i inntteerrnnaattiioonnaall hhaarrvveesstteerr service manual...hydraulics valve flow: n/a...

IH-S-656CHASIS

IInntteerr nnaattiioonnaallHHaarr vveesstteerr

Service Manual656, 664, 666, 686,

70 & HydroChassis Only

THIS IS A MANUAL PRODUCED BY JENSALES INC. WITHOUT THE AUTHORIZATION OF INTERNATIONAL HARVESTER OR IT’S SUCCESSORS. INTERNATIONAL HARVESTER AND IT’S SUCCESSORS

ARE NOT RESPONSIBLE FOR THE QUALITY OR ACCURACY OF THIS MANUAL.

TRADE MARKS AND TRADE NAMES CONTAINED AND USED HEREIN ARE THOSE OF OTHERS, AND ARE USED HERE IN A DESCRIPTIVE SENSE TO REFER TO THE PRODUCTS OF OTHERS.

Serv

ice

Man

ual

http://www.jensales.com/products/farmall-tractor-service-manual-ih-s-656chasis.html

Make: International

Model: 70 HYDRO

Years Made: 1973-1976

Make: International

Model: 86 HYDRO

Years Made: 1976-1980

Make: International Harvester

Model: 656 Years Made: n/a Engine type: International Harvester C263

Cylinders: 6

Displacement: 263 ci [4.3 L]

HP-PTO: 69.61

HP-Engine:

HP-Drawbar: 54.6

HP-PTO: 69.51

HP-Engine:

HP-Drawbar: 53.4 Factory: n/a Chassis:

4x2 2WD Wheelbase: 96.3 inches [244 cm]

Bore/Stroke: 3.5625x4.3906 inches [90 x 112 mm]

Compression: 8.8:1

RPM: 1800 (early)

HP-Range: 70

Engine-Make: IHC

Engine-Fuel: GAS HP-Range: 70 Engine-

Make: IHCEngine-Fuel: DIESEL

Front tire: 7.50-16

Rear tire: 15.5-38

Weight: 6,641 lbs [3012 kg]

Gross Power: n/a

Torque: n/a

Torque RPM: n/a

Engine-Cyl(s)-CID: 6/290.8

Transmission-STD: HYDRO

Optional: Engine-Cyl(s)-CID: 6/312

Transmission-STD: HYDRO

Optional: Length: n/a Width: n/a Height: n/a Net Power: n/a PTO: n/a Drawbar: n/a

Fwd/Rev Standard: VARIABLE

Fwd/Rev Optional: Mfwd-Std/Opt:

Fwd/Rev Standard: VARIABLE

Fwd/Rev Optional: Mfwd-Std/Opt:

Elec. Grounding: n/a

Elec. Charging Amps: n/a

Elec. Volts: n/a Rear PTO: independent

Rear RPM: 540/1000

Clutch: n/a

Tires-Std Front: 7.50-16

Tires-Std Rear: 15.5-38

Wheelbase-Inch:

Tires-Std Front: 7.50-16

Tires-Std Rear: 15.5-38

Wheelbase-Inch:

Hitch Rear Type: 2/1

Hitch Rear Lift: n/a

Fuel Capacity: 33 gal [124.9 L] Cooling: liquid

Coolant: 20.5 qts [19.4 L]

Air Cleaner Type: dry

Pto Type: IND

Pto Speed: 540

CAT I-3pt Hitch: False Pto Type: IND

Pto Speed: 540

CAT I-3pt Hitch: False

Hydraulics Type: open

Hydraulics Capacity: n/a

Hydraulics Pressure: n/a

Oil Capacity: 9 qts [8.5 L]

Oil Change: n/a

Fuel: gasoline

CAT II-3pt Hitch: True

CAT III-3pt Hitch: False

Hitch Lift: CAT II-3pt Hitch: True

CAT III-3pt Hitch: False

Hitch Lift: Hydraulics Valves: n/a

Hydraulics Total Flow: n/a

Hydraulics Valve Flow: n/a

Transmission Type: n/a

Gears: 5 forward and 1 reverse

Hydraulics-Type: Hyd-Cap: Hyd-Flow: 12 Hydraulics-

Type: Hyd-Cap: Hyd-Flow: 12 Steering: n/a

Brakes: n/a

New Price: $7,400 (1973)

Hyd Std Outlets:

Cooling Capacity:

Fuel Tank Capacity:

Hyd Std Outlets: 1

Cooling Capacity:

Fuel Tank Capacity:

Cab-Stdm A/C; Rops:

Weight: 7329

New Price: 14160

Cab-Stdm A/C; Rops:

Weight: 8012

New Price: 23435


Model: 664 Years Made: 1972 - 1973

Engine type: International Harvester D239

Cylinders: 4



Model: 666 Years Made: n/a Engine type: International Harvester D312

Cylinders: 6


Factory: n/a Chassis: n/a Wheelbase: n/a


Compression: n/a RPM: n/a Factory: n/a Chassis:

2WD Wheelbase: n/a


Compression: n/a RPM: n/a

Front tire: 6.50-16

Rear tire: 14.9-30

Weight: 6,000 lbs [2721 kg]

Gross Power: n/a

Torque: n/a

Torque RPM: n/a

Front tire: 7.50-16

Rear tire: 15.5-38

Weight: 7053 lbs [3199 kg]

Gross Power: n/a

Torque: n/a

Torque RPM: n/a

Length: n/a Width: n/a Height: n/a Net Power: n/a PTO: n/a Drawbar: n/a Length: n/a Width: n/a Height: n/a Net Power: n/a PTO: n/a Drawbar: n/a




Rear RPM: 540 Clutch: n/a




Rear RPM: 540 Clutch: n/a

Hitch Rear Type: II


Fuel Capacity: n/a

Cooling: liquid

Coolant: n/a

Air Cleaner Type: n/a

Hitch Rear Type: II

Hitch Rear Lift: n/a Fuel Capacity: n/a Cooling: liquid Coolant:

n/a Air Cleaner Type: n/a

Hydraulics Type: n/a



Oil Capacity: n/a

Oil Change: n/a

Fuel: diesel Hydraulics Type: n/a


Hydraulics Pressure: n/a Oil Capacity: n/a

Oil Change: n/a

Fuel: diesel

Hydraulics Valves: n/a










Steering: n/a

Brakes: n/a

New Price: $7,500 (1973

Steering: hydrostatic power

Brakes: n/a New Price: $11,875

Clutch housing, right side 656


Model: 686 Years Made: n/a

Engine type: International Harvester D310

Cylinders: 6

Displacement: 310 ci [5.1 L] 70 HYDRO Year Beginning Serial

Number

Factory: n/a Chassis: 4x2 2WD

Wheelbase: 103 inches [261 cm]


Compression: n/a RPM: 2000 Year Beginning Serial

Number 1966 7501

Front tire: 7.50-16

Rear tire: 15.5-38

Weight: 7770 to 10340 pounds

Gross Power: n/a

Torque: n/a

Torque RPM: n/a 1973 7501 1967 7842

Length: 162 inches [411 cm] (with 3-point)

Width: 89.4 inches [227 cm] (min)

Height: n/a Net Power: n/a PTO: n/a Drawbar: n/a 1974 7570 1968 9929




Rear RPM: 540 Clutch: n/a 1975 8681 1969 11802

Hitch Rear Type: 2


Fuel Capacity: 31 gal [117.3 L]

Cooling: liquid

Coolant: 21 qts [19.9 L]

Air Cleaner Type: dry 1970 13353

Hydraulics Type: n/a

Hydraulics Capacity: 16 gal [60.6 L]


Oil Capacity: 12 qts [11.4 L]

Oil Change: n/a

Fuel: diesel

RIGHT OF TRANS

HOUSING 86 HYDRO

1971 14194






Year Beginning Serial Number 1972 14952

Steering: hydrostatic power

Brakes: n/a

New Price: $14,700 (1980) 1976 7501 1973 15746

1977 7608

Clutch housing, right side

666

Clutch housing on right side.

686

1978 8171 Paint Codes

Year Beginning Serial Number Year Beginning Serial

Number 1979 8661BODY OF TRACTOR

ANTIQUE 2150 RED

1972 7500 1976 7500 1980 9114 TRIMANTIQUE WHITE

1973 8200 1977 7729 WHEELS ALUMINUM

1974 11585 1978 9899

1975 13131 1979 114171976 15739 1980 12923


INTERNATIONAL HARVESTER

SERVICE MANUAL

'5' "4,"','8' -70,80

CHASSIS ONLY


General Contents

Safe Work Rules, Standard Torque Data for Nuts and Bolts,

Metric Conversion Tables, Standard Torque Data for

Page

Hydraulic Tubes and Fittings, Special Service Tools Required. . . . . . . . . . . . . . . . . . . . .. IV - XII

Section

W"······'·· .::\<: \

'~'"

GSS-1383-1 (Rev. No.3) III

Printed in United States of America


Section 1

SPliTTING THE TRACTOR

CONTENTS

Page

FRONT SECTION SPLIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 1-1

REAR SECT tON SPLIT . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 1-3

RECOUPLING THE TRACTOR .............................. 1-4

FRONT SECTION SPLIT

1. Disconnect the battery ground cable at the battery.

2. Remove the front side hoods, muffler and hood.

3. Drain the coolant and remove the water temperature sending unit from the engine block.

4. Disconnect necessary electrical wiring at alternator or generator, headlights, oil pressure sending unit and ether start solenoid.

1-1

5. Disconnect the tachometer cable.

6. Disconnect the power steering and oil cooler lines. Tag the oil cooler lines for reassembly. Cap all openings.

7. Disconnect or remove the governor control rod.

8. Shut off fuel and disconnect the fuel lines.

9. Disconnect fuel shut off or choke cable.


Section 2

FRONT END, AXLE AND WHEELS

CONTENTS

TOE-IN CHECK AND ADJUSTMENT

Page

Farmall Models. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... .. 2-2

Hi-Clear Models . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 2-3

International Models. . . . . . . . . . . . . . . . . . . . . . . . • . . . . . . . . • .. 2-4

WHEEL BEARING ADJUSTMENT •••••••••••••••••••••••••••• . 2-5

FRONT STEERING KNUCKLE MODIFICATIONS. • • • • • • • • • • • • • • • • •• 2-5

2-1


TOE-IN CHECK AND ADJUSTMENT

Farmall Models

A. Axle clamp bolt B. Pin C. Tie rod clamp bolt D. Tie rod tube

The front wheels should have l/4-inch (± l/16-inch) toe-in, that is, l/4-inch closer together in the front than in the rear. To check the toe-in, with the tractor on level ground and the wheels in the straight-ahead position, place chalk marks on the rims at points "F" at the same height as the hub caps and measure the distance between them. Move the tractor forward a distance equal to one-half revolution of the front wheels. The chalk marks will now be at points "G". The measurement at points "G" should be l/4-inch (± l/16-inch) greater than at points "F".

2-2

E. Locknuts F. Check point G. Check point

To adjust the toe-in, remove the clamp bolts "e" from the tie rods and loosen the lock nuts sufficiently to allow the tie rod tubes "D" to turn freely. Turn the tie rod tubes one turn at a time to shorten or lengthen as required. Left and right tie rods should be adjusted by equal amounts (not more than one turn difference), so that the steering gear arm will remain centered and not limit left or right turns. Clamp bolts "C" must be installed again to check toe-in. Tighten bolts "C" and tie rod lock nuts when specified toe-in is obtained.


Section 3

STEERING

CONTENTS

Page

GENERAL INFORMATION ................................ 3-2

PRINCIPLES OF OPERATION

JVlanual Stee ring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3-4

Power Steering . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3-7

STEERING HAND PUMP

General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3-8

Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3-11

Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3-12

Inspection and Repair. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3-14

Reassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3-15

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3-17

CONTROL VALVE

Principle of Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3-18

Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3-18

Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3-19

Inspection and Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3-20

Reassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3-21

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3 - 22

3-1


Page

STEERING CYLINDER - EXTERNAL

Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3-22

Inspection and Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3-23

Reassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3-24

STEERING CYLINDER - INTERNAL (Bolster Type)

Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3-25

Disassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3-26

Inspection and Repair. . • . . . • . . . . • . . • . . . . . . . . . • . . . . . . . • .. 3-28

Reassembly. . . . . . . . . . . . . . . . . . . . . . • • . . . . . . . . . . . . . • . . .. 3-29

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 3 -31

FLOW DIVIDER .....•.••........•.....•.....•....•.... 3-32

GENERAL INFORMATION

The hydrostatic power steering system uses an engine driven pump, a manually operated pump, a flow divider, relief valve, pilot control valve and a double acting hydraulic cylinder. The purpose of this section is to explain the functions of each of these parts and how they work together to provide positive steering with or without the engine running.

There is no mechanical linkage between the steering wheel and the front wheels.

3-2

Instead, a closed hydraulic circuit, independent of the engine driven pump, is al ways connected with the steering cylinder.

A manual pump, driven by turning the steering wheel, develops several hundred psi to activate this closed circuit if engine or pump fail. The instant conversion from engine assist to manual pump closed circuit operation, is accomplished by a specially designed control valve.


Section 4

ENGINE

CONTENTS

Page

REMOVAL AND INSTALLATION. . . . . . . . . . . . . . . . . . . . . . . . . . . .. 4-1

NOTE: For specifications and complete overhaul procedures, refer to the following Blue Ribbon Service Manuals:

656 and 666 Gasoline Tractor refer to GSS-1387 656 Diesel Tractor refer to GSS-1036-E 664 Diesel Tractor refer to GSS-1377-H 666 Diesel Tractor refer to GSS-1427-1

Hydro 70 Diesel Tractor refer to GSS-1427-1

REMOVAL AND INSTALLATION

1. Do a front section split as covered in Section 1.

2. Remove the air cleaner assembly.

3. Disconnect the radiator hoses from the engine.

4-1

4. Wide front axle - drive wooden blocks between the lower bolster and axle.

Tricycle front axle - support the tricycle front during engine removal.


5. Support the engine with a hoist and chain using brackets FES 100-3.

6. Remove the left side channel. Unbolt the engine from the right side channel and remove it.

7. Install the engine on a FES 52 engine stand. Refer to the appropriate GSS Service Manual for mounting instructions.

8. Installation of the engine is the reverse of removal.

4-2


SPECIFICATIONS

Section 6

ELECTRICAL SYSTEM

CONTENTS

Page

Ignition Timing • . . . • . . • . • . • . . • . . • . . • • • • • • • • • . • . • • . . . •• 6-2

Generator. . . . . . . . . . . • • . • . . . . . . . . . . . . • . . . . . . . . . . . . . •. 6-2

DC Regulator. . . . . . . . . . . . . . . . . . • . . . . • . • . . . . . . . . . . . . . .. 6-3

Alternator. . . . . . • . . . . • . . . . . . . . . . . . . . . • • . . . . . . . . • . . . .. 6-3

AC Regulator .........•.......... eo. • • • • • • • • • • • • • • • • •• 6-4

Diocle Assembly. • • . • . . . . • . • • • . • . • . • . . . • . . . . . • . . • . . • • •• 6-4

Cra~ing Motor . . . . . . . . . . . . . . . . . . . . . • • . . . . . . . . . . • . . . .. 6-4

Cra~ing Motor Switch • • . • . . . • . . • . . . • • • . . . . • • . . • • • • • . • •• 6-5

Battery. . . . . . . . . . . . . . . . . . . . . . . . . . . • . . . . . . . . . . . . . . . .. 6-5

SAFETY STARTING SWITCH •••• • • • • • • • • • • • • • • • • • • • • • • • • • •• 6-6

WIRING DIAGRAMS .................................... 6-7

Complete Overhaul and Testing information is covered in GSS-1052-C.

6-1


Section 8

CLUTCH, CLUTCH HOUSING AND FLYWHEEL

CONTENTS

SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CLUTCH

Page

8-1

Removal and Installation. . . . . . . . . . . . . . . . . . . . . . . • . . . . . . . .. 8-2

CLUTCH LINKAGE ADJUSTMENT

Tractors without TA . • . . . . . . . . . . . . . . . . . . . . . . . . . . . • . . . . •. 8-3

Tractors with TA. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 8-4

CLUTCH HOUSING

Removal and Disassembly. . . . . . . . . . . . . . • . . . . . . . . . . . . • . . .. 8-6

Reassembly and Installation. . . . . . . . . . . . . . . . . . . . . . • . . . . . . .. 8-8

FLYWHEEL RESURFACING. . . . . . • . . . . . . • . . . • . . . . . . . . • . . . .. 8-10

SPECI FICATIONS

T:y-pe . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. Spring loaded Size .................................................... 1I-inch Driven membe r . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Airc raft friction pad

Springs (52907-D) Number . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9 Free length - inche s. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Test length - inches. . . . . . . . . • . . . . . . . . . . . . . . . . . . . . . . . . . . .. 1-7/16 Test load - Ibs. . .......................•............... 165 Min.

Finger height - inches ......................................... 2.495 *Back plate to pressure plate - inches. . . . . . . . . . . . . . . . . . . . . . . . . .. 1.057

Torque on 5/16 - 18 - 12 point capscrews ......................... 20 ft. Ibs.

*Use spacer and gauge block No. 26 and .030l! feeler gauge to adjust clutch on clutch Service tool FES 50.

8-1


Section 9

TRANSMISSION

CONTENTS

Page

SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 9-3

HYDROSTATIC DRIVE

Hydrostatic Transmission. . . . . • . . . . . . . . . . . . . . . . . . . . . . . . .. 9-6

Range T ransmis sion. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 9-7

STANDARD TRANSMISSION

Power Flow. . . . . . . . . . . . . . . . . . . . . . . . . . . . . • . . . . . . . . . . .. 9-8

Disassembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 9-9

Inspection and Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 9 -12

Reassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 9-13

TORQUE AMPLIFIER

De sc ription and Ope ration . . . . . . . . . . . • . . . . . . . . . . . . . . . . . . .. 9 -17

Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 9-20

Disassembly ....................... ~ . . . . . . . . . . . . . . . .. 9-23

Inspection and Repair. • . . . . . . . . . . . . . . . . . . . . . • . . . . • . . . . .. 9-24

Reassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 9-26

Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 9-29

9-1


Page

FORWARD AND REVERSE DRIVE

Description and Operation ............................... . 9-30

Removal ........................................... . 9-32

Disassembly ........................................ . 9-37

Inspection and Repair . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-40

Reassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-41

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-42

GEAR SHIFT LINKAGE •...•..••.•..••••.•..••...••••••.•. 9-44

Disas sembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-45

Inspection and Repair .................................. . 9-45

Reassembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9-45

Adjustment . . . . . . . . . . . . . . . . . • . . ..................... . 9-46

9-2


Section 10

DIFFERENTIAL

CONTENTS

Page

SPECI FICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 10-2

DI FFERENTIAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 10-3

Removal and Disassembly. . . . . . . . . . . . . . . . . . . . . . • . . . . . . • .. 10-4

Inspection and Repair . . . . . . . . . . . . . . . . . . . . . . . . . • . . . . . . . .. 10-7

Reassembly and Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 10-7

10-1


Section 11

REAR AXLE AND HOUSING

CONTENTS

REAR AXLE HOUSING

Page

Removal and Disassembly. . . • . . . . . . . . . . . . . . . . . . . . . . . • . . .. 11-2

Reassembly and Installation. . . . . • . . . . . . . • . . . . . . . . . • . . • . . .. 11-2

BULL GEAR

Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 11-3

Installation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 11-3

BULL PINION SHAFT

Removal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 11-3

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 11-4

11-1


Section 12

BRAKES

CONTENTS

Page

SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . • . . . . . . . .. 12-1

GENERAL. . . . . . . . . . . . . . . . • . . . . . . . . . . . . . . . . . . . . . . . . .. 12-2

DISASSEMBLY. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 12-2

INSPECTION .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 1'2-2

REASSEMBLY 12-2

ADJUSTMENT 12-2

SPECI FICATIONS

Type . . . . . . . . . . • . . • . . . . . . . . . . . . . . . . . . . . . . .. Spring loaded, double disc

Size - inch . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1/2

Mounting ...... . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. On bull pinion shaft

Pedal free travel - inches . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Farmall 2-1/2 International 1-3/4

12-1


NOTE: The operating rod ball should only be used to equalize pressure, if necessary, after removing a shim or in case of uneven lining wear.

Broke Shims housing

2-1/2 ~inch free movement by hand at front of platform

\

FEA-7585!

Brake pedal adjustment (Farmall).

~h 1-3/4-inches free movement \. by hand at front of platform ~

o ""'-)d

o o

. __ --==-0 LA / ~ - .-rc=::-.-" / f

_/ A--'---------rr ~~--FESM-I891

Brake pedal adjustment (I nternational Models).

12-3

When the pedal free travel reaches approximately 4-1/2 inches (Farmall Models) 3-3/4 inches (International Models), adjust the brakes as follows:

1. Remove the four capscrews and cover from one of the brake housing covers. Remove one .030 inch shim from between the cover and brake housing and replace the cover.

NOTE: On early Farmall Models some .060" shims were used. These should be replaced by .030" shims to allow for more accurate adjustment.

2. Use the same procedure on the opposite brake unit. Then adjust the operating rod ball to equalize brakes as follows:

a. Loosen jam nut "A" back-off the brake operating rod ball "B" so as to allow the internal springs to centralize the actuating brake discs. Depress the pedal two or three times to make certain that discs have centered with respect to the balls. Now turn adjusting ball "B" in with fingers until it is snug against cone of pedal. Repeat this adjustment on the opposite brake. Now check for free movement of pedals which should be between 2-1/2 inches and 4-1/2 inches for Farmall Models, or between 1-3/4 inches and 3-3/4 inches for International Models.

b. If one pedal freely depresses more than the other, but less than 4-1/2 inches on Farmall Models or 3-3/4 inches on International Models adjusting ball "B" can be turned in until the free movements are equal. If the free movement of one or both pedals is in excess of 4-1/2 inches on Farmall Models or 3-3/4 inches on International Models it will be necessary to remove another shim and repeat the ball adjustment as covered above.


Section 13

INDEPENDENT POWER TAKE-OFF

CONTENTS

Page

SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . • . . . . . . . . . . . . . . . .• 13-1

GENERAL ......................... ~ . . . . . . . . . . . . . . . .. 13-2

REMOVAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 13-3

DISASSEMB L Y . . . . . . . . . . . . . . . • . . . . . • . • . . . . . . . . . . . . . . .. 13-4

INSPECTION ............ • . . . • . . . . . . . . . . . . . . • . . . . . . . .. 13-6

REASSEMBLY . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . • . . . • .. 13-7

INSTALLATION ................. " . . . . . . . . . . . . . . . . . . . .. 13-9

ADJUSTING THE IPTO OPERATING PRESSURE .•. . . . . . . . . . . . . . . .. 13-9

SPECI FICATIONS

Type . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Independent Driven from . . . . . . . . . . . . . . . . . . . . . . . • . . . . . . Splined hub on clutch back plate Lubrication, driving gears and shafts ...................... From transmission Rear unit (type) . . . . . • . . . . . . . . • . . . . • • . . • . . . . . . .. Multiple disc, wet clutch Control. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Hydraulic Lubrication, rear unit ....•..•...•....•..•........•... From transmission

13-1


Section 14

HYDRAULIC SYSTEM

CONTENTS

Page

SPECIFICATIONS . . . . . . . • . . . . . . . . . . . . . . . . . . . . . . . . • . . . .. 14-3

GENERAL INFORMATION

Power Steering Pump . Hitch Pump .•.•••..

(

LOAD AND POSITION CONTROL HITCH

General Information

How It Works •.••• Neutral Circuit Raising Circuit Lowering Circuit Load Sensing - Raise Load Sensing - Lower •• Action Control Valve Operation •• Quadrant Handle Positions. Position Control Linkage .• Load Control Linkage .

Removal and Disassembly .•. Inspection and Repair . • • . • . Reassembly and Installation •• Lever Friction Adjustment ••• Drop Poppet Adjustment • Position and Load Control Linkage Adjustment

TORSION BAR ASSEMBLY

Removal .............. . Installation • • • • • • . . • . • • . Torsion Bar Stop Adjustment •••

14-1

14-5 14-6

14-6

14-7 14-7 14-7 14-8 14-8 14-9 14-9 14-9 14-9

14-10

14-10 14-18 14-20 14-28 14-29 14-30

14-32 14-34 14-35


AUXILIARY VALVES

Disassembly • . . • . • Inspection and Repair •• Reassembly. • • • • . • .• Adjusting the Unlatching Pressure.

DOUBLE ACTI NG CH ECK VALVE

How It Works •.••.•.••.•.. Disassembly, Inspection and Reassembly.

HYDRAULIC COUPLER ..•

Removal and Disassembly •. Reassembly and Installation. •

14-2

Page

14-35 14-38 14-38 14-40

14-41 14-42

14-43

14-44 14-46


Section 15

TESTING HYDRAULIC SYSTEM

CONTENTS

Page

PUMP FLOW SPECIFICATIONS. . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 15-2

GENERAL. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 15-4

HITCH

System Check . . . . . • . . . . . . . . . • . . . . . . . . . . • . . . . . . . . . . . .. 15-8

T rouble Shooting Chart . . . . . . . . . . . • . . . . . . . . . . . . . . . . . . . . .. 15-9

POWER STEERING

System Check . . . . . . . . . . . . . . . . . . . . . . . . . . • . . . . . . . . . . . . . 15-13

T rouble Shooting Chart . . . . . . • . . • . . • • . . . . . . . • . . . . . . . . . . . . 15-17

AUXI L1ARY VALVES

System Check . . . . . . • . . . . . . . . . . . . • . • . . . • . . . . • . . • . . . . • . 15..,19

Trouble Shooting Chart. . . • . . • . . . . . . . • . . . . . . • . . . • . . . . • • . . 15-20

15-1


i inntteerrnnaattiioonnaall hhaarrvveesstteerr service manual...hydraulics valve flow: n/a...

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