headlight/Taillight with Flashers(without rear work lights) and Headlight/Taillight(with rear work lights). For the lights to function,the keyswitch MUST be in the ON (RUN) position.

13. Circuit Breakers - Two circuit breakers on theinstrument panel protect the loader electricalcircuits. Access to the circuit breakers is gained byremoving the control panel.

IMPORTANT: Do NOT attempt to defeat the

circuit protection by jumping across the circuit

breaker or by using a higher amperage circuit

breaker.

14. Horn (Optional) - A horn kit is available forinstallation on the skid loader.

15. Fasten Seat Belt - Audible and visual indicationsare provided to remind the operator to fasten theseat belt.

16. Auxiliary Hydraulic Switch (Detent) (Hand/Foot

Models only) - A three-position detented switch usedfor continuous operation.

High-Flow Auxiliary Hydraulic Switch(SL4625DX Models only) - A two-position toggleswitch located near the right hand control handleused to control the operation of the high flowhydraulics.


Interlock System

WARNINGNEVER defeat the interlock system bymechanically or electrically bypassing anyswitches, relays or solenoid valves.

Interlock systems are used on the loader with operator

safety in mind. Together with solenoid valves, switches

and relays, the interlocks:

» Prevent the engine from starting unless the operator

is sitting on the seat and the operator restraint bar is

down.

» Disable the lift arm, attachment tilt and wheel

drives anytime the operator leaves the seat, turns

the keyswitch to OFF or raises the restraint bar.

Gehl Quick-Tach™ Attachment Mounting

(Fig. 5-9)

T h e s k i d l o a d e r s t a n d a r d f e a t u r e s i n c l u d e a

Quick-Tach™ attachment mechanism for mounting a

bucket or other attachment. A single latch lever secures

the attachment. Rotate the lever completely to the left to

engage the lock pins. Rotate the lever to the right to

disengage the lock pins.

Gehl All-Tach™ Attachment Mounting

(Optional) (Fig. 5-10)

The optional All-Tach™ attachment mechanism is

available for mounting a bucket or other attachment.

Two latch levers secure the attachment. Rotate the

levers until the handles are horizontal to engage the lock

pins. Rotate the levers until the handles are vertical to

disengage the lock pins.

WARNINGTo prevent unexpected attachment releasefrom the All-Tach or Quick-Tach attachment,BE SURE to secure the lock pins by rotatingthe All-Tach attachment levers downward intoa horizontal position or the Quick-Tachattachment lever completely to the left.

Lift Arm Support Device (Figs. 5-11 & 12)

The lift arm support device found on the left lift cylinder

is used as a cylinder lock to prevent the raised lift arm

from unexpectedly lowering while servicing the loader.

BE SURE to engage the support device when the lift

arm is raised. When the support device is not being

used, store it under the lift arm using the lock pin. The

lift arm support device is a safety device that MUST BE

kept in proper operating conditional at all times. The

following steps ensure correct use:


Fig. 5-9: Quick-Tach Lever in "Engaged" Position

Fig. 5-10: All-Tach Attachment

Engagement

WARNINGBEFORE leaving the operator’s compartmentto work on the loader with the lift arm raised,ALWAYS engage the lift arm support device.Turn the keyswitch off, remove the key andtake it with you.

To engage the lift arm support device, proceed asfollows:

1. Lower the lift arm fully onto the loader frame.

2. Turn the keyswitch to the OFF position to stop theengine.

3. Leave the operator’s compartment. Remove thelock pin holding the support device up against thelift arm. Allow the support device to come downinto contact with the lift cylinder.

4. Return to the operator’s compartment and restartthe engine.

5. Use the lift control to raise the lift arm until the liftarm support device drops over the end of the liftcylinder and around the cylinder rod. Slowly lowerthe lift arm until the free-end of the support devicecontacts the top end of the lift cylinder.

6. Look to make sure the support device is secureagainst the cylinder end. Then, stop the loaderengine, remove the key and leave the operator’scompartment.

Disengagement

WARNINGNEVER leave the operator’s compartment todisengage the lift arm support device with theengine running.

To return the lift arm support device to its storage

position, proceed as follows:

1. Raise the lift arm completely.

2. Turn the keyswitch to the off position to stop theengine, remove the key and take it with you.

WARNINGBEFORE testing the machine, ALWAYS clearpeople from the area.

3. Before leaving the operator’s compartment, checkto make sure that the lift arm is being held in theraised position by the solenoid valve (see NOTEbelow).

IMPORTANT: With the keyswitch OFF and the

solenoid valve working , the arm will stay raised

when the lift control is moved forward. If the valve

does NOT hold the arm and it begins to lower, do

NOT leave the operator’s compartment. Instead,

have someone store the support device for you.

Then, contact your Gehl dealer to determine the

reason why the lift arm lowers while the keyswitch

is in the OFF position.

4. To store the support device, raise it up until itcontacts the lift arm. Insert the lock pin through thehole in lift arm and through the support device.


Fig. 5-11: Lift Arm Raised and Support DeviceEngaged

1. Lift Arm2. Lift Arm Support Device3. Lock Pin & Retainer Assembly4. Lift Cylinder5. Anchor Pin

Fig. 5-12: Lift Arm Lowered & Support DeviceStored

1. Lift Arm Support Device in "Storage" Position2. Lock Pin & Retainer Assembly3. Lift Cylinder

1

32

5

4

21

3

Auxiliary Hydraulics

Auxiliary hydraulics are used on an attachment that has

a mechanism requiring hydraulic power of its own.

Standard Flow Auxiliary Hydraulics(Fig. 5-13)

SL3825SX, SL4625SX and SL4625DX skid loaders

are shipped from the factory with standard flow

auxiliary front hydraulic connections. A pair of

quick-disconnect fittings, located at the inside left

corner of the lift arm, can be used for operating

attachments (grapple, backhoe, etc.).

T-Bar Controlled Loaders: A foot pedal is used to

control the direction of oil flow. A stop is provided on

SL4625 skid loaders to lock the foot pedal for

continuous operation.

Hand/Foot Contro l l ed Loader : A 3-pos i t ion

momentary switch is located on the right control handle

and a 3-position detented switch for continuous

operation is located on the instrument panel for

operating the auxiliary hydraulic function.

NOTE: Field installed kits are available for adding

auxiliary hydraulics to SL3725, SL3825 and

SL4625 skid loaders. Refer to the Attachments &

Accessories chapter in this manual for ordering

information.

High Flow Auxiliary Hydraulics (Fig. 5-14)

In addition to standard flow auxiliary front hydraulic

connections, SL4625DX skid loaders are equipped with

high flow auxiliary hydraulics. These additional

quick-disconnect fittings are located at the front right

corner of the lift arm. They are used for operating high

oi l f low hydrau l ic a t t achments (co ld p laner,

snowblower, etc.).

A2-position toggle switch located near the right control

handle is used to control the operation of the high flow

hydraulics. The two positions on the toggle switch are:

OFF - Disables the output to the quick-disconnectfittings

ON - Pressurizes the top male fitting


Fig. 5-13: Standard Flow Auxiliary Hydraulics

1. Standard Flow Quick-Disconnects

Fig. 5-14: High Flow Auxiliary Hydraulics

1. High Flow Auxiliary Hydraulics Control Switch2. High Flow Quick Disconnects3. Case Drain Line

1

2

13

CHAPTER 6OPERATION

General Information

CAUTIONBEFORE starting the engine and operating theloader, review and comply with ALL safetyrecommendations set forth in the SAFETYchapter of this manual. Know how to STOP theloader BEFORE starting it. Also, BE SURE tofasten and properly adjust the seat belt andlower the operator restraint bar.

Before Starting Loader

Before starting the engine and running the loader, refer

to the Controls & Safety Equipment chapter in this

manual and familiarize yourself with the various

operating controls, indicators and safety devices on the

loader.

Starting the Loader

WARNINGALWAYS fasten your seat belt and lower therestraint bar BEFORE starting the engine.

The following procedure is recommended for starting

the loader engine:

1. Carefully step up onto the back of the bucket orattachment while grasping the ROPS handles to getinto the operator’s compartment.

2. Fasten the seat belt and lower the restraint bar.

3. Verify the following:

� the lift/tilt and drive control handles are intheir neutral positions

� the auxiliary control (if available) is in neutral

� the brake is on

4. Push the throttle forward to half of full speed.

NOTE: When the key is turned to the “ON”

position, a buzzer will sound momentarily

reminding you to check that your seat belt is

fastened.

5. Turn the keyswitch to the “ON” position.

On Gasoline models (SL3725), if required (asdetermined by the ambient temperature), pull outthe choke knob. Then, turn the key to the Startposition to start the engine. After the engine haswarmed-up, push the choke knob all the way in.

On Diesel models (SL3825 & SL4625), if required(as determined by the ambient temperature, refer tothe glow chart located on or near the instrumentpanel), turn the key to the glow position. Then, turnthe key to the Start position to start the engine.

NOTE: Crank the starter until the engine is started.

if the engine fails to start within 15 seconds, return

the key to the “OFF” position, wait 2 minutes, and

repeat the starting procedure. Cranking the engine

for longer than 15 seconds will result in premature

failures of the starter and the fuel shut-off solenoid.

After the engine starts, allow a sufficient warm-up time

before attempting to operate the controls.


Fig. 6-1: Operator's Compartment

1. Operator's Seat2. Operator Restraint Bar in "Lowered" Position3. Seat Belt

3

12

Cold Starting Procedure

The following procedure should be used when starting a

skid loader in cold temperatures: Turn the key to the

RUN position. If the glow light comes on the instrument

panel, wait until it goes out before turning the key to the

START position.

A block heater is recommended for start ing in

temperatures of 20°F (-7°C) or lower. See your Gehl

dealer for recommended heater options.

Loader Movement

The hydrostatic drive of the skid loader controls

forward and reverse directions and speed. Movement

of the wheels is slowed according to how rapidly the

drive control handle(s) are moved to the straight

“neutral” position.

CAUTIONOperate the drive controls gradually andsmoothly when starting, stopping, turning andreversing loader directions. Excessive speedcan be hazardous. ALWAYS exercise cautionand good judgment while operating the skidloader.

Stopping the Loader

The following procedure is the recommended sequence

for stopping the loader:

1. Check that the drive control handle(s) are in the“neutral” position.

2. Lower the lift arm and rest the attachment on theground.

3. Pull the throttle lever back to the idle position(and/or take your foot off the accelerator pedal forhand controlled machines).

4. Turn the keyswitch key to the off position to shutthe engine off.

5. Raise the restraint bar, unlatch the seat belt andgrasp the handles while climbing out of theoperator’s compartment.

NOTE: The skid loader is equipped with a spring

applied automatic parking brake. The parking

brake is engaged when the operator lifts the

restraint bar, leaves the operator’s seat, shuts the

engine off and/or when the parking switch is in the

on position.

IMPORTANT: High heat and excessive loads may

cause the engine to overheat. See the

Troubleshooting chapter in this manual for further

instruction.


First Time Operation

CAUTIONBE SURE the area being used for test-runningis clear of spectators and obstructions. For thefirst time, operate the loader with an emptybucket.

The smoothest and most efficient loader operation is

achieved running the engine at half-throttle. Make sure

the engine is warm and follow the instructions

appropriate for your type of loader as detailed in the

Controls & Safety Equipment chapter.

Perform all raising and lowering functions, and

combinations of the two functions before operating the

drive controls. ALWAYS lower the lift arm and roll the

bucket back BEFORE proceeding to operate the drive

controls. Return the controls to the “neutral” position to

stop all lift/tilt functions.

Perform all drive control functions before operating

both lift/tilt and drive controls. Return the drive

controls to the “neutral” position to stop all movement.

NOTE: If the engine stalls, all controls must be

returned to their “neutral” positions before

restarting the engine.

Operat ing ski l l s are obta ined through proper

coordination of the loader’s forward and reverse

movements, with raising and lowering the lift arm and

rol l ing the bucket forward and back . To gain

proficiency, practice all control handle operations until

you are capable of performing the movements without

mistake or hesitation.

WARNINGBEFORE leaving the operator’s compartment,BE SURE to lower the lift arm or engage the liftarm support device.

NOTE: If the loader will not start, the lift arm can be

lowered by sitting in the operator’s seat with the

restraint bar down, turning the key to the “ON”

position and then lowering the lift arm.


Fig. 6-2: SL3725 & SL3825 T-Bar Controls

1. Drive Control T-Bar2. Auxiliary Hydraulics Control Foot Pedal3. Foot Throttle4. Hand Throttle5. Lift/Tilt Control T-Bar

Fig. 6-3: SL4625 T-Bar Controls

1. Drive Control T-Bar2. Auxiliary Hydraulics Control Foot Pedal3. Foot Throttle4. Hand Throttle5. Lift/Tilt Control T-Bar

Fig. 6-4: SL4625 Hand & Foot Controls

1. Left Drive Control Handle2. Right Drive Control Handle & Auxiliary Hydraulics3. Hand Throttle4. Attachment Tilting (right foot pedal)5. Attachment Lifting (left foot pedal)

3

51

2

4

2

15

3

4

3

4

2

1

5

Changing Attachments

Gehl Quick-Tach™ Attachment Mounting(Fig. 6-5)

WARNINGTo prevent unexpected attachment releasefrom the Quick-Tach attachment, BE SURE toproperly secure Quick-Tach mechanism lockpins by rotating the latch lever all the way to theleft.

The skid loader features a Quick-Tach attachment

mechanism for mounting a bucket or other attachment.

A single latch lever secures the attachment.

Attaching

1. Rotate the latch lever completely to the right (asviewed from the operator’s compartment) to fullyretract the latch pins.

2. Start the loader engine and make sure the lift arm islowered and in contact with the loader frame.

3. Align the loader squarely with the back of theattachment.

4. Roll the Quick-Tach mechanism forward until themating parts of the mechanism are in-line with andslightly below the hooks on the back of theattachment.

5. Slowly drive the loader forward and, at the sametime, roll the Quick-Tach mechanism back toengage the hooks on the attachment.

6. Stop forward travel when the hooks are engaged butcontinue to roll the Quick-Tach mechanism back topick the attachment up off the ground. Exercise theMANDATORY SAFETY SHUTDOWNPROCEDURE (page 12).

7. With the loader engine OFF, leave the operator’scompartment and swing the latch lever completelyto the left (as viewed from the operator’scompartment) to fully engage the latch pins.

8. To check that the attachment is properly installed,apply down pressure to the attachment prior tooperating.

Detaching

1. Roll the Quick-Tach mechanism backward until theattachment is off the ground. Exercise theMANDATORY SAFETY SHUTDOWNPROCEDURE (page 12).

2. With the loader engine OFF, leave the operator’scompartment, and rotate the latch lever completelyto the right (as viewed from the operator’scompartment) to fully retract the latch pins.

3. Start the loader engine and make sure that the liftarm is lowered and in contact with the loader frame.

4. Roll the Quick-Tach mechanism forward andslowly back the loader until the attachment is freefrom the loader.


Fig. 6-5: Quick-Tach Attachment Mechanism(Engaged)

1. Quick-Tach Latch Lever2. Quick-Tach Latch Pin

12

2

Gehl All-Tach™ Attachment Mounting(Fig. 6-6)

WARNINGTo prevent unexpected attachment releasefrom the All-Tach attachment, BE SURE toproperly secure the All-Tach mechanism lockpins by rotating the latch levers to a horizontalposition.

The skid loader features an All-Tach attachment

mechanism for mounting a bucket or other attachment.

Two latch levers secure the attachment.

Attaching

1. Rotate the latch levers to a vertical position to fullyretract the latch pins.

2. Start the loader engine and make sure the lift arm islowered and in contact with the loader frame.

3. Align the loader squarely with the back of theattachment.

4. Roll the All-Tach attachment mechanism forwarduntil the top edge of the mechanism is below theflange on the backside of the attachment andcentered between the vertical plates.

5. Slowly drive the loader forward and, at the sametime, roll the All-Tach attachment mechanism backto engage the flange on the back side of theattachment.

6. Stop forward travel when the flange is engaged but,continue to roll the All-Tach attachmentmechanism back to pick the attachment up off theground. Exercise the MANDATORY SAFETYSHUTDOWN PROCEDURE (page 12).

7. With the loader engine OFF, leave the operator’scompartment and swing the latch levers to ahorizontal position to fully engage the latch pins.

8. To check that the attachment is properly installed,apply down pressure to the attachment prior tooperating.

Detaching

1. Roll the All-Tach attachment mechanism backwarduntil the Attachment is off the ground.

2. Exercise the MANDATORY SAFETYSHUTDOWN PROCEDURE (page 12).

3. With the loader engine OFF, leave the operator’scompartment and rotate the latch levers completelyvertical to fully retract the latch pins.

4. Start the loader engine and make sure that the liftarm is lowered and in contact with the loader frame.

5. Roll the All-Tach attachment mechanism forwardand slowly back the loader until the attachment isfree from the loader.

Self-Leveling

SL3825SX, SL4625SX and SL4625DX skid loaders

are provided with a hydraulic self-leveling feature. This

feature is designed to keep the attachment level while

the lift arm is being raised. A field installation kit is

available to install this feature on SL3725, SL3825 and

SL4625 skid loaders.


Fig. 6-6: All-Tach Attachment (Disengaged)

1. All-Tach Latch Control Levers2. All-Tach Latch Pins

2

11

2

Material Densities

The table at the right lists densities for some common

materials which could be carried in a bucket. The

densities listed are average values and intended only as

a guide for bucket selection. For a material which is

NOT in the table, obtain its density value before

selecting the appropriate bucket.

To prevent exceeding the rated operating capacities of

the loader, use the Table of Common Materials and

Densities to determine the proper size bucket to use,

based on the type of material to be carried.

SAE Rated Operating Capacities

Model Weight in lbs. Weight in kg.

3725 950 432

3825 1000 455

4625 1350 614

To use the table, find the material name and see what its

maximum density is. Then, divide the rated operating

capacity of the loader by the material density to

determine the maximum size bucket to use for a heaped

load.

NOTE: Where the material density is listed as a

range (Clay at 80-100 lb/ft3, for example), always

use the maximum density (100 lb/ft3 in this

example) for making calculations. (Also, see the

following examples.)

Example 1: If clay (density of 80-100 lb/ft3) is to be

hauled using an SL3725 loader, the maximum bucket

size is (950 lbs � 100 lb/ft3 = 9.5 cubic feet ).

Therefore, you could safely use a bucket that has a

capacity of 9.5 cubic feet or less.

Example 2: If clay (density of 1280-1600kg/m3) is to be

hauled using an SL4625 loader, the maximum bucket

size is (614 kg � 1600 kg/m3 = 0,38 cubic meters).

Therefore, you could safely use a bucket that has a

capacity of 0,38 cubic meters or less.

CAUTIONNEVER exceed the Rated Operating Load ofthe loader as shown on the capacity decal.

Table of Common Materials and Densities

MaterialDensity

(lb/ft3) (kg/m3)

Ashes 35-50 560-800

Brick-common 112 1792

Cement 110 1760

Charcoal 23 368

Clay 80-100 1280-1600

Coal 53-63 848-1008

Concrete 115 1840

Cinders 50 800

Coal-anthracite 94 1504

Coke 30 480

Earth-dry loam 30 480

Earth-wet loam 65 1040

Granite 93-111 1488-1776

Gravel-dry 66 1056

Gravel-wet 90 1440

Gypsum-crushed 115 1840

Iron Ore 145 2320

Lime 60 960

Lime Stone 90 1440

Manure-liquid 65 1040

Manure-solid 45 720

Peat-solid 47 752

Phosphate-granular 90 1440

Potash 68 1088

Quartz-granular 110 1760

Salt-dry 100 1600

Salt-Rock-solid 135 2160

Sand-dry 108 1728

Sand-wet 125 2000

Sand-foundry 95 1520

Shale-crushed 90 1440

Slag-crushed 70 1120

Snow 15-50 240-800

Taconite 107 1712

The Specifications chapter lists the buckets available

and their capacities to help you decide which size

bucket to use. You can always use a smaller capacity

bucket, but NOT a bucket with greater capacity then the

calculated MAXIMUM unless it is only partially filled.


Loader Operations

WARNINGALWAYS maintain a safe distance fromelectric power lines and avoid contact with anyelectrically charged conductor or gas line.Accidental contact or rupture can result inelectrocution or an explosion. Contact the“Digger’s Hotline” or proper local authoritiesfor utility line locations BEFORE starting todig.

Digging with and Loading a Bucket(Figs. 6-7 through 6-10)

To dig with and load a bucket, first lower the lift arm

down into contact with the loader frame and then roll

the bucket’s cutting edge down into contact with the

ground. Move the loader into the material and, as the

engine loads, roll the bucket back slowly and, at same

time, pull back the drive control handle(s) to decrease

the travel speed while still maintaining wheel torque.

When filling the bucket with hard-packed materials, it

may be necessary to raise the lift arm while rolling the

bucket back. Also, avoid driving onto the material to be

picked-up, if at all possible.

WARNINGALWAYS carry the loaded bucket with the liftarm resting on the loader frame. For additionalstability when operating on inclines, ALWAYStravel with the heavier end of loader toward thetop of the incline.

With the bucket filled, back the loader away from the

material and rest the lift arm against the loader frame

before proceeding to the dumping area.

Dumping the Load Onto a Pile

Carry a loaded bucket as low as possible until reaching

the pile. Slowly stop forward motion and raise the lift

arm high enough so that the bucket clears the top of the

pile. Then, slowly move the loader ahead to position the

bucket to dump the material on top of the pile. Empty

the bucket and back the loader away while lowering the

lift arm and rolling the bucket back.


Fig. 6-7: Loading the Bucket

Fig. 6-8: Digging in Hard-packed Materials

Fig. 6-9: Digging in Loose Materials

WARNINGNEVER push the controls into the “float”position with the bucket or attachment loadedor raised, because this will cause the lift arm tolower rapidly.

Dumping the Load Into a Box

Carry the loaded bucket low and approach the truck,

trailer or spreader box squarely with the side of the box.

Stop your approach as close to the side of the box as

possible while allowing for clearance to raise the lift

arm and loaded bucket. Next, raise the lift arm until the

bucket clears the top of the box and move the loader

ahead to position the bucket over the inside of the box.

After the material is dumped, back away from the box

and lower the lift arm while rolling the bucket back.

Dumping the Load Over a Solid Embankment

WARNINGDo NOT drive too close to an excavation orditch; BE SURE the surrounding ground hasadequate strength to support the weight of theloader and the load.

Carry the loaded bucket as low as possible while

traveling to the dumping area. Stop the loader where the

bucket extends hal f -way over the edge of the

embankment. Roll the bucket forward and raise the lift

arm to dump the material. After the material is dumped,

back away from the embankment while lowering the lift

arm and rolling the bucket back.

Scraping with a Bucket (Figs. 6-11 & -12)

For scraping, the loader should be operated in the

forward direction. Position the lift arm down against the

loader frame. Tip the bucket cutting edge at a slight

angle to the surface being scraped. While traveling

slowly forward with the bucket in this position, material

can flow over the cutting edge and collect inside the

bucket.


Fig. 6-10: Carrying the Load

Fig. 6-11: Positioning a Bucket for Scraping

Fig. 6-12: Scraping with a Bucket

Leveling with a Bucket (Fig. 6-13)

Drive the loader to the outer edge of the area to beleveled. Then, with the lift arm down against the frame,push the lift/tilt handle (T-Bar controlled loaders), orleft foot pedal (hand & foot controlled loaders), into the“float” position and roll the bucket forward to place thebucket cutting edge at a 30 to 45 degree angle to thesurface being leveled. Drive the loader backwardsdragging the dirt and, at the same time, leveling it.

NOTE:The “float” (detent) position for T-Barcontrolled loaders is reached by pushing the righthandle all the way forward. For hand & footcontrolled loaders use your toe to push the front ofthe left foot pedal all the way down. This positionopens both work ports to the reservoir and thusallows the lift arm to “float” while the bucket followsthe ground contour.

Highway Travel (Fig. 6-14)

When it becomes necessary to frequently move theloader over long distances, obtain and use a properlyrated loader trailer. For short distance highway travel,attach an SMV (Slow Moving Vehicle) emblem(purchased locally) to the back of the loader. Forhighway operation, obtain and install amber dualflashers or a strobe light. Check state and local laws andregulations.

Lifting & Tie-Down Locations (Fig. 6-14)

Four tie-down holes are provided near the bottom of theloader for inserting chains through to secure the loaderwhile transporting.

If the loader has to be lifted (using a crane), firstpurchase the lifting kit (805805) from your local Gehldealer and install it on the front corners of the loaderusing the holes provided. At the rear of the loader, twolifting holes are provided (one on each rear riser).

Long Term Storage

If your skid loader is to be stored for a long period of

time, the following procedures are suggested.

1. Fully inflate the tires.

2. Lubricate all grease zerks.

3. Check all fluid levels and replenish as necessary.

4. Add stabilizer to fuel per the fuel suppliersrecommendations.

5. Remove the battery, charge fully and store in a cool,dry location.

6. Protect against extreme weather conditions such asmoisture, sunlight and temperature.


Fig. 6-13: Leveling with a Bucket

Fig. 6-14: Lifting & Tie Down Locations

1. Tie-down Hole Location (2 per side)2. Rear Lifting Hole Location (1 per side)3. Lifting Kit Mounting Location (1 per side)4. Slow Moving Vehicle Mounting Holes

2

3

11

4

CHAPTER 7ADJUSTMENTS

Loader Raising Procedure

To raise the skid loader so all four (4) tires ARE NOT

contacting the ground, use the procedure below:

WARNINGBEFORE servicing the machine, exercise theM A N D A T O R Y S A F E T Y S H U T D O W NPROCEDURE (page 12).

WARNINGDO NOT rely on a jack or hoist to maintain the“raised” position without additional blockingand supports. Serious personal injury couldresult from improperly raising or blocking theskid loader.

1. To block the loader, obtain enough solid woodenblocks, so that when stacked, all of the tires areraised off the ground.

2. Using a jack or hoist capable of lifting at thefully-equipped weight of the loader (with allattached options), lift the rear of the loader until therear tires are off the ground.

3. Stack wooden blocks under the flat part of theloader chassis. They should run parallel with, butnot touch, the rear tires (see fig. 7-1).

4. Slowly lower the loader until its weight rests on theblocks. If the tires still touch the ground, raise theloader again, add more blocks and lower again.

5. Repeat Steps 2 through 4 for the front end. Whenthe procedure is finished, all four tires are off theground so they could be removed.

Loader Lowering Procedure

When service or adjustment procedures are complete,

the skid loader can be taken down from the “raised”

position. To lower the loader onto its tires:

1. Using a jack or hoist, raise the front of the loaderuntil its weight no longer rests on the front blocks.

2. Carefully remove the blocks under the front of theloader.

3. Slowly lower the loader until the front tires areresting on the ground.

4. Repeat Steps 1 through 3 for the rear of the loader.When the procedure is finished, all four (4) tiresshould be on the ground and the blocks should beremoved from under the loader.


Fig. 7-1: Skid Loader Properly Blocked(Tires & wheels are removed to show blocks)

WARNINGBEFORE servicing the machine, exercise theM A N D A T O R Y S A F E T Y S H U T D O W NPROCEDURE (page 12).

Engine

Skid loaders are provided with separate engine

maintenance manuals which should be consulted for

eng ine re l a t ed spec i f i c a t i ons , ad ju s tmen t s ,

maintenance and service information.

Control Handles

Both control handles are factory adjusted and should

require NO further readjustment. If the control handles

are removed for service, refer to the Shop Manual or

your Gehl dealer for proper settings and adjustment

details.

Throttle Lever & Accelerator Pedal

The skid loader is equipped with a right hand-operated

throttle lever.

T-Bar Controlled Loaders are also equipped with a

right foot-operated accelerator pedal.

The linkage used to connect the accelerator pedal to the

throttle lever, and the throttle lever to the engine

governor, have adjustable yokes for altering the cable

lengths and amounts of travel required to go from idle

to full speed. Both cables are factory adjusted and

should require NO further readjustment. If the cables

are removed for service, refer to the shop manual or

your Gehl dealer for proper adjustment details.

Besides throttle cable adjustment, the throttle lever

friction pad pressure can be readjusted if the throttle

lever does NOT hold its position. Belleville washers

and a lock nut are used for making this adjustment.

Drive Chains (Fig. 7-2)

Skid loader drive chain tension should be checked every

100 hours of operation. To properly adjust the drive

chain tension on either side of the loader, follow

directions appropriate for your loader model.


Fig. 7-2: SL3725/SL3825 Primary Drive ChainAdjustment

1. Right side primary drive chain adjustment locknut2. Hardware securing right side takeup plate (4)

1

2

2

SL3725/SL3825 Drive Chains (Figs. 7-2 & 3)

Raise the loader off the ground following the “Loader

Raising Procedure” topic at the beginning of this

chapter.

To check chain tension without removing the access

covers, rotate each tire by hand. If the rotation of one tire

causes the other to rotate the same amount, the primary

drive chain needs to be adjusted.If rotation of one tire

doesn’t cause rotation of the other tire, then the wheel

drive chain needs adjustment. More than 1" (25 mm) or

less than 1/8" (3 mm) in either direction of either tire

requires adjustment of the drive chains.

Primary Drive Chain Adjustment

1. Tilt the ROPS back, making sure the lockmechanism engages to prevent the ROPS fromlowering (refer to the Controls & Safety Equipmentchapter).

2. Remove the access cover and gasket located at thetop of the chain case.

3. Loosen, but do not remove the takeup platemounting hardware.

4. From inside the operators compartment, tighten theprimary drive chain adjustment locknut (see fig.7-2) until approximately 1/4" (6 mm) of chaindeflection is obtainable

midway between the sprockets.

5. Retighten the takeup plate hardware.

6. Replenish the chaincase oil level to approximately1" (25 mm) deep, if necessary (see fig. 7-3).

7. Reinstall the chaincase access covers and gaskets.

Front or Rear Drive Chain Adjustment

If the front tire needs adjustment, adjust the front drive

chain. If the back tire, adjust the rear drive chain.

1. Rotate the front and rear tires (by hand) towardseach other so that the slack sides of the chains are atthe top.

2. Remove the rubber caps protecting the nuts.

3. Loosen the jam nut and then tighten the adjustmentnut for the required chain. This will cause the idlerassembly to lower and thereby increase tension onthe chain. Proper tension exis ts whenapproximately 1/4" (6 mm) of chain deflection isobtainable midway between sprockets.

4. Retighten the jam nut.

Follow the “Loader Lowering Procedure” topic at the

beginning of this chapter to return the loader to the

ground.


Fig. 7-3: SL3725 & SL3825 Adjusting Drive Chain Tension (Left side shown, right side typical)

1. Front Adjuster 5. Rear Adjuster2. Primary Drive Chain Takeup Plate 6. Front Drive Chain3. 5/8" Nut & Adjustment Nut 7. Rear Drive Chain4. Primary Drive Chain

3

1

2

6

3

5

74

1" (25 mm) Oil Level

SL4625 Drive Chains (Fig. 7-4)

1. Raise the loader off the ground following the“Loader Raising Procedure” topic at the beginningof this chapter.

2. Remove the access cover at the outside, center ofthe chaincase (between the wheels) to gain accessto the drive chain front and rear take-up assemblies.

3. Rotate the front and rear tires (by hand) towardseach other so that the slack sides of the chains are atthe top.

4. Working through the access hole, loosen the jamnut and lock nut and then tighten the adjustment nuton either of the two chains. This will cause the idlerassembly to lower and thereby increase tension onthe chain. Proper tension is obtained whenapproximately 1/4" (6 mm) of chain deflection isobtainable midway between the sprockets.

5. After the proper chain tension is obtained, retightenthe jam nut and lock nut.

6. Repeat Steps 4 through 5 for the other chain.

7. Repeat Steps 2 through 6 for the other side of loader.

8. If necessary, replenish the chaincase oil level to1/4" deep as measured just below access opening.Then, reinstall both chaincase access covers usingLoctite� #598 Silicon RTV or equivalent betweenthe cover and the chaincase.

9. Follow the “Loader Lowering Procedure” topic atthe beginning of this chapter to return the loader tothe ground.


Fig. 7-4: SL4625 Adjusting Drive Chain Tension (Left side shown, right side typical)

1. Front Adjuster 4. Rear Adjuster2. 5/8" Jam Nut 5. Front Drive Chain3. 5/8" Adjustment Nut & Lock Nut 6. Rear Drive Chain

2

1

5

4

6

3

1/4" (6 mm) Oil Level

2

3

Electric Auxiliary Controls

Adjustment (Fig. 7-5)

If your loader is hand/foot operated, it is equipped with

electrically controlled auxiliary hydraulics. Follow the

procedure below for adjustment of your controls.

1. With the panel switch down, adjust pot #2clockwise until a squealing or ticking in theactuator is heard or felt. Turn counterclockwiseslightly to obtain full retraction without squealingor ticking. Continue turning counterclockwiseanother 1/8 of a turn.

2. With the panel switch down and the handle switchto the left, adjust pot #4 counterclockwise until asquealing or ticking is heard or felt. Turn clockwise

slightly to obtain full extension without squealingor ticking. Continue turning clockwise another 1/8of a turn.

3. With the panel switch up, adjust pot #1counterclockwise until a squealing or ticking isheard or felt. Turn clockwise slightly to obtain fullextension without squealing or ticking. Continueturning clockwise another 1/8 of a turn.

4. With the handle switch to the left, adjust pot #3clockwise until a squealing or ticking is heard orfelt. Turn counterclockwise slightly to obtain fullretraction without squealing or ticking. Continueturning counterclockwise another 1/8 of a turn.


Fig. 7-5: Electric Auxiliary Controls Adjustment

Rocker switch

located on

instrument panel

Actuator

Fuseholder with

5 amp AGC

Blade-type fuse

Gehl harness

Potentiometer

numbers

Controller

From engine harness power -

left front of engine

Clockwise = Retract

CHAPTER 8LUBRICATION

General Information

WARNINGNEVER service this unit when any part of themachine is in motion. ALWAYS BE SURE toe x e r c i s e t h e M A N D A T O R Y S A F E T YSHUTDOWN PROCEDURE (page 12) BEFOREservicing this equipment.

NOTE: The Maintenance chapter in this manual

has tables for recording the dates and hourmeter

readings after lubrication or other service has been

performed; use those tables to keep a log for

maintaining a current service interval record.

Proper routine lubrication is an important factor in

preventing excessive part wear and early failure.

Lubricants

The following chart lists the locations, temperature

ranges and types of recommended lubricants to be used

when servicing this machine. Refer to the separate

engine manual for more information regarding

recommended engine lubricants, quantities required

and grades.

NOTE: Refer to the “Operator Services” topic in

the Service chapter of this manual for detailed

information regarding periodical checking and

replenishing of lubricants.

Greasing

Refer to the following pages for fitting locations and

greasing frequencies. Wipe dirt from the fittings before

greasing them to prevent contamination. Replace any

missing or damaged fittings. To minimize dirt build-up,

avoid excessive greasing.

NOTE: Whenever service is performed on

hydraulic components (valves, cylinders, hoses,

etc.); radiators and hoses; fuel tanks and lines)

prevent fluid from discharging onto the

ground. Catch and dispose of fluid per local waste

disposal regulations.


Hydraulic System Reservoir

Use a Mobil DTE 15M, or Amoco Rykon 46, or equivalentwhich contains anti-rust, anti-foam, and anti-oxidation

additives and conforms to ISO VG46.

Capacity:

Models: SL3725 & SL3825: 8 US gal (30 L)

Models: SL4625: 10 US gal (37,8 L)

Chaincases

Use SAE motor oil.

Capacity (each side):

Models: SL3725 & SL3825: 4 US qts (3,8 L)

Models: SL4625: 6 US qts (5,7 L)

All Grease Fittings

Use No. 2 Lithium-based Grease

Crankcase Oil(Diesel Engine)

Ambient Temperature Grade**

Below 32°F (0°C) SAE 10 or 10W-30

32-77°F (0-25°C) SAE 20 or 15W-40

Above 77°F (25°C) SAE 30 or 15W-40

**Service Classification: API - SH/SJ/CF-4/CG-4

Capacity

Models: SL3825: 6.3 US qts (6 L)

Models: SL4625: 10 US qts (9,5 L)

Crankcase OilGasoline Engine

SH/SJ SAE 10W-30

Capacity

Model: SL3725: 3.5 US qts (3,25 L)

Planetary Gear Oil(SL4625 Model Only)

Use API-GL-5 80W90

Capacity: 1 US qt (0,9 L)

Lubrication Locations

Every 10 Hours (or daily)

1. Grease lift arm pivots (2)

2. Grease lift cylinder pivots (4)

3. Grease tilt cylinder pivots (4 )

4. Grease Quick-Tach™ pivots (2)

5. Check engine oil level

6. Check hydraulic oil level

Every 100 Hours

7. Grease control handle pivots (2)

8. Replace engine oil and filter

9. Check oil level in chaincases

a. SL3725 & SL3825 Models

b. SL4625 Model

10. Check planetary oil level (SL4625 model only)

Every 200 Hours

11. Check governor oil level (SL3725 models only)

12. Grease fitting on governor (SL3725 models only)

Grease Every 500 Hours (Or Annually)

13. Axle Bearings (4)*

14. Replace hydraulic oil

15. Replace chaincase oil

a. SL3725 & SL3825 Models

b. SL4625 Model

* Remove wheels for access to fittings

See the Service chapter of this manual for further details


Fig. 8-1: Control Handle Pivot Fig. 8-2: Lift/Tilt Pivots & Axle Bearings

Fig. 8-3: Planetary Gearcase (SL4625 Only) Fig. 8-4: Governor (Gasoline Models Only)

7

313

4

13

4

10

12 11

Lubrication Chart

Detailed view shown on previous page


500 Hours

200 Hours

100 Hours

10 Hours (or daily)

2 2 16 & 14

11 & 12

5&8

1310

9b15b

9a15a134

3

3

7

Engine Oil Grease Hydraulic Oil Gear Oil

CHAPTER 9ATTACHMENTS & ACCESSORIES

All specifications are in English (metric) unitsThe Gehl Company reserves the right to change specifications without notice.

SL3725 & SL3825 Attachments

Contact your Gehl dealer to order attachments and for information on additional attachments.

Description Weight� Attachment Hook Kit 59 lbs (27 kg)� Backhoes

Model BH8MD (Lift Arm Mounted) 1480 lbs (671 kg)Model BH408 (Lift Arm Mounted) 1350 lbs (612 kg)Model BH8MD (Frame Mounted ) 1480 lbs (671 kg)

12" (305 mm) Power Dig Bucket 125 lbs (57 kg)18" (457 mm) Power Dig Bucket 150 lbs (68 kg)24" (610 mm) Power Dig Bucket 175 lbs (79 kg)

� BroomsModel S24 660 lbs (229 kg)

� Buckets

50" (1270 mm) wide Utility 205 lbs (93 kg)54" (1372 mm) wide Dirt/Construction 200 lbs (91 kg)54" (1372 mm) wide Utility 210 lbs (95 kg)54" (1372 mm) wide Fertilizer 240 lbs (109 kg)60" (1524 mm) wide Utility 235 lbs (106 kg)

60" (1524 mm) wide Light Material 250 lbs (113 kg)60" (1524 mm) wide Produce/Snow 265 lbs (120 kg)

� Pallet ForkPallet Fork with Tines 260 lbs (117 kg)

� Post Hole AugersModel 460 155 lbs (70 kg)Model 1200 205 lbs (93 kg)

6" (152 mm) Auger 50 lbs (27 kg)9" (229 mm) Auger 85 lbs (39 kg)12" (305 mm) Auger 100 lbs (45 kg)14" (356 mm) Auger Extension 30 lbs (14 kg)24" (610 mm) Auger Extension 50 lbs (27 kg)

� Utility Fork and GrappleUtility Fork Grapple 155 lbs (70 kg)Utility Fork 173 lbs (78 kg)

� TrencherModel HT7 550 lbs (249 kg)


SL3725 & SL3825 Accessories

All accessories listed are field installed. Information for field installation of accessories will be provided with the

appropriate kit of parts, if applicable. Contact your Gehl dealer for information on additional accessories, factory

installed accessories or ordering assistance.

Description Weight� Back - Up Alarm Kit 5 lbs (2,3 kg)� Dirt and Rock Teeth, set of 7 (for use with 50" (1270 mm) Utility, 20 lbs (9 kg)

54" (1372 mm) or 60" (1524 mm) Dirt/Construction Buckets only)� Drawbar Kit 10 lbs (4,5 kg)� Dual Element Air Cleaner * 7 lbs (3,2 kg)� Enclosed Alternator - for Diesel Engines 20 lbs (9 kg)� Engine Block Heater - for Gas Engines 2 lbs (0,9 kg)� Engine Block Heater - for Diesel Engines 2 lbs (0,9 kg)� Exhaust Purifier Kit -for Diesel Engines (non -Spark Arresting) 21 lbs (9,5 kg)� Front Auxiliary Hydraulics Kit * 30 lbs (13,6 kg)� Heater/Defroster Kit 19 lbs (8,6 kg)� Horn Kit 5 lbs (2,3 kg)� Hydraulic Self Leveling Kit - Lift Action * 16 lbs (7,3 kg)� Hydraulic Reservoir Heater 5 lbs (2,3 kg)� Hydraulic Coupler Kit (2 Couplers and Fittings) - 1/2" size 5 lbs (2,3 kg)� Light Kit (2 front, 1 rear) * 6 lbs (2,7 kg)� Light Kit - Strobe 10 lbs (4,5 kg)� Light Kit - Dual Flasher and Tail Light 10 lbs (4,5 kg)� Pre - Cleaner 6 lbs (2,7 kg)� Pre - Cleaner - Centrifugal 15 lbs (6,8 kg)� ROPS Enclosure -Rigid All Weather with Door Kit 70 lbs (32 kg)

(order Rear Window for non - SX loaders)� ROPS Enclosure - Vinyl 24 lbs (10,8 kg)� ROPS Front Door Kit 50 lbs (23 kg)� ROPS Front Door Wiper Kit 6 lbs (2,7 kg)� ROPS Rear Window Kit * 10 lbs (4,5 kg)� ROPS Side Window Kit 40 lbs (18 kg)� Seat Belt - 3" (76 mm) Wide (where required by law) 5 lbs (2,3 kg)� Seat/Suspension 32 lbs (14,5 kg)� Sound Deadening Package - Standard* 15 lbs (6,8 kg)� Sound Deadening Package - Deluxe 26 lbs (11,8 kg)� Tilt Cylinder Lock Valve 8 lbs (3,6 kg)� Tires- 7 x 12 Solid on Rim - 1 only 155 lbs (70 kg)� Tires - 27 x 8.5 - 15 4 ply Flotation on Rim -1 only 50 lbs (23 kg)� Tires - 27 x 10.5 - 15 6 ply Flotation on Rim -1 only 65 lbs (29 kg)� Tires - 27 x 8.5 - 15 6 ply Heavy Duty on Rim -1 only 60 lbs (27 kg)� Vandalism Kit 5 lbs (2,3 kg)

* Accessories noted are standard on SX models


SL4625 Attachments

Contact your Gehl dealer to order attachments and for information on additional attachments.

Description Weight� Attachment Hook Kit 62 lbs (28 kg)� Backhoes

Model BH9HD (Frame Mounted) 1606 lbs (728 kg)12" (305 mm) Power Dig Bucket 120 lbs (54 kg)18" (457 mm) Power Dig Bucket 145 lbs (66 kg)24" (610 mm) Power Dig Bucket 170 lbs (77 kg)36" (914 mm) Power Dig Bucket 211 lbs (96 kg)

Model BH8MD (Lift Arm Mounted) 1480 lbs (671 kg)Model BH9MD (Lift Arm Mounted) 1385 lbs (628 kg)Model BH9MD (Lift Arm Mounted with Vertical Stabilizers) 1385 lbs (628 kg)Model BH408 (Lift Arm Mounted) 1350 lbs (612 kg)Model BH609 (Lift Arm Mounted) 1750 lbs (793 kg)

12" (305 mm) Power Dig Bucket 125 lbs (57 kg)18" (457 mm) Power Dig Bucket 150 lbs (68 kg)24" (610 mm) Power Dig Bucket 175 lbs (79 kg)

� BreakerModel HB500 600 lbs (272 kg)

� BroomsModel HB60 Bucket/Sweeper 1000 lbs (454 kg)Model S24 60" (1524 mm) Broom 660 lbs (299 kg)Model S24 72" (1829 mm) Broom 1075 lbs (488 kg)

� Buckets60" (1524 mm) Dirt/Construction 300 lbs (136 kg)60" (1524 mm) Utility 330 lbs (150 kg)60" (1524 mm) Industrial 645 lbs (293 kg)

65" (1651 mm) Dirt/Construction 320 lbs (145 kg)65" (1651 mm) Dirt/Construction with teeth 345 lbs (156 kg)

65" (1651 mm) Light Material 415 lbs (188 kg)65" (1651 mm) Utility 410 lbs (186 kg)68" (1727 mm) Dirt/Construction 450 lbs (204 kg)72" (1829 mm) Produce/Snow 280 lbs (127 kg)

� Cold PlanerCP416 Cold Planer less Drum 1538 lbs (698 kg)Drums available for use with the CP416:

Slot Cutter 2 1/2" (64 mm) wide 54 lbs (25 kg)All Purpose 16" (406 mm) wide 233 lbs (105 kg)

Counterweight Kit 240 lbs (109 kg)Industrial Bucket & Grapple 785 lbs (356 kg)

� Pallet ForkPallet Fork with 2-36" (914 mm) Tines 240 lbs (109 kg)Pallet Fork with 2-42" (1069 mm) Tines 255 lbs (116 kg)

� Post Hole AugersModel 1200 205 lbs (93 kg)Model 1650 370 lbs (168 kg)

6" (152 mm) Auger 50 lbs (27 kg)9" (229 mm) Auger 85 lbs (39 kg)12" (305 mm) Auger 100 lbs (45 kg)18" (457 mm) Auger 140 lbs (64 kg)24" (610 mm) Auger 185 lbs (84 kg)14" (356 mm) Auger Extension 30 lbs (14 kg)24" (610 mm) Auger Extension 50 lbs (27 kg)

� TrenchersModel HT7 700 lbs (318 kg)Model 14B 850 lbs (386 kg)

� Utility Fork & GrappleUtility Fork 220 lbs (100 kg)Utility Fork Grapple 195 lbs (88 kg)

� All-Tach Attachment Kit (To replace Quick-Tach Attachment) 150 lbs (67 kg)� Quick-Tach Kit Attachment (To replace All-Tach Attachment) 150 lbs (67 kg)


SL4625 Accessories

All accessories listed are field installed. Information for field installation of accessories will be provided with the

appropriate kit of parts, if applicable. Contact your Gehl dealer for information on additional accessories, factory

installed accessories or ordering assistance.

Description Weight� Adapter Plate - Bobcat® 135 lbs (61 kg)� Adapter Plate - Toyota® 120 lbs (54 kg)� Auto - Shut Down System (for use on 4625 SX or DX models only) 5 lbs (2,3 kg)� Back - Up Alarm Kit 7 lbs (3,2 kg)� Dirt and Rock Teeth, set of 8 21 lbs (9,5 kg)

(for 60" (1524 mm) or 65" (1651 mm) Dirt/Construction Buckets only)� Drawbar Kit 10 lbs (4,5 kg)� Dual Element Air Cleaner * 7 lbs (3,2 kg)� Enclosed Alternator 10 lbs (4,5 kg)� Engine Block Heater 2 lbs (0,9 kg)� Exhaust Purifier Kit (non - Spark Arresting) 21 lbs (9,5 kg)� Front Auxiliary Hydraulics Kit * 52 lbs (24 kg)� Front Weight Kit 100 lbs (45 kg)� Heater/Defroster Kit 19 lbs (8,6 kg)� Horn Kit 5 lbs (2,3 kg)� Hydraulic Self Leveling Kit - Lift Action * 15 lbs (6,8 kg)� Hydraulic Reservoir Heater 5 lbs (2,3 kg)� Hydraulic Coupler Kit (2 Couplers and Fittings) - 1/2" size (ISO) 5 lbs (2,3 kg)� Hydraulic Coupler Kit (2 Couplers and Fittings) - 3/4" size 5 lbs (2,3 kg)� Light Kit (2 front, 1 rear) * 6 lbs (2,7 kg)� Light Kit - Strobe 10 lbs (4,5 kg)� Light Kit - Dual Flasher and Tail Light 10 lbs (4,5 kg)� Pre - Cleaner - Centrifugal 15 lbs (6,8 kg)� ROPS Enclosure -Rigid All Weather with Door Kit 107 lbs (49 kg)

(order Rear Window for non - SX/DX loaders)� ROPS Enclosure - Vinyl 25 lbs (11,3 kg)� ROPS Front Door Kit 57 lbs (26 kg)� ROPS Front Door Wiper Kit 6 lbs (2,7 kg)� ROPS Rear Window Kit * 10 lbs (4,5 kg)� ROPS Side Window Kit 50 lbs (23 kg)� Seat Belt - 3" Wide (where required by law) 5 lbs (2,3 kg)� Seat/Suspension 32 lbs (14,5 kg)� Sound Deadening Package - Standard * 20 lbs (9 kg)� Sound Deadening Package - Deluxe 26 lbs (11,8 kg)� Tilt Cylinder Lock Valve 8 lbs (3,6 kg)� Tires - 6.5 x 16 Solid on Rim - 1 only 175 lbs (79 kg)� Tires - 7.00 x 15 6 ply on Rim - 1 only 60 lbs (27 kg)� Tires - 10 x 16.5 6 ply Flotation on Rim - 1 only 80 lbs (36 kg)� Tires - 10 x 16.5 6 ply Flotation Narrow on Rim - 1 only 80 lbs (36 kg)� Tires - 29 x 12.5 x 15 6 ply Extra Wide Lug on Rim - 1 only 90 lbs (41 kg)� Tires - 12 x 16.5 6 ply Flotation on Rim - 1 only 125 lbs (57 kg)� Tires - 10 x 16.5 8 ply Heavy Duty on Rim - 1 only 95 lbs (43 kg)� Tires - 12 x 16.5 10 ply Heavy Duty on Rim -1 only 105 lbs (48 kg)� Vandalism Kit 4 lbs (1,8 kg)� Water Tank (for use with Cold Planer) 100 lbs (45 kg)

* Accessories noted are standard on SX/DX models


CHAPTER 10TROUBLESHOOTING

This Troubleshooting Guide lists potential problems, as

well as possible causes and remedies, for Gehl skid

loaders.

When a problem occurs, don’t overlook simple causes.

A malfunction could be caused by something as simple

as an empty fuel tank. After a mechanical failure has

been corrected, be sure to locate the cause of the

problem.

IMPORTANT: DO NOT attempt to service or

repair major components, unless authorized to do

so by your GEHL Dealer. Any Unauthorized

Repair will Void the Warranty.


Electrical System

Problem Possible Cause Remedy

Entire electrical

system does not

function.

20 ampere breakers are tripped.

Connectors at base of ROPS are notproperly plugged-in.

Battery terminals or cables are loose orcorroded.

Battery is faulty.

Refer to the wiring diagram, check circuitand locate trouble (i.e., pinched wires,faulty connections, etc.) before resettingbreaker(s).

Check main harness connectors.

Clean battery terminals and cables andretighten them.

Test battery and replace as needed.

No instrument panel

lamps with keyswitch

turned to “ON.”

20 ampere breaker(s) are tripped.


Refer to the wiring diagram, check circuitand locate trouble before resettingbreaker(s).

Clean battery terminals and cables andretighten them.

Fuel gauge does not

work.

Faulty fuel gauge sender.

Faulty fuel gauge.

Poor connection to fuel gauge.

Replace fuel gauge sender.

Replace fuel gauge.

Check connections.

Engine temperature

gauge does not work.

Faulty temperature sender.

Faulty temperature gauge.

Poor connection to temperature sender.

Replace temperature sender.

Replace temperature gauge.

Check connections.


Electrical System


Hour meter does not

work.

Loose wiring/terminal connections.

Faulty alternator.

Faulty hour meter.

Verify wiring connections.

Repair alternator

Replace hour meter.

Starter will not

engage when key is

turned to “Start”.

Seat or restraint bar switch malfunctioningor not activated.

Poor connections to starter relay ininstrument panel.

Battery terminals or cables loose orcorroded.

Faulty starter relay in instrument panel.

Battery discharged or defective.

Starter solenoid in chassis not functioning.

Ignition wiring, seat switch, restraint barswitch, etc. loose or disconnected.

Starter or pinion faulty.

Operator in the seat with the restraint bardown. Replace switches as needed. Ifengine still doesn’t start, contact you Gehldealer for assistance.

Verify relay connections.

Clean terminals, cables and retighten.

Contact your Gehl dealer for assistance.

Recharge or replace battery.

Troubleshoot circuit per wiring diagram,spot trouble. Replace starter solenoid.

Check wiring for poor connections, brokenleads; repair wiring or connection.

Remove starter; repair/replace as needed.

Battery will not

recharge.


Battery or alternator defective.

Clean battery terminals and cables andretighten them. Replace cables as needed.

Test battery and alternator. Replace asneeded.

Work lights not

functioning properly.

Single light doesn’t work: Light bulb burnedout, faulty wiring.

No lights at all: 20 ampere breaker tripped.

Faulty light switch or poor ground.

Check and replace light bulb as needed.Check wiring connection to light.

Refer to wiring diagram, check circuit, andlocate trouble before replacing fuse.

Replace light switch. Check ground wireconnections.


Engine


Lift/Tilt and/or propel

lock solenoids do not

work.

Wiring to solenoids is disconnected orfaulty.

20 ampere (solenoid) breaker is tripped.

Seat or restraint bar switchmalfunctioning.

Faulty solenoid valve coil.

Refer to wiring diagram, locate trouble,and repair as needed.

Refer to wiring diagram, check circuit,and locate trouble before resettingbreaker.

Sit on seat and lower restraint bar. Ifengine still doesn’t start, contact yourGehl dealer for assistance.


Engine will not crank.

Battery terminals or cables corroded orloose.


Starter solenoid not functioning.

Seat or restraint bar switchmalfunctioning.

Wiring to and from ignition, seat switch,restraint bar switch, etc. is loose ordisconnected.

Starter or pinion faulty.

Clean battery terminals and cables andsecure them tightly.

Recharge or replace battery.

Troubleshoot circuit per wiring diagramsto locate trouble and repair or replacestarter solenoid.

Sit on seat and lower restraint bar. Ifengine still doesn’t start, contact yourGehl dealer for assistance.

Check wiring for poor connections orbroken leads and repair wiring orconnection.

Remove starter and repair or replace asneeded.

Engine cranks but will

not start.

(continued on following page)


Engine cranking speed too slow.

Fuel tank empty.

Glow plug solenoid malfunctioning.

Auxiliary or high flow pedal/switchesengaged or in the “ON” position.

Check battery charge. If after beingrecharged it still does not hold a charge,replace it.

Battery requires recharging or, in coldtemperatures, pre-warm the engine andhydraulic oils.

Check for faulty fuel gauge sender or refillfuel tank.

Check connection and voltage, replace ifneeded.

Position controls/switches to neutralposition.


Engine


Engine cranks but will

not start.

(continued)

Fuel shut-off solenoid not energizing.

Engine and/or fuel not warm enough.

Ambient temperature is too low.

Fuel pump not working.

Air or moisture in the fuel line.

Check electrical connections and voltageto shut-off solenoid.

Cycle glow plugs or check glow plugwiring connections.

Install a block heater.

Refer to your engine manufacturer’smanual.

Bleed system per details in the enginemanufacturer’s manual.

Engine overheats.

Crankcase oil level too low or too high.

Engine overloaded.

Cooling system low on water or coolant.

Fan air circulation blocked or restricted.

Grade of oil improper or excessively dirty.

Exhaust restricted.

Air filter is restricted.

Add or remove oil as required.

Operate loader at 1/2 to full throttle.

Add water or coolant.

With engine OFF, remove blockage orrestriction.

Drain and replace with clean oil of propergrade.

Allow exhaust to cool, then remove therestriction.

Replace the filter.


Hydrostatic System


No response from

either the

hydrostatic drive or

the lift/tilt systems.

Hydraulic oil viscosity is too heavy.

Hydraulic oil supply is to low.

Reservoir strainer is plugged.

Drive is disconnected.

Allow longer warm-up or replace existing oilwith the proper viscosity oil.

Check for low oil level in reservoir. Add oil asneeded.

Remove reservoir cover and clean thestrainer. Inspect reservoir for foreign objectsplugging the system.


Traction drive will

not operate in either

direction.

Automatic parking brake is engaged.

Hydraulic oil supply is low.

Control rod linkage disconnected.

Low or no charge pressure.

Tandem pump relief valves aremalfunctioning.

Push the brake switch off. Also disengagethe automatic parking brake by sitting onseat and lowering restraint bar. If drive stilldoesn’t function, contact your Gehl dealerfor assistance.

Check for low oil level in reservoir. Add oil ifnecessary.

Check linkage connection at T-Bar andneutral centering mechanisms.reconnect linkage.


Inspect and clean the relief valves. Replacethem as needed.

Neutral is difficult to

maintain.

Control rod ball joints loose at T-Bar orpump arm.

Neutral centering mechanism(s) out ofadjustment.

Key is missing in one or both tandempump arms.

Check and tighten or replace components.


Install key and torque cap screw on thepump arm to 30 ft-lbs (40 N·m).

Sluggish response

to

acceleration.

Air in the hydraulic system.

Hydraulic oil supply is too low.

Low hydrostatic system charge pressure.

Drive motor(s) or tandem pump(s) haveinternal damage or leakage.

Engine is not responding under load.

Cycle lift and tilt cylinders to maximumstroke and maintain pressure for a short timeto clear air from system. Also check for lowoil level in Reservoir, fill as needed.

Check for low oil level in reservoir. Add oil asneeded.

Contact your Gehl Dealer for assistance.




Hydrostatic System


Hydrostatic drive is

overheating.

Drive system overloaded continuously.

Lift and tilt system overloadedcontinuously.


Oil cooler fins are plugged with debris.

Loader being operated in a hightemperature area with no air circulation.

Improve efficiency of operation.

Improve efficiency of operation.


Clean oil cooler fins.

Reduce duty cycle and improve aircirculation.

Hydrostatic (drive)

system is noisy.


Air in hydraulic system.


Allow longer warm-up or replace existingoil with the proper viscosity oil.

Cycle lift and tilt cylinders to maximumstroke and maintain pressure for a shorttime to clear air from system. Also checkfor low oil level in reservoir, fill as needed.


Right side doesn’t

drive in either

direction. Left side

operates normally.

Excessive internal leakage in right drivemotor.

Excessive leakage in rear tandem pump.

Key missing on rear pump arm controlshaft.

Relief valves on rear tandem pumpmalfunctioning.

Control rod linkage to rear tandem pumpdisconnected.



Replace the key. Torque cap screw onthe arm to 30 ft-lbs (40 N·m).


Attach control rod linkage.


drive in forward

direction.

Top relief valve on rear tandem pump ismalfunctioning.

Key missing on rear pump arm on controlshaft.

Rear tandem pump malfunctioning.





drive in reverse

direction.

Bottom relief valve on rear tandem pumpis malfunctioning.

Key is missing from rear pump arm onpump arm shaft.

Rear Tandem pump malfunctioning.





Hydrostatic System


Left side doesn’t drive

in either direction.

Right side operates

normally.

Excessive internal leakage in left drivemotor.

Excessive leakage in front tandem pump.

Key missing on front pump arm controlshaft.

Relief valves on front tandem pumpmalfunctioning.

Control rod linkage to front tandem pumpdisconnected.


Refer to the pump manufacturer’s manualfor service procedures. Repair or replacefront pump as needed.



Attach control rod linkage.


in forward direction.

Top relief valve on front tandem pump ismalfunctioning.

Key missing on front pump arm on controlshaft.

Front tandem pump malfunctioning.





in reverse direction.

Bottom relief valve on front tandem pumpis malfunctioning.

Key is missing from front pump arm onpump arm shaft.

Front tandem pump malfunctioning.




Lift/Tilt controls

malfunction.


Hydraulic oil level is low.

System relief valve is malfunctioning.

Drive is disconnected.

Sheared spline or broken shaft in tandempump assembly.

Allow longer warm-up or replace withproper viscosity oil.

Check oil level in reservoir. If oil is low,check for an external leak. Repair andadd oil.


Check for broken or worn pump drivecoupling and replace as needed.

Check spline shaft of pump closest toengine. Replace shaft if broken or ifsplines are sheared.


Hydraulic System


Hydraulic cylinder

action is slow for lift

and/or tilt functions.

Low engine speed.


Hydraulic oil leaking past cylinderpacking.

Lift/Tilt Control is not fully activated.

Worn gear pump.


Lift solenoid valve could bemalfunctioning.

Operate engine at higher speed.

Allow longer warm - up or replaceexisting oil with proper viscosity oil.

Check for control linkage restriction.


Check oil flow at high idle. Flow shouldbe 18 GPM (68 L/min) at 2800 RPM.Repair or replace pump as needed.

Remove reservoir cover and clean thestrainer. Also inspect reservoir for foreignobjects plugging the system.

Check electrical connections to liftsolenoid and repair connections asneeded. If lift solenoid valve is still notfunctioning properly, contact your Gehldealer for assistance.

Lift arm does not

raise, bucket tilt

works properly.

Lift solenoid valve could bemalfunctioning.

Lift spool in control valve not actuated orleaking.

Check electrical connections to liftsolenoid and repair connections asneeded. If lift solenoid valve is still notfunctioning properly, contact your Gehldealer for assistance.

Check hose or tube connection to valve.Check pressure and flow.

Jerky lift arm and

bucket action.

Seat or restraint bar switchmalfunction.

Air in the hydraulic system.

Oil in hydraulic reservoir low.


Check electrical connections to theswitches. Replace as needed.

Cycle lift and tilt cylinders to maximumstroke and maintain pressure for shorttime to clear air from system.

Check and add oil to reservoir as needed.

Remove reservoir cover and clean thestrainer. Also, inspect reservoir for foreignobjects plugging the system.


Hydraulic System


Lift arm doesn’t

maintain raised

position with lift

control in NEUTRAL.

Oil leaking past lift cylinder seals(internal or external).

Oil leaking past lift spool incontrol valve.

Self-Leveling valve malfunctioning.(if equipped)

Leaking hydraulic hoses, tubes, or fittingsbetween control valve and cylinders.


Check valve body for scores or cracks.Contact your Gehl dealer for assistance.


Inspect hoses and tubes, tighten fittingsas needed. Replace hoses or tubes asneeded.

Lift arm will not lower.

Lift cylinder mechanical lock engaged.

Lift solenoid valve malfunctioning.

Restraint bar not lowered.

Seat or restraint bar switchmalfunction.

Disengage lock.

Check electrical connections to solenoid.Repair or replace as needed.

Lower restraint bar.

Check electrical connections to theswitch. Replace switches as needed.

Bucket drifts

downward with tilt

control in

neutral.

Oil leaking past tilt cylinder seals(internal or external).

Self-Leveling valve is malfunctioning.

Leaking hydraulic hoses, tubes, or fittingsbetween control valve and cylinders.



Inspect hoses and tubes, tighten fittingsas needed. Replace hoses or tubes asneeded.

No down pressure on

the bucket.

Control valve in “Float” position.

Tilt cylinders are malfunctioning.(if equipped)

Relief valve in control valve notfunctioning properly.

Take control out of “Float” position.



Bucket does not level

on the lift cycle.

Self-Leveling valve malfunctioning.(If equipped)


Bucket will not tilt, lift

arms work properly.

Tilt solenoid valve malfunctioning.

Tilt spool in control valve not actuated.

Check electrical connections to tiltsolenoid and repair connections asneeded. If tilt solenoid valves are still notfunctioning properly, contact your Gehldealer.

Check linkage and remove restrictions.

CHAPTER 11SERVICE

General Information

WARNINGBEFORE servicing the machine, unlessexpressly instructed to the contrary, exercisethe MANDATORY SAFETY SHUTDOWNPROCEDURE (page 12). After service has beenperformed, BE SURE to restore all guards,shields and covers to their original positionsBEFORE resuming loader operation.

NOTE:All service rout ines, except thosedescribed under the “Dealer Services” topic areowner-operator responsibilities. Refer to theLubrication chapter of this manual for lubricationinformation.

IMPORTANT: More frequent service may berequired under extreme operating conditions thanthe recommended intervals. You decide if youroperation requires more service based on use.

This Service chapter details procedures for performing

routine maintenance checks, adjustments and

replacements. The majority of the procedures are also

r e f e r r e d t o i n b o t h t h e Tro u b l e s h o o t i n g a n d

Maintenance chapters of this manual. Refer to the

separate engine manual provided for engine-related

adjustments and servicing procedure.

IMPORTANT: ALWAYS dispose of wastelubricating oils and hydraulic fluids according tolocal regulations or take them to a recycling centerfor disposal; DO NOT pour them onto the groundor down the drain.

Dealer Services

The following areas of internal components service,replacement and operating adjustments require specialtools and knowledge for servicing and should beperformed only by your authorized Gehl skid loaderdealer.

Hydrostatic Components

The hydrostatic pumps are coupled directly to eachother (in tandem) and to the engine crankshaft.

Hydraulic System Pump

The hydrostatic pumps are coupled directly to eachother (in tandem) and to the engine crankshaft.

Hydrostatic/hydraulic system schematics can be foundin this chapter and used as a guide by the dealer fortroubleshooting and service parts reference.

Valves

The valves consist of control valves and system valves.

Cylinders

The hydraulic cylinders used on the loader are designedwith provisions unique to the loader applicationrequirements.

Electrical Components

Electrical system diagrams can be found in this chapterand used as a guide by the dealer for troubleshootingand service parts reference.


Part Description Part No. Part Description Part No.

Air Cleaner, Single Element 055017 Hydraulic Filter - SL3725 & SL3825 115259

Air Cleaner, Dual, Outer 092397 Hydraulic Filter - SL4625 074830

Air Cleaner, Dual, Inner 092398 Fuel Filter - SL3725 132430

Alternator Belt - SL3725 096682 Fuel Filter - SL3825 & SL4625 114868

Alternator Belt - SL3825 121435 Oil Filters - SL3725 083715

Alternator Belt - SL4625 121964 Oil Filters - SL3825 121433

Governor Belt - SL3725 096679 Oil Filters - SL4625 121965

Replacement Parts

Part numbers may change. Your Gehl dealer will have the latest part number.

Operator Services

Figures 11-1, 2 and 3 show the locations of various

components required for general loader services.

Service Every 10 Hours or Daily

Check Engine Oil Level (Figs. 11-2 & 3)

NOTE: For new units, the first oil change should

be after the first 50-75 hours.

Open the engine access cover. Pull out the dipstick and

check the oil level. Markings on the dipstick represent

both full and low (add oil) levels. Refer to the “Change

Engine Oil & Filter” subtopic under the “Service Every

100 Hours” topic in this chapter for the proper location

and procedures for adding engine oil. Also, refer to the

Lubrication chapter and/or the separate engine manual

for oil viscosity and requirements information.

Check Hydraulic Oil Level (Figs. 11-2 & 3)

The loader has a visual hydraulic oil level indicator

which is located on the chassis right riser. Refer to the

Lubrication chapter for oil recommendations and to the

“Hydraulic Reservoir Oil” subtopic, under the “Service

Every 500 Hours or Yearly” topic, for draining and

replacement information.

Check Seat and Restraint Bar Operation

Electrical switches in the seat and restraint bar MUST

be closed (operator sitting on the seat and the restraint

bar lowered) to complete the circuit and start the engine.

Check Bucket Cutting Edge

The bucket cutting edge should be replaced when it is

worn to within 1" (25 mm) of the bucket body.


Fig. 11-1: General Loader Components

1. Rear Grille Latch & Release Handle2. Fuel Inlet3. Engine Access Cover4. Maintenance Schedule5. Hydraulic Oil Inlet6. Rear Grille

Fig. 11-2: Gasoline Engine Components

1. Radiator Check/Fill Cap2. Air Cleaner (Single element style shown)3. Engine Oil Dipstick4. Engine Oil Fill Cap5. Hydraulic Oil Fill Cap6. Spark Arrestor Muffler

Fig. 11-3: Diesel Engine Components

1. Radiator Check/Fill Cap2. Air Cleaner (Dual element style shown)3. Engine Oil Dipstick4. Engine Oil Fill Cap5. Engine Coolant Reservoir (SL4625 shown, SL3825

reservoir located above air cleaner)

6. Hydraulic Oil Fill Cap7. Spark Arrestor Muffler

2

3

4

5

6

1

4

5

6

3

1

2

3

64

2

1

57

Check Engine Air Cleaner System(Figs. 11-4 & 5)

IMPORTANT: Failure to follow proper filter

servicing instructions could result in catastrophic

engine damage.

Single Element Style

The single element style air cleaner consists of only one

air filter element and does NOT have a monitoring

system. A daily check of the air cleaner system is

required. For a replacement element, refer to the

“Replacement Parts” topic at the beginning of this

chapter.

Access

1. Open the engine access cover then unlatch and openthe rear grille.

2. Remove the element cover by loosening the clampband eyebolt.

Daily Check

1. Clean out any dust or debris that may haveaccumulated in the cover.

2. Inspect the visible area of the element forcleanliness. The element should only be removed ifit is to be replaced.

3. Check the air cleaner hose and clamps, and themounting bracket hardware for secureness.

Element

1. Remove the wing nuts which secures the element.

2. Remove the element from the housing

3. Gehl does not recommend cleaning of the filter.However if it is done, use the following procedure:

4. Compressed Air (maximum pressure - 30 PSI(200 kPa)): Move the air nozzle up and down theinside of the element as you rotate it. DO NOT rapthe element on a hard surface.

Reinstallation

1. Check the inside of the housing for any damage thatmay interfere with the element.

2. Make sure the element is seated properly.

3. Make sure that the rubber gasket is in goodcondition and seated properly before tightening thewing nut. A new wing nut and rubber gasket issupplied with the replacement element.

4. Replace the cover and tighten the clamp band.

Dual Element Style

The dual element style air cleaner consists of an outer

primary filter element and an inner safety filter

element. A factory-installed dual element air cleaner

has an air filter indicator light on the instrument panel

for monitoring the condition of the filter element.

During normal loader operation, this indicator should

be OFF. If the elements become restricted, the indicator

will light to warn the operator that the elements require

service.

The outer element should be replaced only when the

restriction indicator lights up. The inner element should

be replaced every third time the outer element is

replaced or cleaned, unless the outer element is

damaged or the inner element is dirty.

Along with a daily check of the indicator, check the air

cleaner hose and clamps and the mounting bracket

hardware for secureness.

Access

1. Open the engine access cover then unlatch and openthe rear grille.

2. Remove the element cover by loosening the clampband eyebolt.


Fig. 11-4: Single Element Type Air Cleaner

1. Element Housing & Inlet Assembly2. Clamp Band & Tightener Eyebolt3. Filter Element4. Wing Nut5. Baffle6. Element Cover

1

2

3

5

4

6

Outer Element

1. Remove the wing nut and rubber gasket whichsecure the outer element.

2. Remove the outer element from the housing.NEVER remove the inner element unless it is to bereplaced.

3. Clean out the dirt built up in the housing. Keep theinner element installed during this step to preventdebris from entering the engine intake manifold.

4. Gehl does not recommend repeated cleaning of theouter filter. However if it is done, use the followingprocedure:

5. Compressed Air (maximum pressure - 30 PSI or200 kPa): Move the air nozzle up and down theinside of the element as you rotate it. DO NOT rapthe element on a hard surface.

6. Always inspect the outer element beforereinstalling it. Be sure that the filter media has notdeveloped any holes and that the structure of theelement is not damaged in any way. Insert a lowwattage troublelight inside the filter to betterinspect the filter.

Inner Element

NOTE: Replace the inner element only if it is dirty

or if the outer element has been cleaned or

replaced three times.

1. Before removing the inner element from thehousing, clean out the dirt built up in the casing.Keeping the inner element installed during this stepwill prevent debris from entering the engine intakemanifold. To remove the inner element, remove thewing nut and gasket securing the inner element.

Reinstallation

1. Check the inside of the casing for any damage thatmay interfere with the elements.

2. Make sure that the elements are seated properly.

3. Make sure that the rubber gaskets are in goodcondition and seated properly before tightening thewing nuts. New wing nuts and rubber gaskets aresupplied with replacement elements.

4. Replace the cover and tighten the clamp band.

Check the tube connections and make sure they areall engaged and tightened properly.

Check Radiator Coolant Level(Figs. 11-2 & 3)

WARNINGDo NOT remove the radiator cap when theengine is HOT or overheated. Coolant isextremely HOT and under pressure and it canburn your skin. Wait for the engine to cooldown BEFORE relieving the pressure andremoving the radiator cap.

Diesel engine powered loaders are provided with a

coolant overflow reservoir for checking coolant level

and for filling the radiator. ALWAYS check the fluid

level when the engine is cool.

To access to the reservoir, unlatch and open the rear

grille then open the engine access cover. Maintain the

coolant level at or just above the “COLD” mark on the

reservoir. Refer to the engine manual for anti-freeze

recommendations and to the “Flushing Radiator &

Replacing Anti-freeze” subtopic, under the “Service

Every 500 Hours or Yearly” topic in this chapter, for

coolant draining and replacement details.


Fig. 11-5: Dual Element Type Air Cleaner

1. Air Cleaner Restriction Sensor Switch2. Element Housing & Inlet Assembly3. Clamp Band & Tightener Eyebolt4. Inner Filter Element5. Wing Nut (2)6. Element Cover7. Vacuator Valve8. Outer Filter Element

6

4

5

3

2

1

8

7

Gasoline engine powered loaders do NOT have an

overflow reservoir. To check coolant level on these

loaders, access the radiator and (when the engine is

COOL) remove the radiator cap. Fluid level should be

just below the neck of the filler hole.

Check Fuel Filter/Water TrapDiesel Engine Only (Fig. 11-6)

The water trap removes water from the fuel and depositsthe water at the bottom of the filter. Turn the drain knobon the bottom of the trap to discharge water until onlyfuel is flowing from the outlet.

Lubricate All Lift Arm & Cylinder Pivots

Lubricate the fittings on both ends of all four cylinders.

Lubricate both lift arm pivot fittings. Refer to details in

the Lubrication chapter.

Clean Radiator & Oil Cooler Fins

WARNINGDo NOT remove the radiator cap when theengine is HOT or overheated. Coolant isextremely HOT and under pressure and it canburn your skin. Wait for the engine to cooldown BEFORE relieving the pressure andremoving the radiator cap. Also, Do NOT reachinto the area between the radiator and oilcooler with the engine running. The fan bladeis exposed and touching it could cause seriousinjury.

NOTE: SL3825 and SL4625 skid loaders are

provided with a “tip-back” radiator to remove

debris lodged between the radiator and oil cooler.

Refer to the radiator inspection/cleaning decal on

the side of the radiator for details.

CAUTIONAllow sufficient time for the radiator andhydraul ic oi l cooler to cool BEFOREattempting to work around either item. Partsget extremely HOT during operation and canburn you.

The radiator and the oil cooler assemblies are mounted

between the engine and the hinged rear grille. When

working properly, air is blown through the openings

between the coils and fins by the engine fan. Over a

period of normal operation, dust and debris will

build-up on the engine side of the radiator and oil cooler

and restrict air flow through the fins. To reduce or

remove this restriction, use a hose and direct the water

flow through the fins from the rear of the radiator.


Fig. 11-6: Diesel Engine Components

1. Radiator Drain Cock2. Spin-on Fuel Filter/Water Trap3. Battery4. Hydraulic Oil Strainer Access Cover & Gauge5. Spin-on Hydraulic Filter

Fig. 11-7: Gasoline Engine Components

1. Radiator Drain Cock2. Fuel Filter(at Fuel Inlet on Carburetor)3. Battery4. Hydraulic Oil Strainer Access Cover & Gauge5. Spin-on Hydraulic Filter

3

2 1

4

5

65

1

3

24

Check Tire Pressures

WARNINGInflating or servicing tires can be dangerous.

Whenever possible, trained personnel should

service and/or mount tires. To avoid possible

death or serious injury, follow the safety

precautions below:

� BE SURE the rim is clean and free of rust.

� Lubricate both the tire beads and rimflanges with a soap solution. Do NOT useoil or grease.

� Do NOT place your fingers on the tire beador rim during inflation.

� Use a clip-on tire chuck with a remote hoseand gauge which allows you to stand clearof the tire while inflating it.

� NEVER inflate beyond 35 PSI (240 kPa) toseat the beads. If the beads have NOTseated by the time the pressure reaches 35PSI, deflate the assembly, reposition thetire on the rim, relubricate both parts andre-inflate. Inflation pressure beyond 35 PSIwith unseated beads may break the bead orrim with explosive force sufficient to causedeath or serious injury.

� After seating the beads, adjust the inflationpressure to the recommended operatingpressure listed.

� Do NOT weld, braze, or otherwise attemptto repair and use a damaged rim.

Tire Inflation Pressures

Tire Size and Description

InflationPressure

PSI kPa

27 x 8.50 - 15 4-ply Flotation 35 240

27 x 10.50 - 15 4-ply Wide Flotation 40 275

7.00 x 16 6-ply 55 380

10.00 x 16.5 6-ply Flotation 45 310

12 x 16.5 6-ply Flotations 40 275

29 x 12.5 - 15 6-ply X-Wide Lug 45 310

27 x 8.5 x 15 6-ply Heavy Duty 65 450

10 x 16.5 8-ply Heavy Duty 50 345

12 x 16.5 10-ply Heavy Duty 65 450

Correct tire pressure should be maintained for all tires to

enhance operating stability and extend tire life. Refer to

the chart for the proper inflation pressure.

When installing tires, BE SURE that the tires are the

same size and style on the same side of the loader.

ALWAYS replace tires with the same size as the original

equipment.


Service Every 100 Hours

Check Planetary Gearcase Oil (Fig. 11-8)

SL4625 Only: Each planetary gearcase contains

approximately 1 quart (0,9 liter) of 80W90 oil. An

inspection fill plug is provided on each gearcase for oil

checking and refilling. Unbolt, roll-back and lock the

ROPS and remove the operator ’s compartment

floorplate to gain access to the plugs. Add oil through

the inspection fill plug until it begins to flow from the

plug.

Replace Engine Oil & Filter(See Figs. 11-2 & 3)

SL4625SX &SL4625DX are equipped with a remote

oil filter which is located on the left inside riser under

the engine cover. Access for draining the engine oil is

gained by removing the bellyplate cover.

SL3725, SL3825, SL3825SX & SL4625: Access for

draining the engine oil and changing the filter is gained

by removing the bellyplate cover.

Access for adding new oil is obtained by opening the

engine access cover. Refer to the Lubrication chapter in

this manual for oil recommendations and quantity and

to the separate engine manual for oil filter and oil

changing procedure.

For replacement spin-on oil filter elements, refer to the

“Replacement Parts” topic at the beginning of this

chapter.

Lubricate Handle Pivots

Refer to the Lubrication chapter in this manual for

details. To gain access to the fitting, slide the rubber

boot up.

Tighten Wheel Lug Nuts, Check Drive ChainTensions & Check Oil in Chaincases

Retorque the lug nuts to 130 ft-lbs (175 N·m).

Check the drive chain tension following the procedure

under the “Drive Chains” topic in the Adjustments

chapter of this manual.

Each SL3725 & SL3825 drive chaincase requires 1

ga l lon (3 ,8 l i t e r s ) o f SAE motor o i l . (F i l l t o

approximately 1" (25 mm) deep).

Each SL4625 drive chaincase requires 1.5 gallons (5,7

liters) of SAE motor oil. (Fill to approximately 1/4" (6

mm) deep).

This quantity of oil should be maintained at all times.

Clean Spark Arrestor Muffler(Figs. 11-2 & -3)

IMPORTANT: Loaders are factory-equipped with

a USDA Forestry Service approved spark arrestor

muffler. Muffler maintenance is required to keep it

in working condition. Refer to local laws and

regulations for spark arrestor requirements.

To clean the muffler, open the rear grille and the engine

access cover. Loosen the front muffler clamp and

remove the rear clamp and muffler. Dump the contents

from the spark chamber and then reinstall muffler.

Check that the muffler clamps are secure and, after

starting the engine, that the exhaust system is quiet and

NOT leaking.

Check Alternator/Fan Belt Tension &Condition

Refer to the Adjustments chapter and the separate

engine manual for setting proper belt tension. If the belt

is worn, cracked or otherwise deteriorated, replace the

belt following the procedure in the separate engine

manual. For SL3725 models, also check governor belt.

For replacement alternator and governor belts, refer to

the “Replacement Parts” topic at the beginning of this

chapter.


Fig. 11-8: SL4625 Planetary Gearcase

Inspection Fill Plug on Right Planetary Gearcase

Check Battery

WARNINGBefore servicing the battery or electricalsystem, be sure the battery disconnect switch(if equipped) is in the “OFF” position. If notequipped with a disconnect switch,disconnect the ground (-) terminal from thebattery.

The battery furnished on the skid loader is a 12 volt,wet-cell battery. Access to the battery is gained byunlatching and opening the rear grille.

The top of the battery MUST always be kept clean.Clean the battery with an alkaline solution (ammonia orbaking soda and water). After the foaming has stopped,flush the top of the battery with clean water. If theterminals and cable connection clamps are corroded orhave a build-up, disconnect the cables and clean theterminals and clamps with the same alkaline solution.

Handling the Battery Safely

WARNINGExplosive gas is produced while a battery is inuse or being charged. Keep flames and sparksaway from the battery area. ALWAYS chargethe battery in a well-ventilated area.

NEVER lay a metal object on top of a batterybecause a short circuit can result.

Battery acid is harmful on contact with skin orfabrics. If acid spills, follow these first aid tips:

1. IMMEDIATELY remove any clothing onwhich acid spills.

2. If acid contacts the skin, rinse theaffected area with running water for 10 to15 minutes.

3. If acid contacts the eyes, flood the eyeswith running water for 10 or 15 minutes.See a doctor at once. NEVER use anymedication or eye drops unlessprescribed by the doctor.

4. To neutralize acid spilled on the floor, useone of the following mixtures:

a. 1 pound (0,5 kg) of baking soda in 1gallon (4 liters) of water

b. 1 pint (0,5 liters) of householdammonia in 1 gallon (4 liters) of water

Whenever the battery is removed, BE SURE todisconnect the negative (-) battery terminalconnection first.

Jump-Starting

If the loader battery becomes discharged or does NOT

have enough power to start the engine, use jumper

cables and the following procedure to jump-start the

loader engine.

WARNINGThe ONLY safe method for jump-starting a

discharged battery is for TWO PEOPLE to

perform the procedure. The second person

removes the jumper cables so that the operator

does not have to leave the operator’s

compartment with the engine running. NEVER

make jumper cable connections directly to the

starter solenoid of either engine. DO NOT start

the engine from any position other than on the

operator’s seat and then ONLY after assuring

ALL controls are in “neutral.”

Closely follow the steps, in order, to avoid

personal injury. In addition, wear safety glasses

to protect your eyes and avoid leaning over the

batteries while jump-starting.

Do NOT jump-start the battery if it is frozen,because it may rupture or explode.


NOTE: BE SURE that the jumper battery is also a

12 volt D.C. battery.

1. Turn the keyswitches of both vehicles to OFF andmake sure that both vehicles are in “neutral” andNOT touching each other.

2. Connect the positive (+) jumper cable to thepositive (+) battery terminal on the disabled loaderfirst. DO NOT allow the jumper’s positive cableclamps to touch any metal other than the positive(+) battery terminals. Connect the other end of thepositive jumper cable to the jumper battery positive(+) terminal.

3. Connect the negative (-) jumper cable to the jumpervehicle’s battery negative (-) terminal.

4. Make the final negative (-) jumper cable connectionto the disabled loader’s engine block or loaderframe (ground) — NOT to the disabled battery’snegative post. If connected to the engine, keep thejumper clamp away from the battery, fuel lines ormoving parts.

5. Start the loader. If it does not start at once, start thejumper vehicle engine to avoid excessive drain onthe booster battery.

6. After the disabled loader is started and runningsmoothly, have the second person remove thejumper cables, negative (-) jumper cable first, fromthe jumper vehicle’s battery and then from thedisabled loader while being sure NOT to short thetwo cables together.

Allow sufficient time for the skid loader alternator to

build up a charge in the battery before attempting to

operate the loader or shut the engine off.

Service Every 200 Hours

Replace Hydraulic Filter Element(Figs. 11-6 & 7)

NOTE: On SX/DX models, replace the filter

element when the indicator light is on.

To gain access to the spin-on hydraulic filter element,

unlatch and open the rear grille. Drain the oil out to a

level which is at least below the point where the filter

attaches to the reservoir.

For replacement spin-on hydraulic filter elements, refer

to the “Replacement Parts” topic at the beginning of this

chapter.

Check Radiator Hoses & Clamps

Check for coolant leaks and deteriorated hoses.

Check Governor Oil Level &Grease Fitting on Governor

NOTE: This procedure is required for servicing

gasoline powered loaders, ONLY. Refer to the

separate engine manual for details.


Service Every 500 Hours or Yearly

Grease Axle Hubs

Refer to the Lubrication chapter for details.

Retighten Engine Mounting Hardware

ALL bolts which secure the engine mounting brackets

to both the engine and the loader frame should be

checked and re-tightened, as necessary.

Replace Fuel Filter (Figs. 11-6 & 7)

SL3725: unlatch and open the rear grille and raise the

engine access cover to gain access to the fuel filter. The

filter is located at the carburetor inlet.

SL3825 & 4625: unlatch and open the rear grille to gain

access to the fuel filter. Use small pieces of wood

between the jaws of a vice grip pliers to stop fuel flow to

the filter BEFORE removing the through bolt and filter

cartridge. Be sure to remove the vice grips after the new

cartridge is installed and then check for leaks.

For replacement fuel filters, refer to the “Replacement

Parts” topic at the beginning of this chapter.

Change Hydraulic Oil & Clean Strainer(Figs. 11-6 & 7)

The hydraulic oil is contained in the reservoir (and the

hoses and other components of the hydraulic system).

The reservoir is built into the right chassis riser and a

drain plug is provided in the bottom of the riser. Refer to

the Lubrication chapter for recommended oil types and

viscosity information. BE SURE to replace and secure

the drain plug before installing new oil.

The hydraulic oil strainer is located inside the hydraulic

reservoir. The hydraulic oil MUST be drained to a level

below the Access cover (with built-in oil level

indicator) before attempting to service the strainer.

Access for strainer removal is gained by unlatching and

opening the hinged rear grille and raising the engine

cover. To remove and clean the strainer, proceed as

follows:

1. Remove the access cover from the inside right riserwall.

2. Reaching in through the access cover hole, unscrewand remove the strainer.

3. Use a filter cleaner solution (mixed according to thecleaner manufacturer’s specifications) and soak thestrainer for about 15 to 30 minutes.

4. After the strainer has been soaked, thoroughly rinseoff all residue and solution with clean water from afaucet or garden hose. Then, use clean, dry,compressed air with a pressure of less than 30 PSI(210 kPa) to blow the strainer dry.

5. Once the strainer is thoroughly dry, reinstall thestrainer in the reverse order of disassembly.

6. Replenish reservoir with hydraulic oil.

WARNINGDo NOT remove the radiator cap when theengine is HOT or overheated; coolant isextremely HOT and under pressure and it canburn your skin. Wait for the engine to cooldown BEFORE relieving the pressure andremoving the radiator cap. Also, Do NOT reachinto the area between the radiator and oilcooler with the engine running. The fan bladeis exposed and touching it could cause seriousinjury.

Flush Radiator/Replace Coolant(See Figs. 11-6 & 7)

To gain access to the radiator, unlatch and open the rear

grille and open the engine cover. Open the drain valve

(petcock) at the bottom of the radiator to drain the

coolant (on some models, the petcock is located on the

end of a drain hose). An additional drain valve is

provided on the engine for draining the engine block

(refer to the separate engine manual, for details and

location).

Using a hose, flush water through the radiator. After the

radiator is flushed, close the drain valve(s) and refill

with a 50/50 premixed antifreeze until coolant is at the

top of the radiator. Install the radiator cap (on SL3825 &

SL4625 models, run the engine until it is at normal

operating temperature and then check the engine

coolant reservoir and replenish with coolant, as

necessary). Refer to the engine manual for coolant

recommendations.


Change Chaincase Oil (Figs. 11-9 & 10)

Fill the chaincase with new oil after every 500 hours of

operation or annually.

Raise the loader off the ground following the “Loader

Raising Procedure” located at the beginning of the

Adjustments chapter of this manual.

Follow the directions below for your loader type.

SL3725 & SL3825 Loaders

1. Unbolt, tilt-back and lock the ROPS.

2. To gain access to the drive chains, remove theaccess cover and gasket located at the top of eachchaincase.

3. Remove rear wheels to gain access to the chaincaseoil drain plug. The plug is the lower rear bolt of therear axle housing. See Fig. 11-9.

4. Remove the plug and drain the oil from thechaincase.

5. Remove any debris or sludge from the chaincase.

6. Using a thread sealant, install the plug and refillchaincase with approximately 1 gallon (3.8 liter) ofSAE motor oil.

7. Replace chaincase access covers and gaskets.

8. Install the wheels.

9. Follow the “Loader Lowering Procedure” locatedat the beginning of the Adjustments chapter toreturn the loader to the ground.

10. Lower the ROPS and secure with anchor bolts.

SL4625 Loaders

1. To gain access to the drive chains, remove theaccess cover located on the outside center of thechaincase on both sides between the wheels.

2. Locate the oil drain plug which is located on thelower rear of the chaincase. See Fig. 11-10.

3. Remove the plug and drain the oil from thechaincase.

4. Remove any debris or sludge from chaincase.

5. Using a thread sealant, install the plug, then refillchaincase with approximately 1.5 gallons (5,7liters) of SAE motor oil.

6. Replace the chaincase access covers usingLoctite® 598 Silicon RTV or equivalent betweenthe cover and the chaincase.

7. Follow the “Loader Lowering Procedure” at thebeginning of the Adjustments chapter to return theloader to the ground.


Fig. 11-9 SL3725 & SL3825 Chaincase Drain Plug

Fig. 11-10: SL4625 Chaincase Drain Plugs

SL3725 & SL3825 Hydrostatic/Hydraulic Schematic


SL3825SX Hydrostatic/Hydraulic Schematic


SL4625 Hydrostatic/Hydraulic Schematic


SL4625SX Hydrostatic/Hydraulic Schematic


SL4625DX Hydrostatic/Hydraulic Schematic


SL3725 Wiring Schematic (SN8117 & Later)


SL3725 Wiring Schematic (Before SN8117)




34 YL

13 RD

2 RD

5 WH

2 RD

5 WH

SL4625 Wiring Schematic


NOTES


CHAPTER 12DECAL LOCATIONS

General Information

CAUTIONALWAYS follow the safety precautions listedon decals. If decals become damaged or if theunit is repainted, the decals MUST be replaced.If repainting, BE SURE ALL decals that apply toyour machine are properly affixed.

Decal location information is provided to assist in the

proper selection and application of new decals, in the

event the original decals become damaged or the

machine is repainted.

For correct replacement of decals, compare the close-up

location photographs to your machine BEFORE

starting to refinish the unit. Check-off each required

decal using the illustration reference number to find the

part number, description and quantity in the list. Refer

to the appropriate illustration for replacement locations.

NOTE: Refer to the Safety chapter of this

Operator’s Manual for specific information on all of

the various safety decals.

New Decal Application

Surfaces MUST be free from dirt, dust, grease and other

foreign material before applying the new decal. To

apply a decal, remove the smaller portion of the backing

paper and apply this part of the exposed adhesive

backing to the clean surface while maintaining proper

position and alignment. Slowly peel off the other

portion of the backing paper while applying hand

pressure to smooth-out the decal surface.

Paint Finish

Use this list to order paint for refinishing:

906213 One gal Yellow

906323 One qt Charcoal Grey

906317 One gal Charcoal Grey

906214 6 (12 oz. spray cans) Yellow

906318 6 (12 oz. spray cans) Grey



REF.NO. DESCRIPTION SL3725 SL3825 SL3825SX SL4625 SL4625SX SL4625DX

1 Red Reflector 067493 (2) 067493 (2) 067493 (2) 067493 (2) 067493 (2) 067493 (2)

2 Non-Skid Surface Strip 064873 (2) 064873 (2) - 121030 (4) 121030 (4) 121030 (4)

3 Emergency Exit - - 129133 - 129133 129133

4 Hydraulic Oil 072794 072794 072794 072794 072794 072794

5 Hydraulic Oil Level 079362 079362 079362 079362 079362 079362

6 Gasoline Symbol 072796 - - - - -

7 Choke Symbol 072795 - - - - -

8 Diesel Fuel - 072797 072797 072797 072797 072797

9 Coolant Mixture 056859 056859 056859 - - 056859

10 Coolant Under Pressure 072798 072798 072798 072798 072798 072798

11 Glow Plug - 088791 088791 088791 088791 088791

12 Hydraloc™ 130297 130297 130297 130297 130297 130297

13 Made in USA 094951 094951 094951 094951 094951 094951

14 Filter Selection 129422 129422 129422 129138 129138 129138

15 Service 129267 129267 129267 129267 129267 129267

16 Radiator Inspection Cleaning - 122239 122239 122239 122239 122239

17 Operating Capacity - - - 094583 094583 094583

18 Brake Switch1 123783 123783 123783 123783 123783 123783

19 Turtle-Rabbit 073075 073075 073075 073075 073075 073075

20 Auxiliary Hydraulic Switch - - - - - 123598

21 Forward/Reverse (Hand & Foot controls only) - - - 134060 (2) 134060 (2) 134060 (2)

22 Lift (Hand & Foot controls only) - - - 123380 123380 123380

23 Tilt (Hand & Foot controls only) - - - 123381 123381 123381

24 Lift/Tilt (T-Bar controls only) 072853 072853 072853 072853 072853 072853

25 Traction (T-Bar controls only) 072854 072854 072854 072854 072854 072854

26 Auxiliary Hydraulics (T-Bar controls only) - - 094584 - 094584 094584

27 DANGER - Lift Arm Mechanical Lock 129132 129132 129132 129132 129132 129132

28 DANGER - Avoid Electrical Contact 093202 093202 093202 093202 093202 093202

29 DANGER - Lift Arm Raised 091035 091035 091035 091035 091035 091035

30 DANGER - Rotating Component 091050 091050 091050 091050 091050 091050

31 DANGER - Personlift L65928 L65928 L65928 L65928 L65928 L65928

32 DANGER - Heating Unit Grounding 093484 093484 093484 093484 093484 093484

33 IMPORTANT - Ether 114316 114316 114316 114316 114316 114316

34 IMPORTANT - Locate Operator’s Manual 093366 093366 093366 093366 093366 093366

35 WARNING - Operator’s Manual 093367 093367 093367 093367 093367 093367

36 WARNING - Carry Load Low 093475 093475 093475 093475 093475 093475

37 WARNING - General Safety 093474 093474 093474 093474 093474 093474

38 WARNING - ROPS/FOPS Safety Latch 093477 093477 093477 093477 093477 093477


40 WARNING - Quick-Tach Locking Pin 122718 122718 122718 122718 122718 122718

41 WARNING - Gas-Charged Cylinders 122745 122745 122745 122745 122745 122745

42 WARNING - Do Not Open 129130 129130 129130 129130 129130 129130

43 WARNING - General Warnings 129258 129258 129258 129258 129258 129258

44 WARNING - Jump Starting Loader 091033 091033 091033 091033 091033 091033

45 WARNING - Fuel Under Pressure 093486 - - - - -

46 Model Identification 122628 (2) 122629 (2) 122630 (2) 1222292 (2) 122293 (2) 122294 (2)

47 Gehl - On Grille 122290 122290 122290 122290 122290 122290

48 Gehl - On Lift Arm Front 122432 122432 122432 122432 122432 122432

49 Gehl - On Vertical Risers 122288 (2) 122288 (2) 122288 (2) 122288 (2) 122288 (2) 122288 (2)

1 SL3725 - Before SN8117; SL3825 - Before SN13221


SL4625

SL3725 & SL3825

48

29

6

45

46

41

49

4

16

5

13

27

38

42

22

2

2

2

2

7

12

18



1 Red Reflector 067493 (2) 067493 (2) 067493 (2) 067493 (2) 067493 (2) 067493 (2)


3 Emergency Exit - - 129133 - 129133 129133

4 Hydraulic Oil 072794 072794 072794 072794 072794 072794



7 Choke Symbol 072795 - - - - -

8 Diesel Fuel - 072797 072797 072797 072797 072797

9 Coolant Mixture 056859 056859 056859 - - 056859


11 Glow Plug - 088791 088791 088791 088791 088791

12 Hydraloc™ 130297 130297 130297 130297 130297 130297

13 Made in USA 094951 094951 094951 094951 094951 094951


15 Service 129267 129267 129267 129267 129267 129267



18 Brake Switch1 123783 123783 123783 123783 123783 123783

19 Turtle-Rabbit 073075 073075 073075 073075 073075 073075














33 IMPORTANT - Ether 114316 114316 114316 114316 114316 114316














47 Gehl - On Grille 122290 122290 122290 122290 122290 122290





SL3725 & SL3825

SL4625

36

31

39

11

40

43

43

40

11

39

31

3617

44 14 32

158

1 147

3

33

910

30



1 Red Reflector 067493 (2) 067493 (2) 067493 (2) 067493 (2) 067493 (2) 067493 (2)


3 Emergency Exit - - 129133 - 129133 129133

4 Hydraulic Oil 072794 072794 072794 072794 072794 072794



7 Choke Symbol 072795 - - - - -

8 Diesel Fuel - 072797 072797 072797 072797 072797

9 Coolant Mixture 056859 056859 056859 - - 056859


11 Glow Plug - 088791 088791 088791 088791 088791

12 Hydraloc™ 130297 130297 130297 130297 130297 130297

13 Made in USA 094951 094951 094951 094951 094951 094951


15 Service 129267 129267 129267 129267 129267 129267



18 Brake Switch1 123783 123783 123783 123783 123783 123783

19 Turtle-Rabbit 073075 073075 073075 073075 073075 073075














33 IMPORTANT - Ether 114316 114316 114316 114316 114316 114316














47 Gehl - On Grille 122290 122290 122290 122290 122290 122290





SL3725 & 3825 T-Bar Controls SL3725 & SL3825 T-Bar Controls

SL4625 Hand & Foot Controls SL4625 Hand & Foot Controls

SL4625 T-Bar Controls SL4625 T-Bar Controls

28

37

22

19

35

34

25

26

37

28

21

2023

22

21

3534

22

19

3728

22

20

26

34

35

25

CHAPTER 13MAINTENANCE

This Maintenance Interval Chart was developed to match the Service chapter of this manual. Detailed information on

each service procedure may be found in the Service chapter. A maintenance log follows the interval chart for

recording the maintenance procedures performed. Recording the 10 hour (or daily) intervals would be impractical and

is therefore not recommended.

IMPORTANT: Under extreme operating conditions more frequent service than the recommended intervals

may be required. You must decide if your actual operation requires more frequent service based on your

use.

Maintenance Interval Chart


Service Procedure Every 10

Hours

(or Daily)

Every 100

Hours

Every 200

Hours

Every 500

Hours

(or Yearly)

Check Engine Air Cleaner System �

Check Engine Cooling System �

Check Fuel Filter-Water Trap (Diesel Engines only) �

Check Engine Oil Level �

Check Hydraulic Oil Level �

Check Tire Pressures �

Lubricate all Lift Arm and Cylinder Pivots �

Check Seat & Restraint Bar Operation �

Clean Radiator and Oil Cooler Fins �

Check Planetary Gearcase Oil Level �

Replace Engine Oil and Filter �

Lubricate T-Bar Pivots �

Retorque Wheel Nuts �

Check Drive Chain Tension �

Check Chaincase Oil Level �

Clean Spark Arrestor Muffler �

Check all Belt Tensions �

Check Battery �

Replace Hydraulic Filter Element (Non SX/DX Models) �

Check Radiator Hoses and Clamps �

Check Governor Oil Level (Gasoline Engines only) �

Grease Fitting on Governor (Gasoline Engines only) �

Grease Axle Hubs �

Retorque Engine Mounts �

Replace Fuel Filter �

Change Hydraulic Oil and Clean Strainer �

Flush Radiator and Replace Antifreeze �

Change Chaincase Oil �

NOTE: Continue to repeat the Service Procedures at every specified time interval.

MAINTENANCE LOG


Date Hours Service Procedure

MAINTENANCE LOG



INDEXA

Accelerator Pedal . . . . . . . . . . . . . . . . . . . . . . . . 21

Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . 43

ADJUSTMENTS . . . . . . . . . . . . . . . . . . . . . . . . . 42

Air Cleaner System. . . . . . . . . . . . . . . . . . . . . . . 66

Dual Element Style . . . . . . . . . . . . . . . . . . . . . 66

Single Element Style . . . . . . . . . . . . . . . . . . . . 66

All-Tach™ Attachment Mounting . . . . . . . . . . . . 30

Changing Attachments . . . . . . . . . . . . . . . . . . 37

ATTACHMENTS & ACCESSORIES. . . . . . . . . . 50

SL3725 & SL3825 Accessories. . . . . . . . . . . . 51

SL3725 & SL3825 Attachments . . . . . . . . . . . 50

SL4625 Accessories . . . . . . . . . . . . . . . . . . . . 53

SL4625 Attachments. . . . . . . . . . . . . . . . . . . . 52

Auxiliary Hydraulics. . . . . . . . . . . . . . . . . . . . . . . 32

High Flow Auxiliary Hydraulics . . . . . . . . . . . . 32

Standard Flow Auxiliary Hydraulics. . . . . . . . . 32

BBattery . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Handling the Battery Safely. . . . . . . . . . . . . . . 71

Battery Disconnect Switch . . . . . . . . . . . . . . . . . 26

CChaincase . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

SL3725 & SL3825 . . . . . . . . . . . . . . . . . . . . . 74

SL4625 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

CHECKLISTS . . . . . . . . . . . . . . . . . . . . . . . . . 9,11

Choke . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Cold Starting Procedure . . . . . . . . . . . . . . . . . . . 34

Control Panel . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

CONTROLS & SAFETY EQUIPMENT . . . . . . . . 21

DDealer Services. . . . . . . . . . . . . . . . . . . . . . . . . . 64

Cylinders . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Electrical Components . . . . . . . . . . . . . . . . . . 64

Hydraulic System Pump . . . . . . . . . . . . . . . . . 64

Hydrostatic Components. . . . . . . . . . . . . . . . . 64

Valves . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

DECAL LOCATIONS . . . . . . . . . . . . . . . . . . . . . 91

New Decal Application . . . . . . . . . . . . . . . . . . 91

Paint Finish . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

Drive Chains . . . . . . . . . . . . . . . . . . . . . . . . . . . . 43

SL3725/SL3825 Adjustment . . . . . . . . . . . . . . 44

SL4625 Adjustment. . . . . . . . . . . . . . . . . . . . . 45

EElectric Auxiliary Controls Adjustment . . . . . . . . 46

Emergency Exit. . . . . . . . . . . . . . . . . . . . . . . . . . 27

Engine

Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Engine Oil & Filter . . . . . . . . . . . . . . . . . . . 65,70

FFirst Time Operation . . . . . . . . . . . . . . . . . . . . . . 35

Fuel Filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

GGreasing . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Guards & Shields . . . . . . . . . . . . . . . . . . . . . . . . 21

HHand & Foot Controls . . . . . . . . . . . . . . . . . . . . . 24

Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Drive Control Handles . . . . . . . . . . . . . . . . . . . 24

Lift/Tilt Foot Pedals . . . . . . . . . . . . . . . . . . . . . 24

Highway Travel . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Hydraulic Oil & Filter . . . . . . . . . . . . . . . . . 65,72,73

IInstrument Panel. . . . . . . . . . . . . . . . . . . . . . . . . 28

Interlock System . . . . . . . . . . . . . inside front cover

International Symbols . . . . . . . . . . . . . . . . . . . . . . 1

INTRODUCTION . . . . . . . . . . . . . . . . . . . . . . . . . 2

JJump-Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

LLift Arm Support Device . . . . . . . . . . . . . . . . . . . 30

Disengagement . . . . . . . . . . . . . . . . . . . . . . . . 31

Engagement . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Lifting Locations . . . . . . . . . . . . . . . . . . . . . . . . . 41


Loader Identification . . . . . . . . . . . . . . . . . . . . . . . 3

Loader Lowering Procedure . . . . . . . . . . . . . . . . 42

Loader Movement . . . . . . . . . . . . . . . . . . . . . . . . 34

Loader Operations . . . . . . . . . . . . . . . . . . . . . . . 39

Digging with and Loading a Bucket. . . . . . . . . 39

Dumping the Load Into a Box . . . . . . . . . . . . . 40

Dumping the Load Onto a Pile . . . . . . . . . . . . 39

Leveling with a Bucket . . . . . . . . . . . . . . . . . . 41

Scraping with a Bucket . . . . . . . . . . . . . . . . . . 40

Loader Raising Procedure . . . . . . . . . . . . . . . . . 42

LUBRICATION . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Lubricants . . . . . . . . . . . . . . . . . . . . . . . . . . . . 47

Lubrication Chart . . . . . . . . . . . . . . . . . . . . 47,49

Lubrication Locations . . . . . . . . . . . . . . . . . . . 48

MMAINTENANCE . . . . . . . . . . . . . . . . . . . . . . . . . 98

Maintenance Interval Chart . . . . . . . . . . . . . . . 98

Maintenance Log. . . . . . . . . . . . . . . . 99,100,101

MANDATORY SAFETY SHUTDOWNPROCEDURE. . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Material Densities . . . . . . . . . . . . . . . . . . . . . . . . 38

Table of Common Materials and Densities . . . 38

MODEL SPECIFICATIONS . . . . . . . . . . . . . . . . . 4

General Specifications . . . . . . . . . . . . . . . . . . . 7

SL3725 & SL3825 . . . . . . . . . . . . . . . . . . . . . . 4

SL4625 . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

Standard Features . . . . . . . . . . . . . . . . . . . . . . 6

Muffler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 70

OOil Cooler . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

OPERATION. . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Operator Services. . . . . . . . . . . . . . . . . . . . . . . . 65

Every 10 Hours or Daily . . . . . . . . . . . . . . . . . 65

Every 100 Hours . . . . . . . . . . . . . . . . . . . . . . . 70

Every 200 Hours . . . . . . . . . . . . . . . . . . . . . . . 72

Every 500 Hours or Yearly . . . . . . . . . . . . . . . 73

PParking Brake . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

QQuick-Tach™ Attachment Mounting . . . . . . . . . . 30

Changing Attachments . . . . . . . . . . . . . . . . . . 36

R

Radiator Coolant . . . . . . . . . . . . . . . . . . . . . . 67,73

Replacement Parts . . . . . . . . . . . . . . . . . . . . . . . 64

Restraint Bar . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

ROPS/FOPS

Lock Mechanism . . . . . . . . . . . . . . . . . . . . . . . 27

SSAFETY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Additional Safety Reminders. . . . . . . . . . . . . . 13

Schematics

SL3725 & SL3825 Hydrostatic/Hydraulic . . . . 75

SL3725 Wiring . . . . . . . . . . . . . . . . . . . . . . 80,82

SL3825 Wiring . . . . . . . . . . . . . . . . . . . . . . 84,86

SL3825SX Hydrostatic/Hydraulic . . . . . . . . . . 76

SL4625 Hydrostatic/Hydraulic. . . . . . . . . . . . . 77

SL4625 Wiring. . . . . . . . . . . . . . . . . . . . . . . . . 88

SL4625DX Hydrostatic/Hydraulic . . . . . . . . . . 79

SL4625SX Hydrostatic/Hydraulic . . . . . . . . . . 78

Seat Positioning . . . . . . . . . . . . . . . . . . . . . . . . . 26

Self-Leveling . . . . . . . . . . . . . . . . . . . . . . . . . . . . 37

SERVICE . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 64

Starting the Loader . . . . . . . . . . . . . . . . . . . . . . . 33

Stopping the Loader . . . . . . . . . . . . . . . . . . . . . . 34

Storage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

TT-Bar Controls. . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Drive Control T-Bar . . . . . . . . . . . . . . . . . . . . . 22

Lift/Tilt Control T-Bar . . . . . . . . . . . . . . . . . . . . 22

Throttle Lever . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . 43

Tie-Down Locations . . . . . . . . . . . . . . . . . . . . . . 41

Tire Pressures. . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Torque Specifications . . . . . . . . . . . . . . . . . . . . 104

TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . 54

Electrical System . . . . . . . . . . . . . . . . . . . . 54,55

Engine . . . . . . . . . . . . . . . . . . . . . . . . . . . . 56,57

Hydraulic System . . . . . . . . . . . . . . . . . . . . 61,62

Hydrostatic System . . . . . . . . . . . . . . . . 58,59,60

WWarranty . . . . . . . . . . . . . . . . . . . inside back cover

Water Trap . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 68

Window, Rear . . . . . . . . . . . . . . . . . . . . . . . . . . . 27


TORQUE SPECIFICATIONSUse these torque values when tightening Gehl hardware (excluding: locknuts, and self-tapping,thread forming, and sheet metal screws) unless otherwise specified.


METRIC

COARSE

THREAD

GRADE 8.8 GRADE 10.9 GRADE 12.9

DRY LUBED DRY LUBED DRY LUBED

M6-1M8-1.25M10-1.5

8

19

37.5

6

14

28

11

27

53

8

20

39

13.5

32.5

64

10

24

47

M12-1.75M14-2M16-2

65

103.5

158.5

48

76.5

117.5

91.5

145.5

223.5

67.5

108

165.5

111.5

176.5

271

82

131

200

*All Torque Values are in ft-lbs except those marked with an * which are in in-lbs.

For metric torque value (N·m) multiply ft-lbs value by 1.355 or the in-lbs value by 0.113.

UNIFIED

NATIONAL

THREAD

GRADE 2 GRADE 5 GRADE 8

DRY LUBED DRY LUBED DRY LUBED

8-328-3610-2410-32

19*

20*

27*

31*

14*

15*

21*

23*

30*

31*

43*

49*

22*

23*

32*

36*

41*

43*

60*

68*

31*

32*

45*

51*

1/4-201/4-285/16-185/16-24

66*

76*

11

12

50*

56*

9

9

9

10

17

19

75*

86*

13

14

12

14

25

25

9

10

18

20

3/8-163/8-247/16-147/16-20

20

23

32

36

15

17

24

27

30

35

35

40

23

25

35

40

45

50

70

80

35

35

55

60

1/2-131/2-209/16-129/16-18

50

55

70

80

35

40

55

60

75

90

110

120

55

65

80

90

110

120

150

170

80

90

110

130

5/8-115/8-183/4-103/4-16

100

110

175

200

75

85

130

150

150

180

260

300

110

130

200

220

220

240

380

420

170

180

280

320

7/8-97/8-141-81-12

170

180

250

270

125

140

190

210

430

470

640

710

320

360

480

530

600

660

900

1000

460

500

680

740

GEHL CONSTRUCTION

WARRANTY

GEHL CONSTRUCTION DIVISION of the GEHL COMPANY, hereinafter referred to as Gehl,warrants new Gehl construction equipment to the Original Retail Purchaser to be free from defectsin material and workmanship for a period of twelve (12) months from the Warranty Start Date,except as set forth below.

GEHL CONSTRUCTION WARRANTY SERVICE INCLUDES:

Genuine Gehl parts and labor costs required to repair or replace equipment at the selling dealer’sbusiness location.

GEHL MAKES NO REPRESENTATIONS OR WARRANTIES OF ANYK I N D , E X P R E S S O R I M P L I E D ( I N C L U D I N G T H E I M P L I E DW A R R A N T I E S O F M E R C H A N T A B I L I T Y A N D F I T N E S S F O RPARTICULAR PURPOSE), EXCEPT AS EXPRESSLY STATED INTHIS WARRANTY STATEMENT.

GEHL WARRANTY SERVICE DOES NOT INCLUDE:

1. Transportation to selling dealer’s business location or, at the option of the Original Retail

Purchaser, the cost of a service call.

2. Used equipment.

3. Components covered by their own non-Gehl warranties, such as tires, trade accessories and

engines.

4. Normal maintenance service and expendable, high-wear items.

5. Repairs or adjustments caused by: improper use; failure to follow recommended maintenance

procedures; use of unauthorized attachments; accident or other casualty.

6. Liability for incidental or consequential damages of any type, including, but not limited to lost

profits or expenses of acquiring replacement equipment.

No agent, employee or representative of Gehl has any authority to bind Gehl to any warrantyexcept as specifically set forth herein. Any of these limitations excluded by local law shall bedeemed deleted from this warranty; all other terms will continue to apply.

Gehl Company 143 Water Street, P.O. Box 179, West Bend, WI 53095-0179 U.S.A.

907777/CP0899 © 1999 GEHL COMPANY PRINTED IN USA

All Rights Reserved.

CALIFORNIA

Proposition 65 Warning

Diesel engine exhaust and some of its constituents are

known to the State of California to cause cancer, birth

defects, and other reproductive harm.

®

sl3725 - tuff equipmenttuffequipco.com/pdfs/gehl owners manuals/gehl skid loaders/sl3725...sl3725...

Documents