International Harvester Company 72, 124, 125, 104, 105 Operator's Manual
INTRODUCTION
Illust. 1
International Cub Cadet 124 Tractor.
(Ilust. 1A
International Cub Cadet 105 Tractor.
1
INTRODUCTION
Illust.2
Internatianal Cub Cadet 104 Tractor.
Illust. 2A
Internatianal Cub Cadet 72 Tractar.
2
OPERATING THE ENGINE
STARTING THE ENGINE
Be sure the fuel shut-off valve is open.
control button all the way in. Do not use the
choke to enrich the fuel mixture, except when
necessary to start the engine.
Manual Starting '(Tractors without electric storting):
Raise the tractor hood. The retractable starter
is mounted on a support plate at the front of the
engin~ at the right side of the tr actor.
2. Pull the choke control button all the way
out (see Illust.4or5}. More or less choking may be
necessary due to variations in temperature,
grade of fuel, etc. Little or none will be
needed when the engine is warm.
Put the gearshift lever in the neutral posi-
tion and lock the brake. Turn the key ignition
switch clockwise.
Give a quick steady pull on the retractable
starter handle to start the engine. Do not jerk,
or pull it out to its very end in a rough manner.
A steady pull will accomplish just as much.
Always pull the handle so the cord is in a
straight line through the guide. Maintain your
hold on the handle and allow the cord to returl}
slowly. Releasing the handle when the cable is
extended will shorten the life of the starter.
3. Place the throttle lever halfway between
"SLOW" and "FAST". See Illust. 4 or 5.
4. Electric Starting: The engine cannot be
started unless the brake pedal is pressed all
the way down to activate the safety starting
switch.
International Cub Cadet 72, 104, and 1'24 Tractors:
Check to see that the gearshift lever is in the
neutral position. See Illust. 4.
International Cub Cadet 105 and 125 Tractors:
Check to see that the speed control lever is in
th " N" ot O
Se pOSI Ions. ee Illust. 6.
5. After the engine starts, slowly release
the clutch pedal and gradually push the choke
control button all the way in. Do not use the
choke to enrich the fuel mixture, except when
necessary to start the engine.
STOPPING THE ENGINE
All Models: Turn the ignition key clockwise
to the "START" position and release it as soon
as the engine starts; however do not operate the
motor-generator for more than 30 seconds at
anyone time. If the engine does not start within
this time, turn the key "OFF" and wait a few
minutes, then try again.
Move the throttle lever to the "SLOW" po-
sition and allow the engine to idle for a short
time before stopping. Then turn the key to the
"OFF" position.
5. After the engine starts, slowly release
the brake pedal and gradually push the choke
FUEL SHUT.OFF VALVE
FUEL SYSTEM
Be sure the shut-off valve on the fuel
strainer under the gasoline tank is open.
Screw out the needle stem (Shut-off valve) until the seat on the stem is tight against the
stop, to prevent leakage or seepage when the
valve is in its full-open position.
Fill the fuel tank with clean, fresh, regular
grade gasoline, preferably at the end of each
day's use. This will force out any moistureladen air and prevent condensation in the fuel
tank. Do not mix oil with the gasoline.
CLEANING THE FUEL STRAINER AND SEDIMENT BOWL
The fuel tank filler cap has an ai.r vent.
Keep the vent open at all times to assure
proper flow of the fuel.
After every 25 hours of operation, clean
the fuel strainer as follows:
Caution! Never remove the fuel tank cap
or fill the fuel tank when the engine is running,
is hot, or when near an open flame. Do not
smoke when working around inflammable fuel,
as the air around the tractor is mixed with a
highly explosive vapor. When pouring fuel,
keep the container or hose nozzle in contact
with the metal of the fuel tank to avoid the
possibility of an electric spark igniting the
ga s. Do not spill ga s oline on a hot engine.
1. Close the shut-off valve. See Illusts. 9 and 9A.
Loosen the knurled nut under the sediment
bowl and remove the bowl and screen.
2. Clean the sediment bowl and screen.
3. When reassembling, be sure the gasket
between the bowl and the main body is in good
condition and does not leak. Use a new gasket
if necessary.
8
FUEL SYSTEM
Illust.9
Carburetor and fuel strainer.
(International Cub Cadet 72 Tractor)
(1Iust.9A
Carburetar and fuel strainer.
(International Cub Cadet 104, 105, 124 and 125 Tractars)
CARBURETOR ADJUSTMENTS
For a final check of the high speed adjust-
ment, operate the engine under load and make
any corrections necessary for smooth opera-
tion.
Adjusting the Idle Adjustment Screw
The carburetor is adjusted at the factory
and under normal operating conditions it will
not require readjusting. If this adjustment has
been disturbed for any reason, proceed asfollows:
Adjusting the High-Speed Adjustment Screw
After the high speed adjustment screw is
adjusted, it may be necessary to readjust the
idle. adjustment screw (1IIusts. 9 and 9A), as each
affects the other..
Turn the high speed adjustment screw (1IIusts.
9 and 9A) counter-clockwise approximately two
turns from the closed position and start the en-gine.
Close the idle adjustment screw to its seat
by turning it clockwise; then open it one turn.
Start the engine and operate it at fast idling
speed (without any load) until thoroughly warm.
After the engine has reached normal oper~
ating temperature, accelerate the engine and
check its response.
While the engine is running at fast idle
speed, it is advisable to screw in the throttle
stop screw (1IIusts. 9 and 9A) a few turns to keep
the engine from stopping when the throttle
lever is moved to the fully retarded "SLOW"
position. 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.
Place the engine under load and turn the
high speed adjustment screw (1III/sts. 9 and 9A) to
the leanest mixture that will allow satisfactory
acceleration and steady governor operation.
If the engine misses and backfires under
load, the high speed mixture is too lean. The
high speed adjustment screw must be turned
counter-clockwise l/4 turn at a time until the
condition is corrected.
If the engine mis'ses or rolls while backing
out the throttle stop screw, the idle adjustment
screw may be adjusted in or out until the en-
gine operates smoothly. Speed up the engine
for a few seconds; then recheck the idle ad-
justment. A slight adjustment in or out will
give the smoothest idle.
If the engine shows a sooty exhaust and is
sluggish under load, the high speed mixture is
too rich. The high speed adjustment screw
must be turned clockwise 1/4 turn at a time
until the condition is corrected.
9
PREPARING THE TRACTOR FOR EACH DAY'S WORK
Retighten the cap screws after the seat is
adjusted.
Fill the fuel tank at the end of each day's
run. See page 8.
The International Cub Cadet 104, lOS, 124
and 125 Tractors features a seat which can be
tilted forward over the steering wheel, for convenience in adjusting the seat and to keep out
rain and snow. See Illust. 10.
Check the crankcase oil level and add new
oil if ne ce s s ary. See page 29.
Clean the air cleaner element if necessary.
See page 17.
Inspect the tires for general condition. See
pages 23 and 24-
ADJUSTING THE SEAT
Illust. lOA
Adjusting the seat.
(Internatianal Cub Cadet 72 T ractar.)
CLUTCH AND BRAKE PEDAL
Illust. 10
Adj usting the seat.
(Internatianal Cub Cadet 104, 105, 124 and 125 Tractars)
Before starting the tractor, adjust the seat
to the most comfortable driving position by
loosening the four cap screws in the seat sup-
port (lllust. 10) or seat spring clamping plate
(lllust. lOA) and sliding the seat assembly forward
or rearward to the position which is most
comfortable for the operator.
III ust. lOB
Brake pedal lack in the engaged position.
10
DRIVING THE TRACTOR
(I nternational Cub Cadet 12, 104 and 124 Tractors)
CLUTCH AND BRAKE PEDAL. Continued
Note: Do not rest your foot on the pedal
while driving the tractor, as this will result
in excessive clutch lining wear.
The combination clutch and brake pedal is
used to disengage the engine from the trans-
mission when shifting gears and to actuate the
brake to stop the tractor. The pedal must be
pressed all the way down to activate the safety
starting switch when starting the engine.
Always be sure the rear wheels are free
to turn. Under any adverse conditions, do not
attempt to free the tractor by speeding up the
engine and suddenly engaging the clutch. Try
backing out instead of going forward.
To disengage the clutch, press the pedal
approximately half way down. To stop the tractor press the pedal all the way down.
STOPPING THE TRACTOR
Disengage the clutch by pressing the pedal
all the way down. Move the gearshift lever to
the neutral position.
LOCKING THE BRAKE
CREEPER SHIFT LEVER
Always lock the brake when the tractor is
parked on a grade. To lock the brake, press
down on the brake pedal; then place the brake
pedal lock in the engaged position. To disengage the lock, press down on the brake pedal
lift the lock up and place it in the disengaged
position behind the brake pedal as shown in
Illust. 7.
The creeper drive provides a slower speed
in each respective gear, by a four-to-one reduction in speed from direct drive. When the
creeper shift lever is all the way forward, it
is in direct drive, or all the way rearward, it
is in creeper drive. See 1(lust. 4. Note: Do not
use a mid-point position on the creeper drive
as neutral. Neutral position must be selected
only with the standard transmission gearshift
lever.
GEARSHIFT LEVER
OPERATING THE CREEPER DRIVE
To operate the tractor in creeper drive,
move the creeper shift lever (1IIust.4) all the
way rearward. Then select the speed desired
and proceed as instructed under !'Starting the
Tractor".
This lever is used to select various gear
ratios provided in the transmission. There
are three forward speeds and one reverse
speed. See Illust. 4. Refer to "SPECIFICA TlaNS"
on page 35.
The following table shows the speeds avail-
able in each of the three forward gears and thereverse
gear.
STARTING THE TRACTOR
SPEED TABLE
1. Advance the throttle lever slightly. See
Illust. 4.
Miles Per Hour
2. Disengage the clutch by pressing the
clutch pedal all the way down. and move the
gearshift lever to the desired speed.
Creeper
Drive
Direct
Drive
Gear
.6
2.3
First
3. Start the tractor in motion by slowly
releasing the clutch pedal and moving the
throttle lever to the pos ition where the engine
operates best for the load to be handled.
1.0
Sec~nd
3.9
Third 6.8
1.7
Note: Do not shift gears while the engine
clutch is engaged or while the tractor is in
motion.
2.5
.6
Reverse
DRIVING THE TRACTOR
(International Cub Cadet 105 and 125 Tractors)
BRAKE PEDAL
the tractor is used to hold the rotary tiller
back rather than to pull the unit, as in plowing or mowing.
The brake pedal must be pressed all the
way down to activate the safety starting switch.
When the brake pedal is in the depressed position it automatically moves the speed control
lever to the "Nil position.
4. Move the speed control lever back to a
position to maintain proper mulching of the
soil.
The tractor can be stopped either by
pressing the pedal all the way down, or placing
the speed control lever in the I'NII position.
5. With a hydrostatic drive, it may be nec-
essary to vary the speed control lever as
the soil conditions vary. With a gear drive
tractor, under similar conditions, it may be
necessary to de clutch or to use the brake.
LOCKING THE BRAKE
Always lock the brake when dismounting
from the tractor. To lock the brake, press
down on the brake pedal; .then place the brake
pedal lock in the engaged position. S..lllust. 10B.
To disengage the lock, press down on the brake
pedal, lift the lock up and place it in the dis-
engaged position behind the brake pedal as
shown in Illust. 7.
6. If desired depth cannot be obtained in the
first pass. additional passes will be neces-
sary. Do not use tine extensions when attempting deep penetration or when tilling heavy soil.
SPEED CONTROL LEVER
This lever is used to select any speeds
from a standstill IINII position to eight miles
per hour in the forward direction and to four
miles per hour in the reverse direction.
STARTING THE TRACTOR
1. Advance the throttle lever slightly. See
1!lust.6.
2. Dep~ess the brake pedal by pressing the
pedal all the way down, and move the towing
lever (I'luit. 6) in drive (horizontal) position,
then move the throttle lever to the position
where the engine operates best for the load to
be handled.
Moving the speed control lever forward
provides increased forward speeds. and mov -
ing the lever rearward provides the reversed
speeds.
Note: Do not rest your foot on the brake
pedal while driving the tractor as this would
cause the speed control lever to return to the
!'N'I position.
Note: On tractors with a rotary tiller the
following instructions are required.
1. Engage the Power Take- Off clutch.
2. Lower the rotary tiller to the desired cut-
ting depth.
3. Start the tractor in motion by moving
the speed control lever forward or rearward
as described above.
RELEASE LEVER
To push or move tractor for a short distance
or when working on the engine, the release le-
ver (1IIust.6) must be locked in the release
(down) position and the speed control lever must
be in the "N" position. Caution: Do Not Tow.
STOPPING THE TRACTOR
Move the speed control lever to the I'NI'
position or use the brake. Before dismounting
always depress the brake pedal.
3. Move the speed control lever to start for-
ward motion. Note: In rotary tilling application,
three-point hitch is raised and lowered with
the lift handle. The lift handle can be set to
hold the equipment at various positions by use
of the six notches in the lift handle quadrant.
The lower mounting bracket has three holes
which are used for additional adjustment.
Trailing-type equipment must be hitched to
the tractor only at the hitch hole in the draw-
bar. See Illusts. 13 and 13A.
When the tractor has a three-point hitch
(1IIusts. 13 and 13A) equipment adaptable to the
12
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