Mtd HWSS 80, HWE 80 INSTRUCTIONS Manual

SAFETY INSTRUCTIONS

This symbol is used to coil your attention to instructions concerning your personal
safety, Be sure to observe and follow these instructions.

Disengage all clutches and shift into neutralbefore

starting the engine.

Dis engage power to any attachments and
stop engine before leaving operator's seat or
making any repairs or adjustments.

Know the controls and how to stop quicklyREAD

THE OPERATOR'S MANUAL.

Do not allow children or adults to operate

the equipment without proper instructions.

Clear work area of objects which might be

picked up by the mower and thrown.

Disengage power to any attachment when

transporting or not in use.

Do not carry passengers. Keep children

and pets a safe distance away.

power take-off, shifting into neutral, settingthe

parking brake, stopping the engine and

removing ignition key when leaving machine

unattended.

to prevent tipping or los s of control.

Watch out for traffic when crossing or nearroadways.

When u~ing any attachments, never direct

discharge of material toward bystanders nor

allow anyone near the machine while in

operation.

Handle gasoline with care -it is highly
flammable: A. Use approved gasoline container.
B. Never remove the fuel tank cap or fill the
fuel tank when the engine is running, is hot, or
fill the fuel tank indoors. Als 0, do not smoke
when working around inflammable fuel. Wipe
up spilled gasoline. C. Replace gasoline cap
securely... Open doors if engine is in a

garage -exhaust gasses are dangerous.

Use gasoline' only as a fuel, and never asa

cleaner.

Keep machine in good operating condition
and keep safety devices in place. Use guards
as instructed in Operator1s Manual.Take precautions, such as disengaging

It is recommended that the machine be
stopped and inspected for damage after striking
a foreign object and that any damage be re­paired before restarting and operating themachine.Reduce speed on slopes and in sharp turns

Stay alert for holes in terrain and other

hidden hazards. Hydraulic fluid es caping under pres sure

can have enough force to penetrate the skin.

Don't stop or start suddenly when going

uphill or downhill.

Use care when pulling loads or using heavy

equipment: A. Use only approved drawbar

hitch points. B. Limit loads to those you can

safely control. C. Don't turn too sharp, and

use care when backing. D. Use counterweight

or wheel weights when suggested in Operator's

Manual.

Hydraulic fluid may also infect a minor cut or
opening in the skin. If injured by escaping fluid,see

a doctor at once. Serious infection or re­action can result if medical treatment is not
given immediately. Make sure all connections

are tight and that hoses and lines are in good

condition before applying pressure to the

system. Relieve all pressure before discon­necting the lines or performing other work
on the hydraulic system. To find a leak under
pressure use a small piece of cardboard orwood.

Never use hands.

Ilrust.2

International Cub La-Bay Tractor.

Assembled in this manual are operation,

lubrication, and maintenance instructions for

International Cub and Cub Lo-Boy Tractors.
This material has been prepared in detail in
the hope that it will help you to better under-

stand the correct care and efficient operation

of the tractor.

Your International Harvester dealer has

factory-trained servicemen, modern tools,
and IH service parts to assure you of satisfac-

tory tractor operation. To get the most out of

the t.ractor, and to assure economical opera-

tion and top performance, the tractor should
be inspected periodically by your International
Harvester dealer.

Depending upon your use of the tractor,
these inspections should be performed as
needed, or at least once a year, at which time
a tune-up or other necessary service work

should be performed. Proper pre-season
maintenance will assure you of minimum lost
time when your tractor is most needed.

Dealers are kept informed on the latest
methods of servicing tractors. They carry
stocks of IH parts, and are backed in every

case by the full facilitie s of a nearby
International Harve ster district office and
parts depot.

2

INTRODUCTION

In order to provide a tractor equipped as

nearly as possible to suit each customer's

needs, a variety of extra equipment and acces-

sories is available. Refer to page 76.

Where operating and maintaining instruc­tion on these items is required, it is included
in the instructions for operating or maintain­ing the tractor. Disregard the instructions
for equipment not on your tractor.

The illustrations in this manual are num­bered to correspond with page s on which they
appear; for example. 'Ilusts. 3, 3A and 38, are an

page 3.

Throughout this manual the use of the terms

LEFT, RIGHT, FRONT, and REAR must be
understood to avoid confusion when following
instructions. LEFT and RIGHT indicate the

left and right sides of the tractor when facing

forward in the driver's seat. Reference to

FRONT indicates the radiator end of the tractor;

to REAR; the hitch end. See Illust. 3.

Illust.3A

Location of the troctor seriol number.

Illust.3

Terms of location.

When in need of parts. always specify the

tractor and engine serial numbers including

prefix and suffix letters. The tractor serial
number is stamped on a name plate attached to
the right side of the steering gear housing.

S.. Illust. 3A.

The engine serial number is stamped on the

left side of the engine crankcase to the right
of the carburetor. This serial number is pre­ceded by the letters FGUBM. S..lllust. 38.

Illust. 38

Location of engine serial number.

3

Illust.4

Instruments and controls (12.volt system).

-BRAKE PEDALS

These pedals are used to stop the
tractor, to hold the tractor in a station­ary position, or to assist in making sharpturns.

The brake pedal latch (behind the left brake
pedal) is used to latch both brake pedals
together, causing the brakes to operate

simultaneously.

To stop the tractor, latch the pedals

together so both brakes will operate

simultaneously when the pedals are

pressed down.

To hold the tractor in a stationary

position, latch the pedals together,
depress and lock them in this depressed
position by using the brake pedal lock.

81

A-77082

Instruments and control s (6-volt system).

Illust.4A

To assist in making a sharp turn, the

pedals must be operated individually,

depressing the pedal on the side toward

which the turn is to be made.

4

INSTRUMENTS AND CONTROLS

BRAKE PEDALS -Continued

Caution! Always latch the brake pedals

together when driving the tractor in high

gear. To latch the pedals together. en­gage the latch (located in back of the left pedal)
in the slot in back of the right pedal. When the

brake pedals are not latched together. the

latch should rest in the slot in back of the left

brake pedal.

The brake pedal lock (1IIust. 12A) is used to lock
the brake pedals in the depressed position.
This prevents the tractor from moving.

CLUTCH PEDAL

This pedal. when depressed all the way.

disengages the engine from the transmission.

GEARSHIFT LEVER

Reverse ~ -c

Second

speed

forward

~~

~

ENGINE SPEED CONTROL LEVER

This lever controls the speed of the engine

and, when set in a given position, will maintain
a uniform engine speed even though the engine
load may vary.

Do not permit the engine to run below the

minimum idle speed for any length of time. or
operate the engine at more than the regular.
governed speed. Excessive speed is harmful.

Refer to the "Specifications'! on poge 74.

r'

First

speed

forward

This lever is used to select various gear
ratios provided in the transmission. There
are three forward speeds and one reverse

speed. See Illust. 5. Refer to "Specifications" on

page 74.

'-..)

5. Gear shifting positions.

Third

speed

forward

A-14822

CHOKE ROD

The choke rod makes possible the regulation

of the carburetor choke from the driver's seat.
Pulling out on the choke rod closes the carbu-

retor choke for starting the engine; pushing it
back in opens the choke.

CARBURETOR CHOKE LEVER

The carburetor choke lever controls the air

supply to the carburetor. When the choke lever

(1IIusts. 9 and 9A) is moved up all the way (closed
position) the air supply is cut off, thereby en­riching the fuel mixture for starting the engine.

If your tractor is not equipped with a cranking
motor and choke rod, move the choke lever up

all the way before cranking the engine. Moving

the choke lever back down opens the choke for
normal engine operation.

Illust. SA

Various positions of the engine speed control lever.

GOVERNOR

The governor is set at the factory and
should require no adjustment. Consult your
International Harvester dealer if the governor

does not function properly.

IGNITION SWITCH (12-Volt System)

A key-type ignition switch (1IIust. 4) is lo­cated on the instrument panel. Turn the key
clockwise to a horizontal position to turn on
the ignition. The key cannot be removed when

in this position.

Note: When the engine is not operating, or

the engine has stalled and the operator leaves
the tractor, the key must be turned to the

"OFF" position to prevent battery discharge.
PUSH BUTTON STARTING SWITCH (12-Volt System)

Pushing the button in completes the electri-

cal circuit between the battery and the cranking

motor and causes the cranking motor pinion toengage

the flywheel ring gear, thereby cranking

the engine. See Illust. 4.

5

~

'!Iust.

INSTRUMENTS AND CONTROLS

IGNITION SWITCH BUTTON (6-Volt System)

This button (1IIust. 4A) closes and opens the

electrical circuit for operating and stopping

the engine. Pull the button out for operatingand

push it in to stop the engine.

Note: On tractors with battery ignition,
when the engine is not operating or the engine
has stalled and the operator leaves the tractor,
the ignition switch button must be pushed all
the way in, so that the switch is in the "OFF'!

position, to prevent battery discharge.

STARTING SWITCH CONTROL ROD (6-Volt System)

To start the engine, adjust the choke rod
and pullout on the starting switch control rod
as explained on poges 9 and 10. See Illust. 4A.

LIGHTING SWITCH (Tractors Equipped with Electric

Starting and Warning Light)

The switch has two positions; "OFF" and

"ON". Placing the switch in the ., ON" posi-

tion activates the warning light.

LIGHTING SWITCH (Tractors Equipped with Electric

Starting and Lightin g)

The switch has four positions: "OFF"
position; "D" position for dim headlights,
bright instrument lights, a red taillight, and
a warning light; "B" position for bright

headlights, instrument lights, a red taillight,

and a warning light; and "R'I position for

bright headlights, instrument lights, and a
white rear light. The red taillight should
always be used when traveling on the highway

at night or during times of poor visibility.

The white rear light is for field use only and

should not be used on the highway.

BELT PULLEY AND POWER TAKE-OFF SHIFTER ROD

Location of 0; I pressure gauge.

Illust. 6

and the first mark when the engine is running
at speeds approximately 100 r.p.m. above

slow idle speed. If it does not, stop the engine
immediately and investigate the cause of the
oil pressure failure. If you are unable to find

the cause, consult your International Harvester
dealer before operating the engine.

Illust. 6A

Oil pressure gouge.

CHARGE INDICATOR

This instrument indicates whether the gen-

erator is charging or the battery is discharging.

If it shows discharge continuously, investigate

the cause to avoid completely discharging the

battery and possible damage to the .generator.
Refer to pages 33 and 34 for additional information.

The shifter rod is used to engage or dis-

engage the belt pulley or the power take-off.

Refer to pages 19 and 20 for operating instructions.

OIL PRESSURE GAUGE

This gauge (II lusts. 6 and 6A) indicates whether
lubricating oil is circulating through the
engine. The indicator needle should move at

least one-third of the distance between "0"

Illust. 68

Charge indicatar.

6

TRACTOR BREAK.IN PROCEDURE

Never operate an engine immediately under
full load. Break it in carefully, no load, light
load, and medium engine load for the first 25hours.

such as plows or disk harrows during
this period.

LUBRICA TICH

Tractors packed for export have all oil
drained from the engine crankcase, air cleaner
and all gear cases.

PNEUMATIC TIRES

Before moving the tractor, check the air
pressure in the pneumatic tires and inflate or
deflate the front tires to twenty pounds and the

rear tires to twelve pounds. Refer to the tables

on poges 50 ond 51 for more complete information.

ENGINE COOLING SYSTEM

Be sure the drain plug underneath the radi-

ator is closed. See Illust. 22.

Tractors shipped to destinations in the
United States and Canada have the cooling sys­tem filled with antifreeze solution. Check the
coolant level in the radiator. When cold, the
coolant level should be slightly below the bot­tom of the filler neck.

If water is added, use only clean water;

soft or rain water is recommended, as it does

not contain alkali, which forms scale and even-

tually clogs the passages.

Illust.7

Crankcase breather and all level gauge.

Lubricate the entire tractor, using the

"Lubrication Guide. II

Check the oil levels of the engine crankcase
air cleaner, transmission, belt pulley housing
and all gear cases to see that they are filled to
the correct levels with oil of the proper vis-

cosity for the prevailing temperature. Refer

to "Lubrication Guide" on poges 66 to 71.

Never start or operate the engine without

water or antifreeze solution in the cooling

system.

For further information, see "Cooling
System" on pages 21 to 24. If the tractor is to be
operated in freezing temperatures. refer to

"Cold Weather Precautions" on page 55.

FUEL SYSTEM

International Harvester gasoline burning

engines are specifically designed for use with

regular grade gasoline having a 90 minimum
octane rating -Research Method (approxi­mately 84 Motor Method).

Use clean fuel and keep it clean. Store fuel
in tanks equipped with hose and nozzle to pre­vent contamination of the fuel. The use of
funnels, cans, and drums is not recommended
because they are difficult to keep clean.

INSTRUMENTS AND CONTROLS

Thoroughly acquaint yourself with all instru-

ments and controls as described on pages 4to 6.

7

Air cleaner cap. Remove any dirt or chaff.
Air cleaner oil cup Remove, clean and refill. See the "Lubrication Guide. II

Lubrication points. See "Lubrication Guide. "

Cooling system. Check the level of the coolant in the radiator.

FILLING THE FUEL T AHK

Do not smoke or use an oil lantern when

working around inflammable fuels. When pour-

ing fuel, keep the hose and nozzle or the funnel
and container in contact with the metal of the

fuel tank to avoid the possibility of an electric

spark igniting the fuel. Do not light matches
near inflammable fuels, as the air within a
radius of several feet is mixed with a highly

explosive vapor.

The fuel tank filler cap has air vents. See

Illust. SA. Keep these vents open at all times to
assure proper flow of the fuel.

Illust.8

Filling the fuel tank.

Fill the fuel tank, preferably at the end of

each day's work. This will force out any mois­ture-laden air and prevent condensation.

Note: Do not fill the tank to its full capacity
as spa~e is required for vapor expansion in
the event of a temperature change. A tar.k

filled to capacity may overflow if exposed to a

rise in temperature or direct sunlight.

A Caution! Never remove the fuel tank cap

or fill the fuel tank when the e.'lgine is

running, is hot, or near an open flame.

Illust. SA

Vent holes in filler cop.

AIR CLEANER OIL CUP

The air cleaner cap should be cleaned, and
the oil in the air cleaner oil cup should be
changed more frequently than every ten hours
of operation, if unusually dusty and dirty con­ditions are encountered.

Illust.88

Oil level bead in air cleaner oil cup.

8

~

This engine is designed to operate on gasoline with a 90 minimum octane rating (Research Method).

The use of unleaded gasoline will lengthen spark plug and valve life, maintain engine performance

FUEL SYSTEM

Before attempting to start or operate the tractor, be sure you

review the instructions for the new tractor and thoroughly famil-

iarize yourself with the instruments and controls.

longer, and reduce rust and corrosion of engine while stored.

starting switch and wait a minute or two;
then try again.

Fuel

shut-r

valve

Note: Never operate the cranking motor while

the engine is operating.

6. Slowly release the clutch after the enginestarts.

STARTING THE ENGINE (6-Volt System)

1. Put the gear shift lever in the neutral

position. See Illust. 5.

2. Pull the choke rod all the way out. See

Illust. 4A.

Choke lever

(in closed I

111ust.9

Fuel system and controls.

Be sure the shutLoff valve on the fuel

strainer under the gasoline tank is open. To
prevent leakage or seepage when the valve is
in its full-open position, screw out the needle

stem (shut-off valve) until the seat on the stem
is tight against the stop.

STARTING THE ENGINE (12-Volt System)

1. Put the gearshift lever in the neutral

position. See Illust. 5.

2. Pull the choke control button all the way

out.

When using the choke, avoid overchoking,
as excessive use of the choke will flood the
engine, making it hard to start. The use of
the choke for starting will vary, depending on
temperature and altitude.

3. Advance the engine speed control lever

one-third. See Illust. SA.

Avoid overchoking, as excessive use of the
choke will flood the engine, making it hard to
start. The use of the choke for starting will
vary, depending on temperature and altitude.

3. Advance the engine speed control lever

one third. See Illust. SA.

4. Pullout on the ignition switch button.

See Illust. 4A.

5. Disengage the engine clutch by pressing

down on the clutch pedal. See Illust. 4A.

6. Pullout on the starting switch control rod

(1IIust. 4A) and release it as soon as the engine

starts. However, do not operate the cranking

motor for more than 30 seconds at anyone

time. If the engine does not start within this

time, release the starting switch control rod
and wait a minute or two; then try again.

4. Disengage the engine clutch.

5. Turn the ignition key clockwise to a
horizontal position. Press the push button
starting switch and release it as soon as the
engine starts; however, do not operate the
cranking motor for more than 30 seconds at
anyone time. If the engine does not start
within this time, release the push button

Illust.9A

Closing the carburetor choke lever.

(Tractors without cranking motor).

9

GASOLINE ENGINE

STARTING THE ENGINE -Continued

while the engine is rotating.

7. Slowly release the clutch after the en-

gine starts.

Caution! When hand cranking the engine,

be sure that the gearshift lever is in the

neutral position. Always stand in a po-

sition that will eliminate any possibility of be­ing struck by the starting crank, if there is a
reversal of the direction of the engine. Crank

the engine by using quick up- strokes; do not

spin it.

AFTER THE ENGINE STARTS

As soon as the engine starts, adjust the
choke to a point where the engine operates
without missing, and as the engine warms up,
open the choke by gradually pushing the choke
rod all the way in, or by moving the carbu-

retor choke lever down all the way. See !llusts. 9

and 9A. Do not use the choke to enrich the fuel

mixture, except when starting the engine.Note: Never operate the cranking motor

Immediately after the engine starts, check
the oil pressure gauge (1IIust. 6A) to see whether
lubricating oil is circulating through the en­gine. If it is not, stop the engine and inspect the

oil system to find the cause of failure. If you

are unable to find the cause, be sure to con-

sult your International Harvester dealer before

operating the engine.

STOPPING THE ENGINE

Retard the engine speed control lever by
pulling it all the way back (1IIust.4A). Allow the
engine to cool slowly from full-load operation
by slowly idling the engine for a short time.
Then turn the ignition key counter-clockwise to
the !'OFF'! position (12-volt system) or push
the ignition switch control button all the way in

(6-volt system) to stop the engine. It is advis­able to close the gasoline shut-off valve if the
engine is to be stopped for any length of time.

Note: Unusual operating conditions, or fuel
octanes below those recommended, may re­quire modification of the specified ignition
timing (shown in "Specifications") to a retarded
position. Retard from the specified setting as

required, approximately one degree for each

octane below 90, to eliminate knock (not more

than 6 degrees). It is recommended that this

be done by an International Harvester dealer.

CLEANING THE FUEL STRAINER AND SEDIMENT

BOWL

Clean the fuel strainer after every 250

hours of operation. To do this, proceed asfollows:

Close all shut-off valves.

2. Take the strainer apart by loosening

the nut under the sediment bowl.

3. Clean the sediment bowl and clean the

screan if necessary.

4. When reassembling, be sure the cork

gasket between the bowl and the main body is

in good condition and does not leak. Use a new

gasket if necessary.

..Nut.

Screen

-Gasket

Bowl

4-147541

(1Iust.10

Fuel strainer showing the gloss bowl removed for cleaning.

1.

10

GASOLINE FUEL SYSTEM

CARBURETOR

Use clean fuel; the presence of dirt and
water will disturb the functioning of the carbu­retor. Clean the fuel screen after every 500
hour s of ope ration.

The fuel screen can be removed for clean­ing by unscrewing the fuel line fitting and re-

moving the elbow; clean the screen and re-

place it.

The flange nuts which hold the carburetor

to the manifold should be checked periodically

for tightness. See "A", Illust. 11.

Occasionally check cover screws which
fasten the fuel bowl to the fuel bowl cover. S..
"B" 1!lust. 11. They should be kept tight to

avoid any air leakage past the fuel bowl cover

ga sket.

The engine and carburetor are correctly

set when shipped from the factory. If this set-

ting has been disturbed for any reason, pro-

ceed as follows:

Adjusting the Idle Adjusting Screw

Close the idle adjusting screw to its seat by
turning it to the right (or in); then open it one
turn. Start the engine and operate it at fast

idling speed (withqut any load) until thoroughly

warm. Cover the radiator if necessary or

close the radiator shutter if the tractor is so

equipped.

Illust. 11

Carburetor adjustment.

While the engine is running at fast idle speed.

it is advisable to screw in the throttle stop

screw a few turns to prevent the engine from
stopping when the throttle is closed. Now close
the throttle. The engine will then be idling at a

fairly high speed and the throttle stop screw

can be backed out a little at a time until the
desired idle speed is obtained.

If the engine misses or rolls while backing
out the throttle stop screw, the idle adjusting
screw may be adjusted either in or out until the

engine operates smoothly. Speed up the engine

for a few seconds; then recheck the idle adjust­ment. A slight adjustment in or out will give
the smoothest idle.

ADJUSTING

11

Illust. llA

Seat post base in the forward position

(Internotional Cub).

A CautionlOnlY one person, the operator,

should be permitted to ride on the trac­tor when it is in operation.

THE SEAT (International Cub)

The tractor seat can be set in either of two

positions by removing the tool box and changing
the position of the two cap screws in the seat

post base (1IIust. llA). giving a total adjustment

of 1-1/2 inches. Tighten the cap screws se-

curely when reas sembling and replace the tool

box.

ADJUSTING THE SEAT (International Cub La-Boy)

Before starting the tractor, adjust the seat

to the most comfortable position of the fourpositions

available to the operator.

The seat is quickly and easily adjusted by

changing the position of the four cap screws

in the seat support bracket (1IIust. 12) giving a
total adjustment of 4-3/8-inches. Tighten the
cap screws securely when reassembling.

DRIVING THE TRACTOR

ADJUSTING THE SEAT (International Cub Lo-Boy)

-Continued

made. The brake pedals must be unlatched so

they can be operated individually.

TOWING THE TRACTOR

When towing is necessary, cuse a rope,

chain, or cable and have an operator steer the

tractor and operate the brakes.

Attach a tow rope, chain, or cable around
the front axle and steering gear housing. When
towing a tractor, do not exc eed a speed of

twenty miles per hour.

Seat in the forward position

Illust.12

(International Cub Lo-Bay).

STARTING THE TRACTOR

1. Advance the engine speed control lever

slightly. See Illust. SA.

2. Disengage the clutch by pressing the

clutch pedal all the way down.

3. Hold the clutch pedal in this position and

move the gearshift lever to the desired speed.

4. Start the trac.tor in motion by slowly re­leasing the clutch pedal and advancing the en­gine speed control lever to the position where

the engine operates best for the load to be
handled. Note: Do not shift gears while the

engine clutch is engaged or while the tractor

is in motion.

50 Do not rest your feet on the clutch or

brake pedals while driving the tractor, as this

will result in excessive wear on theliningso

STOPPING THE TRACTOR

Disengage the clutch by pressing down

firmly on the clutch pedal, and move the gear-

shift lever to the neutral position. Use thebrakes

if necessary.

LOCKING THE BRAKES

Always lock the brakes when the tractor is

parked on a grade or when doing belt work. To

lock the brakes, first latch the brake pedals
together with the latch as previously described.
Now press down on the foot pedals; then place
the brake pedal lock in the engaged position as

shown in Illust. 12A. To disengage the lock, press
down on the foot pedals and lift the lock out and
place it in the disengaged position, against the

right brake pedal.

Always latch the brake pedals together be-

fore driving the tractor in high gear. To latch

the pedals together, engage the latch (located

in the back of the left brake pedal) in the slot
in the back of the right pedal. See Illust. 12A. When

the brake pedals are not latched together, the

latch should rest in the slot in the back of the
left brake pedal. See Illust. 12A.

STEERING THE TRACTOR

The tractor is steered in the conventional

manner by means of the steering wheel; how-

ever, to make a sharp or pivot turn, press

either the right or left brake pedal, depending

on the direction in which the turn is to be

Brake pedals latched together and lock engaged to hold tractor

Illust. 12A

in a stationary position.

12

Illust.13

Touch.Control system.

The Touch-Control system is ready to oper­ate whenever the engine is running. You will
receive the maximum of satisfactory service
by closely adhering to the following simple pre­cautions and service operations.

The importance of keeping the system free

from all dirt, grit, and other foreign matter
cannot be stressed too strongly. Keep the
Touch-Control fluid reservoir, pipe lines, and
pump as clean as possible at all times. The
same care must be given to the cylinder, hose

lines, and connections. As an added precaution

against the entry of dirt into the system, the

reservoir is constructed without an air vent.
Sufficient air space is allowed above the fluid
level to compensate for the pressure changes
occuring during the operation of the system.

As a result a small amount of pressure may

be found in the reservoir upon removing the
filler plug when checking the fluid level.

Note: Always keep the Touch-Control lever

or levers in the rearward position (toward
tractor seat) when the tractor or the Touch-

Control system is not being actively used.
This places the piston in the retracted position,
preventing exposure to any moisture which

may have conden~ed in the leather dust boot.

The control lever ('Ilust. 13) gives the operator
complete, instantaneous and effortless control
of all the direct-connected equipment operating
adjustments. The use of the lever will depend
on the type of equipment mounted on or pulled
by the tractor. Complete instructions for oper­ating the lever are included in the Owner's or
Operator's Manual furnished with the equip-

ment. General instructions for operating the

lever are given below.

The control lever quadrant is provided with

a pair of adjustable Touch-Control lever stops.

The front stop when set in a given position
will limit the travel of the control lever and
prevent the equipment from being raised above

the desired height.

The rear stop is used to point out the posi­tion where the control lever should be each

time the equipm ent is lowered to maintain a

uniform working depth.

To lower the equipment, move the control
lever back until the equipment has reached the
desired working depth; then move the rear stop
to this position and tighten in place.

13

TOUCH-CONTROL SYSTEM

The working depth will be maintained by

moving the lever back to the stop each timethe

equipment is lowered.

After attaching the equipment to the trac­tor, the Touch-Control lever front stop must
be properly set if there is a possibility of the

equipment not clearing the underside of the
tractor. Once the stop is set, the equipment
can be raised quickly by a flick forward on the

control lever.

To set the Touch-Control stop. slowly

move the control lever forward to raise the

equipment and stop it before the equipment

hits any part of the underside of the tractor.

Then move the stop up against the control

lever and tighten it in this position. This will
prevent the control lever from being moved
past the point of the desired lifting height.

Note: If the equipment hits the underside of

the tractor. in addition to doing possible dam-

age to the tractor or equipment. the Touch-

Control system will not have completed its

cycle and this will cause the pump unit to oper­ate at maximum high pressure and heat the IH
Hy- Tran@ fluid exces si vel y. thereby causing
possible internal damage to the pump. This

condition can be quickly detected by a notice-

able loading of the engine.

If this condition should occur. immediately

move the control lever back and set the con-

trol lever stop at a point where the raised
equipment will not hit the underside of the

tractor.

AIR IN THE SYSTEM

Make certain that all connections and open­ings are well sealed. The entire system must
be kept tightly sealed at all times, not only to

prevent loss of fluid but also to avoid entrance
of air in the inlet end of the system. Air enter­ing the system interferes with proper lubrica-

tion of moving parts. It causes an increased
amount of vibration and an unsteady pressure.

Presence of air in the system will be noticed

by a noise in the pump or by the pump laboring
when operating under high pressure. Proper
filling of the reservoir and working the system

during the filling process, will work the air

out of the system.

Freeing the System of Trapped Air

Start the tractor engine and operate it at a

moderate idle speed. With the filler plug re-

moved, move the Touch-Control lever or

levers back and forth 10 to 12 times through its

full range of travel. This quickly frees the sys­tem of trapped air. Then with the control lever
in the rearward position (toward tractor seat),
stop the engine.

If necessary. add sufficient clean fluid tothe

reservoir to bring the iluid level to within

liZ-inch of the bottom of the filler opening.Replace

and tighten the filler plug.

Touch-Control raises and lowers the com-plete

hitch, thus raising the equipment to the

instructions are general only. Refer to the imple-

transport position, or lowering it to the work-

ing position.

The leveling crank at the rear of the tractor
controls leveling. and the depth adjusting crank
on the right side controls depth adjustment.

When operating the hitch in other than thefixed

drawbar position, the belt pulley must be
removed. The belt pulley shaft must be cov­ered with the belt pulley shaft guard and the

power take-off shaft must be covered with the
power take-off shaft guard, if not already soprotected.

Note: Refer to page 13 for additional information

r~garding the Touch-Control system.

Do not attempt to gauge the depth with this
lever unless so instructed in the equipment
manual. Plows must be free to float up and
down and to seek their own level as determined

The leveling crank controls leveling as required

permits the plow to swing from side to side,
is free to swing.

14

Note: The following operating and adjusting

ment Operator's Manual for specific instroctions.

The Touch- Control hand lever serves to

control the raising and lowering of equipment.

by the hitch setting. The depth adjusting crank
(1IIusts. 15 and 16) serves to control the working
depth of plows and various other equipment.

for plowing when opening up a furrow or for a
change in plowing depth. The diagonal link

when the lock bolt is loose so the diagonal link

FAST-HITCH

Note: Before operating tractors equipped

with Fast-Hitch. the front wheels must be

equipped with a set of either one-piece or two­piece wheel weights and the front tire tubes
filled three-quarters full with a calcium chlo-

ride solution. See IlLiquid Weights" and

"Front Wheel Weights".

When using the utility carrier with the trac-

tor, additional front end weight is required in
proportion to the weight of the payload as shown
under "Fast-Hitch Load Limitations".

Illust. 15

Rear view af International Cub Troctor with Fost.Hitch.

15

FAST-HITCH

Rear view of International Cub La.Bay Tractor with Fast.Hitch.

Illust. 16

16

FAST-HITCH

COUPLING THE EQUIPMENT

Adjust the height of the hitch socket with
the Touch-Control and level the hitch with the
leveling crank so the prong of the equipment
can enter the hitch socket when the tractor is
backed against the equipment (1IIusts. 15 and 16).

The latch snaps shut when the prong reaches

the proper position.

To uncouple the equipment on ground level.

lower the equipment to the ground. reach back
and lift the hitch latch (II lusts. 15 and 16) with the
forefinger. If the latch is difficult to disengage.

back the tractor slightly against the equipment
to relieve the strain on the latch. The latch
will remain open until the equipment prong is
withdrawn.

HITCH ADJUSTMENTS

The height of the hitch determines the

working depth of the equipment. The depth

adjusting crank (1IIusts. 15 and 16) raises and
lowers the front end of the pull bar to reach
the desired working depth called for in the in-

structions in your equipment manual.

Fast-Hitch pull bar and diagonal links may be

removed to provide more clearance under thetractor.

FAST-HITCH LOAD LIMITATIONS

Caution! Do not overload the rear axle or
the Fast-Hitch components with the

equipment or accessories.

The transport loads listed below are con­sidered satisfactory for Fast-Hitch operation.
The equipment weights shown in the following
examples do not include any allowance for ad-

ditional weights on the equipment.

a. Five-foot disk harrow with ten 20-inch

disks-360 pounds-use a rear wheel tread set-

ting up to 56-inches.

b. Rotary hoe-355 pounds-use a re~r

wheel tread setting up to 56-inches.

Utility carrier.

International Cub -with a 400 pound payload in

the center of the platform -use a rear

wheel tread setting up to 56-inches.

PULL BAR EXTENSION

A pull bar extpnsion is available for pulling

trailing-type equIpment. When in use, the

extension is attached to the pull bar with the
hitch hole toward the rear. It is held in place
by a pivot pin and a quick attachable cotter

pin. When not in use, the pull bar extension

should be turned with the hitch hole toward

the front. See Illusts. 15 and 16.

When plowing. the lock bolt (or hand

screw) on the diagonal link must be loose or

unscrewed far enough so that the diagonal link

is free so the plow can swing from side to
side. Additional lateral swing can be obtained
when required. by removing the quick- attach­able cotter pin "A" (1IIusts. 15 and 16) from the
pull bar support.

When operating with middlebusters or culti-

vator s, the lock bolt must be screwed in tightly
to keep the unit in a rigid position to prevent
the equipment from swinging.

When cultivating crops with high foliage,

turn the depth adjusting crank so the hitch bail

is set at its highest position. If necessasy the

International Cub Lo-Boy -use a rear wheel
tread setting up to 56-inches with the front
tire tubes filled three-quarters full with a

calcium chloride solution, the pay load must

be proportioned to the amount of front end

weight as follows:

Maximum

Carrier

Payload i

200 Ibs.

250 Ibs.

In general, the loads must decrease as the
tread settings increase, and the loads must
decrease as the distance from the rear axle
to the center of gravity of the load increases.

Minimum Front End Weight

set of one-piece weights (50 1bs.)

i set of two-piece weights or 2 sets

of one-piece weights (100 1bs. )

-set of two-piece weights and 1 set

of one-piece weights (150 1bs.)

set of two-piece weights and 2

sets of one-piece weights (2001bs.)

c.

3151bs.

3751bs.

17

The tractor exerts its pulling power on

trailing-type equipment by means of the draw-

bar, which is adjustable up and down to ac-

commodate different hitches. Proper hitching

will save both the tractor and the equipment it

is pulling from undue strains. Hitch so the

center line of pull of the tractor will fall in

line with, or at least near, the center line of

draft of the trailing equipment. Hitching to
one side or the other of the line of draft will
cause stresses and strains on both the tractor
and the equipment being pulled, frequently

great enough to do permanent damage. Incor-

rect hitching will also tend to make the tractor

difficult to steer and will result in unsatis-

factory work by the equipment being pulled.

When using a long chain to hitch the tractor

to the load. drive the tractor forward slowly

until all of the slack is taken out of the chain.

~

/"00('1 .

'" 5~'i't1'i

-,

A-IZ".f

When the tractor is pulling power equipment, be

sure that all power line shielding is in place and in

good order.

REMOVING THE DRAWBAR

The quick-attachable drawbar can be

easily removed. To remove the drawbar,
loosen the bolts "A" (1IIust. 18) and unhook the

complete drawbar.

The drawbar on International Cub tractors

can be reversed and placed in the forward po-

sition when so de sired.

ADJUSTING THE DRAWBAR

The drawbar can be set at three different

heights to obtain the proper hitch position.

To raise or lower the drawbar, remove
bolts "B" (1!lust. 18A), and raise or lower the
drawbar to the upper or lower hole in the draw­bar bracket. Replace bolts "B" and tighten se-

curely.

Illust. 18

Removing the drawbor.

Illust. 18A

Orawbar adjustment.

18

BELT-PULLEY

pull bar and support assembly must be dis­connected and lowered to the ground by re­moving the pin 'IB'I at the leveling screw hous­ing and the pin lICIt at the lateral link clevises.

Then move the diagonal link to one side. See

Illust. 16.

OPERATING THE BELT PULLEY OR POWER T AKE.OFF

WITH THE TRACTOR STANDING STILL

1. The transmission gearshift lever must be

in the neutral position.

2. Move the engine speed control lever back

to low idle speed.

Don't put on or r~mov~ th~ b~lt from th~ b~lt

pull~y whil~ th~ pull~y is in motion.

If your tractor is equipped with a belt pulley

or power take-off, the following instructions
and precautions should be carefully studied
and followed.

The belt pulley and power take-off are
started and stopped by the sarn.e engine clutch
as the tractor. Be sure to disengage the engine

clutch before rn.oving the belt pulley or power
take-off shifter rod. The belt pulley is driven
by the power take-off shaft; therefore, the sarn.e

shifter rod is used to operate either the belt
pulley or power take-off. The shifter rod

should always be in the disengaged (forward)
position when the belt pulley or power take-off

is not in use.

Note: When the International Cub Lo-Boy

tractor is equipped with the Fast-Hitch, the

3. Depress the clutch pedal to disengage theengine
clutch.

4. Press down on the shifter rod and move it
back to the engaged position; release the shifter
rod and allow it to lock in place.

5. Slowly release the clutch pedal.

6. Observe the following instructions whenusing
the tractor belt pulley:

Secure the equipment to receive power

in the desired location.

Align the tractor belt pulley with the
equipment pulley. Keep the tractor

level if possible.

Observe the direction of belt travel in-

dicated on the belt. and install the belt
accordingly to prevent damaging it.

Tighten the belt enough to prevent the
belt from rubbing against itself during
operation. Do this by driving the trac­tor into the belt, locking the brakes,
and blocking the tractor rear wheels.
(When using a very long belt or a
crossed belt, it will not be possible to
eliminate all rubbing).

1

2.

3.

4.

Always stop the power take-oIl belore dis-

mounting Irom the tractor.

5. Gradually bring the tractor engine up
to speed, making sure the belt is run­ning trae.

Note: Static electricity, generated by belt
work, can be discharged harmlessly from trac­tors with pneumatic tire s, by attaching a chain
to the tractor and allowing it to touch the ground

For belt and pulley speeds. refer to poge 75.

l~

BELT -PULLEY AND POWER TAKE-OFF

OPERATING THE POWER TAKE-OFF WITH TRACTOR IN

MOTION

Follow the first four steps outlined above;

then release the power take- off shifter rod and

allow it to lock in place. Keep your foot
pressed down on the clutch pedal (in the disen­gaged position), advance the engine speed con-

trollever and move the transmission gearshift
lever to the speed that is desired to run the

tractor. Slowly release the clutch pedal. This

will start the tractor in motion with the power

take-off in operation.

Caution! When operating power take-off
driven machines not equipped with an
overrunning clutch (such as a rotary

brush cutter), the following precautions shouldbe

taken:

Slowdown when approaching trees, fences,

or ditches. Flywheel effect of the driven ma-

chine will drive the tractor forward after the
engine clutch is disengaged. To stop the for-ward

travel more quickly, retard the engine
speed control lever, disengage the engine
clutch, move the gear shift lever to the neu-

tral position, and apply tractor brakes.

Replace the removed cap screws with the

extra cap screws supplied with the belt pulley

and power take-off. Use two 3/8 N. C. x 1-3/8-

inch cap screws at 'lA" (1IIust. 20A) and the three
3/8 N. C. x 1-1/8-inch cap screws at 'IB'I. Use
flat washers in front of the lock washers and
tighten the cap screws securely.

Caution! Always cover the power take-offexposed

shaft with the guard flC" (1IIust.

20A) when the power take-off is not being

The specifications for the power take-off

will be found on page 74.

CHANGING FROM POWER TAKE-OFF TO BELT PULLEY

Remove two 3/8 N. C. x 1-3/8-inch cap

screws "A" (1IIust.20A) and the three 3/8 N. C.
x 1-1/8-inch cap screws at "B". Apply a light
coating of grease to the power take-off shaft
and female spline in the belt pulley housing.
Then slide the belt pulley and housing complete
on to the power take-off splined shaft.

CHANGING FROM BELT PULLEY TO POWER TAKE-OFF

Remove two 3/8 N. C. x I-S/8-inch cap

screws "A" (1IIust.20) and three 3/8 N. C. x

1-3/8-inch cap screws "B" and remove the

belt pulley and housing. complete. Set the
belt pulley and cap screws aside for futureuse.

Insert the two 31B N. C. x 1-5/B-inch cap

screws with lock washers at "A" (1IIust.20) and
the three 31B N. C. x 1-3IB-inch cap screws
with lock washers at I'B'I and tighten all cap
screws securely.

Check the lubricant in the belt pulley hous-

ing as instructed in "Lubrication Guide'! on page

71.

used.

Belt pulley and power take-off.

Illust. 20

II lust. 20A

Power take-off.

20

The thermo- siphon principle is used for

circulating water in the cooling system. (The

temperature of the water governs the rate of

circulation.) Therefore, a thermostat and a
water pump are not required.

When the tractor is shipped from the fac-

tory it is equipped with a nonpressure -type

radiator cap.

A pressure-type radiator cap IS available
from your International Harvester dealer as a
replacement for the regular production radi­ator cap. if so desired.

The gasket surfa...~ must be in good condi-

tion. The cap must be properly tightened to
the stop, and the system must not have loose

connections or leaks. Unless these instruc-

tions are followed, pressure will not be main-

tained, and loss of water and consequent.over­heating will result. When draining the radia­tor, always remove the filler cap to permit

complete drainage.

If the regulating valve is faulty, replace the

radiator cap with a new one of the same type.

Do not attempt to repair or replace any of

the regulating valve parts.

Caution must be exercised in removing the

pressure-type radiator cap when the water in
the cooling system is hot. See instructions in

the following section.

The water is circulated through the engine

block, cylinder head, and radiator by the
thermo- siphon method. As the engine warms
up, the water is heated, expands, and circu­lates back through the radiator where the
water is cooled before again circulating

through the engine.

When the radiator is equipped with a pres-

sure -type radiator cap, the cooling system

operates under pressure which is controlled

by means of a regulating valve built into the
radiator cap. Always use clean water (soft or
rain water if possible).

FILLING THE COOLING SYSTEM

Be sure the radiator drain plug (1IIust. 22) is

closed; then fill the radiator to a level slightly

below the bottom of the filler neck, when

equipped with a nonpressure-type radiator cap;

or to a level approximately 2-inches below the
top of the filler neck, when equipped with a

pressure-type radiator cap. Filling the radi-

ator to this level will allow for expansion of

the coolant under normal operating conditions.

Use clean water; soft or rain water is recom­mended, as it does not contain alkali, which

forms scale and eventually clogs passages.

If the engine is to be operated in freezing

temperatures, refer to "Cold Weather Pre­cautions. II

ADDING WATER TO THE COOLING SYSTEM (When

Equipped withe Pressure-Type Radiator Cap)

Caution! If the water in the cooling system

is hot and water is to be added, observe

the following:

Turn radiator cap IIAII (1IIust. 21) slowly

counterclockwise to the safety stop to allow

the pressure of any steam to escape; then

press down on the cap and continue to turn
until the cap is free to be removed.

Before replacing the filler cap, be sure to
remove any chaff or dirt particles which may
be on the gasket surface or cap, and tightenthe

cap clockwise to the stop.

Note: A pressure -cooled system will not
operate properly unless the cooling system is
tight.

21

"A" Radiator cap.
"B" Filler cap gasket.
"C" Filler neck.

Illust. 21

Water level In pressure-cooled radiator.

., D" Upper water tank.
"E" Overflow pipe.

COOLING SYSTEM

ADDING WATER TO THE COOLING SYSTEM (When

Equipped with Pressure-Type Radiator Cap) -Continued

Allow the engine to cool and fill the radiator

slowly to approximately 2-inches below the

top of filler neck I'C'I, Due to expansion, when

the system becomes hot, any excess water

will be discharged through overflow pipe I'E",

Note: Do not pour cold water into the radi­ator if the engine is very hot, unless conditions
make it absolutely necessary; in which case
start the engine, let it idle. and slowly pour
water into the radiator.

CLEANING THE COOLING SYSTEM

Twice a year or more often, depending
upon the mineral content of the water used,
the cooling system should be drained and
thoroughly flushed. This is particularly im-

portant before using an antifreeze solution.

If the engine is to be operated in freezing

temperatures. refer to "Cold Weather Pre-

cautions" on page 55. For cooling system capa-

cities, refer to page 74.

Drain the cooling system by removing the

plug on the bottom (center) of the radiator
(1IIust.22). Allow the system to drain; then re-

place the plug.

RUST PRi:VEHTIOH

One of the most common causes of engine

overheating is a rust-clogged cooling system.

Rust interferes with circulation and cooling,

which causes overheating.

The practice of flushing the system by forc-

ing water from a hose in the radiator filler

neck, without the use of cleaning solutions,
may be only a waste of time. Iron corrosion

is greater than that of any other cooling sys-

tem metal, which accounts for the large
quantities of rust found in neglected water
jackets. Heavy rust deposits in the water
jacket hold in heat and create local hot spots,

especially around the exhaust valve seats.

Under these conditions. the metal may get so

hot that the valves will stick or burn, or the

cylinder block or head may be damaged by heat
cracking.

Unless the cooling water is treated with a

corrosion preventive, rust and scale will even­tually clog the passages in the radiator and

water jacket. This condition is aggravated in

some localities by the formation of insoluble

salts from the water used.

Illust. 22

Cooling system.

IH Cooling System Cleaner, dissolves rust,

scale, and sludge and retards future corrosion

when used according to the directions on thecontainer.

Note: Do not use chemical mixtures to stop

radiator leaks except as a temporary measure

in an emergency. Instead, have the radiatorrepaired.

If the radiator is clogged with insoluble salt

formations, take it to a reputable concern
specializing in the removal of such formations.
Reliable radiator service stations are familiar
with local conditions and are equipped to apply

the proper treatment.

In localities where alkaline, acid, or saline

waters are the only kind available, the addition

of a rust preventive or "inhibitor" will tend to

minimize the corrosive action of such water.

22

COOLING SYSTEM

RUST PREVENTION. Continued

For rust prevention during winter use of

the engine, a fre sh filling of antifreeze con­taining an effective corrosion preventive

should be used. In the spring, drain and dis­card the old antifreeze solution, as the rust
preventive or "inhibitor" may be exhausted

from contamination and continued use.

After draining the antifreeze, a rust pre­ventive should be added to the cooling water
to protect the cooling system during warm

weather operation. This inhibitor solution
should be drained and discarded in the fall
when danger of freezing again makes nec-

essary the use of an antifreeze.

RADIATOR CORE

Overheating is often caused by bent or

clogged radiator fins. If the spaces between

the radiator fins become clogged. clean them

with forced air or water. When straightening

bent fins. be careful not to injure the tubes
or break the bond between the fins and tubes.

FAN BELT TENSION

Belts on new tractors (also new replace-

ment belts) lose their tension as they "seat"
themselves in the pulleys. New belts should
be checked after the first 10 hours of engine

operation and eve.ry 50 hours of engine opera­tion thereafter to assure maintenance of the

correct tension. The tension is correct when

the belt can be depressed without effort by the
thumb. approximately 1/ 2-inch to 3/4-inch.

midway between the two pulleys. See Illust. 23.

If the slack is more than I-inch. adjust the

belt as follows:

Illust. 23A

Fan and generatar belts.

before adjusting the fan belt tension. The ten-

sion of the fan belt is adjusted by loosening fan

spindle "G II (1IIust.23A) and moving the fan and
hub assembly up or down until the correct ten-

sion is obtained. After the correct tension is
obtained, tighten fan spindle ffG 'f. To adjust

the generator belt, see "Generator Belt."

After a new belt has been in use approxi-

mately 10 hours, check the tension and adjust
again if necessary.

Illust. 23

Correct belt tension.

Adjusting the Fan Belt

When the tractor is equipped with a gener-

ator, first loosen nuts "A II and "B" (1IIust. 23A)

Removing the Fan Belt

To remove the fan belt. loosen fan spindle

lIC't (1IIust.23A) and slide the fan and hub assem­bly to the bottom of the groove on the crank-

case front cover. The fan belt can then be

slipped over the bottom drive pulley and

worked up over the fan blades.

Replacing the Fan Belt

Replace the fan belt when it becomes soaked

with grease, or when it is so badly worn that
it does not drive the fan at the proper speed.

When replacing the belt, reverse the pro­cedure outlined uIlder "Removing Fan Belt,"
except that belt can be started on the lower
pulley by hand, and by slowly cranking the

engine. the belt will find the correct position.

23

COOLING SYSTEM

GENERA TOR BELT

After the fan belt tension has been adjusted,
move the generator toward or away from the
engine to get the correct generator belt tension;
then tighten nuts I'A'! and "B" (1IIust. 23A). The

generator belt should be tight enough as not to
allow slippage, but not so tight as to cause
side thrust on the generator bearing. Allow

1/4 -inch slack. See Illust. 23.

FAN HUB LUBRICATION

Every six months or after every 500 hours

of operation, whichever occurs first. remove

oil retainer screw !'F'! (II lust. 23A) and turn

the fan assembly so that the oil filler hole is

at the right horizontal posit~on. Add engine oil
until the oil reache s the level of the hole. Now
turn the assembly so that the hole is on the
bottom and allow any excess oil to drain out.

The oil is then up to level of the top of the

stand pipe (approximately 1-1/2 ounces). See

Illust.24. Replace the oil retainer screw and

Fan hub partially disassembled showing oil level.

Illust.24

be sure that the retainer screw gasket is inplace.

Note: The rubber gasket located behind the

hub at I'E'I (1IIust.23A) is used for shipping pur-poses

only. It does not have to be replaced

when worn out.

'f

Clean air for combustion is assured by an

oil-type air cleaner. A heavy screen in t~1e

air intake cap prevents large particles from

entering the air cleaner. The air then passes
to the oil cup where it goe s through a bath of
oil. As the air rises to the intake manifold, it

passes through a series of oil-bathed screens

and the fine dust is removed. As the oil from
the screen works back down, it carries the

dirt with it and settle s in the oil cup. Hever allow
dirt to build up in the cup more than 1/2-inch deep.

OIL CUP SERVICE

Clean and refill the oil cup every day J or

every 10 houirs of operation (more frequently

when operating under dusty conditions). Refill

the oil cup to the oil level bead with the same

grade of oil used in the engine crankcase. For

the oil cup capacity J refer to page 65.

Do not remove the oil cup while the engine
is operating. Before replacing the oil cup,
clean or wipe oil or grit from the top bead of

the oil cup.

Illust.24A

Servic ing the oi I cup.

24

AIR CLEANING SYSTEM

AIR INTAKE CAP AND SCREEN

The screen in the air intake cap prevents

chaff and other coarse dirt from getting into
the air cleaner. Keep this screen clean and
free from all chaff, oil, dust, or paint, as
clogged holes in the screen will reduce the
power of the engine by restricting the flow ofair.

WASHING THE CLEANER

After every 150 hours of operation -par-

ticularly if operating the tractor in an atmos-

phere heavily laden with dust, chaff or lint -

remove the entire air cleaner from the trac-

tor, disassemble it (1IIust. 25) and wash the parts

thoroughly in kerosene. Be sure to clean out
the air intake pipe.

After all parts have been thoroughly cleaned,

replace the air cleaner body on the tractor.

Make sure all joints are airtight. Replace the
air intake cap. Fill the oil cup to the proper
level with the specified grade of oil and replace
it on the air cleaner. Be sure it is held securely
in place by the oil cup bailor clamp.

GEN ERAL PRECAUTIONS

As an added precaution against dirt entering

the engine, frequently inspect the flexible rub-

ber hose connections between the carburetor

and the air cleaner. If they show any sign of

deterioration, replace them. To eliminate

strain on the rubber hose connections, be sure
the pipes line up. All joints between the air
cleaner, carburetor, manifold and cylinders

of the engine should be tight. All gaskets must
be in good condition and the bolts should be

drawn up tight.

CRANKCASE BREATHER

The crankcase breather and oil filler cap

(1IIust.7) has an oiled aluminum crimp filler

which acts as a dust filter for crankcase ven-

Exploded view of air cleaner.

Illust. 25

International Cub Tractors with serial num- tions. Be sure all terminals are clean and se-

bers 224401 and up or International Cub Lo- curely fastened.

Boy Tractors with serial numbers 18701 and

up are equipped with a twelve volt electrical I
system. I

International Cub Tractors with serial num- "

bers below 224401 or International Cub Lo-Boy

tilation. Clean and reoil this breather each

time the engine oil is changed.

ITractors with serial numbers below 18701 are

equipped with a six volt electrical system.

The electrical system of the tractor con- I

sists of a generator. voltage regulator. crank-

ing motor. lights. lighting switch. electrical I
instruments. a battery. and either a magneto

or a battery ignition unit. Colored plastic­covered cables are contained in a harness of
nonmetallic. oilproof. and waterproof woven
braid.

,

Use the illustrations on pages 25 and 26, andthe

wiring diagrams on pages 35 to 41 as a guide
for identifying the various electrical units and
for tracing the electrical cables and connec-

Deluxe seat and battery bax covers removed

Illust.25A

for servicing the battery (12-volt system).

25

ELECTRICAL SYSTEM

Illust. 26

Electrical units and cables an right side

of engine (12-volt system).

When the electrical equipment was installed Remove the spark plugs after every 200 to
at the factory,~he battery-to-ground cable 300 hours of operation for cleaning and check­was left disconnected and taped. Before at- ing the gaps between electrodes. A gap of .023
tempting to start the tractor, make certain inch should be maintained.

that the ground cable is connected.

When making this adjustment, always bend

the outer electrode. Never bend the center

electrode, as it will damage the insulator. If
the gap between the electrodes is too great,
due to improper setting or burning off of the
ends, the engine will misfire and be hard to

start.

Illust.26A

Battery and cables (6-valt system shawn

an International Cub LaBoy Tractor).

Note: on the twelve-volt battery the negative

(-) terminal is the ground and on the six-volt

battery the positive (+) terminal is the ground.

SPARK PLUGS AND CABLES

Note: Remove all dirt from the base of the

spark plug before removing the spark plug.

Checking the spark plug gap.

Illust. 268

26

ELECTRICAL SYSTEM

SPARK PLUGS AND CABLES. Continued

Illust.27

Spark plug wiring. Engine firing order Is 1. 3, 4. 2.

(Magneto shown on the engine.)

Cleaning the Spark Plugs

Sandblasting is the recommended method
of cleaning spark plugs. Never scrape or
clean the insulator with anything which will

scratch the porcelain. Scratched porcelain

allows carbon and dirt to accumulate muchfaster.

Always use a spark plug wrench when re-

moving or replacing plugs. This helps to

prevent cracking the porcelain.

Screw the spark plugs into the cylinder
head, using a new copper gasket with each one.
Do not tighten more than enough to compressthe

gasket to seal the plug and assure a good
heat ~ransfer between the plug and the cylin­der head. Torque the spark plugs to 34 foot-

pounds torque. If a torque wrench is not avail-

able, tighten the plug 1/2 to 3/4 turns past
finger tight. Replace defective plugs with newplugs.

MAGNETO

Greasing the Breaker Mechanism and Checking the Points

(1Iust.27A

Adjusting the breake, points.

It is important that the breaker chamber be

kept clean, as oil on the breaker points willcause

rapid burning. Inspect the breaker

chamber after every 250 hours of operation,to

assure that it is clean. To reach the breaker
mechanism, remove the distributor cap, and
crank the engine slowly until end I'BI' of the
distributor rotor arm point~ toward the No. I
terminal on the distributor cap. and the im-

pulse coupling just trips. Take off the distrib-

utor body by removing three screws I'A'I(1IIust.28).

See that the points are in good con­dition and have the proper clearance. If the
chamber is clean, no attention is necessary
other than checking the clearance of the points,
but if the chamber is dirty. all parts must bethoroughly

cleaned.

Do not crank the engine while distributor

body is removed or it might be necessary to

retime the magneto to the engine.

Remove the breaker arm from the chamberand

clean all parts. Inspect the breaker points

and, if necessary, dress them with a sharp,fine

file. If the points are worn excessively,replace

both points.

See your International Harvester dealer
for various makes of replacement plugs for
normal or special service. These plugs have

been tested and recommended as best suitedfor

this engine.

If the spark plug cables are removed for
any reason, note the position of each cable
on the distributor cap as shown in Illust. 27.

Fill the recess in the breaker post with IH

High Temperature Grease (21372-D) and pack

a small quantity of the same grease in back ofthe

breaker arm rubbing block (1IIusts. 27A and 28).See

your International Harvester dealer for

the proper grease to use.

Replace the breaker arm and be sure thepoints

line up when the breaker arm is in place.

27

MAGNETO. Continued

ELECTRICAL SYSTEM

Illust. 28

Magneto disassembled.

Greasing the Breaker Mechani sm and Checking the

Points. Continued

Check the opening between the breaker points

(1IIust.27A.) with a feeler gauge. The point open­ing should be .013 inch when the rubbing block
is on the high part of the cam. If the opening is
not correct, adjust it by loosening the screw
holding the adjustable point (1IIust. 27A.) and mov­ing the point up or down until the gauge slips

snugly into the opening. After the proper ad-

justment has been made, tighten the screw.

With the engine on the top dead center of

the No. 1 firing stroke, turn the distributor

rotor until end "B" of the distributor rotor

arm points to the No. 1 terminal on tfie dis-

tributor cap. Place the distributor body on the
magneto and be sure the rotor shaft enters the

"D" shaped hole in the magneto rotor pinion.
Be sure the gasket is in place and tighten three

screws "A" (1IIust. 28). Replace the distributor cap.

Greasing the Distributor Gear

After every 2,000 hours of operation or at

least every year, the distributor gear and

distributor gear chamber should be cleaned and
repacked with 1H Magneto Ball Bearing Grease

(359 766 R91). We recommend this be done by
your International Harvester dealer.

Distributor Cap

Every three or four months, remove the
distributor cap and examine the inside. If any
dust, moisture or oil deposits are present,

thoroughly clean and wipe dry. To assure long
life of the distributor, care must also be taken
to keep the three small ventilator holes in the
bottom of the distributor cap open at all times.

Also see that the distributor rotor is kept

clean.

If the distributor cap terminal nipples are

removed, be sure that the terminals and coil

cover terminals are clean and dry.

The magneto is equipped with these nipples
to prevent any external electrical leakage
when the tractor is operating under adverse

conditions.

Magneto Impulse Coupling and Magneto Drive Chamber

When the engine is hand-cranked, the im-

pluse coupling should trip (click) twice for

each revolution of the engine. Failure to do so

indicates the need of cleaning or service.

Remove the magneto as described below.

Hold the magneto at an angle of approximately

45 degrees, and flush the impulse coupling and

magneto drive chamber with kerosene. During
warm weather, oil the impulse coupling lib-

erally with light oil, such as cream separator
or sewing machine oil. Do not use oil during

cold weather (below +10 degrees F.). Flushing
with kerosene is all that is required.

If it is necessary to remove the impulse

coupling from the magneto for cleaning or

service, we recommend that this be done by
your International Harvester dealer.

28

MAGNETO. Continued

Removing the Magneto

ELECTRICAL SYSTEM

!llust. 29

Removing the mogneto.

1. Disconnect switch cable "A" (1IIust.29) by

removing the nut and lock washer attaching the
cable to the magneto terminal.

2. Pullout cable "B" from coil cover "C"

and remove the distributor cap.

3. Loosen the nut holding magneto mounting

clip "D" and remove cap screw "E". The mag-

neto assembly can then be removed. See Illust. 29.

Installing and Timing the Magneto to the Engine

1. Crank the engine until the No.1 piston

(the piston next to the radiator) is on the top

dead center of the compression stroke. The
compression stroke can be determined by re­moving the No.1 spark plug. placing the thumb

over the opening. and cranking the engine until

an outward pressure is felt. Continue cranking

slowly until the top dead center mark (second
notch on the back flange of the fan drive pulley
at the left side of the engine) is in line with
pointer on crankcase front cover. S- Illust. 298.
Both intake and exhaust valves will now be

closed.

Illust. 29A

Magneto wiring (clockwise rotation).

Firing order 1,3,4,2.

3. Assemble the magneto on the engine,

making sure that the lugs on the impulse cou­pling engage in the slots on the magneto drive
coupling. (Assemble the magneto so that the

top is as close to the crankcase as possible.)

4. Insert magneto mounting bolt "Ell loosely
in the magneto flange, just enough to hold the
magneto in place. Then crank the engine one
complete revolution to the next top dead center.

Now pull the upper part of the magneto away
from the engine until the impulse coupling justtrips.

2. Turn the magneto impulse coupling (1IIust.

30), in a counterclockwise direction (as viewed

from the coupling end) until end "B'I of the dis­tributor rotor arm points toward the No. 1
terminal on the distributor cap. See Illust. 28.

Then replace the distributor cap.

Notches on the fan drive pulley and the timing pointer.

Illust. 298

2.9

ELECTRICAL SYSTEM

DISTRIBUTOR AND COIL UNITMAGNETO. Continued

Installing and Timing the Magneto to the Engine

.Continued

1(lust. 30

Magneto removed showing Impulse coupling.

Greasing the Breaker Mechanism and Checking the Paints

Illust. 30A

Adlusting the breaker paints.

5. Tighten mounting clip nut "D" and bolt

"E" (1IIust. 29) securely. If the spark plug cables
have been removed for any reason, attach the
cables to the engine and magneto. Start by con­necting the No. I cylinder spark plug to the

socket marked 1'1" on the distributor cap In

Illust.27). Then connect the No.3 socket with
the No.3 cylinder; next the No.4 socket with
the No.4 cylinder, and last, the No.2 socket

with the No.2 cylinder. See Illusts. 27 and 29A.

It is important that the breaker chamber be

kept clean because oil on the breaker points

will cause rapid burning. Remove the distri­butor cap, distributor rotor, and the breaker

cover for breaker chamber inspection. See Illust.
30A. Care should be taken, when removing the
breaker cover, to keep dirt from entering the
breaker chamber. Be sure the chamber is

clean and that the breaker points are in good

condition and have the proper opening.

6. Connect the switch cable to the magneto

terminal. S.. "A", Illust. 29. Never use emery cloth or sandpaper to

clean the points. To dress the points. use a

sharp fine file. If the points are worn exces-

7. To check the timing, crank the engine

sively. replace both points.

slowly until the top dead center of the No.1
cylinder is reached; at this time the impulse
coupling should just trip. Never time before

top dead center.

Fill the recess in the breaker post with IH

High Temperature Grease (21372-D) and pack

8. The magneto is now correctly wired and

timed.

9. Push cable "B" back into the socket in

the coil cover. See Illust. 29A.

a small quantity of the same grease iIJ back of
the breaker arm rubbing block and apply a

light coating of the same grease on the lobes
and flats of the breaker cam. See Illusts. 30A and 31.
See your International Harvester dealer.

30

ELECTRICAL SYSTEM

DISTRIBUTOR AND COIL UNIT. Continued

Greasing the Breaker Mechanism and Checking the P.oints

.Continued

Distributor partially disossembled for servicing.

Check the condition of the breaker points

for build-up or lip formation. If present, the

points must be dressed before the point open-

ing can be checked or set. Check the opening
between the breaker points with a feeler gauge
as shown in Illust. 30A. The point opening should
be .020 inch when the rubbing block is on the
high part of the cam. If the opening is not

correct, adjust it by loosening the screw hold­ing the adjustable point. Then move the point
toward or away from the point on the breaker

arm until the gauge slips snugly into the open­ing. After the adjustment has been made,

tighten the screw.

Distributor Cap

Every three or four months, remove the
distributor cap and examine the inside. If any
dust, moisture, or oil deposits are present,
thoroughly clean and wipe dry. Also see that

the distributor rotor is kept clean.

Illust.31

If the spark plug cables have been removed

for any reason, attach the cables to the spark

plugs and to the terminal sockets of the dis-

tributor cap in the following order: The No. I

cylinder spark plug cable to'the socket marked

"l" in Illust.31A. Then, going around the dis-

tributor cap in a clockwise direction, attach

the cable from the No.3 spark plug to the

next or second socket, the cable from the No.
4 spark plug to the next or third socket, and

the cable from the No.2 spark plug to the

fourth or last socket. Assemble the secondary

cable "A" in the distributor cap. See Illust. 31A.

If the terminal nipples are removed, be
sure the distributor cap terminals and coil
terminal are clean and dry. The distributor

is equipped with these nipples to prevent any

external electrical leakage when the tractor

is operating under adverse conditions.

31

Distributor wiring ond lubrication.

Illust. 31A

POWER TIMING LIGHT

ELECTRICAL SYSTEM

adjustment or attention. If the regulator failsto

operate correctly, see your International

Harvester dealer.

POLARIZING THE GENERATOR

If the generator or the regulator has been
removed or the leads disconnected, the gener­ator should be repolarized. After the leadshave

been reconnected, but before the engine

is started, proceed as follows:

Notches on the Eon drive pulley and the timing pointer.

Illust. 32

A final check and adjustment of the ignition

should be made with a neon-type flashing

timing light synchronized to the ignition sys-

tem and directed at the timing mark on the
rear flange of the crankcase fan drive pulley.

tery terminal is the negative (-) terminal (on

the twelve-volt system) or the positive (+) ter-

minal (on the six-volt system) momentarily

connect a jumper lead between the "BAT" and
the "GEN" terminals of the regulator. This
allows a momentary surge of current to flow

through the generator which correctly polarizes
it. Reversed polarity may result in vibration,arcing.

See your International Harvester dealer for
this service.

IGNITION COIL

GENERATOR BELT TENSION

The ignition coil does not require special

service other than to keep all terminals andconnections

clean and tight.

ator belts. To check, adjust, or replace the

bel ts, refer to pages 23 and 24.

AND REGULATOR

The generator supplies current to keep

the battery in a charged condition, replacing
the energy consumed by the cranking motor
and lights. It is hinge-mounted on the right

side of the engine crankcase and is driven by
a V -belt from the fan pulley.

The generator charging rate is controlled
by a voltage regulator which controls the gen­erator output, thereby maintaining a satis-

factory charging rate, and prevents overcharg-

ing the battery under varying temperatures
and operating conditions. It should not require

HEADLIGHTS

especially developed for tractor operations.
The parts are so constructed that the filament,
reflector, and lens are all assembled in a
unit permanently sealed against dirt, moisture,

and corrosion. If a filament burns out or a lens

breaks, the complete unit must be replaced.

See your International Harvester dealer.

After making certain that the grounded bat-

and burning of the relay contact points.

The tractors have separate fan and gener-

The headlights are sealed-beam lights

GENERATOR

32

ELECTRICAL SYSTEM

COMBINATION REAR LIGHT AND TAILLIGHT

The combination rear light and taillight is

turned on by the lighting switch on the instru-

ment panel and gives you a-choice of red as a
taillight for high,way use or white as a rear
light for field use. Should a lens break, or a

filament burn out, the complete sealed beam

unit must be replaced. See your International
Harvester dealer. To replace the taillight
lamp, remove the sealed beam unit and
replace the taillight lamp with a 15 candle
power lamp (6-volt, No. 454 493 or 12-volt,

No. 455 590).

TAilLIGHT

FUSE

A cartridge-type fuse is located in the fusehousing.

If a short circuit occurs in the light­ing circuit, the fuse will burn out and break
the circuit, preventing damage to the electri-

cal system.

It is important to use the same capacity

fuse for replacement. See "Specifications II

on page 75. If the lights fail, check the fuse. If

the fuse continually burns out, check the elec-

trical wiring for short circuits.

To install a new fuse, unscrew the fuse

holder on the instrument panel, pullout the

old fuse and replace it with a new one.

STORAGE BATTERY

Cleaning and Servicing the Battery

Occasionally remove the battery cable and
ground cable, brighten the terminal contact
surface with wire wool, and reassemble. Then
apply a light coat of vaseline or chassis lubri-cant.

Be sure the terminals are clamped
tightly and that the battery is fastened securely
to the battery support. Replace damagedcables.

filler caps open.

Keep the vent holes in the battery

II lust. 33

Taillight (6-valt system).

To replace the taillight lamp remove the

red lens from the taillight and replace defec-

tive lamp with a new 3 candle power lamp

(6-volt, No. 142 303 or 12-volt, No. 142 450).

WARNING LIGHT

A flashing warning light is located at the

left rear side of the tractor. This light is for

use on public highways to warn operators of

other vehicles that they are approaching a

slow moving vehicle.

Tractors with Electric Starting and Warning Light:

The light will automatically flash whenever the
lighting switch is in the lION" position.

Tractors with Electric Starting and Lighting: The
light will automatically flash whenever the red
taillight is "ON".

If local laws do not approve the use of a

flashing light, remove the two-unit multiple

connector from the flasher unit and connect

the 6-inch jumper to the two-unit connector.

This will provide a steady light.

Liquid Level

Check the battery at least once a month for
water level. If the battery is in need of
charging, it should be given immediate atten-

tion. Keeping the battery fully charged not

only adds to its life but makes it available for

instant use when needed.

The electrolyte (acid and water) in each
cell should be at the proper level at all times

to prevent battery failure. When the electro-

lyte is below this level, pure, distilled water

should be added.

Acid or electrolyte should never be added

except by a skilled battery man. tInder no

circumstances add any special battery "dopes",

solutions, or powders.

A Cautian! Electric storage batteries give

off highly inflammable hydrogen gas

when charging and continue to do so for

some time after receiving a steady charge.

A Cautian! Do not under any circumstances

allow an electric spark or an open

flame near the battery. Do not lay tools
across battery terminals as this may result in
a spark or short circuit which may cause an
explosion. Be careful to avoid spilling any
electrolyte on hands or clothing.

33

ELECTRICAL SYSTEM

STORAGE BATTERY. Continued

Liquid Level -Continued

For dependable battery service see your

International Harvester dealer.

Specific Gravity

The specific gravity of the electrolyte
indicates the relative condition of the battery
charge and warns when it may be necessary to

recharge the battery.

A-30612

Illust.34

Taking a hydrameter reading af electrolyte in the battery

(l2-volt shown).

Inspect the battery once every two weeks to

maintain the correct specific gravity. The
specific gravity of a fully char~ed battery is

1.255 to 1.270 corrected to +80 F. (liquid

temperature). A specific gravity reading of at
least 1.230 corrected to +80oF. should be
maintained. Never allow the battery to fall

below 1.230.

Example No.2
Hydrometer reading. 1.255
Electrolyte temperature. +lOOoF.

Add .008 Sp. Gr. (.004x2)

Corrected Sp. Gr. is. 1.263

Use Ccn accurate hydrometer when testing
for specific gravity. Readings should not be
taken immediately after adding water. Allcells

should show approximately the same

specific gravity reading. Wide variationsindicate

something is wrong.

Weather Operation

It is especially important to keep the bat­tery close to full charge for cold weatheroperation.

Add water to the battery in freezingtemperatures

only when the tractor is to oper-ate

for several hours, to thoroughly mix the
water and electrolyte, or damage to the battery
will result from the water freezing.

The electrolyte of a battery in various

stages of charge will start to freeze at tem-peratures

indicated below:

Specific GraviJY Freezing Temperature

(Corrected to +SO F.) Degrees Fahrenheit

1.265 SOoF.

1.220 30oF.

1.210 20oF.

1.lSO lOoF.

1.160 OoF.

1.140 +lOoF.

1.100 +20oF.

1.000 +30oF.

The temperatures shown indicate the ap­proximate points at which the first ice crys­tals begin to appear in the solution. The solu-

tion does not freeze solid until a lower tem-perature

is reached.

A battery three-fourths charged is in no

danger of damage from freezing. Therefore
keep the battery better than three-fourths
charged, especially during winter weather.

If your tractor is not to be operated for

some time during the winter months, it is

advisable to remove the battery and store it

in a cool, dry place above freezing (+32OF .).Place

the battery on a rack or bench.

The specific gravity reading will vary withthe

temperature of the electrolyte. For read-ings

taken at any temperature other than +800F.,

a temperature correction must be applied.This

is done by adding .004 specific gravity
for every 100 above +800F., and bJ subtracting
.004 specific gravity for every 10 below+800F.

Example No. 1Hydrometer

reading. Electrolyte temperature. Subtract .024 Sp. Gr. Corrected Sp. Gr. is.

Cold

~

34

1.270

+20oF.

.004x6)

1.246

Ground Coble

When replacing a battery, make certain

that the ground cable is connected to the nega-tive

(-) terminal (on the twelve-volt battery)

or to the positive (+) terminal (on the six-voltbattery).

Note: Before working on any part of the

electrical system, disconnect the batteryground

cable from the battery terminal. Do

not reconnect it until all electrical work hasbeen

,-:ompleted. This will prevent shortingand

causing damage to any of the electricalunits.

ELECTRICAL SYSTEM

2"".-

31,

32 '

\

Negative

terminal

, "===I~

~- 0, 1

" :

.,

~

2

31 ~

Rear view of the

battery box

32

19

18-

31.

\

5

I) 0

Tape--

a

27J

32'[261

I

2"1

~

/'

I'

To mogneto /

ignition switch A

,/

/

2

~~-;id;~~"",,-~

of the tractor

15 25

20

~

, .

-17

-22

-23

16

;'

Wiring diagram of

the instrument panel

29.

27- Front view showing 30

headlight connections

To generator "F", .,

"F"I

Voltage regulator "L" terminal

connections "GEN" terminal

"A"tenninal

Tape (9 8 13 ~7 28 24

19 7~12

10 11

~\==:==:~\

9.

~ '26 12. /'h "\'--Tofuse housing

20
29

/

7.

30

Headlight cables grounded on

the generator rear bracket bolt

20

..-!..

rogenerator "A" terminal

"BAr' terminal

13

Ref.

No.

1

..

Z
3
4
5

6

7

8

q

1011

12
13

14
15

16

17
18

Electric starting and lighting wiring diagram

far tractars equipped with magneta

ignitilln (12.volt electrical system).

Description

Cable -battery to starting switch
Cable harness -rear light
Cable -taillight to connector

Taillight
Battery

Strap -battery to ground (ground on

battery box rear left mounting bolt)

Cable harness

Cable -generator "F" terminal to

regulator "F" terminal cable.

Cable -generator "A" terminal to

regulator "GEN" terminal

Cranking motor

Magneto

Voltage regulatorGenerator
Charge indicator

Lighting switch

Fuse housing

Magneto ignition switch
Cable -magneto ignition switch to~neto

Illust. 35

Ref.

No.

19
2021

22
23
24

25

2.6

27
28

29

30
31

32

Description

Cable -starting switch to cranking motor
Headlights

Cable -starting switch to charge indicator

Starting switch

Cable -fuse housing to lighting switch

Connector body -assemble to headlight

cables

Cable -regulator "BAT" terminal to

charge indicator -gray

Cable -regulator "L" terminal to fuse

housing cable -light green

Cable -lighting switch to right headlight

-violet with white tracer
Cable -headlight to headlight -violet
Cable -right headlight to ground -pink
Cable -left headlight to ground -pink

with white tracer

Cable -lighting switch "TL" terminal to

taillight -black

Cable -lighting switch "RL" terminal to

connector -white

6.

18

~u7~26

2.~

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1

It,

8-1;"'Yape

f

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35

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ELECTRICAL SYSTEM

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ELECTRICAL SYSTEM

Index to reference numbers in II lust. 36

Ref.No.

2
~

4

5

8

9

1011lZ

13

Description

Cable ~ battery to starting switch

Battery
Strap ~ battery to ground (ground on

battery box left rear mounting bolt)

Cable harness

Cable -generator I'F" terminal to

regulator "F" terminal

Cable -generator "A'I terminal to

regulator I'GEN" terminal

Generator

Voltage regulator

Battery ignition unit
Cranking motor
Charge indicator

Key ignition switch
Cable -starting switch to charge

indicator positive (+) terminal

Starting switch14

Ref.

15
16

17

18

19

20

21
22

23

24

25
26

27

!No.

Cable -starting switch to cranking motor
Cable -regulator "BAT" terminal to

charge indicator negative (-) terminal -

gray

Cable -regulator "L'I terminal to key

ignition switch -light green

Cable -key ignition switch to ignition

coil positive (+) terminal -black

Lighting switch

Description

Fuse housing

Cable -fuse housing to lighting switch
Cable -rear light

Flashing warning light

Flasher unit

Cable -flashing warning light
Cable -key ignition switch to fuse housing

Cable -flashing warning light to lighting

switch -black

Ref.

No.

2

3

4

5

6

7

8

Index to reference numbers in Illust. 38.

Description

Cable harness -rear light

Cable -lighting switch "RL" terminal

to line connector -natural

Cable -lighting switch "T L" terminal

to line connector -black

Cable -taillight

Taillight

Lighting switch
Cable -fuse housing to lighting switch

"BAT" terminal

Cable -fuse housing to ignition switch

"IGN" terminal -light green

37

Ref.

9

10

11
12
13

14
15
16

!No.

housing

Cable -lighting switch "HL" terminal to

right headlight -violetHeadlights

Cable harness

Cable -left headlight to ground -pink

with white tracer
Cable -right headlight to ground -pink
Cable -headlight to headlight -violet

Generator

Description

Fuse

ELECTRICAL SYSTEM

Top view of battery box and taillight

-"'l

<

I/\~\ .ry \

""~ '~

'~~~ \.~"

~~~, .

~.

.., ".

., . .

",\ ,~-~' "1 -

,...

1

f4

-II.. -='_~, 12~

Left side view

..I

.._~~..~

'-.,- ~-- ,j " ~

---..

4

7

~ 16 " ..~/

- ---J " ~J I

i 14 13

Headlight cables grounded on

the generator rear bracket bolt

A-80356

lc

.:_.J

Rear view of battery box

12

4

Front view showing headlight connections

Illust.38

Electric lighting wiring diagram for tractor!

equipped with battery ignition (12.volt

electrical system).

38

13

.--

~~~~~10~~~~

'--".

~2'

ELECTRICAL SYSTEM

Ref.

No.

1

2

3

4

5

6

7

8

9
1011
12

13

14
15
16

17

18

Electric starting and lighting wiring diagram for tractors equipped with magneto ignitions

(6.volt electrical system).

Description

Cable -battery to starting switch
Cable harness -rear light
Cable -taillight to junction block

Taillight

Battery

Cable -battery to ground. Ground on

bolt through battery box side

Cable harness

Cable -generator "F" terminal to

regulator "F" terminal cable

Cable -generator "A" terminal to

regulator "GEN" terminal

Cranking motor

Magneto

Voltage regulator

Generator

Charge indicator
Lighting switch
Fuse housing

Junction block~ble

~neto ig~~?n switch to

Illust. 39

Ref.

No.

22

39

19

Headlights
Magneto ignition switch

2021

23

24

Cable -regulator I'BA TII terminal to

charge indicator -gray

Cable -regulator I'L'I terminal to junction

block cable -light green

Cable -starting switch to charge indica-

tor -brown

Cable -orange -taped at both ends
Cables -lighting switch to headlights -

25

black

Cable -headlight to ground -pink

26

Cable -I'RL'I terminal to rear light taped

27
28

29

30

31

32

at rear light -red
Cable -fuse housing to lighting switch
Cable -fuse housing to junction block
Cable -junction block to ground -pink

Cable -lighting switch to junction block -

black

Cable -dark green taped at both ends

Description

ELECTRICAL SYSTEM

Ref.1

No.1

Description

Electric starting wiring diagram for

tractors equipped with battery ignition

Illust.40

(6.volt electrical system).

ffie f .

No.

1l.

Battery ignition switch

13

Cable -regulator "BAT" terminal to

charge indicator positive terminal -gray

14

(.-able -regulator "L" terminal to battery

ignition switch cable -light green

15

Cable -starting switch to charge indicator

negative terminal -brown

~able -ignition switch to coil negative

terminal -orange

17

Cables -taped

18

~able -headlight to ground -pink

19

Cable line connector to horn -taped -

dark green

View of voltage regulator

showing connections

8-12888

Description

.j

16

40

ELECTRICAL SYSTEM

Ref.No.

1

Cable harness -rear light

2

Cable -"RL" terminal to rear light taped
Cable -junction block to ground bolt -

4

Junction block

5

6

Cable"" taillight to junction block

7

Cable -junction block to lighting switch

8

Lighting switch
Cables -lighting switch "HL" terminal to

9

Rear view

showing taillight 8-12887

Description

at rear light -red

pink

Taillight

"TL" terminal -black

headlight connectors

Electric lighting wiring diagram for

tractors equipped with battery ignition

(6-volt electrical system).

1No.

10

Fuse housing

11

Cable -fuse housing to lighting switch

I'BAT" terminal -long

Cable -fuse housing to "IGN'I switch

terminal -short

13

Headlight

14

Line connector

15

Cables -harness to headlight cable

Illust.41

16

assembly

Headlight cable assembly

Description

Ref.

312

41

CYLINDER HEAD GASKET

Adjusting the Clearance

Check the tightness of the cylinder head
bolts after the first 50 hours of engine opera­tion for a new tractor and 50 hours after in-

stalling a new cylinder head gasket. The bolts
should be tightened to from 45 to 50 foot-

pounds torque.

For most satisfactory results in tightening
the cylinder head after installing the cylinder
head gasket, tighten down all the cylinder head
bolts fairly snug, starting with the row in the

center, then going to the others. Retighten in

the same order, giving each bolt a fraction of

a turn at a time. Continue this until all bolts
are tight. Do not screw one bolt down perfectly

tight and then go on to the next as you will not
obtain an even pressure on the gasket in thismanner.

After replacing the cylinder head, it isnecessary

to insure against leaks by retighten.
ing the bolts after the engine has been operat­ing and the water jacket has become thoroughlyheated.

CRANKSHAFT BEARINGS, PISTONS, AND RINGS

We cannot impress too strongly the neces-

sity of having your International Harvester

dealer do the work of replacing the connecting-

rod bearings, crankshaft bearings, pistons
and rings, and reconditioning the valves.

VALVE CLEARANCE ADJUSTMENT

1. To safeguard against accidentally starting

the engine when checking the valve clearance,

remove cable liB" from the coil cover on the
magneto (Illusts. 29 and 29A) or remove distributor-

to-coil cable I'A'I from the socket on the coil of
the battery ignition unit. See "lust. 31A.

z. Remove the valve cover from the left side

of the crankcase.

3. Remove the spark plug from the No. 1

cylinder (the cylinder next to the radiator).

4. Place your thwnb over the spark plug
opening and slowly crank the engine until an
outward pressure is felt. (Pressure indicates
that the No. 1 piston is moving toward the top
dead center of the compression stroke. ) Con­tinue cranking slowly until the top dead center
mark (second notch on the back flange of the
fan drive pulley at the left side of the engine)
is in line with the timing pointer in the front
crankcase cover. See !llust. 32. Both valves are
now closed on the compression stroke of theNo.

1 cylinder.

5. Use two thin wrenches when adjusting the

valve clearance. See Illust. 42. Use the lower

wrench to hold the tappet and the upper wrench

to raise or lower the tappet adjusting screw. A
gauge of .Ol5-inch thickness should slip snugly

between the valve stem and the tappet adjusting

screw.

6. Starting at the front of the engine, adjust
valves No. 1,2,3, and 5. Then crank the
engine one complete revolution and adjust
valves No.4, 6, 7, and 8.

Check the valve clearance after every 500
hours of operation and adjust the clearance if
necessary. A clearance of .015 inch, measured

when the valves are closed and the engine is
cold, is necessary between the end of the tap­pet adjusting screw and the valve stems.

When engine valves are equipped with pos-

itive-action valve rotators, check the valve

clearance after 50 hours of operation, and

after every 150 hours thereafter until the

clearance remains the same between twochecks.

All valves can be adjusted accurately by
cranking the engine only twice. Four valves
are adjusted when the No. I piston is at TDC

(compression) and the 'remaining four valves

are adjusted when the No.4 piston is at TDC
(compression).

Adjusting and checking valve clearance.

Illust.42

42

MINOR ENGINE SERVICE OPERATIONS

VALVE CLEARANCE ADJUSTMENT -Continued

Adlusting the Clearance -Continued

7. Replace the valve cover. Check to see
that the valve cover gasket makes an oiltight
seal with the crankcase. Replace the gasket if

necessary.

8. Replace magneto cable lIB" (Illusts. 29 and

29A) or distributor-to-coil cable f'A" (Illust. 31A)

into the socket from which it was removed.

Note: Be accurate -use a feeler gauge for

checking the valve clearance.

TACHOMETER DRIVE UNIT

Illust.43

Battery ignition unit and tachometer drive.

If for any reason the drive gear housing

must be removed, proceed as follows:

Remove the two screws and the tachometer
drive housing retainer plate. Then remove the
housing and drive gear assembly.

If the drive gear housing is disassembled

for any reason, inspect the drive gear and re-

place it with a new one, if necessary. Before

reassembly, apply ill Magneto Ball Bearing

Grease (359 766 R9l) or #2 multi-purpose

lithium grease to the space and bearing sur-

faces shown in Illust. 43A.

Assemble the tachometer drive gear and

housing, complete with the gasket, into the

distributor drive housing (1IIust. 43). Assemble
the retainer plate, screws, and lock washer s
and tighten them securely.

To prevent failures of the tachometer drive
shaft and tachometer drive gear, it is impor­tant for the drive shaft to follow a smooth even
path from the distributor drive housing to the

tachometer. No bend in the shaft should be

sharper than a S-inch radius.

Tachometer drive installation diagram.

Illust. 43A

4-

Front wheel with di sc flange turned in.

Illust.44

Front wheel with disc flange turned out.

Illust. 44A

The front wheels are steel disc wheels with

attached rims for 4.00-12 and 4. 00-15, 4-ply

tractor-type tires.

The wheels are provided with mounting holes

for the addition of cast iron wheel weights.

Each wheel is mounted on the hub with five

special bolts and may be mounted with the disc

flange turned in or out to obtain differenttreads.

The hubs rotate on tapered roller bearings.

An oil seal and felt washer are used at the

inner end of the hubs.

Note: The front wheels must not be mounted
with the disc flanges turned out when the trac­tor is carrying heavy front end weight.

Check the hub bolts for tightne s s every

month or after every 250 hours of operation.

Keep them tightened securely.

ADJUSTING THE FRONT WHEEL TREAD WIDTHS

International Cub Tractor

The front wheels can be adjusted to treads

of40-5/8-inches or 46-3/8-inches. The wheels
are in the 40-5/8-inch tread position when the

disc flanges are turned in. See Jllust. 44. To ob­tain the 46-3/8-inch tread. reverse the wheels
on the hubs so that the disc flanges are turned
out. See Illust. 44A.

International Cub La-Boy Tractor

The front wheels can be adjusted to treads
of 43-inches or 49-inches. The wheels are in
the 43-inch tread position when the disc flanges
are turned in. See Illust. 44. To obtain the 49-inch
tread. reverse the wheels on the hubs 50 that
the disc flanges are turned out. See 'Ilust. 44A.

ADJUSTABLE WIDE-TREAD FRONT AXLE

International Cub Tractor

Tractors equipped with an adjustable front

axle: The front wheels can be set at treads of

40-5/8.44-5/8. 52-5/8. and 56-5/8-inches to

track with respective rear wheel tread posi-

tions.

International Cub Lo-Boy Tractor

Tractors equipped with an adjustable front

axle: The front wheels can be set at treads of39.

43. 47. 51. and 55-inches to track with

respective rear wheel tread positions.

44

FRONT WHEELS

ADJUSTABLE WIDE-TREAD FRONT AXLE -Continued Adjusting the Toe-in

Adjusting the Tread Widths

Raise the front end of the tractor.

2. Loosen the bolts holding axle extension

clamps "A".

3. Pull the cotter pins and remove axle
extension clamp pins "B'I. Remove the bolts
from tie rod clamps lICIt.

4. Pull the axle extensions out an equal

distance on both sides to the desired tread

position and move the tie rods to correspond.

5. Replace axle extension clamp pins IIB'I
in the holes selected and tighten the clamps.

Also replace and tighten the bolts in the tie

rod clamps.

The front wheels should have 1/4 inch

(: 1/16-inch) toe-in (1/4-inch closer in front

than in the rear). To check the toe-in, place
chalk marks at point I'G" on each rim at hub

height, Illust. 45, and measure the distance be­tween them. Move the tractor forward a dis­tance equal to one-half revolution of the front
wheels. The chalk marks should now be at

point "F". The measurements between points

IIFII should be 1/4-inch (: 1/16-inch) greater

than at IIG".

To adjust the "toe-in", disconnect steering
knuckle arms "E" at lID". Loosen the lock nuts
and turn tie rod ends "D" in or out as required.

Be sure to make the arm adjustments

equal.

Illust.45

Adjustable front axle showing variable wheel treads.

45

The rear wheels are steel disc wheels with

demountable rims for tractor-type agricul-

tural tread tires and are provided with mount-

ing holes for the addition of cast-iron wheel

weights.

The following rear wheel rims are avail-able:

wheel treads described in the following para-graphs.

ADJUSTING THE TREAD WIDTHS

The rear wheels can be set in five differenttread

positions of 40, 44, 48, 52 or 56 inchesto

suit various crop spacings.

Rear wheel rim W5-30 for use with 7.2-30,

4-ply pneumatic tires.

Rear wheel rim W7-24 for use with 8.3-24,

4-ply and 9.5-24, 4-ply pneumatic tires.

The W5-30 and W7-24 rims are furnished

with the tractor as ordered.

Each wheel is mounted on the axle flange
with five special bolts and may be mounted
with the disc flange turned in or out to obtain,
with the different rim positions, the various

The desired tread position can be obtained

by reversing the rear wheel discs and by at-taching

the rims to the discs in different posi-

tions as shown in Illusts. 46, 46A, and 47.

Note: When the rear wheel discs or rims

are reversed, make sure that the tire tread

will rotate in the correct direction as shown
by the arrow on the side of the tires. See Illusts.

46 and 46A.

When assembling discs or rims, tighten all

bolts securely. The rear wheel rim bolts andthe

rear wheel hub bolts should be kept tight-

ened securely.

Rear wheel with disc flange turned in.

Illust. 46

Rear wheel with disc flange turned out.

Illust.46A

46

REAR WHEELS

Rear wheel tread positions.

1(lust.47

47

FRONT WHEEL WEIGHTS (One-Piece)

The one -piece front wheel weights weigh
approximately 26 pounds each, and either one
or two can be attached to the outside of each
front wheel. To increase steerability, front
wheel weights, are recommended for use as
a front end counterbalance whenever heavy

loads are superimposed on the drawbar, or

when heavy equipment is to be mounted on

the rear end of the tractor.

Thefirst set of front wheel weights includes
a set of two weights and four 1/2NC x 1-3/4­inch bolts, nuts and lock washer s for attaching

the weights to the front wheels at II A'I (1IIust. 48).

If additional weight is desired a second set

of weights can be attached to the first weights

by using four 1/2NC x 3-3/8-inch bolts, nuts
and lock washers at lIB" (1IIust. 48A).

First front wheel weight mounted on wheel.

FRONT WHEEL WEIGHTS (Two-Piece)

Illust.48

First and second front wheel weights mounted on wheel.

Illust.48A

Illust.488

Two-piece front whee! weights.

48

FRONT WHEEL WEIGHTS (Two-Piece) -Continued

Two-piece front wheel weights are available

to provide additional weight for the front end ofthe

tractor when operating over hilly ground

or when a scoop or scraper is being used onthe

150 pounds each and either one or two can be
attached to each rear wheel to reduce slippage
and tire wear and increase traction of rubbertired

rear of the tractor. These weights are
mounted on the inside of each wheel. Each half
weighs approximately 25 pounds. A set ofthese

weights can be used either with or with-

out one or two one-piece weights attached onthe

outside of the wheel. See Illust. 488.

a set of two weights and eight 1/2NC x 3-inch
bolts. nuts and lock washers for attaching the

weights to the rear wheels at II A II (1IIust. 49).

When only a set of two-piece weights is tobe

attached, use eight l/lNC x 3-1/4-inchbolts,

nuts, and lock washers.

of weights can be attached to the fir st weights

by using four 1/2NC x 6-1/4-inch bolts, nuts
and lock washers at "B" (1IIust. 49A).

To mount a set of one-piece weights on the
outside of the front wheels with two-piece
weights on the inside, use eight 1/2NC x 4-1/4-

inch bolts, nuts, and lock washers.

weights, it is necessary to remove two bolts

from each first weight and replace them withthe

If additional weight is desired, a second set
of one -piece weights can be added on the out-

side of the fir st set of one -piece weights, using
eight 1/2NG x 5-3/4-inch bolts, nuts. and lockwashers

shorter bolts in each first weight previously
removed, must be reinstalled.

REAR WHEEL WEIGHTS

The rear wheel weights weigh approximately

tractors.

The first set of rear wheel weights includes

If additional weight is desired a second set

Before attaching the second rear wheel

longer bolts provided with the second weights.

If the second weights are removed, the two

WEIGHTS

Illust. 49

First rear wheel weight mounted on wheel.

First and second rear wheel weights

Illust. 49A

mounted on wheel.

49

Observe the following instructions and rec-

ommendations in order to secure maximum
life and efficient service from the pneumatic
tire s.

CARE OF TIRES

\~

Avoid stumps, stones, deep ruts, and l I

other hazards. Cuts in tires should be re-" -,
paired immediately, as neglect decreases
tire life. Keep the tires free from oil and Illust.50
grease. as both destroy rubber. After using Tire pump, hose, and air gouge.the

tractor for spraying (insect control work). ~: -"

use water to remove any chemicals that may c~~-- -~- be on the tires.

INFLATION

Keep the pneumatic tires properly inflated

to the pressures shown in the tables. Under-

inflation will damage the tire cord body and
may cause the tire to slip on the rim and tear
out the tube valve stem. Overinflation results
in excessive slippage, causing rapid tire

wear.

Check the air pressure once a week with

an accurate low-pressure gauge having one-

pound graduations. Do not allow the air pres­sure to drop below the recommendations.

Always see that the tire valve caps are in

place and are screwed tightly. The caps pre-

vent the loss of air through the valve core,
and keeps loose soil, mud, gravel, snow, and
ice from entering and damaging the valve core

Tires can be inflated with a pressure pump,

hand pump, or a spark plug pump. Spark plug
pumps can be purchased from InternationalHarvester

dealers.

USING THE SPARK PLUG TIRE PUMP

Note: Do not use a diesel engine as the

source of power.

Remove one of the spark plugs from the F-2 Tread!

tractor engine, or any carbureted engine, and 4.00-1~

replace it with pumping element I'A" having 4. OO-IS
Attach one end "BI! of the pump hose to the

pumping element, and other end I'C" to the ,
valve stem of the tire to be inflated.

Start the engine and run it at low speed for

maximum efficiency.

SHIPPING TRACTORS EQUIPPED WITH PNEUMATIC

TIRES

When tractors are transported on a carrier
such as a railroad car or trailer. rear tires
should be inflated up to 30 pounds. Front tires

to the maximum pressures shown in the table.

The higher pressure must be reduced to oper­ating pressure BEFORE the tractor is removed

from the carrier. Inflation pressure should be
as shown in the following table s to make po s -

sible rigid blocking and to prevent bouncing.

OPERATING PRESSURE FOR LOW.PRESSURE

TRACTOR TIRES

Caution! Upon receiving your tractor,

immediately adjust the air pressure in

the tires as indicated in the tables.

Front Tire Loads in Pounds at Various

Underscoring indicates maximum recommended load per tire.

Tire
Size

Tread

---

Tire Code Marking Tire Industry Type

Ithe correct spark plug thread size. See Illust. SO. ---

!4.00-12

Inflation Pressures

Pounds per square inch

Kilograms per square centimeter

F.2 Agricultural

1.1 Rib Implement

44

3.09

520

rn

50

~

~

I-I

~

PNEUMATIC TIRES

OPERATING PRESSURE FOR LOW.PRESSURE

TRACTOR TIRES. Continued

Rear Tire Loads in Pounds at Various

Inflation Pressures

Underscoring indicates maximum recommended load per tire.

Tire Code Marking Tire Industry Type

R.l Agricultural
R.3 lndustrial

When equipment is mounted on the tractor,
the rear wheel tire loads may be increased up
to 20 percent with no increase in inflation (as

indicated in the tables and speeds do not ex­ceed 10 miles per hour). Tire loads should be
calculated to include FULL bins or tanks.

TRACTION AND WEIGHTS

The tractor should not be operated with the

tires improperly inflated. To insure the max-

imum hours of service, watch the tread lugs;
if they wear down too fast, immediately add

more weight to cut down slippage. Check for

high air pressure. Consult your International
Harvester dealer for information.

WHEEL WEIGHTS

The drawbar pull of a tractor can be in­creased by adding cast iron weights to the
driving wheels, and by the use of liquid in thetire

tube s.

The amount of the increase in drawbar pull

by the addition of certain definite weights

varies with the type of soil. When very heavy

weight is required, both liquid and cast ironweights

can be used.

After adding weight to the rear wheels. it
may be necessary to readjust the height of the
drawbar to obtain the correct alignment.

OVERLOADING

Do not overload the tractor tires by mount-

ing implements on the tractor which exceed the
load capacity of the size of the tire s on thetractor.

MOUNTING TIRES ON THE RIM TIRE CHAINS

After mounting a new or old tire on the rim,

inflate it to thirty pounds pressure to seat thetire

bead on the rim flange and to keep the tire

from creeping and shearing off the valve. Then

deflate or inflate the tire to the correct operat­ing pressure.

The brakes consist of external bands that
contract on the brake drums. The brakes are
controlled by foot pedals which can be operated
individually or simultaneously when lockedtogether.

Check the brakes for free movement and

In wet grass or ground conditions, use lug-

type chains. The flexing of the tire and the

creeping of chains will break the mud loose as
the wheel rotates. Note: There is a possibility
of the tire slipping within the chain; to preventthis,

the use of spring-type chain fasteners isrecommended.

The brakes should not drag before they takehold.

The pedals should have a free movement.

by hand. of approximately 7/8-inGh.

BRAKE ADJUSTMENT

equal pressure after every 150 hours of oper­ation until the proper interval is determined
according to usage. Check the free movement
thereafter as required to maintain equal pre s­sure and efficient braking.

To adjust the brakes. jack up the rear end
of the tractor. Remove pin IIAII and loosen lock
nut IIB". See Illust. 52. Turn adjusting yoke "G"
until each wheel drags slightly when turned.

BRAKE ADJUSTMENT. Continued

Illust. 52

Brake pedal adjustments.

BRAKES

Replace pin "A" and tighten lock nut "B'!

after the adjustment has been completed.

It is very important to have the brakes

equalized. To have equalized brakes. both

pedals must have the same amount of free

mo ve ment.

To check the equalization of the brakes,
jack up both rear wheels so they will turn
freely, block the tractor securely and latch the

brake pedals together; then start the engine.
Shift the gears to either third or fourth speed
and engage the clutch; while the wheels are
turning, apply the brakes.

Application of the brakes should slow down

both wheels at the same time and also reduces

the speed of the engine.

If one wheel stops and the other wheel con­tinues to revolve when the brakes are applied,
loosen the adjustment on the wheel that stops
just enough so both wheels stop simultaneously
when the brake s are applied.

The engine is equipped with a spring-loaded,

6-l/2-inch diameter, single plate, dry discclutch.

As a result of normal clutch facing wear,
the free travel between the clutch release
levers and the release bearing is reduced.

Lack of clearance causes overheating of the
clutch, loss of power. and early replacement

of clutch facing.

Check the clutch for free movement after
every 150 hours of operation until the proper
inspection interval is determined according

to usage. Check the free movement thereafter,

as required, to provide proper clearance be­tween the clutch release bearing and the clutch
release levers.

CARE OF THE ENGINE CLUTCH

The engine clutch is de signed so that it 're-

quires a minimum of attention. It is important

however, that a clearance of approximately

lIB-inch be maintained between the engine

clutch release bearing and the engine clutch
release levers. Also, the clutch release shaft
and release bearing should be lubricated at

proper intervals as instructed in the "Lubri-

cation Guide".

ADJUSTING THE ENGINE CLUTCH

The correct free travel can be maintained

by loosening cap screw IIA" (1IIust. 52A) on the
outside of the clutch pedal, and rotating the
slotted lever at I'B" counterclockwise to a

position which will give the l-inch free pedal

travel; then retighten the cap screw.

Illust.52A

Clutch pedal adjustment.

52

ADJUSTING THE ENGINE CLUTCH. Continued

Edge of platform

Ito pedal pad

1/8" ClearanceII

'(

utch

er

""""""" ""I

-

~/,zzzr,

((\~).y'- fitting 5/16/

~ Full lever travel

Hand hale cay

8-4523A

Illust. 53

Clutch adjustments.

Lubricatiay /

IS/~

,

i

Wear

'clutch pilot

bearing

\ailless bushing)

When your tractor is not to be used for
some time, it should be stored in a dry and
protected place. Leaving your tractor out-

doors, exposed to the elements. will result
in materially shortening its life.

Follow the procedure outlined below when
your tractor is placed in storage, and repeat
steps 1, 5, and 8 every six months thereafter.

We also recommend that caution be practiced

in starting an engine that has been in storage.

1. Wash or clean and completely lubricate

he tractor. See the "Lubrication Guide".

2. Store the tractor so the tires are pro-

tected from light. Before storing the tractor

THETRACTOR

clean the tires thoroughly. Jack up the trac-

tor so that the load is off the tires when it is

to be out of service for a long period. If it is

not jacked up, inflate the tires at regular in-

tervals.

3. Run the engine long enough to thoroughly

warm the oil in the crankcase. Then drain the

oil. Remove the oil filter element. (If any evi-

dence of rust is found on the retaining bolt.

clean it thoroughly.) Replace the old filter ele­ment with a new one and flush out any sludge
from the filter base. Refill the crankcase with
fresh oil and run the engine from two to five

minute s.

53

STORING THE TRACTOR

Note: Gum will eventually form in the fuel

tanks, lines, and carburetor if the unit is notused.

Gum in carburetor jets and passages

affects engine starting. Gum can be dissolved

with commercial carburetor cleaner.

4. Drain the fuel from the fuel tank and

carburetor, and clean out the fuel strainerglass

bowl.

5. After the engine has cooled off, remove

the spark plugs and pour one tablespoonful of

SAE- 50 lubricating oil of good quality into each

cylinder. Crank the engine two or three timesto

distribute the oil over the cylinder walls.

Then replace the spark plugs.

Drain and flush the cooling system.

7. Tractors with Magneto: Oil the magneto im-pulse
coupling liberally with very light oil,

such as cream separator or sewing machineoil.

8. Remove the valve cover and slush thevalves,

rocker arms, and push rods with
SAE-50 oil. (If any evidence of rust is found,
remove it before lubricating.) Use a paint
brush to coat the inside of the valve cover
with SAE- 50 lubricating oil. Replace the valvecover.

9. Remove the oil filler breather cap and

oil level gauge. Then plug the oil filler pipe.Also

plug the exhaust pipe.

10. Remove the battery and place it on a

rack or bench in a cool, dry place above freez-

ing (+320 F.). Check the battery at least once

a month for water level and specific gravity.

11. Block the clutch pedal with a wood
block so that the ciutch is disengaged. This
will prevent the clutch facing from sticking tothe

flywheel or clutch pressure plate.

mixture of one-half kerosene and one-half

SAE-IOW engine oil.

4. Remove the spark plugs and pour a mix­ture of one-half gasoline and one-half light
lubricating oil into each cylinder; one ounce

(two tablespoonfuls) per cylinder is enough.

5. Crank the engine rapidly until excess
oil has been blown out of the spark plug holes.
This operation will loosen any tight piston
rings and wash old, gummy oil from the valves

and pistons.

Omit steps 6, 7, and 8 if they were per-

formed before the tractor was stored.

6. Drain the crankcase and flush it out
with kerosene or flushing oil and fill with spec-

ified lubricating oil. See the " Lubrication

Guide".

7. Be sure the lubricating oil filter has a
new element before starting the engine.

8. Clean the air cleaner and refill the oilcup.

9. !nst/all the spark plugs after cleaning and
setting the gaps.

10. Fill the cooling system. Be sure the

cooling system has a rust inhibitor added to it.

11. Fill the fuel tanks.

Caution! Do not accelerate the engine rapidly,

or operate it at high speed immediately after

starting, Also keep the doors wide open or
move the machine outside the storage room
immediately to avoid danger from exhaust gas.

12. Start the engine and let it run slowly.

If a valve is sticking, pour a small quantity ofkerosene

on the valve stem until it is loose.

REMOVING FROM STORAGE

1. Remove the plugs from the crankcasebreather

cap, the breather pipe and the ex-

haust pipe.

2. mstall a fully charged battery and be

sure the proper connections are made. See

Illust.2SA.

3. Remove the valve cover and slush thevalve
and valve operating mechanism with a

6.

13.

Assemble the valve cover.

14. After the engine has been run long

enough to clean the excess oil out of the cylin-ders,

the spark plugs should be removed and

checked for oil fouling. If fouled, clean and

reinstall them in the engine.

15. Remove the block from the clutch pedal.

16. Before driving the tractor, inflate the

tires to the correct operating pressures.

54

When operating the tractor in temperatures

of +32 degrees F. or lower, observe the fol­lowing precautions:

FUEL SYSTEM

If an antifreeze is to be used:

1. Inspect the hose connections. They must

be in good condition both inside and out. Then

tighten all water connections.

Use only a high-test, winter-grade gasoline

for starting, and keep your supply in a closed

container so the more volatile portion does

not evaporate.

Fill the fuel tank at the end of the day's run

to prevent condensation in the tank.

LUBRICATION

Be sure to use lubricant of the correct
viscosity in the engine crankcase as specified
in the "Lubrication Table".

MAGNETO IMPULSE COUPLING (Tractors with Magneto)

For satisfactory starting, it is important
to keep the magneto impulse coupling oiled
liberally. The impulse coupling should be kept
free of dirt and gummy rust formation.

When the engine is hand-cracked, the im­pulse coupling should trip (click) twice for

each revolution of the engine. Failure to do so
may indicate the need for cleaning. Refer to

poges 27 to 30 for further information.

COOLING SYSTEM

When the temperature is likely to be +32

degrees F. or lower, there is danger of the

water freezing in the cooling system.

To prevent this, drain the water from the
cooling system at the end of each run or use
IH permanent type antifreeze.

Draining and Refilling the Cooling System

2. Inspect the fan belt and adjust it, ifnecessary,
to the proper tension. If the belt

is worn, or oil- soaked, install a new one.

3. Drain the cooling system as described

above. Clean it as described on poge 22.

4. Check to be sure that the radiator drain

plug is tightly closed. Then fill the cooling

system, using either of the following proce-dures:

a. Make a solution of the required amount

of IH permanent type antifreeze with the nec-

essary amount of clean water (use soft or rain
water if possible) to fill the cooling system.
Fill the cooling system to a level slightly be­low the bottom of the radiator filler neck, when

equipped with a nonpressure-type radiator cap;

or to a level approximately l-inches below the
top of the filler neck, when equipped with apressure-type

radiator cap.

b. Put the required amount of antifreeze

into the cooling system. Fill the cooling sys-

tem with clean water (use soft or rain water if

possible) to a level slightly below the bottom
of the filler neck, when equipped with a non­pressure-type radiator cap; or to a level ap-

proximately 2-inches below the top of the filler

neck, when equipped with a pressure-type radi-

ator cap. Start the engine and run it until oper-

ating temperature is reached, to allow the anti­freeze and water to mix thoroughly.

5. Check the cooling system for leaks, pay-

ing special attention to the hose connections.

If an antifreeze is not to be used:

1. Remove the radiator drain plug on the

bottom (center) of the radiator.

2. See that the drain is not clogged and that

the water drains completely. Then replace the

radiator drain plug.

Note: Before filling the cooling system in
freezing weather, cover the front of the radia­tor. Have sufficient water available at the

tractor to fill the cooling system (warm water

is prefe rable). Start the engine. then put the

water in immediately. This keeps the water from
freezing during warm-up. Maintain the oper­ating temperature of the engine by uncovering
as much as necessary of the front of the radi-

ator.

Antifreeze Solutions

The use of alcohol as an antifreeze is not

recommended because methanol boils at +148

degrees F. However, if it is necessary to use

alcohol, check the solution frequently to make
certain you have adequate protection for the

prevailing temperature.

Note: Use only one type of antifreeze solu-

tion. Do not mix solutions, as it will be diffi-

cult to determine the exact amount of protec-

tion.

Never use any of the following in the cooling

water as an antifreeze -honey, salt, kerosene,

fuel oil, glucose or sugar, calcium chloride,

or any alkaline solution.

55

Problems and their Probable Cause

If any trouble is experienced, make sure of the cause before attempt­ing to make any adjustments. When making an adjustment, keep in mind
the previous setting in case the adjustment doesn It solve the problem.

Possible Couse

Possible Remedy

HARD TO START

No gasoline in starting tank or carburetor. ...Fill the tank with gasoline; open the fuel shut-off

valve. Check the fuel lines, fuel strainer and

carburetor.

Fuel strainer or fuel lines clogged. Clean the fuel strainer, check the fuel lines and

carburetor.

Impulse coupling inoperative (tractors

with magneto). Flush with kerosene; see page 28.

Water in gasoline. Drain the fuel tank and carburetor. Use new

fuel and dry the spark plugs. *

Water in cylinders. Check the cylinder head gasket or look for a

clogged drain hole in the exhaust manifold or
muffler.

Choked improperly. Flooded engine. Follow the starting instructions. See pages 9 and 10.Defective

ignition or loose wiring. Check the wiring, plugs, distributor and coil

unit, or magneto, etc. See pages 25 ta 41.Defective

battery or cranking motor. Check and service; see pages 33 and 34 or replace.

Spark plugs dirty or improper gap. Clean, adjust the gaps to .023 inch, or replace

the plugs.

Magneto grounded (tractors with

magneto). Pullout on the ignition switch. Check for other

possible grounds; also see "Magneto" an pages 27

ta 30.

Engine speed control not advanced. Advance the lever one-third for starting.

Lack of compression. *
Flywheel ring gear teeth broken. *
Lubricating oil of too high viscosity. Drain and refill with proper lubricant. See the

Gears engaged. Put the gearshift in the neutral position.
Internalseizure *

"Lubrication Table" an page 65.

ENGINE OPERATES IRREGULARLY OR KNOCKS

Engine incorrectly timed. Retime.

Spark plugs dirty; wrong gap or wrong type. ...Clean, reset the gaps to .023 inch, or replace.

Poor or weak spark. Check the distributor and coil unit or magneto

to see if the spark is good from the coil. Check
the breaker points and breaker point opening,

spark plugs, and wiring; see pages 25 to 41.

Carburetor setting incorrect. Adjust; see "Carburetor'! an page 11.

Poor grade fuel or water in fuel. Drain and use a good grade of clean fuel.
Engine overheating. Check the cooling system and fan belt; adjust the

radiator shutter if used; see "Engine Overheats'

an page 57.
Engine valves at fault. Check the valve clearance. *
Air leaks around intake manifold. Check the gasket and tighten the nuts.

Engine smokes. Check the air cleaner oil level. Check the fuel

delivery at the carburetor. Check for worn

E .

xceSSlve car on ln engmeL ..

oose plston pln or earmgs Broken rings or loose pistons. *

b ..*

b .*

piston and rings. *

Worn connecting rod and main bearings. *
Governor sticking or needs adjustment. *

* See your International Harvester dealer.

56

Mechanical

TROUBLE SHOOTING

Possible Cause

OF POWER

Engine speed control lever not advanced. Advance the engine speed control lever.
Engine cold or overheated. Run the engine until it warms up before putting

it under load. Check the cooling system. *

Engine overloaded. Reduce the load.
Engine knocks excessively. Use good fuel; also check the timing. *

Governor not working properly. *

Poor compression. Service the valves and piston rings. *
Poor fuel or too lean a mixture. See "Carburetor" on poge 11.

Fuel lines or strainer obstructed. Clean; see poge 10.
Fuel tank air vent closed. Open the vent in the cap.
Exhaust pipe clogged. Clean out.
Air cleaner clogged or air leakage between

carburetor and engine. Clean the air cleaner as instructed on poges 24 ond 25.

Tighten the carburetor and manifold mounting

nuts.

Oil of too high viscosity in crankcase or

air cleaner. Drain and refill with proper lubricant. See the

"Lubrication Table" on page 65.

Incorrect timing or faulty ignition. See "Distributor and Coil Unit" on pages 30 and 31 or

"Magneto" on pages 27 to 41.

Clutch slipping. Adjust the free travel of the pedal; see poges 52 ond

53.

Brakes drag. Adjust the brakes; see pages 50 and 51.

Carburetor intake manifold or cylinder

head intake ports restricted by carbon. Clean. *

Possible Remedy

ENGINE OVERHEATS

Cooling system clogged or limed. Clean the system; see page 22.

Fan belt slipping. Adjust or replace the belt; see page 23.

Insufficient water in cooling system. Fill the radiator to the proper level; see page

21.

Radiator cores clogged. Remove all chaff or dirt from the radiator grille;

clean with forced air or water.
Wrong kind of fuel. Change to a good grade of gasoline.
Carburetor improperly set. See "Carburetor" on page 11.

Timing incorrect. Check "Distributor and Coil Unit" on pages 30 and 31

or "Magneto" on pages 27 to 30.

Breaker point opening incorrect. Adjust the opening; see "Distributor and Coil
Excess load. Reduce the load.

Excess carbon in engine. *

Heat indicator defective (distillate engine) Replace the heat indicator. *

NO OIL PRESSURE, TOO HIGH OR TOO LOW

oil pressure indicator. Replace. *

Wrong viscosity, diluted or insufficient oil. ...See the I'Lubrication Table" on page 65. Check

Broken, loose or plugged oil lines Clean and tighten. *
Low oil level in crankcase. Add oil; see the "Lubrication Guide. I' Check for

or dirty oil pressure regulating

valve. *

Oil pump strainer clogged or pump not

working. Clean as instructed on poges 62 to 64.

Worn bearings. *

Unit" or "Magneto'! on pages 27 to 31.

the oil level; if diluted, replace with fresh oil.

an oil leak.

LACK

Defective

Defective

* See your International Harvester dealer.

57

TROUBLE SHOOTING

Possible Cause

Possible Remedy

OIL DILUTION OR USES TOO MUCH OIL

Oil of incorrect viscosity. See the "Lubrication Table" on page 65.

Leaks in oil lines or filter or in oil pan

plug or gasket. Check and tighten. *

Worn piston or oil rings. *

Loose connecting rod bearings. *
Long engine idling. Stop the engine.

Engine overheating or too cold. See "Lack of Power" and "Engine Overheats";
Enginespeedtoohigh *

see page 57.

Crankcase breather clogged. Clean. See page 61.

USING TOO MUCH FUEL

Fuel mixture too rich. Carbureto1" out of

adjustment. Check choke and see "Carburetor" on page 11.

Fuel leaks. Tighten or replace the fuel lines or fuel strainer

Poor grade of fuel Use a good grade of gasoline.

Choke closed. Investigate for the choke not operating.
Engine overloaded. Reduce the load or shift to a lower speed.

Poor compression *

Faulty ignition. *
Engine not operating at proper temperature. ..Check the cooling system. Check the lubricating

gasket.

oil. *

Air cleaner clogged. Service the air cleaner; see pages 24 and 25.
Wrong viscosity or amount of lubricating oil. ..See the "Lubrication Table" on page 65 and

keep the oil up to the proper level.

NO FUEL AT CARBURETOR

Fuel low in tank. Fill the fuel tank and check the fuel lines.

Air vent hole in fuel tank cap plugged up Clean out the vent hole.

Fuel valve closed or partly open. Open the valve; see the starting instructions.

Dirty or clogged fuel strainer screen or line. ..Clean as instructed on poge 10.

IGNITION AND ELECTRICAL

Wrong kind, old, cracked, dirty, or

poorly set spark plugs. Clean and set the gaps to .023 inch, or replace

Loose wiring or improper connections. Check the wiring to see that all connections are
Distributor and coil unit or magneto not

timed correctly. Retime as instructed on pages 27 to 31.

Distributor cap or rotor or breaker

chamber dirty. Clean as instructed on pages 30 and 31.

Breaker points dirty, pitted or im-

properly set. Clean and reset the opening or replace with new

Breaker arm stuck, weak or broken spring. ...Check and replace; see pages 30 and 31.

Impulse coupling dirty (tractors with

magneto). Clean and lubricate as instructed an page 28.

* See your International Harvester dealer.

with new plugs.
clean and tight; see pages 35 to 41.

points; on pages 30 and 31.

58

TROUBLE SHOOTING

Possible Couse

IGNITION AND ELECTRICAL. Continued

Possible Remedy

Battery defective, low charge or loose

connections. Recharge, clean and tighten the cable lugs or

replace with new; check the ground cable; see

Cranking motor failure. Replace. *Generator

pages 33 and 34.

inoperative. Clean the commutator, check the brushes; see

page 32.

regulator or generator relay. *

Charge indicator inoperative. Replace the charge indicator. *

Charge indicator shows discharge. Check the battery and generator; check the drive

belts and wiring.

Lights will not burn. Check the battery ground cable. Turn on the

switch, replace the sealed beam units, replace

the fuse, recharge the battery, or check the
wiring and generator. *

Lights burn dim. Turn the switch to bright. Recharge the battery,

tighten the cable terminals, check the sealed
beam units, clean the contacts.

BRAKES

Do not hold. Adjust the brakes; see pages 51 and 52 for new lining

needed. *

Drag or uneven. Adjust the brakes; see pages 51 and 52.
Grease on lining. Replace the lining. *

Return spring broken. Replace.

Do not release. Release the brake lock. Be sure the left brake

cross shaft is free to turn.

TRANSMISSION, BELT PULLEY AND POWER TAKE.OFF

Hard to shift gears. Use lubricant of the correct viscosity; see

page 65.

Shifter fork or lever defective. Replace. *

Engine clutch drags. See "Lack of Power. IIGears

clashing. Stop the tractor and disengage the clutch before

Gears slipping out of mesh. *

shifting the gears.

Noisy. Check the oil level; use lubricant of the proper

viscosity. *

Damagedparts *

REAR WHEELS

not turn. Release the brake lock. Transmission, differen-

tial or clutch faulty. See the transmission
section above. *

FRONT WHEELS

Too tight or toQ loose. Check the lubricant in the bearings, check the

Lubricant leakage. Check the oil seal. *

>'" See your International Harvester dealer.

bearing adjustment; see page 64.

59

Voltage

Do

TROUBLE SHOOTING

Possible Cause

Possible Remedy

STEERING

Check the steering worm and gear; check the

front axle adjustment; see pages 44 and 45.
Check the lubricant in the front wheel. Check

the tire inflation. *

Defective front axle.

Inspect the linkage, check and replace faulty

parts. *

turns to one side.

PNEUMATIC TIRES

or uneven wear

Slippage, rear tire. Add more weight, and check for high air pres-

FARMALL TOUCH-CONTROL SYSTEM

,,'c See your International Harvester dealer.

Check and adjust the brakes evenly; see pages 51 and

52. Check the pneumatic tire air pressures.

Check the front axle adjustment; see pages 44 and

45.

Check for toe-in; see page 45.

Check the air pressure and load on the tires.

sure; see pages 50 and 51. If the tread is badly

worn, the tires may slip more readily. Re-

place with new tir es or use lug-type chains.

See detailed instructions on pages 13 and 14

LUBRICA TION

Tractors shipped to destinations in United
States of America, Canada, and Mexico, have
the engine crankcase filled with oil. Refer to

"Engine Oil", the "Lubrication Guide", and

the "Lubrication Table" for proper oil and

service information.

Gasoline engines have the crankcase filled

with shipaway oil. This oil may be used forthe

first 100 hours of engine operation at pre-

vailing ambient temperatures from ten degrees

below zero to ninety degrees above zero
Fahrenheit. Note: This oil is not to be diluted
with kerosene for cold weather operation.

The engine has a pressure-feed lubrication

system. A gear-type oil pump circulates the

lubricating oil under pressure to the crank-

shaft bearings. connecting rod bearings. cam-

shaft bearings. valve mechanism. and timing

gears thereby assuring positive lubrication of

all parts.

The oil pressure gauge indicates whetherlubricating

oil is circulating through the en-gine.

Refer to page 6 for further information.

is running. To obtain the full benefit from the
filter, replace the used element with a new one,

every second time the oil in the crankcase is
changed. (After every 200 hours of operation).
Cleaning the oil element is not satisfactory.

CRANKCASE BREATHER AND OIL FILLER CAP

The engine is equipped with an oil filter

which continually cleans the oil while the engine

Faulty.

Tractor

Excessive

Maintenance.

!llust.60

Checking the oil level in the crankcase.

60

LUBRICA TION

CRANKCASE BREATHER AND OIL FILLER

CAP -Continued

The crankcase oil filler cap has a bayonet-

type oil level gauge attached to it. The oil

level should never be above the "FULL" mark
or below the "LOW'! mark on the gauge. When
checking the oillevel(lllust. 60), the gauge must

be withdrawn and wiped clean, then inserted

all the way and withdrawn for a true reading.

Never check the oil level while the engine

is running.

01 L PUMP

The gear-type oil pump in the crankcase

has a screen attached to the oil intake which
stops large dirt particles from entering the
oiling system. Clean this screen whenever the

oil pan is removed.

ENGINE OIL

Types of engine oil marketed have been

clas sified by the American Petroleum Institute

(API) as "For Service ML. II MM. MS. DG, DM

and DS.

It is not the policy of the International
Harvester Company to publish approved lists
of lubricants or to guarantee oil performance
in service. The responsibility for the quality
of the lubricant, .its performance under the
conditions of operation, and its compatibility
with the diesel fuels used must remain with
the supplier of the lubricant.

New API Service classificationo are now in
effect. Engine oils under the new code are
designated SA, SB, SC, SD, SE, CA, CB, CC
and CD. In this code, prefix I'S" denotes oils
available in service stations. Prefix "C" de­notes oils available for commercial users,

contractors, farmers, etc. The second letter

indicates quality of oil, "A" being lowest and

"EII highest.

We recommend III. H. Low Ash Engine Oil"

for the gasoline engine. This oil is specifically

formulated to minimize spark plug fouling and

exhaust valve failures. and provide maximum

engine life.

If other than "I. H. Low Ash Engine Oil" is

used, it must be designated "For Service MS"

and as a qualified "MIL-L-2l 04B". In new API

code, these oils are usually designated as meet-

ing both SD and CC requirements. For max-

imum engine life. these oils must contain a
minimum of barium, calcium, or magnesium
additives and should contain less than 0.5%

sulfated ash.

Multi-viscosity numbered oils such as

SAE lOW-30 or SAE lOW-40 must not be used

above 32 degrees Fahrenheit.

TO AID ST ARTIHG

To facilitate starting, the selection of

crankcase lubricating oils should be based on

the lowest anticipated temperature for the day.

It is not necessary to change the crankcase oil
every time the temperature rises or falls into
another temperatur~ range during some part

of the 24-hour day.

Note: After changing oil, the engine must

not be operated at high speed or under load

until the new oil has had ample time to reach

all bearings.

After changing to a lighter grade of oil, the

engine must be operated at least five to ten
minutes without load so the lighter oil is
worked into the bearings and onto the cylinder

walls.

Also see "Cold Weather Precautions" on

poge 54 for special instructions.

GEAR LUBRICANT

Tractors shipped from the factory to desti-

nations in the United States of America,

Canada, and Mexico are filled with lubricant
in the transmission and differential case, final

drives, and hydraulic system.

IH Hy- Tran <8> Fluid is recommended for the

hydraulic system. If fluid is used which does

not meet requirements of IH B-6 Specifications,
International Harvester Company will not be
responsible for sub-standard performance of

hydraulic components.

LUBRICATION FITTING GREASE

Use IH 25lH EP grease or equivalent H2
multi-purpose lithium grease for lubricCition
fittings on which the hand lubricator is applied.

Note: Keep your supply of lubricating oil and

grease absolutely clean and free from dust.

Always use clean containers. Keep the lubri-

cator clean and wipe dirt from the fittings be-

fore applying the lubricator.

OIL FILTER

The life of your engine depends llpon clean

oil being circulated to all bearings.

The purpose of the oil filter is to separate

and remove the dirt and other foreign sub-

stances from the oil to prevent these injurious

materials from being circulated to the engine.

This filter will keep the circulating oil free of
harmful materials. Under normal operating
conditions, replace the filter element every
200 hours of operation.

61

OIL FILTER. Continued

LUBRICA TION

Ii the element is not serviced and becomes

clogged, the element by-pass valve will open

and wrliltered oil will be circulated throughthe

engine.

Note: To avoid delays, carry extra filter
elements on hand so replacement can be made
at the proper time.

Changing the Fi Iter Element

Do not change the element while the engineis

running.

1. Remove the oil filter drain pipe cap

(1IIust.62A) and allow the oil filter to draincompletely.

2. Clean off filter cover I'A'I (1IIust.62) to

prevent dirt from dropping into the filter when

the cover is removed.

3. Unscrew and remove bolt "B" and gasket

"G" (1!lust. 62).

4. Lift up and remove filter cover "A" and

gasket "D" (1IIust.62).

Remove the old element.

6. H the oil appears very dirty or sludgy

when draining. flush out the filter case withkerosene.

Before flushing. however. replace
the bolt without the filter cover in order to
prevent sludge from being flushed into the

crankcase. When completely flushed and

drained. replace the drain pipe cap.

7. Inspect the small metering hole at the

threaded end of the oil filter retainer bolt, and

make sure it is not plugged. A plugged meter-

ing hole will impair or stop all oil flow through

the oil filter element.

5.

Diagram of 011 flow through the filter.

Illust. 62

Installing the new oil filter element.

Illust.62A

62

LUBRICA TION

OIL FILTER -Continued
Changing the Filter Element -Continued

Never operate the tractor without having

sufficient fluid in the reservoir. Insufficient

fluid may cause damage to the Touch-Control

system.

8. To install the new filter element, move
gasket "C" up to the top of bolt "B" and place
cover "A", gasket liD" and the new element

on the bolt in their proper order. See Illust. 62.
Then install the entire assembly and be sure
that filter cover gasket "D" seats properly.

Screw the bolt into the filter base and tighten

securely.

Note: Failures due to use of improper

fluid are not covered by warranty --FOR

MAXIMUM PROTECTION USE IH HY-TRAN
FLUID.

Draining and Filling the Reservoir

Normally it is not necessary to drain the

reservoir at any given time interval. If it be-

9. Check the oil level in the crankcase to
see that the new oil is up to the proper level
(see "Lubrication Guide"). Now start up the

comes necessary to drain the system for any
reason. such as disassembly, flushing the

system, etc.. proceed as follows:
engine, check the oil pressure gauge to see
whether lubricating oil is circulating through

the engine, and inspect the filter for oil leaks. 1. Wipe off all dirt and grit from the reser-

voir and filler plug.

TOUCH CONTROL SYSTEM

Fluid Level

2. Remove the filler plug (1IIust. 13) and the

drain plug (1IIust. 63) and place them in a clean

container.

When the Touch- Control system is filled

to the proper level with IH Hy- Tran @ Fluid, it

should not require servicing, unless for some
reason the system has been disturbed.

H the Touch-Control system should fail to
operate in a satisfactory manner, check to
see if there are any noticeable leaks in the

system, also check the fluid level in the res­ervoir, or see your hlternational Harvester

dealer.

Before removing the filler plug (1IIust. 13)

for inspection. thoroughly clean the plug and

surrounding area of all dirt and grit.

The correct fluid level is to the bottom of

the filler opening. H it is necessary to add

fluid, use ill Hy-Tran Fluid. It is essential
that the fluid be absolutely clean and free from

water and all foreign matter when placed in the
system. Cloudiness may indicate the presence

of moisture.

When the fluid has stopped draining. run

the engine very briefly to drain the fluid from
the pump and connecting pipes.

To clean the strainer, first wipe off all dirt

and grit from the cylinder block. H your trac-

tor is equipped with a radiator shutter, dis-

connect the radiator shutter control rod. Then

remove the heat indicator element from the

strainer by screwing out the element nut.

II lust. 63

Right side of Touch-Control system.

63

LUBRICATION

TOUCH CONTROL SYSTEM -Continued

Draining and Filling the Reservoir -Continued

Now remove the four cap screws which

hold the strainer to the cylinder block, and

pull out the screen. Clean the strainer thor­oughly in clean ill Hy-Tran Fluid.

Then replace the strainer and make sure

the gasket is in perfect condition. If the gasket

is damaged, replace it with a new one.

Replace the heat indicator element and

tighten the element nut sufficiently to prevent

leakage of ill Hy- Tran Fluid.

The refill capacity of the Touch-Control

system, when drained as instructed above,

is 3-1/2 U. S. pints.

Note: If it is necessary to flush the system,

use IH Hy-Tran Fluid so the necessary lubrica-

tion of the pump and control system is main-

tained without adulteration. Never use any

othe roil.

3. After the system has drained completely,

replace the drain plug and fill the reservoir

to within 1/ 2-inch of the bottom of the filler

opening with IH Hy- Tran Fluid.

4. Start the tractor engine and operate

it at a moderate idle speed. With the filler plug

removed, move the Touch-Control lever back

and forth 10 to 12 time s through its full range

of travel. This quickly frees the system of

trapped air. Then place the control lever in the

rearward position (toward the tractor seat) and

stop the engine.

5. Add sufficient clean fluid to the reser-

voir to bring the fluid level to within liZ-inch
of the bottom of the filler opening. Replace
and tighten the filler plug.

The capacity of a completely dry unit (when

a new or rebuilt unit is installed) is 4-1/4

U. S. pints.

Front wheel removed from hub.

Illust. 64

Glean the inside of hub "E", remove the old
grease from the bearings, clean them with
kerosene, and repack with IH -251 HEP grease

or equivalent #2 multi-purpose lithium grease.

It is advisable to leave bearing I'F" on the
axle and clean it with a brush and kerosene.
Repack the rollers with new grease before re­assembling the bearings.

mspect the oil seal felt washer and gasket
and if they are not in satisfactory condition,
replace them with new ones. A dirt deflector
is also provided on the axle to prevent dirt
from entering at the inner bearing.

Reassemble the wheel and tighten nut "B"
until the wheel binds slightly, rotating the
wheel at the same time. Back the nut off one

castellation from the cotter pin hole; replace

the cotter pin and hub cap.

GREASING THE FRONT WHEELS

Twice a year (spring and fall) remove.

clean, and repack the front wheel bearings.

Raise the front end of the tractor until the

wheel clears the ground and remove the wheel

as shown in Illust. 64. Unscrew hub cap I'A'I

(1IIust. 64A), remove the cotter pin, and remove

nut "BI' and washer "C". Remove bearing I'D'!
and place it in hub cap 'IAI! or a clean con­tainer.

Front wheel hub and bearing removed for cleaninQo

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10 hours,

International Cub Tractor

The symbols around the reference numbers indicate the intervals of lubricotion.

--250 hours,

-4--_J

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LUBRICATION GUIDE

International Cub Lo-Boy Tractor

The symbols around the reference numbers indicate the intervals of lubrication.

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symbols around the reference numbers indicate the intervals of lubrication.

-10 hours,

-50 hours,

-periodic

Cub Tractor

'\

8-91338

Illust. 68 -Fast-Hitch.

International Cub Lo-Boy Tractor

A

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A-48002C

Illust. 68A -Fast-Hitch.

68

LUBRICATION GUIDE

The symbols shown around the reference numbers in Illusts. 66, 67, 67A. and 68 indi-

cate the intervals of the lubrication. Paragraph numbers correspond to reference
numbers in the illustrations.

-Daily ar After Every 10 Hours of Operation

Check the oil (with the engine stopped) and add sufficient new
oil to bring it to the 'I FULL" mark on the bayonet gauge. Do

not check the oil level while the engine is operating or oper-

Crankcase oil level gauge

ondfillercap.

ate the engine if the oil level is below the "LOW" mark on the
bayonet gauge. If the oil level is checked after the engine has
been stopped for some time, the oil level may show slightly
above the "FULL" mark on the gauge. This is a normal con-

dition as the result of oil draining back from the filter.

2. Air Cleaner.

3. Steering knuckle post (2).

4. Tie rod (2).

5. Tie rod ball seat.

6. Front axl~ pivot shaft.

7. Steering shaft support bracket.

Fast-Hitch

8. Rockshaft plate bracket (2).

9. Rockshaft arm swivel (2).

10. lateral link swivel, upper (2).

11. leveling screw housing (1).

12. lateral link swivel, lower (2).

13. Depth adjusting screw
housing (1).

14. Bail bearing (in bail
attach ing bracket) (2).

Clean and refill the oil cup to the oil level bead with the

same new oil as used in the engine crankcase.

Use IH -251 HEP grease or equivalent #2 multi -purpose lithiun
grease and apply two or three strokes of lubricator, or suffi­cient grease to flush out the old grease and dirt. Lubrication
points are the same for both fixed and adjustable front axles.

Use IH-25l HEP grease or equivalent #2 multi-purpose lithiumgrease

and apply sufficient lubricant to flush out the old grease

and dirt.

-Weekly or After Every 50 Hours of Operation

15 Touch-Control rocks haft arms.

16 Clutch pedal shaft

17. Seat spring
(International Cub)

Miscellaneous parts

1.

{

69

Use IH-251 HEP grease or equivalent #2 multi-purpose lithium
grease and apply two or three strokes of lubricator, or suffi-

cient grease to flush out the old grease and dirt.

Lubricate the clutch and brake pedal connections with a few
drops of engine oil.

18. Crankcase oj I pan.

19. Oil filter drain.

LUBRICATION GUIDE

-After Every 100 Hours of Operotion

While the oil is warm, remove the crankcase drain plug and

oil filter drain pipe cap and drain all of the oil from the
crankcase and oil filter. Replace the drain plug and cap.
Remove the crankcase filler cap (1). Refill with new oil up
to the "FULL" mark on the oil level gauge. Refer to the

Lubrication Table.

20. Power take-off shaft.

21. Oil filter element.

22. Generator oj I cups (2).

23. Fan hub.

Use IH-25l HEP grease or equivalent 1#2 multi-purpose lithium

grease and apply one or two strokes of the lubricator.

-After Every 200 Hours of Operation

Replace the oil filter element every second oil change (200
hours of operation). Remove the crankcase drain plug (18)
and allow all the oil to drain out. Remove the oil filter

drain (19) and the filter cover (21), and remove the used filter
element. Replace the drain plug (18) and install the new filter
elements as instructed on page 62.

-Every Six Months or After Every 500 Hours of Operation

hlsert the oil can spout through the holes in the hood above
each oil cup. Lift the cap on each oil cup and place 8 to 10

drops of oil in each cup.

Note: Overlubricating will "gum" the commutator, resulting
in reduced output and increased wear. Never oil the commu­tator and do not lubricate the generator while it is in operation.

Turn the fan hub so oil retainer screw (23) is to the right

horizontal position. Remove the screw and fill the hub with
engine oil to the level of the filler hole opening. Now turn the
fan hub so the oil filler hole is on the bottom to allow excess

oil to drain off. Replace the oil retainer screw.

Magneto.

25. Distributor (battery ignition unit).

26. Clutch release bearing.

24.

Fill rotor bearing oil cup (24) once with the same oil used in

the engine crankcase.

Remove the grease plugs and insert lubrication fittings. Apply
IH-251 HEP grease or equivalent /12 multi-purpose lithium
grease to the distributor fitting until a small quantity comes

out of the relief hole opposite the plug. Apply several strokes
of the lubricator to the drive housing fitting.

Remove the distributor cap and the distributor rotor. and

apply one or two drops of light engine oil to the felt in the hole

at the end of the breaker came

Use IH-251 HEP grease or equivalent /12 multi-purpose lithium

grease. After every 1,000 hours or at least once every year,

apply a few strokes of the lubricator to clutch release bearing
fitting (26) or just enough grease until it starts to come out of

the bleeder hole on top of the bearing retainer. To reach the

fitting, remove the clutch housing handhole cover "A'I.

7n

27. Front wheel s.

Transmission

28. Oil filler plug.

29. Oil level plug.

30. Oil drain plug.

LUBRICATION GUIDE

Periodic

Twice a year (spring and fall) remove, clean, and repack the

front wheel bearings with IH-251 HEP grease or equivalent
1#2 multi-purpose lithium grease.

Check the oil level periodically. Keep the lubricant up to level
plug (29) on the left side of the transmission case. Change the
oil in the transmission case at least once a year, preferably
before freezing weather sets in. However, do not drive the
tractor more than 1,000 hours without changing the oil. Re­move drain plug (30) and allow all oil to drain out. Replace
the drain plug and remove filler plug (28) and level plug (29).

Refill with approved lubricant up to the level plug opening and
replace the plugs. Refer to the Lubrication Table for the
approved lubricant and capacity.

Belt Pulley Housing

31. Filler plug.

32. Level plug.

33. Drain plug.

R!ar Axle Hou~!nD

34. Oil filler and level plug (2).

35. Oil pan (2).

Steering Gear Housing

36. Filler plug.

37. Level plug.

38. Drain plug.

Magneto Distributor Gear

Check the oil level periodically. Use approved lubricant (see
the Lubrication Table) and keep the lubricant up to the level

plug (32). Drain and refill the housing each time the oil is

changed in the transmission case. To change the oil, remove
the drain plug (33) and allow all the oil to drain. Then replace

the drain plug. Remove filler plug (31) and level plug (32).

Fill to the level plug opening and replace the plugs.

Check the oil level periodically. Keep the lubricant up to
level plug (34) in each rear axle housing. Remove the drawbar

to get at the level plug in the left housing. Change the oil at

least once a year. However, do not drive the tractor more
than 1,000 hours withollt changing the oil. To drain, remove
rear axle housing pan (35). Clean the pan and replace it. Re-

move plug (34) and fill up to this level with approved lubricant.Replace

the plug. Refer to the Lubrication Table for the ap-

proved lubricant and capacity.

Check periodically and add sufficient approved lubricant to the

level of plug (37). Remove filler plug (36) and level plug (37)
and fill with approved lubricant to the level plug opening. Re­place the plugs. Refer to the Lubrication Table for the ap-

proved lubricant and capacity.

Every year or 2,000 hours repack with IH magneto grease.

Miscellaneous Parts

Occasionally put a few drops of engine oil on the engine control

linkage, such as the engine speed control rod, governor con-

nections, etc.

'71

To keep your tractor performing efficiently, it is advisable to systematically

inspect the following points at intervals as outlined below.

Before Operating the Tractor

Before operating a new tractor for the first time, be sure to follow the instructions given

on page 7; also see Lubrication Section on pages 60 to 71.

After the First 10 Hours of Operation

Fan and generator belts.

After Every 10 Hours of Operation

Air cleaner cap. Air cleaner oil cup. Coolingsystem

Lubrication points.

After the First 50 Hours of Operation

Cylinderheadbolts

valves

After Every SO Hours of Operation

Fan and generator belts.

.See your International Harvester dealer for this service.

Check tension. See pages 23 and 24.

Remove dirt or chaff. See page 25.

Clean and refill oil cup. See page 24.
Check level of coolant in radiator (two inches

from top of neck).

See "Lubrication Guide".

Check and tighten to the proper torque. See p'~g,J

42.*

Check clearance. See pages 42* and 43*.

Check tension; replace when necessary. See

pages 23 and 24.

Engine

72

PREVENTIVE MAINTENANCE GUIDE

After Every 50 Hours of Operation

Flexible rubber connection between air

cleaner and carburetor or manifold. fuspect for loose fit or leakage. See page 25.

Pneumatic tires. Check pressure. See pages 50 and 51.

Radiator core. fuspect. cl~an if necessary. See page 23.

Lb "" " S "

u rlcatlon polnts ee u rlca ton Ul e .

After Every 100 Hours of Operation

Lb ' t " G ' d "

crankcase

After Eve ry 150 Hours of Operation

cleaner. Brakepedals

Clutch pedal. , Lubrication points Engine valves

After Every 200 Hours of Operation

Lubricating oil filter.

After Every 250 Hours of Operotion

Crankcase breather. ~ ..
Fuel strainer and sediment bowl. Magneto breaker points and chamber (trac-

tors with magneto} Magneto drive chamber and impulse coupling

(tractors with magneto) Sparkplugs Wheel hub bolts

Drain and change oil.

Disassemble and Clean. See page 25.

Check for free movement and equal pressure.

See pages 51 and 52.

Check for free movement. See page 52.

See "Lubrication Guide".

Check clearance. See pages 42* and 43*.

Replace the filter element. See pages 61 to 63.

Clean and oil. See page 25.

Take apart and clean. See page 10.

Check and clean. See page 27.

Flush with kerosene. See page 28.

Remove and clean; check gaps.See pages 26 and 27.

Check for tightness. See page 44.

After Every 500 Hours of Operotion

Engine valves Fan hub Fuel line screen (at carburetor) Lubrication points

Cooling system

Distributor cap, breaker points and chamber

Frontwheels

battery. Lubrication points

,. See your International Harvester dealer for this service.

Engine

Air

Storage

73

Check clearance. See pages 42* and 43*,
Add oil to proper level. See page 24.
Clean. See page 11.

See "Lubrication Guide".

Periodic

Drain, flush, and refill (spring and fall). See

pages 21 to 24.

Clean chamber andcheckpoints. See pages 30 and 31.
Clean and repack with new grease twice a year

(spring and fall). See page 64.

Check liquid level. See pages 33 and 34.

See IILubrication Guide".

CAPACITIES (Approximate-U.S. Measure)

Fuel tank. Watercoolingsystem Crankcase pan TransmissioncaseR xl d .

h .

cleaner oil cup (United) Belt pulley housing. Touch-Controlsystem

( h) { International Cub Lo-Boy. ear a e rlve ouslng eac .

Internatlonal Cub. Steering gear housing. Aircleaneroilcup(Donaldson) .Air

ENGINE

Cylinders Bore. Stroke Engine speed (governed)

Low idle speed. High idle (goverued speed) Fullload(governedspeed) Magneto (clockwise rotation) Spar1;: plug gap. Valveclearance(enginecold) Carburetor Battery ignition unit (when so equipped) (160 advance distributor) .

TRANSMISSION (Three Speeds)

7-1/2 gal.
9-3/4 qt.

3 qt.

3-1/2 pt.
1- 1/2 pt.

1-3/4 pt.
3/4 pt.

1/ 2 pt.
3/8 pt.

1/3 pt.

4-1/4 pt.

4

2-5/8-in.

2-3/4-in.

450-500 rpm
2, 000 rpm

1,800 rpm
!H, Type J-4
.023-in.

.015 -in.

IH, 3/4-in. updraftIH

(Speeds base.d on 8 -24 pneumatic tire size)

Speed: 1 st. 2nd. 3rd. Reverse.

POWER TAKE-OFF SHAFT SPEED (Counterclockwise Rotation)

Low idle speed. High idle (governed speed) Full load (governed speed)

4 mph3.2

mph7.
3 mph2.
7 mph

475 rpm
2,015 rpm
1,800 rpm

The power take-off shaft connection is a

IS/lb-inch pitch diameter. ten-tooth involute
spline with a 30 degree pressure angle. ma­chined for outside diameter fit. The dimen­sions are shown in Illust. 74.

2.

Illust. 74

Power take-off shaft spline dimensions.

74

tJELT PULLEY

Pulley speed

Low idle speed. Highidle(governedspeed) Fullload(governedspeed) Belt speed (6-in. pulley) (7-5/8-in. pulley) * '."..'.".".' (9-in. pulley). Pulley diameter. Pulley.face ELECTRICAL SYSTEM

SPECIFICA TIONS

392 rpm

1,665 rpm

1,487 rpm

2, 336 ft. per min.
2,968 ft. per min.
3, 504 ft. per min.

6 in., 7-5/8 in., 9-in.
4-3/4-in. .

System voltage Generator, Delco-Remy Voltage regulator, Delco-Remy, Cranking motor, Delco-Remy ,

Light switch Lamps -all glass, sealed beam units. ...Fuse

(cartridge type)

CLUTCH

Single-plate, dry-disc, spring-loaded.

FOOT BRAKES

External contracting on drums.

WHEELS AND TREAD

Front wheels. pneumatic tire size. Rear wheels, pneumatic tire size. Wheelbase Tread, front (standard-fixed axle with

reversible wheels) Tread, fJ"ont (adjustable front axle, 4-in.

intervals) Tread, rear (adjustable-reversible wheels

and rims, 4-in. intervals)

12 volt

25 amp.

/. unitPositive

engagement,push

button controlled
~ position
12-16 voltAGC-I0

amp.

t4.00-12
t8.3-24

69-1/4 in.

and 46-3/8 in.

and 56-5/8 in.

40 to 56 in.

6 volt

35 amp.

2 unit

Bendix drive
4 position

6-8 volt
SFE-20 amp.

6 -1/ 2 in.

rnational

Cub Lo-Boy

t4.00-12

t8.3-24

61-7/8-in.

and 49-in.
to 55-in.

40 to 56-in.

GENERAL

Length, over-all Width, over-all-minimum treads. Width, over-all-maximum treads. Height, over -all (to top of steering wheel) ..Ground

clearance for crops: Under front axle

Under rear axle

Quick-attachable drawbar (adjustable):

Normal height. High and low positions. Lateral adjustment.

Fast-Hitch drawbar: Height above ground. ..

Lateral movement. ...

Minimum turning radius with minimum treads

Withbrakeapplied t Other pneumatic tire sizes are available.

* Regularly supplied with belt pulley.

Specifications are subject to change without notice

Inte

40-5/8

43

40-5/8

39

8-1/4

~/8L/4

in.in.in.in.in.in.

99-.48-

64-

L /4~/4

62-20-.

~/8~/4

20-

14-3/8 in.
12-3/8 and 16 in.
11-3/8 in. on each

side of center hole

7 to 22 in.

9-1/2-in.

8-1/4 ft.

75

92-in.48-1/4-in.

64-1/4-in.

56-1/4-in.

14-in.
14-in.

l2-3/4-in.
11 and l4-l/2-in.
ll-3/B-in. on each

side of center hole

4 to 24 -in.
9-l/2-in.

ft.

The tractor is used for so many different types of work and is called on to
operate under so many different conditions that a considerable variety of equip­ment is necessary to adapt it to the varied requirements of the user,

When you purchased your tractor, you probably had it completely eq1,lipped
for your particular needs at that time. However, later you may wish to obtain

some of the equipment or accessories listed below. These items can be pur-

chased from and installed by your International Harvester dealer.

Type of Equipment

Belt Pulley and/or Power Take-Off

De Luxe Upholstered Seat

Detachable Seat Pads

Fast-Hitch
Front Axle, Adjustable
Front Wheel Weights

High Altitude Cylinder Head

Horn

Description Description

Adding water to the cooling system

(When equipped with pressure-

type radiator cap). Adjustable wide tread front axle. ..

Adjusting the drawbar. Adjusting the engine clutch. Adjusting the front wheel tread

widths Adjusting the seat (International Cub)

Adjusting the seat (International Cub

Lo-Boy) Adjusting the tread widths (Rear

Wheels). Mter the engine starts. Air cleaner oil cup. Air cleaning system. Airinthesystem Air intake cap and screen. Before operating the tractor. Belt pulley and power take-off. ...

Page

No.

21, 22

44,45

18

52,53

44

11

46

10

8

25

14

25

Type of Equipment

Pull Bar Extension (Tractors with Fast-Hitch)
Rear Wheel Weights

Tachometer

Tire Pump for Pneumatic Tires
Tire Pump Kit for Pneumatic Tires
Touch-Control

Rotators

Page

No.

Care of the engine clutch. Care of tires. Changing from belt pulley to power

take-off Changing from power take-off to

belt pulley. Charge indicator. Chokerod Cleaning the cooling system. Cleaning the fuel strainer and

52

50

20

20

6

5

22

sedimentbowl Clutch Clutch pedal Cold weather precautions. Combination rear light and tail-

10

52,53

5

55

light. Contents. Coolingsystem Coupling the equipment (Fast-

33

"';over No.221

to 24,55

Belt pulley and power take-off

shifterrod Brakes. Brake adjustment. Brakepedals

Carburetor Carburetor choke lever..

AND

Valve

1112

24,

11530,

719.

b

51,52
51,52

4, 5

20

Hitch) Crankcase breather. Crankcase breather and oil filler

cap. Crankshaft bearings. pistons. and

rings. Cylinder head gasket.

Distributor and coil unit ..
Driving_the tractor.

76

17

2560,61

42
42

31

II, 12

INDEX

Description

Electrical system. Engine cooling system. Engine oil. Engine speed control lever. Extra equipment and accessories.

Fanbelttension Fan hub lubrication. Fast-Hitch Fast-Hitch load limitations. Filling the cooling system. Filling the fuel tank. Frontwheels Front wheel weights (one piece) ..

Front wheel weights (two piece) ..

Fuelsystem Fuse.

lubricant. Gearshift lever. General precautions (Air Cleaning

System). Generator and regulator. Generatorbelt Generator belt tension. Governor. Greasing the front wheels.

Headlights Hitch adjustments. Hitching trailing equipment to the

tractor.

coil. Ignition switch (12-volt system)

Ignition switch button (6-volt

system) Inflation, tire. Instruments and controls. Introduction.

Lighting switch. Locking the brakes. Lubrication Lubrication fitting grease. ..

Lubrication guide. Lubrication table.

Magneto impulse coupling

(Tractors with magneto). Minor engine service operations

Mounting tire s ~e rim. ...

No.

to 41

7

61

5

76

23

24

14 to 17

17

21

8

44,45

48

48,49

7. 9. 10

11. 55

33

10

61

5

25

32

24

32

5

64

32

17
18

32

5

6

50

4 to 6

2, 3

6

12

7. 55,

60 to 64

61

66 to 71

65

27 to 30

55

42,43

51

Description

Oil cup service. Oil filter Oil pressure gauge. Oilpump Operating pressure for low-

pressure tractor tires. Operating the belt pulley or power

take-off with the tractor standing

still. ,

Operating the power take-off with

tractor in motion. Overloading.

Pneumatic tires Polarizing the generator. Powe r timing light. Preparing for each day's work. ..

Push button starting switch. Preventive maintenance guide. ..

:pull bar extension (Fast-Hitch) ..

Radiator core. Rear wheels Rear wheel weights. Removing from storage. Removing the drawbar. Rust p1:evention Safety instructions. Shipping tractors equipped with

pneumatic tires. Spark plugs and cables.. Specifications. Starting switch control rod. Starting the engine (6-volt system)

Starting :~,e engine (l2-volt system)

Starting th'3 tractor. Steering tr.e tractor. Stopping the engine. Stopping the tractor. Storage battery Storing the tractor.

Tachometer drive unit. Taillight Tirechains Toaidstarting Touch-Control system. Towing the tractor. Traction and weights. Tractor break-in procedure. T rouble shooting.

U sing the spark plug tire pump, , ,

Valve clearance adjustment. Warning light. Washing the cleaner. ., Weights. , ..

Wheelweights" :., ,-,

77

Page

No.

24

61 to 63

6

61

50, 5:

19

2051

7,50, 51

32
32

8

5

72, 73

17

23

46,47

49
54

18

22, 23

5026.

27

74, 75

6

9. 10

9

12
12

10

1233.
34

53,54

43

33

51
61

13, 14,

63.64
12
51

7

56 to 60

33

2548,49

51

Page

25

9.

Gasolineengine Gear

Ignition

50

Magneto.

42,43