international harvester 490 disc harrow operators manual
TRANSCRIPT
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Operator’s Manual
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.
490 Tandem Disk Harrow
IH-O-490 DISC
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, INTERNATIONAL® 490
TANDEM DISK HARROW
SETTING UP INSTRUCTIONS
OPERATOR'S MANUAL'.
®
To The Owner Your new International Harvester disk harrow is designed to meet today's exacting operating requirements. The ease of operation and ability to adjust to field conditions lighten your work and shorten your hours on the job.
You are urged to consult your International Harvester dealer concerning unusual field conditions or special applications. Let the experience of your dealer and the organization associated with him serve you.
Be sure to read the instructions for Adjusting and Operating in this manual. Check each item referred to and acquaint yourself with the adjustments
required to obtain efficient operation and maximum trouble-free performance. Remember, an implement which is properly lubricated and adjusted saves time, labor, and fuel.
After the operating season, thoroughly clean your disk harrow and inspect it. Preventive maintenance pays dividends. Your dealer has original-equipment parts which assure proper fit and best performance. He is able to recondition your equipment to a like new condition.
Additional copies of this manual may be ordered from your I nternational Harvester dealer at a nom inal price.
CONTENTS Page Page
WORK SAFELY - FOLLOW THESE SETTING UP 8 to 28 RULES 1, 2
INTRODUCTION 3 Harrow Features 3 OPTIONAL EQUIPMENT 27,28
Furrow Filler and Furrow ADJUSTING AND OPERATING 4 to 7 Filler Scraper 27
Frame and Arbor Bolts 4 Heavy-Duty Scrapers 27 Disk Blades and Scrapers 4 Arbor Bolt Tool Package 27
Drawbar Extension Plate 4 Dual Wheels 27 Lowering the Harrow 4 Hitch Coupling 27
Diverter Valve 4 Hitch Saff:ty Chain 28 Hitch Adjustments 5 Depth Control 6 Transporting 6 LUBRICATION 29 Wing Leveling 7 Wheel Settings 7 Transport Wheels 7
INTRODUCTION
HARROW FEATURES
Heavy-duty clevis, has large bearing area to reduce wobble and wear and assure true trailing of the harrow.
Tongue-type hitch coupling is optional.
Spring-cushioned self-leveling hitch protects the disk blades and the entire harrow by reducing shock loads. The self-leveling feature assures uniform penetration. Once the harrow is set level it remains level throughout the entire left range from transport position to full working depth.
Hitch crank enables the operator to level the harrow, vary the working depth between the front and rear gangs, and change the hitch point height for connecting to the tractor, thus eliminating the need for a jack stand.
Frame, built of welded heavy-steel tubes, maintains constant down pressure on the gangs when disking.
Hydraulic Control, allows the operator to fold or unfold the wings, raise or lower the harrow, and set the gangs to a precise depth for working.
Unit-built gangs, have big 1-1/8 inch spring steel arbor bolts and heavy ribbed standards.
Large flange extra heavy duty spacing and bearing spools, have machined ends.
Disk blades are heavy gauge steel with a crimp center to reduce blade breakage. The blade edges retain their sharp edges longer, resulting in a better disking job.
Gang bearings are regreasable cartridge-type triplesealed, self-aligning ball bearings.
Bearing standards are offset for additional trash clearance and blade protection and offer a dropout bearing design to let the operator remove an entire gang in minutes.
3
Scrapers are individually adjustable full-blade type. They are designed to keep the disk gang free from plugging as well as the blade surface clean. Heavyduty scrapers are optional.
Center tooth is used to eliminate the bulk left between the front gangs.
Transport wheels, carry the harrow for transporting and act as gauge wheels for precise depth control. Dual wheels for wings are optional on harrow sizes 27' 8", 28' 1",31' 8", and 32' .
Transport locks, consist of a gauging strap to secure the disk gangs in a raised position, and a wing lock to secure the wings in a folded position for safe harow transport. The gauging strap has a series of holes for depth control.
Hydraulic equipment required for folding and unfolding the wings consists of hydraulic cylinders, hoses, connections, and lock straps and is furnished with the harrow.
Completing package consisting of a hydraulic cylinder, hoses, and connections is required for tractors with two hydraulic valves.
Completing package consisting of a hydraulic cy linder, diverter valve, hoses, connections, brackets, and rope is required for tractors with single hydraulic valves.
NOTE: When replacing hydraulic components, be sure to obtain the identical part numbers, particularly the wing cylinder hydraulic hoses (% inch 1.0.).
Refer to "Optional Equipment" for optional equipment features.
The terms "Ieft" and "right" when used in this manual should be understood to mean from a position behind and facing the machine.
ADJUSTING AND OPERATING
HITCH ADJUSTMENTS
Tongue-type hitch coupling shown is optional.
For proper performance, hitch screw" A" should be adjusted so that the harrow frame is level in operation. NOTE: raise the harrow to transport position to facilitate adjustment.
The hitch spring length should be 35 inches approximately. Check periodically, and adjust jam nut to maintain this length, as necessary.
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The lower set of holes "c" in the hitch plates should be used for the initial setup. The upper set of holes may be used, if necessary, when the harrow is connected to tractors having a high drawbar and the disk blades worn to a smaller diameter.
Before detaching the harrow from the tractor, relieve the hitch spring tension by means of the hitch screw. Detach the hydraulic hoses from the tractor and place them in the hose support.
SETTING UP
Remove all wires. Sort out all hardware by sizes and types in a convenient and orderly manner.
Whenever the terms "Ieft" and "right" are used, it should be understood to mean from a position behind and facing the machine.
Bolts must be used in the holes in which they are found, or in the parts to which they are attached unless otherwise shown.
Leave all bolts loose until the machine is completely assembled. Then tighten them securely.
Lubricate all moving parts as you proceed, and see that they work freely.
Type 5 Type 8 A-88880A
Bolts furnished with the machine are identified by radial lines on the head. Bolts without radial lines are type 1.
The illustrations on pages 8 to 26 inclusive show the sequence of steps to properly set up your disk harrow.
STEP 1. WHEEL AXLE, MAIN FRAME, AND REFLECTIVE TAPES
8
R;d ", ~efl~di:;; 't~p; " "), (outer end of left (2nd ';, right rear gang bars)' .. !
Attach each w heel to • the hub as shown.
Tighten wheel hub bolts '. to 80 to 90 foot-pounds
torque.
SETTING UP
STEP 5. DISK GANGS
ARBOR BOLT LENGTHS AND NUMBER OF DISK BLADES FOR EACH SIZE HARROW
FRONT GANGS REAR GANGS
Disk Number of Arbor Bolt Number of Arbor Bolt Harrow Size Spacing Disk Blades Length (i nches) Disk Blades Length (inches)
(inches) Main Wing Main
21 ft. 7-1/2 10 7 71-7/8 ),Qft.,6 in. 9 +_ . .9. 5 76-3/8
, 24 ft., 7 in ..... ') Ct=,ltL,,_, ,JO_, , . ...Jii-=::. 71-7/8 24-ft'1om. 9 9 8 76-3/8 28 ft., 1 in. 7-1/2 10 13 71-7/8 27 ft., 8 in. 9 9 10 76-3/8 31 ft.,8 in. 7-1/2 10 16 71-7/8 32 ft. 9 9 13 76-3/8
The end of the spools must be checked and any foreign matter, as well as excessive amounts of paint, removed before they are placed on the arbor bolt.
Check the arbor bolts for specified torque frequently during the first few weeks of operation and periodically thereafter. Retighten as necessary.
Four extra 1-3/4 inch square x 5/16 inch thick square hole spacers are furnished with your harrow to assure that all gangs can be properly torqued, regardless of disk blade thickness and spool tolerances.
If arbor bolt threads extend more than one-inch through the nut, the regular 1/8 inch thick nut strip should be replaced with the 5/16-inch thick spacer.
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Wing Main Wing Main Wing
48-3/4 10 7 71-7/8 48-3/4 39-7/8 8 6 67-3/8 48-7/8 71-7/8 10 '0 71-7/8 71-7/8 67-3/8 8 9 67-3/8 76-3/8 94-3/8 10 13 71-7/8 94-3/8 85-3/8 8 11 67-3/8 94-3/8
116-7/8 10 16 71-7/8 116-7/8 112-3/8 8 14 67-3/8 121-3/8
l-inch maximum
If necessary, both parts may be used. However, they should be welded together and the nut strip must be placed next to the lock washer.