Case IH Farmall C Tractor Operator’s Manual Instant Download (Publication No.1004194R2)

1
Farmall C Tractor Operator Manual
1004194R2
eprRi ted
2
THIS SAFETY ALERT SYMBOL INDICATES IMPORTANT
SAFETY MESSAGES IN THIS MANUAL. WHEN YOU SEE THIS
SYMBOL, CAREFULL Y READ THE MESSAGE THAT FOLLOWS
AND BE ALERT TO THE POSSIBILITY OF PERSONAL
INJURY OR DEM H B
If Safety Decals on this machine use the words
Danger, Warning or Caution, which are defined as
follows 0 DANGER Indicates an immediate
hazardous situation which if not avoided, will
result in death or serious injury. The color
associated with Danger is RED. 0 WARNING
Indicates an potentially hazardous situation
which if not avoided, will result in serious
injury. The color associated with Warning is
ORANGE. 0 CAUTION Indicates an potentially
hazardous situation which if not avoided, may
result in minor or moderate injury. It may also
be used to alert against unsafe practices. The
color associated with Caution is YELLOW. If
Safety Decals on this machine are ISO two panel
Pictorial, decals are defined as follows
0 The first panel indicates the nature of the
hazard. 0 The second panel indicates the
appropriate avoidance of the hazard. 0
Background color is YELLOW. 0 Prohibition
symbols such as
and if used, are RED.
X
WA I IMPROPER OPERATION OF THIS MACHINE CAN CAUSE
INJURY OR DEATH. BEFORE USING THIS MACHINE, MAKE
CERTAIN THAT EVERY OPERATOR 0 Is instructed in
safe and proper use of the machine. 0 Reads and
understands the Manual(s) pertaining to the
machine. G Reads and understands ALL Safety
Decals on the machine. M Clears the area of other
persons. G Learns and practices safe use of
machine controls in a safe, clear area before
operating this machine on a job site. It is your
responsibility to observe pertinent laws and
regulations and follow Case Corporation
instructions on machine operation and maintenance.
2001 Case Corporation
Bur 0-00000 issued November, 1994
CASE and IH are registered trademarks of Case
Corporation
3
IMPORTANT FUEL SYSTEM SAFETY WARNING AND ANNOUNCEM
ENT OF FREE, REPLACEMENT GASOLINE CAP CAUTION !
The following information pertains to personal
safety. Be sure to read and follow these
instructions.
PRECAUTIONS Observe the following steps for
safe operation Always tighten gas caps
securely.
PROBLEM Gasoline vapors can build up pressure
in your gasoline tank.
All gasoline fuels are more volatile today than
ever before. They vaporize and build up pressure
in your gasoline tank more easily than in the
past. Winter grade gasoline is especially subject
to va- porization and pressure build-up when used
on hot Spring or Fall days. If you have a tractor
which is out of tune or not properly maintained,
it can run hotter and increase vaporization.
Never, under any circumstances, take the gas
cap off a hot or running tractor.
Never hold over Winter gasoline for use in the
Spring. Remove any equipment unnecessary for warm
weather operations, such as comfort covers, heat
housers, or radiator covers.
Maintain equipment properly and pay particular
attention to electrical, exhaust, fuel, and
cooling systems. Repair or replace frayed
electrical wires leaky exhaust manifolds,
gaskets, pipes and mufflers damaged carburetors,
sediment bowls and fuel lines. Be sure radiators
are clean inside and out. Clean off any
accumulation of trash,oilorgrease.
DANGER Fire and personal injury.
If the fuel cap is removed when the gasoline tank
is hot and vapor pressure has, under certain
circum- stances, built up in the tank, this
sudden release of pressure could force gasoline
out of the tank. If the gas cap is not fully
secured and tightened, it could come off the
tank, and again, gasoline could es- cape. This
sudden eruption of gasoline exposes the operator
to, and may cover him with, liquid fuel and
vapors and is a clear fire hazard if a source of
ignition is present. A running engine is a source
of ignition, as are cigarettes, open flames,
sparks or a poorly maintained exhaust system. An
immediate fire could occur. The operator or
anyone in the area could be burned and suffer
serious injury or evendeath.
Make sure that fuel cap vent holes are not
plugged, gaskets are in good condition, and that
cap tangs are firmly riveted. Repair worn, bent,
or deformed filler necks and damaged heat shields
or shield insulation. If your tractor is not
equipped with a heat shield or insulation,
install such equipment on applicable models.
Be alert to any unusual sights and sounds dur-
ing operation. If you suspect overheatihg or
pressure build-up in the fuel system, do not
touch the cap. Turn off the engine and allow the
tractor to cool before you touch the cap.
4
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FREE GASOLINE CAP See your dealer today.
New caps will be exchanged free of charge with
owners of certain models of International
Harvester farm tractors. To see whether your
tractor already has the new cap or to arrange to
obtain one, simply contact your local
International Harvester dealer. Also ask him
for a free International Harvester brochure
New Facts About Fuels" and for free Warning"
decals for all gasoline equipment.
International Harvester has developed a new
gasoline cap designed to improve vapor venting
and to inhibit the sudden eruption of liquid fuel
if the safety precautions against cap removal are
not observed.
NOTE New cap will not fit on any of these
tractors.
Gasoline Tractor Models Included in Cap Exchange Program (See Note) Gasoline Tractor Models Included in Cap Exchange Program (See Note) Gasoline Tractor Models Included in Cap Exchange Program (See Note) Gasoline Tractor Models Included in Cap Exchange Program (See Note)
A 100 504 2404
AV 130 F-544 Only 2424
B 140 560 2444
BN 200 600 2504
C 230 606 2544
H 240 650 2606
HV 300 F-656 Only 2706
M 330 660 2756
MV 340 666 2806
0 350 686 2826
OS 400 706 2856
W 404 756
WR 424 766
70 444 806
86 450 826
460 856
B-275 1-434
B-276 1-544
I -284 1-656
I -354 1-2656
B-414
New cap will not fit on these tractors above
serial numbers shown. F-504 above serial No.
13400 I -504 above serial No. 14272 I -606 above
serial No. 6879 I -2606 above serial No. 6879
New cap will not fit on any lawn and garden
tractor in the Cadet model series or on any
tractor with the gasoline tank behind the
operator's seat.
6
C 0 H T E N T S
Description
Page No.
IN DelivU repoNt (to be filled in when tractor
is delivered) . . . .............................
Front Cover
General . ........................................
......................................... Serial
numbers, engine and chassis . . . . .
..................................................
.
2 2
DSCRIPTI ON Before starting the tractor . . . .
. . . . ..........................................
..... ........ 7 Instruments and controls . . .
.. . . ...........................................
............... 4 to 6 Preparing the tractor for
each day's work . . . ............................
................... 8 Views of the tractor . . .
. . ..............................................
................... 3 OPERATING YOUR
TRACTOR Driving the tractor . . . . . .
..................................................
............... Operating a gasoline etgine . .
. . . . ..........................................
.............. Operating a distillate engine . .
. . ................... ..........................
............. Operating a distillate engine on
gasoline . . . . . . . ...........................
................ Operating a kerosene engine .
..................................................
........... Operating the belt pulley and power
take-o . . . ....................................
........ Operating the Farmall Touch-Control
system ...........................................
.... LUBRICATION Engine and chassis lubricant
specifications . ..... ...........................
................ 27 General engine lubrication .
. . . . . . . . . ................................
..................... 20 Greasing the front
wheels ...........................................
...................... 28 Lubrication guide . . .
. . . . ..........................................
....................... 22 to 26 Lubricating oil
and grease specifications . . . .
...............................................
28 Oil filter . . . . ............................
.................................................
20 MAINTENANCE Adjustable front axle . . . . . .
. ............................. ... .
.. . . . ...
..... 6162, Adjusting front and rear wheel
treads............................................
.......... to to 63 Adjusting the drawbar . .
....... , , ......................................
................... 5g, 59 Air cleaning system
..................................................
..................... 36 Battery ignition unit .
. . ..............................................
..................... 37 Brakes .
..................................................
................................ 56 Carburetor .
. ................................................
............................. 3tj Clutch . . . .
..................................................
............................. 57 Cold weather
precautions . . . ................................
.............................. 32 Cooling system
..................................................
......................... 33 Farmall
Touch-Control system . . . . . . .
..................................................
... 6566, Fuel strainer . . . . . . .
..................................................
.................... 30 44 and 49 41 29, 30 63 to
65 63 75 37 44 and 48 46 and 51 53 7O, 7 I 67 to
70 55 59 to 63 47 and 52 72 8o 82
15 10 12 14 14 17 18
Generator ........................................
...... ............... .. . .. ........
Magneto (tractors so equipped) . .. .
.................................... ....
... .......
Periodic inspections . ...........................
..........................................
Pneumatic tires ..................................
......................................... Seat .
. . . . . . ......................................
........................................ Seed
plate drive . . .. . .............................
........................................
Spark plugs and cables . . . . . . .
.................................. .
.. .. .... . .....
Starting and lighting equipment . .
..................................................
.......
Starting motor . . . . . . .......................
.............................................. Sto
rage battery . . .................................
........................................ Storing
and housing your tractor . . . ...................
........ ... . . .
........ Trouble shooting.........................
................................................ V
alve clearance adjustment . ......................
............................. ...........
beels ...................... Wiring diagrams
(starting and

• ... ........................................
• ............. ......................... ......

SP sCIAL EQUIPM sNT . ............................
......................................... SPECIFIC
ATIONS . . . .....................................
................................... COMPREHENSIVE
INDEX . . ................................. .
...... ...... . ... ... ....
7
I N T R 0 D U C TI O H Assembled in this book are
operating and mainte- nance instructions for the
Farmall C. This material has been prepared in
detail in the hope that it will prove helpful to
you in providing a better under- standing of the
correct care and efficient operation of your
tractor. If you should need information not given
in this manual, or require the services of a
trained me- chanic, get in touch with the
International Harvester dealer in your locality.
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
facilities of a nearby Inter national Har- vester
District O lhce. Throughout this manual the
use of the terms LEFT, RIGHT, FRONT, and REAR
must be under- stood to avoid confusion when
following instruc- tions. 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, and REAR the drawbar.
tractor. The serial number is preceded by
the
The illustrations in this manual are numbered to
correspond with the pages on which they appear
for example, Illusts. 6 and 6 A are on page
6. When in need of parts, always specify the
tractor and engine serial numbers. The
tractor serial number is stamped on a name plate
attached to the tool box and seat support on the
right side of the
letters FC. See illest. 2. The engine serial
number
is stamped on the right side of the engine
crankcase above the battery ignition unit. This
serial number is preceded by the letters FCM.
See illest. 2A. For ready reference we suggest
that you write these serial numbers in the spaces
provided below.
Tractor serial number
Engine serial number F C M
F C
Location ol tractor serial number.
Location of en gine serial n umber.
8
D E S C RI P TI 0 N
Illust. 3 Right front view of the Farmll C.
Illust. 3_at_ Left front view of the Fermall C.
9
DESCRIPTION Instruments and Controls A variety of
special equipment is available for use with the
Farmall C.
The instructions
for operating and maintaining the special
equipment have been included in the instructions
for operating and maintaining the tractor. not on
your tractor.
Disregard the instructions for special equipment
levers
(iearshift ever
Starter
edal
I, i swi(ed buttoa
Fuse
Oil pressure '
pedals Brake pedal latch
Brake pedal lock
Illust. 4 Location of contro(s.
Brake Pedals These pedals are used to stop the
tractor, to hold the tractor in a stationary
position, or to assist in making sharp turns as
outlined below To stop the tractor, depress both
pedals at the same time. Before driving the
tractor in high gear always latch the pedals
together. 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. To assist in making a
sharp turn, operate the
pedals individually, depressing the pedal on the
side toward which the turn is to be made. The
brake pedal latch Illusts. 4 nd 17) is used to
latch both brake pedals together, causing the
brakes to operate simultaneously. The brahe pedal
loch (Illust. 17) is used to lock the brake
pedals in the depressed position which preys-nts
the tractor from moving.
Clutch Pedal This pedal, when depressed all the
way, dis- engages the engine from the
transmission.
10
DESCRIPTION Oil Pressure Indicator
Choke Rod
The choke rod makes it possible to regulate the
carburetor choke from the driver's seat.
Pulling out on the choke rod closes the
carburetor choke for starting the engine pushing
it back in opens the choke. Carburetor bloke
Lever (Tractors without Starting IVtotor) The
carburetor choke lever controls the air supply to
the carburetor. When the choke lever Illnsts. 9
and J J A) is moved down all the way (closed
position), the air supply is cut oil, thereby
enriching the fuel mixture for starting the
engine. If your tractor is not equipped with a
starting motor and choke rod, move the
carburetor choke lever down all the way before
cranking the engine. Moving the choke lever back
up opens the choke for normal engine operation.
Illust. 5A Location of oil pressure indicator.
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. The rated
or maximum full load governed speed is 1400
r.p.m. maximum idle speed is approximately 1540
r.p.m. minimum idle speed (hand throttle) is 500
to 5 50 r.p.m. with the engine speed control
lever fully retarded. See illest. 5. Never
operate the en- gine at more than the regular
governed speed. Ex- cessive speeds are
harmful. The governor is set at the factory and
should require no adjustment. Consult your
International Harvester dealer if the governor
does not function properly. orfe tllird Aévance
This indicator illest. SP) shows whether lubri-
cating oil is circulating through the engine.
The indicator needle should be in the white area
when the engine is running illest. SB). LI it
is not in the white area, stop the engine
immediately and investigate the cause of the oil
pressure failure. If you are unable to find the
cause, be sure to consult your International
Harvester dealer before operating the engine.
Illust. SB Oil pressure indicator, showing needle
in correct operating position
Ignition Switck Button This button closes and
opens the electrical circuit for operating and
stopping the engine. Pull the button out for
operating and push it in to stop the engine.
etar8ed
Starter Rod To start the engine, adjust the choke
rod and pull out on the starter switch rod as
explained on page 10.
Illust. S Various positions of the engine speed
control lever.
5
11
DESCRIPTION Belt Pulley and Power Take-OÈ Control
Rod
Gearslift Lever
This lever is used to select the various gear
ratios in the transmission. There are four
forward speeds and one reverse speed. See
illest. 6.
The shifter rod is used to engage or disengage
the belt pulley or the power take-o. JteJer ro
page 17 for operating instructions.
THIRD REED FOR\P'Ak0
rjpy SPEED FORWA9D
Radiator 3kutter Control Lever
The control lever opens and closes the radiator
shutter, controlling the engine temperature.
Pull the lever all the way back to close the
shutter and move the lever forward to open the
shutter. Wrote Tractors with gasoline engines
are not regularly equipped with this feature.
Heat lndicator This indicator illest. 6N)
registers the tempera- ture of the liquid in the
cooling system. The indica- tor pointer should
be in the center of the RUN range (fJfosr. 6N)
for engines using distillate or kero- sene for
fuel, and on the low side of the RUN range for
engines using gasoline for fuel. Note Tractors
with gasoline engines are not regularly
equipped with this feature.
OURTH FOR'\"A9D
SECOND 7O9WA9D
iilust. ó Gearshift positions.
The switch has three positions Ddim lights
"Bbright lights and Oo.
Ammeter This instrument indicates the charging
rate of the generator or the discharge rate of
the battery. If it shows discharge
continuously, investigate the cause to avoid
completely discharging the battery and
possible damage to the generator. Refer to
pages 44 No 54 for additional information on
electrical equipment.
Illust. 6A Heat indicator in correct operating
position whan operating on distillate or kerosene.
IVtanifold Heat Control Never
This control lever Illest. 7) is used only on
dis- tillate or kerosene engines. For normal
operation set the lever in the top notch (hot)
position. If the distillate or kerosene engine
is to be operated on gasoline, set the control
lever in the bottom notch (cold) position, and
remove the manifold shield. For complete
instructions refer to pages 13 and 14.
Toucl-Control Levers These levers illest, 4)
operate the Farmall Touch- Control system. This
system raises, lowers, and reg- ulates the
working depth of the various implements used
with the tractor. For complete instructions
refer to pages 18 and 19.
12
DESCRIPTION Be sure the radiator drain illest.
35) is closed, then fill the radiator to a level
approximately 2 inches below the top of the
filler neck. Filling the radiator 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 the passages. For further
information see Cooling System page 33). If
the tractor is to be operated in freezing
temperatures (3 2 F. or lower) refer to hold
Weather Precautions on pages 32 and 33.
Illust. 7 Heat control velye set in hot position
(distillate or kerosene engines only).

• Fuel System
• Provision is made in the design of this tractor
  so that it may be equipped with either a
  gasoline, dis- tillate, or kerosene-burning
  engine. Before attempt- ing to use a fuel for
  which your tractor is not de- signed, see your
  International Harvester dealer or the nearest
  International Harvester Company District Office
  for full details.
• To obtai n best results, use the fuel for which
  the tractor is designed, follow the operating
  instructions given for that fuel and observe the
  following pre- cautions
• Distillate fuels should conform to International
  Harvester Company specifications (see your I
  nter- national Harvester dealer).
• Distillate or kerosene-burning tractors should
  not have the shut-off valve under the auxiliary
  tank and the one under the main fuel tank open or
  even partially open at the same time, as this
  will permit the distillate or kerosene to mix
  with the gasoline, making the engine hard to
  start.
• During the first 100 hours of operation, mix one
  pint of light engine oil with every five U. S.
  gal- lons of fuel.

Before Starting Your New Tractor
Lubrication Lubricate the entire tractor, using
the Lubrica- tion Chart page 22) as a
guide. Check the oil levels of the engine
crankcase, air cleaner, transmission, belt
pull.,.y housing, and all gear cases to see that
they are filled to the correct levels with the
proper grade of oil for the prevailing
cempezatuze. ReJer to the brication Guide on
page 22, and to S pecifications off Lu6ricocZs
nor pages 27 and 28. Tractors shipped to
destinations in the United States of America,
Canada and klex ieo are filled with oil in all
parts before leaving the factory. Engines are
filled with a light engine oil. Tractors pached
for export have all oil drained from the engine
crankcase, air cleaner and all gear cases. Before
starting the engine for the first time, remove
the spark plugs and put about one teaspoonful of
crank- case oil into each cylinder replace the
spark plugs and crank the engine to distribute
the oil over the cylinder walls. This assures
positive lubrication of the cylinders and pistons
immediately after starting and eliminates the
possibility of scoring.
IgnitionElectrical Tractors shipped from the
factory with starting and lighting equipment have
the battery to ground cable illest. 54A j
disconnected and taped. There- fore, before
attempting to start the engine, be sure the
battery to ground cable is connected to the
ground.
Pneumatic Tires Before moving the tractor, check
the air pressure in the pneumatic tires and
inflate or deflate the front tires to 28 lbs. and
tJie rear tires to 1 2 lbs. Pte/et- to the
chart on page 63 for more complete information.
Engine Cooling System The cooling system
capacity is approximately 13 U.S. quarts.
Instruments and Controls Thoroughly acquaint
yourself with all instruments and controls as
described on p,ge 4 i d-
7
13
DESCRIPTION Safety First Never fill the fuel
tank when the engine is running or when near an
open flame. Do not smoke or use an oil
lantern when working around inflammable fuels.
When pouring fuel, keep the funnel and container
in contact with the metal of the fuel tank
(f/hit. 8) to avoid the possibility of an
electric spark igniting the gas. Do not light
matches near gasoline, as the air within a radius
of several feet is mixed with a highly explosive
vapor. Cooling System Remove the radiator filler
cap and check the water level. Fill to a level
approximately 24 il2ches below the top of the
filler neck.
Lubrication Air Cleaner Change the oil in the air
cleaner oil cup. Fill to the level mark with
engine oil (capacity /q U. S. pint).
Never refuel tractor while engine is running or
extremely Not.
How to Prepare Your tractor For Eack Day's Work
Engine Crankcase WHEN OPERATING ON GASOLINE,
add sufficient oil to bring the oil up to the
level of the upper test cock in the crankcase
pan. See Illust. 22A. WHEN OPERATING ON
DISTILLATE OR KEROSENE Before starting your
engine for the day's work, open the lower test
cock in the crank- case pan and allow the oil to
drain to this level. Close the lower test cock
and open the upper cock in the crankcase pan.
Add new oil (approximately 1 U. S. pint) until it
appears at this level and then close the cock.
See illest. 22A.
Fuel System Fill the fuel tank (capacity 11 U.S.
gals.) prefer- ably at the end of each day's
work. This will force out any moisture-laden air
and prevent condensation. Tractors designed for
distillate or kerosene operation have an
auxiliary tank (capacity 7/9 U.S. gallon) for
gasoline, which is used only for starting and
warming up the engine. If a distillate or kero-
sene engine is to be operated on gasoline only,
use the large fuel tank for gasoline and either
shut off the small tank or use it as an auxiliary
tank. The filler caps on both fuel tanks have air
vents. These vents should be kept open at all
times to assure proper flow of the fuels. See
illest. 8A.
Grease Fittings Refer to Lubrication Guide
(pages 22 re 28) for complete daily lubrication
requirements.
Periodic Inspections ReJer to pages 29 and 30.
tttuA. 8 Filling the fuel tenk.
Vent holes in Aller cap.
14
OPERATING YOUR TR AC7OR
Before attempting to start or operate the
tractor, be sure that you have checked over the
instructions for a new tractor and thoroughly
familiarize yourself with the instruments and
controls.
When darting the engine in a barn or garage, keep
the doon wide open as the exhaust gas from
internal combustion engines contains poisonous
carbon monoxide which is odorless, teJeless and
Be sure the gearshik lever of the tractor is
in neutral before starting the engine.
Fuel systemgasoline engine. 9
15
OPERATING YOUR TRACTOR Operating a Gasoline
Engine Radiator Shutter Tractors desig ned for
gasoline engine operation are not regularly
equipped with a radiator shutter but this
feature ca n be supplied. If your tractor is so
equipped, close the radiator shutter when
starting the engine in cold weather then
regulate it as required to hold the needle of
the heat indicator on the low side of the RUN
ra nge. Fuel System Check the gasoline ta nk to
make sure it is full also be sure the shut-off
valve on the fuel strainer under the gasoline
tank is open. To assure against leakage or
seepage when the valve is in its full open
positio n, be sure to screw the needle stem
(shut-off valve) out until the seat on the stem
is tight against the stop.
Illust. 10 Pulling out on the choke rod.

• Starting the Engine with the Starting Motor
• Put the gearshift lever in neutra1 positio
  n.
• See illest. 6.
• Pull the choke rod all the way out. See illest.
  IO.
• Adva rice the engine speed co ntrol lever one-
  third. See illest. 5.
• Pull out on the ignition switch button. See
  illest. IOA.
• Disengage the engine clutch by pressing dow n on
  the clutch pedal. Pull out on the starter rod
  (illest. i ) and release it as soon as the
  engine starts. However, do not hold the starter
  rod out for more than thirty seconds at any one
  time. If the en- gine does not start within this
  time, release the starter rod and wait a minute
  or two then try again. Slowly release the
  clutch pedal after the engine starts.

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.

• Hand Cranking the Engine (Tractors without
  Starting I'totor)
• Put the gearshift lever in neutral position. See
  illest. 6.
• Close the choke by moving the carburetor
  choke lever a11 the way down. See illest. 11 A.
• Advance the engine speed co ntrol lever o ne-
  third. See Illest. 5.
• Pull out on the ignition switch button. See
  Illest. 10A.
• Crank the engine one or two strokes, then open
  the choke part way.
• Crank the engine until it starts. See illest.
  11B.

Illust. 10A Pulling out on the ignition switch
button.
10
16
OPERATING YOUR TRACTOR Cautionl When cranking
the engine, be sure the gearshift lever is in
neutral position and always stand in a position
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 upstrokes do not spin
it. The following instructions oifer
approximate requirements which may be changed to
suit local conditions During warm weather, or
with the engine warm, set the carburetor choke
lever in half-open position and crank the engine,
using quick upstrokes until the engine
starts. During cold weather, or with the engine
cold, close the choke completely by moving the
choke lever down as far as it will go illest. 11
A) and crank the engine with quick upstrokes as
follows
Six to eight lifts of the crank at
temperatures 0 to lO F. Four to five lifts of
the crank at temperatures 10 to 2 0 F. Two to
three lifts of the crank at temperatures 20 to
30 F. Now open the choke halfway and crank
the engine with quick upstrokes until it starts.

Unit Ii disenga ged Illust. 11 Pulling out on the
starter rod.
After time 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 all the way by
gradually pushing the choke rod all the way in
illest. 10) or by moving the carburetor choke
lever up all the way illest. 11 A. Do not use
the choke to enrich the fuel mixture except
when starting the engine. Immediately after the
engine starts, check the oii pressure indicator
(illest. 5Zf) to make sure sufficient 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 unable to find the
cause, con- sult your International Harvester
dealer before oper- ating the engine.
Illust. 11 A Closing the carburetor choke lever
(tractors without starting motor).
Stopping the Engine Reward the engine speed
control lever by pulling it all the way back
illest. 5). Allow the engine to cool slowly
from full-load operation by slowly idling the
engine for a short time. Then push the ignition
switch control button all the way in 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.
17
OPERATING YOUR TRACTOR Operating a Distillate
Engine on Distillate

• Four steps are necessary in operating a
  distillate engine on distillate.
• Setting the ma nifold heat control lever in the
  top notch Hot position.
• See page 13.
• Starting the engine on gasoline.
• Changing over to distillate fuel.
• Changing back to gasoli ne before stopping the
  engine, to insure having gasoline in the fuel
  bowl for the next starting.
• The above steps are fully explained in this
  manual study them carefully.

Radiator Shutter Tractors designed for operation
on distillate are regularly equipped with a
radiator shutter to assist in warming up a cold
engine quickly and to maintain the engine at the
most efficient operating temperature. Distillate
fuels are heavier than gasoline and
therefore require more heat for proper
vaporization. Before starting a distillate
engine, close the radiator shutter
completely. After the engine has been started,
allow it to operate with the radiator shutter
closed until the pointer on the heat indicator is
in the center of the RUN section then regulate
the shutter enough to keep the pointer on the
heat indicator in the center of the RUN
section (i/feel. 6A). The adjustment of the
shutter will vary, depending on the load the
tractor is handling, length of idling
periods, atmospheric temperatures, and the
kind and quality of fuel that is being
used. lmpoitantl Before filling the radiator in
freezing weather, close the radiator shutter
and start the engine then put the water in
the radiator imme- diately. This prevents water
from freezing during the warmingup period.
After the engine has warmed up, adjust the
radiator shutter to maintain the operating
temperature of the engine in the center of
the RUN section on the heat indicator (illest.
6A). Fuel System Check the fuel and auxiliary
gasoline tanks to make sure they are full. Open
the gasoline valve and be sure the shut-off valve
for the main fuel tank is closed. (This shut-off
valve should not be opened until the engine has
been operating on gasoline long enough to be
thoroughly warmed up.)
lllud. 19 Fuel systemdistillate engine.
18
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OPERATING YOUR TRACTOR
Do Not fv'lix Fuels! Do not have the shut-oif
valve under the auxiliary tank and the one under
the main fuel tank open at the same time as this
will permit the distillate fuel to mix with the
gasoline, making the engine hard to start. Before
starting the engine on gasoline, be sure there
is no distillate fuel in the carburetor or in the
fuel strainer.
7. Disengage the engine clutch by pressing down
on the clutch pedal. Pull out on the starter rod
(illest. 11) and release as soon as the engine
starts. However, do not hold the starter rod out
for more tha n thirty seconds at any one time. If
the engine does not start within this time,
release the starter rod and wait a minute or two,
then try again. Slowly release the clutch pedal
after the engine starts.

• Hand Cranking the Engine
• (tractors without Starting fVtotor)
• t. Put the gearshift lever in neutral
  position.
• See illest. 6.
• Open the gasoline shut-off valve under the
  auxiliary gasoline tank and be sure the
  shut-off valve for the main fuel tank is closed.
  See illest. 12.
• Advance the engine speed control lever one
  third. See illest. 5.
• Close the radiator shutter.
• Pull out the ignition switch button. See illest.

• /V\anifold Heat Control
• The distillate engine manifold is designed
  so the hot exhaust gases pass around the intake
  mani- fold and heat the incoming fuel mixture,
  resulting in maximum efficiency under all normal
  operating conditions.
• The manifold heat control valve has three adjust-
  ment positions (1) top notch, HOT position
• center notch, INTERMEDIATE position
• bottom notch, COLD position. See illest. 7.
• With these adjustments, the heat of the manifold
  can be regulated to suit various operating
  condi- tions, which are governed by the
  prevailing air temperature, the load the engine
  is handling, and the kind and quality of fuel
  that is being used.
• When operating the engine on distillate, the heat
  control valve should be set in the top notch,
  HOT position illest. 7). To do this loosen the
  nut on the heat control adjusting lever and raise
  the lever to the top notch. Always keep the valve
  in this position except when the prevailing
  temperature is very high, or when the engine is
  operating with a constant heavy load. I n such
  cases, use either the I NTER- MEDIATE or
  COLD position.
• The manifold should be kept hot at all times to
  properly vaporize the heavy fuels and to
  avoid dilution of the crankcase lubricating oil.

6. Close the choke by moving the carburetor
choke lever all the way down (illest. 11N).
Crank the engine one or two strokes then open
the carburetor choke halfway. Crank the engine
until it starts. Avoid overchoking as excessive
use of the choke will flood the engine, making it
hard to start. For best results follow the
procedure outlined on page 11.
After tle Engine Starts As soon as the engine
starts adjust the choke to a point where the
engine runs without missing. As the engine warms
up, gradually open the choke all the way by
slowly pushing the choke rod all the way in, or
by moving the carburetor choke lever up all the
way. Do not use the choke to enrich the fuel
mixture except when starting the
engine. Immediately after the engine starts,
check the oil pressure indicator illest. SB) to
make sure sufficient 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 unable to find the cause, consult
your International Harvester dealer before
operating the engine.

• Starting the Engine with tle Starting lVtotor
• Put the gearshift lever in neutral position.
• See illest. 6.
• Open the gasoline shut-off valve under the
  auxiliary gasoline tank and be sure the
  shut-off valve for the main fuel tank illest.
  12) is closed.
• Advance the engine speed control lever one third.
  See illest. 5.
• Close the radiator shutter.
• Pull out on the ignition switch button.
• See illest. 10A.

Changing Over to Distillate Fuel When the engine
has operated a while and the needle on the heat
indicator is well into the RUN section, change
over to operate on distillate by tightly
closing the gasoline shut-o valve and quickly
opening the shut-off valve under the main fuel
tank. Do not operate the engine under load until
it is thoroughly warmed up (when the heat
indicator pointer is in the center of the
RUN section see illest. 6A). Adjust the
radiator shutter so as to maintain the needle in
this position.
6. Pull the choke rod all the way out. See
illest.
10.
20
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