International Harvester Company INTERNATIONAL Cub Cadet 73 User manual

.4
INTIRNtf^NAl
HAAVHfiS
OPERATION
MAINTENANCE
LUBRICATION
INTERNATIONAL
CUB CADET
9
73, 106, 107, 126,
127, and 147
Tractors and

To The Owner
Assembled in this manual are operation,
lubrication, and maintenance instructions for
the International Cub Cadet 73, 106, 107, 126,
127, and 147 Tractors. The material has been
prepared in detail to help you better understand
the correct care and efficient operation ofyour
tractor. Before you operate the tractor, study
this manual carefully. New copies may be
ordered from your dealer at a nominial price.
Your local International Harvester dealer
is interested in the performance you receive
from this tractor. He has factory-trained
servicemen, informed in the latest method of
servicing tractors, modern tools, and original-
equipment IH service parts which assure pro¬
per fit and good performance.
The International Cub Cadet 107, 127, and
147 Tractors have a hydrostatic drive. It is
the best hydraulic drive unit available and will
require minimum service if recommended
operating and maintenance procedures are
followed. Should you have difficulties with the
unit consult your International Harvester
dealer. UNDER NO CIRCUMSTANCES SHOULD
YOU ATTEMPT TO SERVICE THESE UNITS
YOURSELF. Only your dealer is authorized to
repair or replace units on this drive under the
terms of the warranty. Should you desire ad¬
ditional information not found in this manual,
contact your International Harvester dealer.
The International Cub Cadet 73, 106 and
126 Tractors have a conventional clutch and
transmission.
To obtain top performance and assure eco¬
nomical operation the tractor should be in¬
spected, depending on its use, periodically, or
at least once a year, by your International
Harvester dealer.
When in need of parts, always specify the
model, chassis and engine serial numbers,
including the prefix and suffix letters. Write
these serial numbers in the space provided
below.
INTRODUCTION
A variety of extra equipment and accessor lee
is available. Where operating and maintaining
instruction is required, it is included in the
instruction for operating and maintaining the
tractor. Disregard the instructions for equip¬
ment not on your tractor.
The illustrations in this manual are num¬
bered to correspond with the pages on which
they appear; for example, lllust. 7 on poge 7.
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 grille end of the tractor; to REAR the
drawbar end.

SERVICE MANUAL INFORMATION
Your International Harvester Dealer and his factory trained servicemen are
best qualified to service your equipment* Up to date instructions and adequate
special tools are also a part of your Dealer's service facilities.
This Operator's Manual was prepared to instruct you in proper operation and
maintenance of your equipment. If you desire additional information you may
purchase a Service Manual*
Tear off this order blank and forward, with your check for $3.00 to:
International Harvester Company
INTERNATIONAL HARVESTER PRESS
4829 South Kedzie Avenue
Chicago, Illinois 60632
Attention: Cashier
Cut along this line
Please send me one • GSS 1404 Service Manual for Cub Cadets and International
Harvester Equipment. My check for $3*00 is enclosed.
Please Print
NAME _
ADDRESS
Signed
1

VI
fJtMOUTAMHCHHI JAUMAM 33IV»2
4

CONTENTS
Description
Page No.
INTRODUCTION.
ORDER FORM FOR SERVICE MANUAL.
CONTENTS...
SAFETY INSTRUCTIONS .
INSTRUMENTS AND CONTROLS.
BEFORE OPERATING YOUR NEW TRACTOR .
OPERATING THE ENGINE.
FUEL SYSTEM.
DRIVING THE TRACTOR.
HITCHING EQUIPMENT TO THE TRACTOR ..
REAR POWER TAKE-OFF.
FRONT POWER TAKE-OFF.
ELECTRIC LIFT ..
ENGINE COOLING AND AIR CLEANER ..
ELECTRICAL SYSTEM .
PNEUMATIC TIRES ..
FRONT WHEELS .
CLUTCH-BRAKE ..
STORING THE TRACTOR .
EXTRA EQUIPMENT AND ACCESSORIES.
TROUBLE SHOOTING.
LUBRICATION.
LUBRICATION TABLE .
LUBRICATION GUIDE.
SPECIFICATIONS.
OPERATING INSTRUCTIONS (INTERNATIONAL ROTARY MOWERS)
INTRODUCTION.
BEFORE OPERATING YOUR MOWER..
ADJUSTING AND OPERATING .
Lubrication.. ... , ,
Starting and stopping the mower ...
Level adjustment ....
Height of cut .......
V-Belt .
Cleaning . ... ♦ . . ....
Blade care.... ..
Mowing....
General .....
Attaching and detaching the mower....
Safety suggestions....
INDEX .
Inside cover 1*
1
3
4
5,6, 7
8
8.9
9. 10
11.12. 13
13.14
15
16
17
17, 18
18. 19. 20
20 , 21
21
22 to 25
25
26
26. 27
27, 28
28
29 to
35
35 to
38
39 to
44
40
40
41
41
42
42
42
42
42
43
43
43
43
43
45.46
2
3

SAFETY INSTRUCTIONS
1« Disengage all clutches and shift into
neutral before starting the engine*
2* Disengage power to any attachments and
stop engine before leaving operator's seat or
making any repairs or adjustments*
3* Know the controls and how to stop quickly
- READ THE OPERATOR'S MANUAL.
4. Do not allow children or adults to oper*
ate the equipment without proper instruction.
S. Clear work area of objects which might
be picked up and thrown.
6. Disengage power to any attachment when
transporting or not in use.
7* Do not carry passengers. Keep children
and pets a safe distance away*
8* Take precautions* such as disengaging
power take-off* shifting into neutral* setting
the parking brake* stopping the engine and re¬
moving ignition key when leaving machine un¬
attended.
9. Reduce speed on slopes and in sharp
turns to prevent tipping or loss of control*
10* Stay alert for holes in terrain and other
hidden hazards.
11. D on't atop or start suddenly when going
uphill or downhill.
12. U se 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 counter¬
weight or wheel weights when suggested in
Operator's Manual.
13. W atch out for traffic when crossing or
near roadways*
14* When using any attachments* never
direct discharge of material toward bystanders
nor allow anyone near the machine while in
operation*
15. Handle gasoline with care • it is highly
flammable: A* Use approved gasoline con¬
tainer. 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. Also, do not
smoke when working around inflammable fuel.
Wipe up spilled gasoline. C. Replace gasoline
cap securely. D. Open doors if engine is run¬
ning in a garage - exhaust gasses are danger¬
ous.
16. Keep machine in good operating condi¬
tion and keep safety devices in place. Use
guards as instructed in Operator's manual*
4

INSTRUMENTS AND CONTROLS
4U44t) A
lllust. 5
Instruments and controls on the Intemationol Cub Cadet 73 Tractor.
1. Brake pedol lock.See pa 9 es 12, 13
2 * Choke control button . ....See page 9
3. Clutch-broke pedol.... See pages 11, 12
4» Creeper shift lever ^ ... See page 12
S* Creeper drive housing breather
6. Front power tohe-off clutch lever ... • See page 16
7. Georshift lever .See page 12
8. Ignition switch .See poge 18
9. Lift handle .See poges 13, U
10. Lift handle stop.See page 14
11. Lighting switch button * . . . . . S ee poge 19
12. Throttle lever...See poge 8
Your Cub Cadet Tractor has beer> safety engineered. Thor¬
oughly acquaint yourself with all the instruments and controls
before attempting to start or operate the tractor.
^Optionol Equipment

INSTRUMENTS AND CONTROLS
lllust. 6
Instruments ond controls on the Intomotional Cub Codet 106 ond 126 Tractors.
Broko podol lock...See popes 12, 13
2. Charge indicator.See poge 18
3« Choke control button.. See poge 9
4. Clutch^broke pedal.... • See poges 11, 12
5. Creeper drive shift lever ond housing breother ..See poge 12
6. Electric lift control switch * . S ee page 17
7. Front power take-off clutch lever.See page 16
8t Georshift lever • ..See page 12
9. I gnition switch. S ee page 16
10. Lift hondle.... See pages 13, 14
11. Lift hondle stop. See poge 14
12. Lighting switch button e.See poge 19
13» Throttle lever.. • ... See poge 6
Cigarette lighter *(Not shown) • ... See page 18
* Optionol Equipment
6

INSTRUMENTS AND CONTROLS
IIlust. 7
Instruments and controls on the Intemotionol Cub Codet 107, 12^ and 147 Troctors.
1. Broke pedol lock.See pages 12, 13
Z Clutch-broke pedol.See poges 11, 12
3. Charge indicator .See page 18
4. Choke control button.See page 9
5. Front power take-off clutch lever .See page 16
6. Ignition switch.See poge 18
7. Lift hondle.See pages 13, 14
8. Lift handle stop. S ee poge 14
9. Lighting switch button. S ee page 19
10- Release lever.See page 13
11. Speed control lever.. ....... ..See page 13
12. Throttle lever . S ee page 8
13. Electric Lift control switch * S ee poge 17
Cigarette lighter ♦ (Not shown).Ig
* Optional Equipment
7

BEFORE OPERATING YOUR NEW TRACTOR
Lubricotlon.Lubricote the entire troctor. See pages 27 to 35*
Tires.Check the air pressure. See pages 20 ond 21.
Fuel system.Fill the fuel ionk with gosoline. See pages 9 ond 10.
OPERATING THE ENGINE
1. Fuel tonic (iller cap
2. Fuel tank
3. Carburetor (not seen)
4. Fuel line
lllust. 8
Fuel System
5» Fuel shut'oH valve
6. Fuel strainer
7» Air cleaner
8. Brake lock
THROTTLE LEVER
This lever controls the speed of the engine.
When set in a given position, it will maintain
a uniform engine speed.
When using power take-off operated equip¬
ment, best performance is achieved with the
throttle lever in the ’’Fast*' position.
GOVERNOR
The governor is set at the time the engine
is assembled and should not require readjust¬
ment unless the governor arm is removed or
loosened from the governor shaft. Consult
your International Harvester dealer if the
governor does not function properly.
LIFTING THE HOOD
The tractor hood is arranged to swing up
and forward to make the engine and fuel tank
readily accessible. To raise the hood on the
International Cub Cadet 73 Tractor, take hold
of each side of the hood at the rear, pull out¬
ward, and raise it upward and forward to its
stop. On the International Cub Cadet 106, 107,
126, 127, and 147 Tractors unlatch the hood
latches located at the rear of the hood and
follow the same procedure of the International
Cub Cadet 73 Tractor.
8

OPERATING THE ENGINE
STARTING THE ENGINE
1. B e sure the fuel shut-off valve is open.
Z. Pull the choke control button all the way
out (see I Musi. 5 or 6). 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.
3. Place the throttle lever halfway between
"SLOW^’ and 'TAST'\ See IMust. 5 or 6.
4. To start the engine the clutch-brake
pedal must be pressed all the way down to ac¬
tivate the safety starting switch.
On the International Cub Cadet 107, 127, ond 147
Troctors the speed control lever will return to
neutral when the clutch brake pedal is pressed
all the way down.
International Cub Codet 73, 106, and 126 Tractors:
Check to see that the gearshift lever is in the
neutral position. See lllust. S.
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 any one time. If the engine does not start
within this time, turn the key "OFF" and wait
a few minutes, then try again.
3. After the engine starts, slowly release
the clutch-brake 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
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.
FUEL SYSTEM
FUEL SYSTEM
Fill the fuel tank with clean, fresh, regular
grade gasoline, preferably at the end of each
day's use. This will force out any moisture¬
laden air and prevent condensation in the fuel
tank. Do not mix oil with the gosoline.
The fuel tank filler cap has an air vent.
Keep the vent open at all times to assure
proper flow of the fuel.
Coufionl 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
gas. Do not spill gasoline on a hot engine.
FUEL SHUT-OFF VALVE
Be sure the shut-off valve on the fuel
strainer under the gasoline t^ulk is open.
Screw out the needle stem (Shut-off valve) un¬
til the seat on the stem is tight against the
stop to prevent leakage or seepage when the
valve is in its full-open position.
CLEANING THE FUEL STRAINER AND SEDIMENT BOWL
After every 25 hours of operation, clean
the fuel strainer as follows:
1. Close the shut-off valve. See lllusts. 10 and
10A. Loosen the knurled nut under the sediment
bowl and remove the bowl and screen.
2. Cle«Ln 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.
CARBURETOR ADJUSTMENTS
The carburetor is adjusted at the factory
and under normal operating conditions it will
not require readjusting. However, if the engine
does not operate properly, it is recommended
a new air cleaner be installed before per¬
forming carburetor adjustments. If this ad¬
justment has been disturbed for any reason,
proceed as follows:
9

FUEL SYSTEM
Carburetor and fuel strainer
I. Governor control rod
Z Idle odjustment screw
3. Throttle stop screw
4. High speed adjustment screw
Mlust. 10
(International Cub Cadet 73 Tractor)
5« Fuel shut*oH valve
6» Sediment bowl
7. Fuel line
6. Air cleaner
lllust. 10A
(Intemotionol Cub Codet 106, 107, 126, 127,
ond 147 Tractors)
Adjusting the Idle Adjustment Screw
After the high speed adjustment screw is
adjusted, it may be necessary to readjust the
idle adjustment screw (IHusts 10 ond 10A), as
each affects the other.
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.
While the engine is running at fast idle
speed, it is advisable to screw in the throttle
stop screw(Mlusts. 10 ond 10A)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.
If the engine misses 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.
Adjusting the High*Speed Adjustment Screw
Turn the high speed adjustment screwdllusts.
ID and 10A) counter-clockwise approximately two
turns from the closed position and start the
engine.
After the engine has reached normal oper¬
ating temperature, accelerate the engine and
check its response.
Place the engine under load and turn the high
speed adjustment screw (lllusts. 10 and 10A)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 1/4 turn at a time until the
condition is corrected.
If the engine shows a sooty exhaust and is
alugglsh 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.
10

DRIVING THE TRACTOR
PREPARING THE TRACTOR FOR EACH DAY'S WORK
Check the crankcase oil level and add new
oil if necessary. Set pog« 27«
Clean the air cleaner element if necessary.
See page 17.
Inspect the tires for general condition. See
pages 20 ond 21.
ADJUSTING THE SEAT
MA mir
lllust. 11
Adjusting the seat
(Intemotional CubCodet 106,107,126,127, ond 147Troctors)
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. 11)or seat spring clamping plate
(lllust. 11 A) and slide the seat assembly for¬
ward or rearward to the position which is most
comfortable for the operator.
Ketighten the cap screws after the seat is
adjusted.
The International Cub Cadet 106, 107, 126,
127, and 147 Tractors features a seat which
can be tilted forward over the steering wheel,
for convenience in adjusting the seat and
access to the tool box. See lllust. II.
lllust. 11A
Adjusting the seat
(intemotional Cub Codet 73 Tractor)
CLUTCH AND BRAKE PEDAL
* MA-t499
lllust. 1IB
Brake pedol lock in the engaged position.
11

DRIVING THE TRACTOR
International Cub Cadet 73,106 and 126 Tractors
CLUTCH-BRAKE PEDAL
The combination clutch-brake pedal is used
to disengage the engine from the transmission
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.
To disengage the clutch, and apply the
brake, press the pedal all the way down.
LOCKING THE BRAKE
Always lock the brake when the tractor is
parked on a grade. To lock the brake, press
down on the pedal; then place the pedal lock in
the engaged position. To disengage the lock,
press down on the pedal, lift the lock up, and
place it in the disengaged position. See lllust.
IIB.
GEARSHIFT LEVER
This lever is used to select various gear
ratios provided in the transmission. There
are three forward speeds and one reverse
speed. See lllust, 5. Refer to "SPECIFICATIONS'*
on page 35.
STARTING THE TRACTOR
1, Advance the throttle lever slightly. See
lllust. 5,
2, Disengage the clutch by pressing the
clutch pedal all the way down, and release the
brake lock. Move the gearshift lever to the
desired speed.
3, Start the tractor in motion by slowly
releasing the clutch pedal and moving the
throttle lever to the position where the engine
operates best for the load to be handled.
Note: When using power take-off operated
equipment, best performance is achieved with
the throttle lever in the "Fast" position.
Note: Do not shift gears while the engine
clutch is engaged or while the tractor is in
motion.
Note: Do not rest your foot on the pedal
while driving the tractor, as this will result
in excessive clutch lining wear.
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.
STOPPING THE TRACTOR
Disengage the clutch by pressing the pedal
all the way down. Move the gearshift lever
to the "N" position. Before dismounting
always lock the pedal, disengage the power
take-off, and turn the ignition "OFF".
CREEPER SHIFT LEVER
The creeper drive (optional) 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
lllust. S,
OPERATING THE CREEPER DRIVE
To operate the tractor in creeper drive,
depress the pedal and move the creeper shift
lever (lllust. 5) all the way rearward. Then
select the transmission speed desired and pro¬
ceed as instructed under "Starting the Trac¬
tor".
Note: Do not use a mid-point position on the
creeper drive as neutral. Neutral position
must be selected only with the standard trans¬
mission gearshift lever.
The following table shows the speeds avail¬
able in each of the three forward gears and the
reverse gear.
SPEED TABLE
Miles Per Hour
Gear
Direct
Creeper
Drive
Drive
First 2. 3 . 6
Second
3.9
1.0
Third
6.8 1. 7
Reverse 2, 5 . 6
12

DRIVING THE TRACTOR
(International Cub Cadet ^ 0 ^, 127, and 147 Tractors)
the tractor is used to hold the rotary tiller
back rather than to pull the unit» as in plow¬
ing or mowing.
4. Move the speed control lever back to a
position to maintain proper mulching of the
soil.
5. With a hydrostatic drive, it may be nee-*
essary to vary the speed control lever as the
soil conditions vary. With a gear driven trac¬
tor, under similar conditions, it may be neces¬
sary to declutch or to use the brake.
STARTING THE TRACTOR
1. Depress the brake pedal and release the
brake lock. Move the throttle lever to the posi¬
tion where the engine operates best for the
load to be handled.
2. Start the tractor in motion by moving the
speed control lever slowly forward or rear¬
ward as described above.
RELEASE LEVER
BRAKE PEDAL
The brake pedal must be pressed all the
way down to activate the safety starting switch.
When the brake pedal is in the depressed posi¬
tion it automatically moves the speed control
lever to the ''N" position.
The tractor can be stopped either by press¬
ing the pedal all the way down, or placing the
speed control lever in the "N*‘ position.
LOCKING THE BRAKE
Always lock the brake when dismounting
from the tractor. To lock the brake* press
down on the pedal; then place the brake pedal
lock in the engaged position. Seelllust. 11B. To
disengage the lock* press down on the pedal*
lift the lock up and place it in the disengaged
position.
SPEED CONTROL LEVER
This lever is used to select any speed from
a standstill position to eight miles per
hour in the forward direction and to four miles
per hour in the reverse direction.
Moving the speed control lever forward
provides increased forward speed, and moving
the lever rearward provides the reverse
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'' position.
Note: On tractors with a rotary tiller the
following instructions are required.
1. Engage the Power Take-Off clutch,and
move the throttle to
2. Lower the rotary tiller to the desired
cutting depth.
3. Move the speed control lever to start for¬
ward motion. Note: In rotary tilling application*
To push or move tractor for a short distance
or when working on the engine, the release
lever (lllust. 7) must be locked in the release (up)
position and the speed control lever must be in
the position. Coutron: Do Not Tow.
STOPPING THE TRACTOR
Move the speed control lever to the '’N”
position or use the brake. Before dismounting
always lock the pedal, and turn the ignition
mqfF”.
HITCHING EQUIPMENT TO THE TRACTOR
Drawbar equipment must be hitched to the
tractor only at the hitch hole in the drawbar.
See lllusfs. 14 and 14A.
When the tractor has a three-point hitch
(lllusts. 14 ond 14A) equipment adaptable is raised
and lowered with the lift handle or power lift
control. 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.
13

HITCHING EQUIPMENT TO THE TRACTOR
1. Lift hondl*
2. Lift lev^r
3. Drowbar
4. Thr«t«point hitch
IDust. 14
Drawbar ond three-point hitch
shown on Internotionol Cub Cadet 73 Tractor.
The lift handle is used to lift or lower
equipment used with the tractor. The equip*
ment can be set in various positions by
depressing the button on the top of the handle
and releasing it when the desired position is
reached.
To operate equipment in the “FLOAT*’
position» depress the release button on top of
the handle» press in the lock button located at
the front of the handle and release the top
button. See lllus^ 14A.
1. Release button
Z Lock button
3. Lift handle
4. Lift handle stop
lllust. 14A
Ad|UStoble stop limiting handle travel.
Note: To disengage the lift handle from the
float position, pull lift handle back slightly and
depress top button.
When the equipment is allowed to float, the
forward position of the lift handle can be
limited by the adjustable stop. Loosen the nut.
slide the stop to the required position, and
tighten the nut. See lllust. 14A.
Refer to the equipment manual for proper
hitching instructions.
FRONT QUICK.ATTACHING LATCH
This latch (lllust. 21) is used for front and
center mounted equipment. Refer to the equip*
ment manual for proper instructions.
14

REAR POWER TAKE-OFF
International Cub Cadet 73, 106 and 126 Tractors
AU-)502a
ItIusK ISA
Intemotional Cub Cod«t 106 ond 126 Tractors
1» Shifter rod
2s Power takt«off guard
3, Grease fitting 2«
Depress the pedal and move the trans*
mission gearshift lever to the neutral position
lllusta 15
International Cub Codet 73 Tracto
3, On the International Cub Cadet 73 Tractor: Press
down on the shifter rod (lllust» 15) and move it
rearward to the engaged position. Then release
the shifter rod and allow it to lock in place.
If your tractor is equipped with a rear power
take*o£f, the following instructions should be
carefully studied and followed.
On the International Cub Codet 106 and 126 Troctors:
Move the shifter lever {Illust. 15A) forward to the
engaged position.
The rear power take-off is started and
stopped by the same engine clutch as the trac
tor. Be sure to disengage the engine clutch
before moving the power take-off shifter rod
(Illust. 15) or shifter lever (Illust. ISA).
4. Move the throttle lever toward the
position and slowly release the pedal.
Caution! The shifter rod should always be in
the disengaged (forward) position or the shifter
lever in the disengaged (rearward) position
when the power take-off is not in use. Always
cover the power take-off exposed shaft with
the guard when the power take-off is not being
used.
OPERATING THE REAR POWER TAKE-OFF WITH
TRACTOR IN MOTION
Follow steps I thru 3 outlined above. Keep
the pedal depressed, move the transmission
gearshift lever to the speed desired and ad¬
vance the throttle lever. Slowly release the
clutch pedal. This will start the tractor in
motion with the power take-off in operation.
OPERATING THE REAR POWER TAKE-OFF WITH THE
TRACTOR STANDING STILL
1. Move the throttle lever back to the
SLOW^* speed.
15

FRONT POWER TAKE-OFF
OPERATING THE FRONT POWER TAKE-OFF CLUTCH INSTALLING AND REMOVING DRIVE BELT
1. Move the throttle lever back to the me¬
dium or ’'slow" position.
2. Move the control lever forward slowly
to the engaged position. See lllust. 5 or 6.
3. Advance throttle to operating speed.
Note: The control lever should olwoys be ploced in the
(orword or engaged positron when the tractor is being used
without front power take«off equipment.
ADJUSTING THE CLUTCH RELEASE LEVER
lever weor button ond pressure spring thrust button.
The clutch is factory adjusted and should
not require further adjustment under normal
operating conditions. However, if clutch slip¬
page should occur, see your International
Harvester dealer.
After considerable use, it may be necessary
to readjust the button clearance as described
below to assure proper clutch engagement.
With the clutch fully engaged (clutch lever
in the forward position) place a piece of thin
cardboard (match book cover) approximately
1/64-inch thick between the engaging lever
wear button "A" and the pressure spring thrust
button "B" (lllusf. 16), loosen the jam'nut on the
clutch lever turnbuckle. and adjust the turn-
buckle until a light drag is felt on the card¬
board when it is removed from between the
buttons. Be sure all slack, except the 1/64-
inch adjustment, is out of the linkage. Then,
tighten the jam nut securely against the turn-
buckle.
1. Power toke-off clutch lever
2. Clutch lever bolt
lllust. 16A
International Cub Cadet 73 Tractor
1. Clutch lever bracket
2. Clutch lever rod
lllust. I6B
International Cub Cadet 106,107,126,127, ond 147 Tractors
For the International Cub Cadet 73 Tractor,
loosen the clutch lever bolt (lllust. 16A) so the
lever can be moved forward to a horizontal
position.
For the International Cub Cadet 106, 107,
126. 127 and 147 tractors, disconnect the clutch
lever rod from the bracket. See lllust. 16B.
The above procedure will provide sufficient
clearance between the engaging lever wear
button "A" and the pressure spring thrust
button "B" to install or remove the drive belt.
See lllust. 16.
After installing a new belt, move the clutch
lever back onto the clutch lever latch and
tighten the bolt, (lllust. T6A), or reattach the
clutch lever rod to the bracket, (lllust. 16B) de¬
pending on the model tractor you have. Check
button clearance and adjust if necessary.
16

ELECTRIC LIFT
MA-tSO^A
1. End clevis locking clip
2. SoMy guard
Illust. 17
Electric lift ossembled on tractor.
The electric lift is a self-contained unit
designed to provide power with fingertip con¬
trol for raising and lowering center mounted
equipment.
OPERATING INSTRUCTIONS
The electric lift is operated by a control
switch located on the upper righthand corner
of the instrument panel. To raise the imple¬
ment push upward on the control switch until
the desired height is reached, then release the
ENGINE COOLING
ENGINE COOLING
This tractor has an air cooled engine. Air
must be able to circulate freely around the en¬
gine, through the screen and shroud, and over
the fins of the cylinder head and cylinder block.
Keep these areas free of accumulated dirt and
trash or the engine will overheat and result
in damaged moving parts. Periodic cleaning
with compressed air will keep this area clear
for adequate cooling.
DRY TYPE AIR CLEANER
Incoming air for combustion is filtered by
a dry-type air cleaner having a filter element
inside of the cover.
Remove and clean or replace the element
with a new one when loss of power is notice*
able. Replace at least once a year.
switch. The switch will return to the center
or neutral position. The equipment will “bold*'
in whatever position desired when you release
the control switch. To lower the equipment
push down on the control switch. The switch
will again return to the center or neutral posi¬
tion when you release it.
Note; Always operate the electric lift with
the tractor engine running. Operation of the
electric lift off of the battery only will cause
premature battery failure.
Caution! Whenever raising or lowering equip¬
ment release the control switch when the
equipment has reached a fully raised or
lowered position. Not doing so can result in
damage to the electric circuits.
Note: Never operate the electric lift with
the safety guard removed.
To operate equipment in 'Vigid** position,
the end clevis locking clip must be in the
locked position as shown in Mlusf. 17.
To operate equipment such as a mower in
**floot*' position, raise the end clevis locking
clip to the unlocked position. See lllusL 17.
AND AIR CLEANER
lllust. 17A
Removing the air cleaner filter element.

ENGINE COOLING AND AIR CLEANER
Cleoning the Element
To clean the element, remove the wing nut,
washer, and air clecLner cover (lllu&t. 17A) then
remove the element and tap it lightly on a flat
surface to cause the loose dirt to fall off.
Handle the paper element with care to avoid
perforations. Do not use compressed air to
remove the dirt as this can rupture the ele¬
ment. Do not wash or use a solvent.
Replacing the Element
Replace the element with a new one if dirt
does not drop off easily, or if it is bent,
crushed or damaged. When replacing the ele¬
ment be sure the back plate is securely tight¬
ened to the carburetor. Replace the back plate
if bent or cracked, then be sure the element
fits snugly around the inside edge of the air
cleaner base. The gasket surfaces of the ele¬
ment must be flat against the back plate and
cover to seal effectively. The washer must be
in place between the cover and the wing nut to
seal and prevent unfiltered air from entering
through the hole in the cover. Then replace
the cover and tighten the wing nut finger tight.
ELECTRICAL SYSTEM
The twelve-volt electrical system consists
principally of a motor-generator, voltage regu¬
lator, and a twelve-volt battery.
All connections must be clean and securely
fastened.
IGNITION SWITCH
Turn the key clockwise to turn on the igni¬
tion. A further turn actuates the motor-genera¬
tor, The key cannot be removed when in the
position.
Note: When the engine is not operating the
key must be turned to the '’OFF’’ position to
prevent battery discharge.
SAFETY STARTING SWITCH
The safety starting switch, activated by the
clutch-brake pedal, serves to prevent starting
the engine accidentally.
CHARGE INDICATOR
This instrument (lllust. 6) indicates whether
the motor-generator is charging or the battery
is discharging. If it shows discharge continu¬
ously, investigate the cause to avoid completely
discharging the battery and possible damage to
the motor-generator.
CIGARETTE LIGHTER (OpHonol)
Push the lighter to make electrical contact.
When it pops back it is ready for use.
SPARK PLUG
Note: Remove all dirt from around the spark
plug before removing.
Remove the spark plug, always using a
spark plug wrench, after every 100 hours of
operation to check the gap. See lllust. 18.
lllust. 18
Checking the spark plug gop.
Set gap of .025-Inch.
Be sure the gasket is in good condition.
Tighten the plug 1/2 to 3/4 turns past finger
tight.
Replace a defective plug with a new plug.
See your International Harvester dealer for a
correct replacement plug.
18