International M | MD | MDV | MV | O6 Service Manual

IInntteerrnnaattiioonnaall HHaarrvveesstteerr Service Manual for FARMALL M & MD Service 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. IH-S-M M & MD Starting Serial Numbers 1939 ...... 501 1940 ...... 7240 1941 ...... 25371 1942 ...... 50988 1943 ...... 60011 1944 ...... 67424 1945 ...... 88085 1946 ...... 105564 1947 ...... 122823 1948 ...... 151708 1949 ...... 180514 1950 ...... 213579 1951 ...... 247518 1952 ...... 290923

Paint Codes Ag Farmall Antique Red (to 1981) IH...... 991012R3 (aerosol) IH ...... 991010R2 (quart) IH...... B90882 (gallon) Silver (for wheel rims) IH ...... b17567 (aerosol) IH...... b17565 (quart) IH ...... b17563 (gallon)

piled and Reproduced From Originals by Jensales Inc. '" -:'--.:.~ ...:-: ' : : ., ...

designed to assist tor Blue Ribbon Servicemen., ghring 10:1:' se:rvicin.g- Inter-naHon.al t.ionsfadjustm.ents and othex data. ueslgne..li' d' . to serve a.s ;,:l;

The mad.lines dE1~clibed in ~his :M:, MD, l\1V, and MDV'; the "'\,j'il-6 a.nd the 0-6, OS~6 a.n.d ODS··S orchard ancl 1D",6 irtdusfrial ''V'fheel t]:rac~h~)r~j; i:ra(;iors;. th~~ ~lr=6 and. tJr:~a6 l~\()~\rer

.tt.L ';;;.

engines are identified by l?armall MD, 'WD-o, etc, head, four-cylinder, ha:v"ing 3J/g-irwh bore and 5.%-inch sh:oke, and are approximately the same horsepower. lUI carh'ureted engines have the same type of fuel and ignition. systems. All Diesel engines have similar fuel injection and starting systems. Clutch, tra.nsmission;" differential and final drive as well as belt pulley and power take-oHuare very similar on. all wheel type iradorsofthis series.

Compiled and Reproduced From Originals by Jensales Inc. INTERNATIONAL HARVESTER MODEL M

When the International Harvester Co. introduced the Farmall in 1924, this all-purpose row crop tractor was destined to revolutionizeagricuIture and hasten the mechanization of farming. The F series ofFarmalls; F-12, F-14, F-20 and F-30, were to be phased out and replaced with a new series ofFarmalis in 1939. The new tractors were designated the A, B, H, and M. International Harvester hired Raymond Loewy as early as 1936 to design the new series of tractors. In appearance the M was sleek, a hood enclosed most of the engine parts such as the gas tank, radiator, front steering, and a grille. The M exemplified the engineering saying that "If it looks right, it is right." This maxim was to be proven true over the production life of the M. The new series were quick to become popular and widely accepted row crop models. To complete the series, a W-4, W-6 and W-9 were offered as standard-tread tractors. The Standard, or Wheatland, were available beginning in 1940 and remained in production until 1953. The Model M was manufactured until 1952 with the Super M and MD (Diesel) until 1954. The Model M was a full-size, 3-plow tractor. It was designed to replace the F-30 as it had many of the specifications in terms of type, size, weight and power. Also comparable was the price. In 1939 the M was sold for $1,070 with rubber tires. A 1939 F-30 sold for $1;100.'Much of the similarity endedatthis point. Afew years later· the F-30 was worth $200 to $300 and the M at least $2,200. The M became one of the best known anci best accepted of the International tractors. More than 279,000 were sold by the end of 1952. The first year, 1939 over 6,000 M's were'built. The popularity of the Model M was noted in 1951 when more than 43,000 were manufactured. It was the Models Hand M that contributed in large measure to keeping Intermitional Harvester as the leading tractor manufacturer. The Model M sales gradually in<;;reased as farmers were enlarging the size of their farms and trading 2-plow tractors for the 3-plow power. The company's reputation of dependability and long life with good maintenance were points not lost to farmers. The cost of the M was only about 20 percent more than the H but with about one-third more power. Another advantage came when the MD was introduced. This diesel model used about one-third less fuel than the gasoline model. Generally diesel fuel was less expensive. The Model M had a four cylinder, "I" head, with 3-1/8 inch by 5-117 inch bore and stroke rated at 1450 RPM. The early models were equipped with magneto ignition. The tractor weighed about 6,770 Ibs. and delivered about 25 in horsepower on the drawbar. The 1939 M had a 247 CID engine. The Super M in 1952 was increased in engine displacement to 264 cm. It delivered 33 drawbar horsepower and with wheel weights recorded 8,9291bs. By 1952 the price ofa new M was about $2,500. The MD sold for $3,200. The Super M was in production for less than two years. From 1952 to 1954 the company sold more than 65,000 units. The Super MTA was the last modification of the M. It offered live hydraulics and live power take-off. During the short production span of one year, it is estimated that about 23,000 units were sold. This model ended production of all M Model Farmalls.

Compiled and Reproduced From Originals by Jensales Inc. INDEX General Specifications...... 2 Brief Descriptions ...... 4 GENERAL Serial Number Identification ...... 9 DESCRIPTIONS CARBURETED ENGINES

Description...... 10 Connecting Rods ...... 15 Cylinder Head .. '" ...... 11 Crankshaft and Bearings...... 16 ENGINE Valves...... ' ... 12 Camshaft and Bearings ...... 18 Pistons and Sleeves...... 13 Timing Gears...... 18

Magneto ...... 19 Spark Plug Cables ...... 21 I- DescriPtion...... 22 Oil Filter ...... 24 .-ENGINE nOil Pump ..... ' ...... 23 Crankcase Brea ther ...... ' ...... 24 LUBRICATION

Carburetor ...... 25 Checking Engine Problems ..... 32 Manifold ...... 34 Carburetor Service ...... 28 Air Cleaner...... 33 Governor ...... 34 FUEL SYSTEM

DIESEL ENGINES

Description ...... ' ...... · .39 Connecting Rods and Bearings...... 44 Cylinder Head .. '...... 40 Crankshaft and Bearings ...... 46 ENGINE Valves...... 41 Camshaft and Bearings .. .. 47 Pistons and Sleeves ...... 42 Timing Gears .... · .48

Description ...... 49 Oil Filter .. .51 ENGINE Oil Pump...... 49 Crankcase Breather. .51 LUBRICATION

Description...... 52 Intake Manifold ... · .57 Adjusting the Starting Controls .. 54 Magneto...... ' · .57 Carburetor (Starting Only) ... .54 Spark Plugs and Cables ...... 59 STARTING Governor Friction Control. .56 Cold Weather Starting...... 60

Governor Data ...... 61 Fuel Injection Pump. · .66 Diesel Fuel Specifica tions ... . · .62 Fuel Injection Nozzle .. .69 FUEL SYSTEM Notes on Servicing ...... 62 Air Cleaner .... · .71 Venting Air From System. .64 Injection Pump Air Cleaner · .71

Service Charts ...... Center of Book SERVICE. CHARTS

...... 73 Thermostat. . ... 73 Water Pump ...... 73 COOLING SYSTE M

TRANSMISSION AND T ransinission .... : .. : ...... · .78 Differential and Drive Bevel Gears...... 83 DIFFERENTIAL

Wheel Tractors ...... '" ." .88 Crawler Tractors...... 90 BRAKES T ractor-Engine-Over"Axle Uni ts ... . · .90

Description ...... 93 Removal and Replacement...... 94 CRAWLER TRACTOR Adjustment ...... ' ...... 93 STEERING CLUTCHES

Description .. _ .. __ . __ . ____ . _. _ .. ____ .. _ .... _ .97 fiNAL DRIVE AND Removal and Replacement ... __ . _ '" .. _ ...... 97 REAR AXLE

SPROCKET ORIVE AND Description_ ..... _. _'" _. ____ ...... 100 Removal and Replacement ...... _ ...... 101 PIVOT SHAFT

Description ...... _ ...... _ ...... _ .... 104 Starting Motor...... 109 ELECTRICAL Generator ...... ; _ ...... _ ... _ ...... 104 Storage Battery ...... _ ...... 111 EQUIPMENT

Frame: Front Axle and Front Wheels ...... 112 Rear Wheels ...... _ ...... _ ...... _ . _ ...... 114 Front Wheel Bearings. Seals; Toe-in Adjust..... 113 Care of Pneumatic Tires ...... 115 CHASSIS L-_S_te_e_r_in_g::..-G_e_a_r_._...;. . ..;.._._~.:... .:.._.:.. . .:.. . .:.. . .:..' .:....:... ..:...... : .....: ...;. ...;. ...;. . .:... .:.. . .:.. . .:.. . .:.. . .:.. . .:..' :... ..:....._1_1_4_ Track Frame Assemblies and Tracks ...... 115

Tractor Belt Pulleys ..... _ ...... _ ...... 120 Attachments and Special Features ..... _ ...... :'" . 125 ATTACH MENTS Power Take-Off ...... _ ..... _ ...... 124

Compiled and Reproduced From Originals by Jensales Inc. FARMALL M'S, "6" SERIES TRACTORS, CRAWLERS, AND POWER UNITS

BRIEF DESCRIPTIONS

Illust. 4A--The Farmall-M with belt pul ley attachment. The tires are 11-38 inch rear, 6.00-16 inch front. Regular steel wheel equipment: 51 inch. diameter rear wheels with 8 inch rims and 4 inch spade Illus~4B--The Farmall-MDV tracto~equip lugs, and 22-1/2 inch diameter front ped with muffler, electric lights and wheels with 4 inch rims and 2 inch high starter and belt pulley attachments. skid rings. Farmalls M and MD Farmalls MV and MDV Farmalls M and MD are the largest of Farmalls MV and MDV are high clear the Farmall tractors. This size Farmall ance tractors for work in crops planted will pull three l4-inch plow bottoms in high beds. They are especially adapted under most soil conditions. It will for use in sugar cane where cultivation is pull a 9 or 10-foot tandem disk harrow, continued until the plants have reached or other implements of similar draft re considerable height above the beds .. These quirements. -It will handle four-row plant four-wheel tractors have .high arched front ersand cultivators, three and four-row axles with 30-1/2 inches of clearance. middlebusters and listers, and two-row Rear axle and final drive housings give corn pickers. With belt pulley, it oper 10-27/32 inches more clearance than the ates the l-arger threshers, shellers, ham Farmall-M. Roller Cl:lains running in oil mer mills and other belt driven machines. are used for the final drives. Wheel With power take-off attachment it will treads are adjustable for a wide variety pull and operate a tractor binder, two of conditions. Power is ample for operat row potato digger, and the Farmall mower. ing the No. 2 cane plow or two-row cane The Farmal17MD is powered with the IH cultivator and other direct connected Diesel engin~. The Farmall-M is powered tools. The letter liD" in the model symbol_ with the IH carbureted engine, high com MDV indicates the Diesel engine, while the pression for gasoline or medium compres Farmall-MV is equipped with the carbureted sion for distillate-gasoline. engine.

Field speed~ for the Farmalls M and MD are approximately 2-5/8,3-1/2, 4-3/8 and 5~1/4 miles per hour. Where trac~ors are mounte.d on pneumatic tires the road W -6 and WD-6 Standard Tractors speed (5th) is apprOXimately 16 miles per hour. Tractors mounted on steel wheels have the road speed (5th) locked out. W-6 and WD-6 are medium size standard This assortment of transmission speeds, four-wheel farm tractors. They will furn together with variable speed engine gov~ ish ample powe~ to pull three 14-inch ernor makes it possible to select the stubble plows; drive a ~8-inch thresher, most economical speed for the job to be pull a la-foot field cultivator or tools done. Rear wheel treads are variable of similar power reqUirement. Both power from 52 to 88 inches to meet a wide range take-off and belt pulley output are similar of row crop spacings. - to the Farmall-M. Fjeld and road speeds

Compiled and Reproduced From Originals by Jensales Inc. BRIEF DESCRIPTIONS

day, or harrow (spring tooth) up to 30 acres. An A.S.A.E. standard power take off is available for operating the mechan isms of sprayers and dusters. Belt pulley attachment is also available. A hand operated over-center engine clutch is used in place of the foot operated spring loaded type of the W-6. The overall height of this tractor is low and the regular turning radius is short (11-1/2 feet); extra short turning radius is provided by means of foot operated steering brakes. A low~ low speed and reverse add to the desirable features of the 0-6 for orchard work. Streamlining oi'the fenders and hood avoid damage to. the trees or fruit. The 0-6 is powered with the IH carbureted Illust. I5A--The McCormi.ck-Deering WD-6 engine, high compression for gasoline or Diesel standard tractor, equipped with 11 medium compression for distillate-gaso inch belt pulley and pneumatic tires, 14- line. 30 rear, 6.00-16 front. are also comparable to Farmall-M.· Tract ors equipped with steel wheels have the fifth or road speed locked out of opera tion. The WD-6 tractor is powered with the IH Diesel engine. The W-6 tractor is powered with the IH carbureted engine~ high compression for gasoline or medium compression for distillate-gasoline.

. Illust. I5C--If operating conditions do not require the hood side you simply pullout . the hinge pin and remove it from the tractor. The engine cover can likewise be removed in a jiffy.

08-6 and OD8-6 Orchard Tractors Illust. 5B--The McCor.mick-Deering 0~6 or chard and grove tractor with 6.00-16 front and 13-~6 rear tires. All regular These tractors have the same basic equipment shown except the steering wheel chassis as the 0-6 except for the fender cowl. equipment. In place of the streamlined hood side sheets, cowl and rear fenders they have the Simpler type of fenders 0-6 Orchard and Grove Tractor as us.ed on the W-6 standard tractor. The 0-6 tractor is a modification of the W-6 and is adapted to the needs of The OS-6 tractor is powered with the the larger fruit grower. It will pull a same IH carbureted engine as the 0-6. three-bottom plow covering 9 to 13 acr.es The ODS-6 tractor is powered with the IH a day, tandem disk 30 to 40 acres per Diesel engine.

Compiled and Reproduced From Originals by Jensales Inc. FARMALL M'S, "6" SERIES TRACTORS, CRAWLERS, AND POWER UNITS

Illust. 6A--International ID-6 Diesel Illust. 6B--International TD-6 crawler tractor with front and rear wheel weights, tractor equipped with hood side doors. muffler attachment, and belt pulley at tachment. T -6 and TD-6 Tractors 1-6 and ID-6 Industrial Tractors These are the smallest of the IH crawler tractor line. They are used on the farm, These are next to the largest size of in the mills, in the timber and by road the industrial wheel type tractors. 1-6 builders where the going is tough and and ID-S tractors are used in a wide where maximUm traction and high draW-bar variety of construction; maintenance, efficiency is essential. Ample power is ma terials handling, and .. transporta tion provided to pull four l4-inch or three work. They power a list of equipment IS-inch stubble plows in most soil con which includes maintainers; front-end ditions, a 10-foot tandem disk harrow or shovels and loaders; road rollers; disk farm tools with similar power requirement. harrows ~nd mixers for mixed~in-place For belt work the available power is com roads; roll-over scrapers; snow plows; parable to other tractors in this "S" sweepers; cranes and hoists; winc-hes; series. trailer-trains; rock crushers and many other mounted and pull~behind items; also power take-off driven or belt driven types requiring 30 to 40 horsepower as prime For the industrial user, power is avail. mover. able for operating bulldozers S to 7 feet; bullgraders·7-1/2 to 8-1/2 feet; front end shovel 1/2 yard; small. logging arches and fire line plows. ' The·basic design of these industrial tractors is similar to the stand~rd W-6 and WD-6, exc.ept that they have slightly higher working speeds than the "w" type; Two rear power take-off attachments a foot accelerator is al~o used making are available to drive mechanisms of pull theoperaticin more flexible'overthe'wide behind machines of both farm and industrial range of speeds which the industrial type type. One atta'chment turns at 8S2 r.p.m., o.f op_era tion demands. The drawbar is driven directly from the transmission equipped with a spring mounted pintle countershaft. A reduced speed power take hook. off attachment turns at 540 r.p.m., also driven from the countershaft, incorporat ing a set of reduction gears. A front power take-off coupling is also available The ~D-6trarltor is powered with the for driving front mounted winches. " IHDies~l engine. The I-S 'is powered with the IH carbureted engine equipped w-itheither high compression or medium com:pr?ssioncomponehts for smooth economic~ The T-S is powered with the IH carbur al6per~tlon on high octane arlow octane eted engine, the TD-6 has theIR Diesel fu~ls respectively. engine.

Compiled and Reproduced From Originals by Jensales Inc. SERVICE CHARTS

FARMALL M'S, //6// SERIES TRACTORS, CRAWLERS and POWER UNITS

Chart 1. Carbureted Engine (End Section).

Chart 2. Wheel Tractor (Cross Section Through Right Side).

Chart 3. Farmall Tractor (Cross Section Through Right Side).

Chart 4. Crawler Tractor (Cross Section Through Right Side) . . Chart 5. Diesel Engine (Side and End Cross Sections).

Compiled and Reproduced From Originals by Jensales Inc. BRAKES should slow down at the same time. Should If the tractor is mounted on pneumatic one wheel stop and the other continue to tires a road test may be made. In this .revolve, loosen the adjustment on the test, loosen the brake which causes one wheel that stops until both wheels con of the wheels to skid. See illusts. 88A, tinue to revolve. 89A and 89B.

Brake pedal ·lock . control rod

Brake pedal lock control rod c

F E B-1611

Illust. 89A--O.-6.brakes showing (A) set screw; (B) brake rod; (C) brake rod jam nut; (D) brake lock; (E) rack; (F) set screw jam nut.

1"· Clearance ''h-\ ---j , ,

I -D __ -A

B-1610A

Illust.. 89B--Farmalls M and MY brakes,showing (A) hrake rod Jam nut; (B) clutch operating rod; (C) setscrew; (D) brake rod; (E) brake lock; (F) rack.

Compiled and Reproduced From Originals by Jensales Inc. SERVICE MANUAL

FARMALL

SERVICE

• • •

I NTERNATIONAL HARVESTER COMPANY (INCOIlI'OIIATlD) 180 NORTH MICHIGAN AVE. CHICAGO. ILLINOIS

Form C 3795. ".llIno ... UIIiIIUD nuu 0' AlillalCA

Compiled and Reproduced From Originals by Jensales Inc. INTRODUCTION

Serv1ce 1s sold the same as any other commod1ty and the purchaser 1s entltled to re celv1ng a fa1r value for h1s money. To give the purchaser the service on h1s tractor to wh1ch he 1s ent1tled by a dealer d1splay1ng the McCorm1ck-Deer1ng Internat10nal Serv1ce S1gn, th1s dealer's serv1cemen should be both competent mechanics and be well 1nformed on McCorm1ck-Deer1ng tractors and mach1nes. " Exper1ence develops competent mechan1cs, but to know your mach1nes takes study and a ready reference f11e. The Serv1ceman's Gu1de for the Farmall "M" g1ves 1nformat1on essential for the repa1r of th1s new tractor and 1s so la1d out that 1t w111 serve as a ready source of reference. Serv1ce spec1t1cations are listed for both the engine and chass1s. In addition serv1ce ch~rts show the relation of parts to each other with just enough text giv1ng tactory tolerances and g1vlng brlet instructlons for d1ssembllng and assembllng the tractor. The Farmall "M" Is a new tractor 1n every detail whlch- w111 requlre that servicemen make a thorough study ot its construction and the operation ot component parts ot the varlous assemblles that const1tute th1s tractor so they wl11 be able to properly dissemble and reassemble these un1 ts. It 1s only with a thorough understandlng ot the worklng p~rts and their relation, one to the other, that the quality ot McCormlck-Deerlng Service can be upheld.

INDEX SUBJECT Page Engine Specltlcations. • • • • • • • • • • • • • • • • • • • • • • 1,2,3 Chassis Spec1ficat10ns • • • • • • • • • • • • • • • • • • • • • • • • • • • 4,5 Speed Cllart. • • • • • • . • • • • . • • • • • • • • • • • • • • • • 4 Capac 1 ties . . . • • . • • • • • • • • • • . • • • • • . . . . • . • • • 5 Horse Power. • • • • • • • • • • • • • • •••••••••••••••• 5 Speclal Equ1pment. • • • • • • • • • • • • • • • • • • • • • • • • • • 6 Belt Pulley Service Chart •••••••••••••••••••••••••• 7 Power Take-oft Service Chart • • • • • • • • • • • • • • • • • • • • • • • • 7 Electr1cal Equ1pment Speclflcat10ns (Not Magneto) •••••••••••••• 8 Brake Adjustment • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • 9 Dlfterent1al and FlnalDrlve Serv1ce Chart ••••••••••••••••• 10 Chassls and Englne Serv1ce Chart • • • • • • • • • • • • • • • • • • • • 11,12,13 Eng1ne Governor. • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • 14,15,16 Settlng Bevel Gears. • • • • • • • • • • • • • • • • • • • ••••• 16,17,18 Front Wheel Adjustments ••••••••••••••••••••••••••• 19 Carburetor • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • • 19,20,21 Dimensional Drawlngs • • • • • • • • • • • • • • • • • • • • • • • • • • 22,23,24

Compiled and Reproduced From Originals by Jensales Inc. F armall Model "M" Tractor A new large size Farmall, the Model "M" unit which attaches to the side of the has been added to the McCormick-Deering crankcase. Engine is designed to mount line of tractors. It is being manufactured with four point suspension in tractor frame at Farmall Works, Rock Island, IllinOis. with rubber front mounting. When the Farmall "M" is equipped with Ease of operation arid operator's comfort pneumatic tires five forward speeds are at have been given special consideration. The the command of the operator - four working seat is a large implement type cushioned speeds and one road speed. When equipped with sponge rubber and covered with water with steel wheels the fifth speed is block proof duck. It is spring mounted and may ed out. Speeds when equipped with 9.00x36 be tilted up providing room for the oper tires are 2-1/2, 3-1/4, 4, 4~7/8 and ator to stand should he so desire. All 15-7/16 M. P.H. Reverse 3 M. P.R. This controls, gear shift, governor control assortment of speeds together with the lever, radiator shutter crank, magneto variable speed governor makes it possible grounding switch, power take-off control, to select the most economical engine speed clutch pedal and brake pedals are all wi th for the work to be done. in easy reach of the operator. The rear wheel treads are adjustable to Special attention has been given to the any tread from 52 to 88 inches. This is appearance of the Farmall "M". Its rugged accomplished by jacking up the rear of the ness and strength bas been given a sleek tractor,loosening the four bolts which and modern appearance with no sacrifice in lock the wheels to the axle, slide the accessibility. The radiator grille can wheels to the desired position and retight easily be removed by applying a screw en bolts. If still wider treads are de driver to four special screws giving them sired it is possible to secure longer a quarter turn which loosens them. The axles giving treads up to 96". screws are locked with a spring assuring a tight fit at all times, thereby eliminating The power plant is a 4-cyl1nder ~ x 5i" the possibility of rattles.' In addition bore and stroke, valve in head engine the screws are locked in the radiator governed at 1450 R.P .M. Engines are regular grille to prevent the possibility of them equipped wit h a combination manifold, becoming lost when the grille is removed. radiator shutter and compression rat~.o to The engine cover or hood is held in place burn either distillate or kerosene as fuel. with four spring latches. Engine design features are: Removable Differential and transmiss ion are as dry-liner cylinder sleeves, replaceable sembled into one housing which is connected precision bearings, force-feed lubrication to the engine by the clutch housing. Radi to all parts except piston pin and piston ator and front of engine are carried on which are lubricated by splash, and an oil two channel irons which bolt to the front filter with replaceable element. The bolster. crankcase, governor hous ing and valve housing are ventilated to hold condensation to a minimum. A variable speed governor The chassis and engine serial numbers is regular equipment and is built into one start at No. FBK-501 and up.

Model F armall "M" Engine Specifications GENERAL: Governed fast idle speed R.P.M •••• 1595 Cylinders, number and type ••• 4 Renew Governed low idle speed R.P.M •••• 950 able dry-liner Sleeves, grey iron. Minimum idle speed R.P.M. • • • 425 Bore and stroke • • • 3-7/8 x 5-1/4 Piston displacement per revolution, cu. CAMSHAFT: in •••• 247.65 Bearings ••• Three, babbitt lined steel Compression ratio (distillate or kero back sene) ••• 4.5 to 1 Bearing journal diameter, inches ••• 1st, Fuel ••• Distillate or kerosene 2.243 to 2.244": center, 2.118 to 2.119"; Piston speed, feet per minute at 1450 rear, 1.868 to 1.869". R.P.M •••• 1268.8 Bearing length, inches ••• 1st, 1-7/16"; Governed engine speed R.P.M .••• 1450 center, 1-15/32"; rear, 1-1/16"

1 Compiled and Reproduced From Originals by Jensales Inc. SHIMS FOR ADJUSTING BEVEL GEARS

fELTlEATtiER SEAL ANDWITH i~~~~~~~ LIP Of LEATHER SEAL TOWARD PULLEY o LEVER fOR . BELT PULLEY SHAfT BEVEL GEAR AND DRIVE BEVElPIHION ADJUSTMENT SHIFTING PULLEY~..,..;I."J ------~~...=.;;. INTO ENGAGEMENT Gears are set flush at the heel of the gear with .008"to.OlO" back-lash. Tooth contact should show a toe bearing. For more information on the adjustment of bevel gears, rt'fer to Page 16

ILLUST. 1. BELT PULLEY ASSEMBLY. ASSEMBLY IS DOWEL AND BOLTED TO TOP. FRONT SECTION OF TRANSt.11 SS ION AND I S DR I VEN FROM TRANSMISSION DRIVE GEAR,

COMBINATION LEATHER AND FELT SEAL WITH UPS TURNED IllUST.2 LEATHER SEAL WITH TOWARD BEARINGS POWER TAKE -OFF SHAFT LI PTURNED IN

ILLUST. 2. POWER TAKE-OFF SHAFT 7 Compiled and Reproduced From Originals by Jensales Inc. GSS-1330

Tran~mission and Final Drive

340, 460, 504 and 6Q6 Series Tractors

File in Tractor Service Manual FOREWORD

The instructions and special tools shown in this Blue Ribbon Service Manual are for use by International Harvester Dealers and their factory trained servicemen.

The specifications as listed in this manual are current as of the printing date. Due to changes and improvements in our products, dealers are periodically issued service bulletins to keep this manual up-to-date. We suggest you refer to the most recent information when performing service work on this equipment.

International Harvester Factory Trained servicemen are best qualified to service I.H. equipment.

CONTENTS

Page Introduction . . . . . 2 General Information 4 Specifications . . . . 4 SpliHing the Tractor. 4 Transmission Disassembly. . . . 6 Inspection and Repair . . . . 9 Reassembly and Installation 10 Rear Axle and Differential Removal and Disassembly. . 14 Inspection and Repair . . . . 17 Reassembly and Installation 19 Trouble Shooting ...... 28

INTRODUCTION

The information in this manual applies to both the Farmall and International tractors unless otherwise specified.

The following chart has been prepared to show the variation of service parts, parts that may be used and parts that should be used on the different models of tractors covered in this manual whenever transmission and! or final drive service is performed.

The chart should be used when performing regular maintenance or overhaul.

IMPORTANT: The disassembly and reassembly procedure will vary, depending on the type of parts used.