Case IH Farmall B Series Tractor Operator’s Manual Instant Download (Publication No. 1008034R4)

1
B-Series Farmall Tractor Operators Manual
1008034R4
2
This syzzi6o/ means ATTENTION! BECOME ALERT!
YOUR SAP-ETY IS INVOLVED. The message that
/o/low's the symbol contains important
inI'ormation about your safety. Carefully read
the message. Make sure you fully understand thé
causes of Rssihle injury or death. SB001

• IF THIS MACHINE IS USED BY AN EMPLOYEE, IS
  LOANED, OR IS RENTED, MAK E SUR E THAT TH E O PE
  RATO R UNDER STAN DS TH E TWO INSTRUCTIONS BELOW.
• BEFORE THE OPERATOR STARTS THE ENGINE
• GIVE INSTRUCTIONS TO THE OPERATOR ON SAFE AND
  CORRECT USE OF THE MACHINE.
• MAKE SURE THE OPERATOR READS AND UNDER STAN DS
  TH E OPERATOR'S MANUAL FOR THIS MACHINE.

• IMPROPER OPERATION OF THIS MACHINE CAN CAUSE
  INJURY OR DEATH.
• BEFORE STARTING THE ENGINE, DO THE FOLLOWING
• READ THE OPERATOR'S MANUAL.
• READ ALL SAFETY DECALS ON THE MACHINE.
• CLEAR THE AREA OF OTHER PERSONS.
• LEARN AND PRACTICE SAFE USE OF MACHINE CONTROLS
  IN A SAFE, CLEAR AREA BEFORE YOU OPERATE THIS
  MACHINE ON A JOB SITE.
• It is your responsibility to observe pertinent
  laws and regulations and to follow manufacturer's
  instructions on machine operation and
  maintenance.
• See your Authorized Case dealer for additional
  operator's manuals, parts cat- alogs, and service
  manuals.

Oc 1995 Case Corporation CASE and IH are
registered trade marks of Case Corporation
3
This manual contains information which will be
valuable to you during the entire life of
your tractor. Rely on your manual for
operating and maintenance information ... and
rely on your International Harvester
dealer when in need of skilled mechanical service
or IH service parts.
INTERNATIONAL HARVESTER COMPANY
180 NonH MCHIGAN Ave.
CHtCAGO 1, ILLI NOIS, U .s.A.
4
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5
TO THEFARMALL O WNER BE SURE THIS OPERATORS
MANUAL IS KEPT WITH THIS MACHINE AT ALL TIMES,
REGARDLESS OF OWHERSHIP. Please accept our
conqratulations on your investment in an Inter-
national Harvester tractor as your new power
partner. We feel sure you will obtain from this
machine the economical and superior performance
it is designed to give. lt is certain that you
will derive a large measure of personal
satislacüon irom operatinq it. Years of tractor
manuïacturinq experience and actual contact with
aqriculturol problems in the field have been
combined with advancements in enqineerinq and
metallurgical science to produce all the features
and refinements built into your fractor.
Properly adjusied, operated, and maintained,
this tractor will respond to every reasonable
demand you make upon it and give you reliable
service for years to come. The purpose of this
Owner's Manual is to explain maintenance
requirements and routine adjustments which are
necessary for the most efficient operation of
your tractor. To protect your tractor
investment, study your Manual beiore startinq or
operatinq your tractor. II you should need
information not qiven in this Manual, or mcguire
the services of o trained mechanic, we urge you
to use the extensive facilities ottered by the
International Harvester dealer in your locality.
Dealers are kept inïormed on the best methods of
tractor servicing and are equipped to provide
prompt, high-class service in tire äeld or in an
up-to-date service station. Dealers carry ample
stocks of essentiel IH parts. Thèse dealers are
backed in every case by the full faciliUes
oï a conveniently located International
Harvester branch. When in need or parts, always
give tb InternaUonal Harvester dealer
uqgest that you write thèse /, for ready
reference when
your tractor and engine serial numbers. serial
numbers in the spaces provided parts are required.
Troctor Serlol No. Eoç/ïne 'erza/
Wo. Reqistered trade-mark. Orly International
Harvectei builds Farmall Traetors. It is fee
polie y of Zniernofiono/ Harvester Coznpony to
improve its products whenever it ss possible end
practical to do so. lVe reserve the sighI to
moke chonyes or odd teapzovements at an y
time writhout incurriny ony obligotson to moke
such changes on irectors sold previousl y.
6
FREE GASOLINE CAP -
See your d e a I e r today
International Harvester has developed a new
gasoline cap designed to improve vapor vent- ing
and to inhibit the sudden eruption of liquid fuel
if the safety precautions against cap removal are
not observed.
New caps will be exchanged free of charge with
owners of certain models of Interna- tional
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 Har- vester brochure New
Facts About Fuels and for free Warning decals
for all gasoline equipment. NOTE New cap will
not fit on any of these tractors.
Gasoline Tractor Models Included in Cap Exchanee Program (See Note) Gasoline Tractor Models Included in Cap Exchanee Program (See Note) Gasoline Tractor Models Included in Cap Exchanee Program (See Note) Gasoline Tractor Models Included in Cap Exchanee 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 B-276 1-284 I-354 B-414
1-434 I-544 I-656 1-2656
New cap will not fit on these tractors above
serial numbers shown. F-504 above serial No.
13400 1-504 above serial No. 14272 1-606 above
serial No. 6879 1-2606 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.
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IMPORTANT FUEL SYSTEM SAFETY WARNING
AND ANNOUNCEMENT OF FREE, REPLACEMENT GASOLINE CAP
CAUTION! The following information per- tains to
personal safety. Be sure to read and follow these
instructions.
PROBLEM - Gasoline vapors can build up pres sure
i n your gasoline tank. All gasoline fuels Are
more volatile today .then ever before. Tliey
vaporize and build up pressure in your gasoline
tank more easily than in the past. Winter grade
gasoline is especially subject to vapori zation
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. DANGER - Fire
and personal injury. If the fuel cap is removed
when the gasoline tank is hot and vapor pressure
has, under cer- tain circumstances, 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 escape.
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 even death.

• PRECAUTIONS - Observe the follow-
• ing steps for safe
• operation
• Always tighten gas caps securely.
• 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 par- ticular
  attention to electrical, exhaust, fuel, and
  cooling systems. Repair or re- place 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 accumula-
  tion of trash, oil or grease.
• 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 during
  operation. If you suspect overheat- ing 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.

8
Description
Page No.
Before operating a new tractor. . . . . . .
.................................. Cold weather
operation ........................... ...
.. .... Anti-freeze
solutions.........................................
...... Draining the cooling system . ..
..................................... Fuel
system............................................
............ Lubrication. . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . Driving the
tractor...........................
........................ 5tarting the
tractor...........................................
...... Stopping the tractor.......................
........................ Instruments and
controls..........................................
..... I.ubrication (see Lubrication Chart)
..................... ... .
...... Operating a distillate-gasoline engine on
distillate ....................... Fuel
system............................................
............ Manifold heat control. .
............................ ..... ..
.... Radiator shutter.............
..................................... Starting
the engine..................................
. . ..... ... Stopping the engine
............................................... Op
erating a distillate-gasoline engine on
gasoline....................... Operating a
gasoline engine...................................
......... Fuel system. . .........................
............................. Starting the
engine............................................
..... Stopping the engine.........................
...................... Operating a kerosene
engine...........................................
Operating precautions. . . . . . .
.......................................... Prepari
ng tractor for each day's work....................
.............. Special attachments. . . .
................................................ S
tarting and lighting attachments. . .
.................................... Tractor
specifications . . ....... ......................
..................
5,6 l8,i9 18,19 18 t8 l8 14l,5 14 15 4,5 2 I to
26 10to13 10 101, 1 10 II, 12 13 13 7 to
9 7 8,9 9 14 i6,17 6,7 49to62 63to80 3
TRACTOR MAINTENANCE Adjustment of rear wheel
treads. . . . . .......................... .
...... Air cleaaiag syscem........................
............................ Brakes. . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . Carburetor. . .. .
....................... ..........................
...... Clutch ....................................
............................ Cooling system .
..................................................
..... Drawbar arid hitch . Engine service
operations Fan. . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . .
. Fuel strai ner. ...............................
...........................
42 272, 8 40 30to32 40,1 282, 9 41 38 2f 19
Magneto...........................................
...................
33 to 37
oil iìlter .......................................
....................... Periodic
inspections.......................................
............ Pneumatic tires......................
.................................. Spark plugs
and cables.......................... .........
- . ... ...... Storing the tractor. ... ...
. .. ...... ... ..
. ... . 5uggestions for checking
trouble .......................................
Valve (adjusting clearance)
3s, 3a 20 43to46 32, 33 46, 47 48 12
I iOTE The instructions in this manual cover
the operation of tractors on all types of fuel,
except where otherwise specified.
9
View of the Farmall-B. The electric lighting,
wheel weights, mulfler and swinging drawbar shown
in this illustration are special features.
10
H PE CI F I GAT I O HS Capacit?ec (V. S.
flgeasore) Gasoline tank (when operating on
distillate) ............. . . .
Approz. gal. f'uel tank , , . , . , , . .
... ....... ..... ................. Approx.
11 qal. Water cooling eystem .....................
...................... Approx. 3Jj gal. Crankcase
pan .... . . .. .
. . .
.......Approx.5c. Transmission case (tess power
take-off or belt pu?tey) ..................Approx
.Sqt. Transmission case with power take-od
................. Transmission case (with power
take-off and belt pulley or bell pulley only) .
. Approx. 6 ql. Steering gear housing .
. .ppfOx. 1 Q. Rear axle drive houénq . Approx.
3 pt. Air cleaner oil cup.........................
.............................. pt. OZt
tzoctozs equiRDed ' rT/6 felt puJ/ey, odd
pizzI additional /u6rT- cant to fronsm/ssionltnse
skies ñe1tpiz/fer housing has thezi
dzalzied. CyliAdezs..............................
.....................................4 Bore.......
..................................................
............3in. Stroke. . . . . . .....
..................................................
... 4 in. Engine speed (governed) (maximum
full load) ............................1400
rpm. Power take-olt shah speed............ ... .5
4\ rpm. Magneto (fixed spark) (clockwise
rotation) ........................... Type
H-4 Spark plug (Champion No. ISA or A.C.-87)
qap.................... .028 to .032 in. Valve
clearance (engine hot)............................
............... .014 in. Carburetor (with
Donaldson air cleaner) ...........................
.........Zenith
C1uteb sad Belt PuMep' Single-plate, dry-disk
(spring-loaded) .
. . . . . . . .9
Pulley speed. . ... ......... . .
........ . . .... . ll57 rpm. Belt speed
(with 8 -in. pulley) . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . . . . . . 2574 It.
per min. PuÎley diaoteter........................
................. ...............8 in. Pul1ey
face. . . . . ........ ...........................
... .. ... .............6io. -Special
(furnishedI nr2ien orderecf) External
contracting on drums.
Transwdsnon(FeunSpeed) Speed (littles per hour)
(Based on 8-24 ( round) pneumatic tires) ......
lL....2h 2nd.. . . . .3 3rd......4 t High. . .
. .9s Reverse . . 2g
Front wheels (for pneumatic tires) ...........
..... ...................6.00-12 in. Rear
wheel (for pneumatic tires) ......................
....................824 in. Wkeelbase............
.......................................
.......72y tn. Tread, rear.......................
......................... ........64 to 92
in. Len9th (over-all) . ...... . .
..... .... . ........107 in. Width (over-all)
minimum (64-in. rear tread) ......................
......... 79ain. Width (over-all) maximum (92-in.
rear tread) ..............................100 in.
Height (over-all) (steering wheel) .. .
.......................... .. ....65ain.
height. ...................
.. ... 14 in.
DraWbar (adjustable) vertical adjustment.........
.. . .. . . . . . . . . 10 to l6jii in.
lateral adjustment..........16in. to each aide
of center hole Ground clearance . . ......
......... ...
. .23ain. Turning
radius (with s?aqle front wbeel and 64-la. rear
tread) ...... . .....6 ft. l0 in.
11
INSTRUMENTS AND CONTROLS See Illusts. 1 2 5, 7,
and 8)
Clutch Pedal This pedal, when depressed all the
way, disengages the engine from the
trans- m1SSfOn
eration it should be set in the top notch (hot)
position. If the distillate-gasoline engine is
to be operated on gasoline, the control lever
should be set in the bottom notch (cold)
position, and the manifold shield should be
removed. (For complete instructions re/er to
pages 11 and 13.)
Braie Pedal Latch See Illx/st. 8) This latch is
used to latch both brake pedals together, causing
the brakes to operate simultaneously.
Magneto ignition Switch Button This button, when
pushed all the way in, will ground the magneto
and stop the engine. Pull out this button when
starting the engine.
grake Pedal Lock The brake pedal lock is used to
lock the brake pedals in the depressed position,
which prevents the tractor from moving.
Engine Speed Control Lever This lever controls
the speed of the engine and, when set in a given
posi- tion, will maintain a uniform engine speed
even though the engine load may vary.
Brake Pedals These pedals should be used to stop
the tractor, to hold the tractor in a station-
ary position, or to assist in making sharp turns
as outlined below To stop the tractor, the
pedals should be latched together so both brakes
will operate simultaneously. to hold the rac or
in a s o ionary postmen, latch the pedals
together move brake pedal lock forward to
engaged position, and then de- press the
pedals. to assist in making a sharp turn, the
pedals must be operated individu- ally depress
the pedal on the side toward which the turn is
to be made.
Radiator Shutter Control Crank The control crank
opens and closes the radiator shutter controlling
the engine temperature. Turn the crank counter-
clockwise to close the shutter, and
clockwise to open it. HOTE Tractors with
gasoline engines are not regularly equipped
with this feature.
Heat Indicator See illest. 4) This gauge
registers the temperature o/ the liquid in the
cooling system. The indicator pointer should be
in the high side of the RUN range for engines
using distillate or kerosene for fuel, and in the
low side of the RUN range for engines using
gasoline for fuel.
Gearslift Lever This lever is used to select the
various gear ratios provided in the transmis-
sion. There are four forward speeds and one
reverse speed (ice illest. 7).
/Vtanifold Heat Control Lever This control lever
is used on the distil- late-gasoline engine. For
normal op-
NOTE
Tractors with gasoline engines
are not regularly equipped with
feature.
12
5 INSTRUMENTS AND CONTROLSContinued
Choke Lever (on carl uretor) This lever, which is
on the carburetor (see limits. 21 to 24), cuts
off the air sup- ply, thereby enriching the fuel
mixture for starting the engine, when it is
moved all the way down (closed position).
Always move the choke lever all the way up
(open posititn) as the engine warms up.
Oil Pressure indicator
This gauge indicates whether oil is
circulating through the engine. The
indicator needle should be in the white area
when the engine is operating ( s shown in
illest. ii). If it is not in the white area,
stop the engine imme- diately and investigate the
cause of the oil pressure failure.
BEFORE OPERATINC YOUR NEW TRACTOR
Make a complete inspection off the tractor Jor
any shortages or damage which may have
occurred during shiJiment.

• Lubrication
• ( I ) Lubricate the entire tractor, using the
  Lubrication Chart see pages 27 to 25) as a
  guide.
• Check the oil levels of the engine crankcase,
  air cleaner, transmission case, and steering
  gear case to be sure that they are filled to the
  correct levels with the proper grades of oil for
  the prevailing temperature (refer to speci-
  ñcations of lubricants on page 26).
• Tractors shipped to destinations in the United
  States of America, Canada, and Mexico are filled
  with oil in all parts before leaving the
  factory. How- ever, lubricant compartment should
  be checked for proper levels as outlined in
  paragraph 2 above.
• TRACTORS PACKED FOR EXPORT
• All oil is drained from the engine crankcase, air
  cleaner, and all gear cases on tractors packed
  for export.
• Engines shipped to destinations in the United
  States of America, Canada, and Mexico are
  filled with a light engine oil before leaving
  the factory. For further information, reJer
  to the

move the spark plugs and put about one
teaspoonful of crankcase 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 cyl- inders and pistons immediately after
starting and eliminates the possibility of
scoring. Procedure outlined is neces- sary only
for a new engine, or for an engine that has been
idle for a long time.
Pneumatic Tires Before moving the tractor, check
the air pressure in the pneumatic tires, and
inmate or deflate to correct pressures as shown
in the chart on page 43.
Engine Cooling System The water capacity is
approximately three and one-quarter U.S.
gallons. (1) Be sure the drain plug (on left
side of crankcase near radiator) is closed
(see illest. JP).
(2) Fill the radiator to a level slightly below
the bottom of the filler neck. Filling the
radiator to this level will allow for
expansion of the coolant
(f) Before starting a new engine, re-
13
BEFORE OPERATING YOUR NEW TRACTORContinued
Engine Cooling SystemContinued under normal
operating conditions. Use clean water. Soft or
rain water is recommended as it does not contain
alkali which forms scale and which may clog
the passages. (3) If your tractor is to be
operated in freezing temperatures (3 2F. or
lower) refer to "Cold leather Operation" on
fage 18. Also refer to "Cooling System," page
28.

• Fuel System
• Use the fuel for which the tractor engine is
  designed.
• During the first one hundred hours of operation,
  mix one pint of engine oil with every five U.S.
  gallons of fuel.

HOW TO PREPARE YOUR TRACTOR FOR EACH DAY'S WORK
Fuel System Fill the fuel tank at the end of each
day's run. This will force out any moisture-
laden air and prevent condensation. The
capacity of the fuel tank is eleven U. S.
gallons. Tractors designed for
distillate-gasoline operation have
an auxiliary gasoline tank (capacity ap-
proximately seven-eighths U. S. gallon) which is
used only for starting and
warming up the engine. If a distillate- gasoline
engine is to be operated on gasoline only, the
large fuel tank is used for gasoline, and the
small tank can be shut off or used as an
auxiliary tank. NOTE Refer to Operating
Precau tions on page 16 regarding the selection
of fuels, and safety measures when filling
fuel tanks.
14
7
HOW TO PREPARE YOUR TRACTOR FOR EACH DAY'S
WORK Continued
Cooling System Remove the radiator cap and check
to be sure that the water comes up to a point
slightly below the bottom of the filler neck.
Be sure to replace the radiator cap.
pan is up to the level of the upper test
cock. When your tractor is being operated
on distillate fuel, open the lower test cock
in the crankcase pan and allow the oil to drain
to this level. Close the lower test cock and open
the
upper cock. Add new oil until it appears at
this level, and then close the cock.
Lubrication (1 ) Change the oil in the air
cleaner oil cP-
(3) Refer to the Lubrication Chart pages 2i
to 25) for complete lubrication requirements.
(2) Be sure that the oil in the crankcase
OPERATING A GASOLINE ENGINE
Radiator flutter Tractors designed for gasoline
engine operation are not regularly equipped
with a radiator shutter but this feature can be
supplied. If your tractor is so equipped,
close the radiator shutter when starting the
en ine in cold weather then regulate it as
required to hold the needle of the heat
indicator in the low side of the RUN range.
Fully advanced
Advanced \ y one-third
\
Fully retarded
Fuel System Check the gasoline tank to make sure
that it is full also be sure that the shutoff
valve on the fuel strainer under the gasoline
tank is open.
View Showing Various Positions of the Engine
Speed Control Lever.
maintain this engine speed under vari- able
loads. Retarding of the engine speed control
lever will decrease the load which the tractor
can handle. The rated or maximum full load gov-
erned speed is 1400 revolutions per minute
maximum idle speed is approxi- mately 1540
revolutions per minute minimum speed (hand
throttle) is
Engine Speed Control Lever The engine speed
control lever enables you to adjust the speed of
the engine to the load that is to be handled.
After you have selected the desired engine
speed, the governor will automatically
15
OPERATING A GASOLINE ENGINEContinued
neutral position. See Illusts. 1 rnif 7. )
Engine Speed Control Lever Continued approx ima
tely 525 revolutions per minute. Never
operate the engine at more than the regular
governed speed. Excessive speeds are harmful.
(2) Close the choke by pulling the choke
lever all the way downward. (See illest. 3. )
(3) Open the gasoline shut-off valve. (See
illest. 3.)
Governor The governor is set at the factory and
should require no adjustment. Con- sult your
International Harvester dealer if the governor
does not function properly.
(4) Advance the engine speed control lever one
third of the way forward. See Illest. 2.)
(5) Pull out on the magneto ignition switch
button. See illest. 1.)
Starting the Engine To start the engine,
proceed in the following manner (1) Put the
gearshift lever in the
(6) Crank the engine one or two strokes
then open the choke halfway by moving the choke
lever upward, and crank the engine until it
starts. See i//ost. 3. j
Illust. 3 Fuel System and Controls.
16
OPERATING A GASOLINE ENGINEContinued
Using the Choke Avoid everchoking, as excessive
use of the choke will flood the engine, making it
difficult to start. For best results, follow the
procedure outlined below
altitude. The instructions listed above offer
approximate requirements which may be altered to
suit local conditions. Electric Starter
_at_ttaclmen Special If your tractor has an
electric starter
attachment, pull the choke rod half- way out
then disengage the clutch by pressing down on
the clutch pedal, and press in on the starter
push rod. (However, do not press on the starter
push rod for more than 30 seconds at any one
time.) Slowly release the clutch pedal after
the engine has starteci.
During Warm Weather, or when the Engine is Watm
Set the choke lever in a half open position and
crank the engine, using quick upstrokes until the
engine starts.
During Cold Weather, or when the Engine is
Cold C1ose the choke cooz- pletely by pulling
lever down as far as it will go then crank the
engine with quick upstrokes as follows Six to
eight lifts of the crank at temperatures zero to
ten degrees Fahrenheit. Four or five lifts of the
crank at temperatures ten to twenty de- grees
Fahrenheit. Two or three lifts of the crank at
temperatures twenty to thirty degrees
Fahrenheit. Now open the choke halfway and crank
with quick upstrokes until the engine starts.
ther the Engine Starts As soon as the engine
starts, the choke should be adjusted to a point
where the engine operates without missing and,
as the engine warms up, the choke should
gradually be opened all the way. Do not use
the choke to enrich the fuel mixture except when
starting the engine. Never operate the enJine
with the choke partly closed. Immediately after
the engine starrs, check the oil pressure
indicator on the dash (see I/Joif. / i ) to see
if it is registering pressure. lf it is not, stop
engine and inspect the oil system to find the
cause of failure. If unable to find the cause,
consult your I nterna- tional Harvester dealer
before operat- ing the engine.
CAUTIONS When cranking the en- gine, be sure the
gearshift lever is in neutral position and always
stand in a position that will eliminate any
possi- bility 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
use of the choke for starting will vary,
depending on temperature and
Stopping tle Engine Retard the engine speed
control lever by pulling it all the way back,
and short-circuit the magneto by pushing the
ignition switch control button all the way in.
It is advisable to close the gasoline shut-oif
valve if the engine is to be stopped for any
length of time.
17
OPERATING A DISTILLATE-GASOLINE ENGINE ON
DISTILLATE radiator shutter and start the engine
Radiator Shutter Tractors designed for operation
on dis- tillate 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 operat- ing temperature. Distillate
fuels are heavier than gasoline and therefore
require more heat for proper vaporizatioo.
Before starting a distillate-gasoline engine,
close the radiator shutter completely by turning
the radiator shutter control rod (see illest.
5) all the way to the left (counter-
clockwise). After the engine has been started,
allow it to operate with the radiator shutter
closed until the pointer on the heat indicator
is on the high side of the "Run" section then
regulate the shutter enough to keep the pointer
on the heat indicator in this position (see
f/JusJ. 4). The adjustment of the shutter will
vary, depending on the load the tractor is
handling, length of idling periods, at- mospheric
temperatures, and the kind and quality of fuel
that is being used.
then put the water in the radiator
immediately. This prevents water from freezing
during the warming-up period. After the engine
has warmed up, adjust the radiator shutter to
maintain the operating temperature of the engine
on the high side of the "Run" portion on the heat
indicator (see illest. J).
Fuel System Check the fuel and auxiliary gasoline
tanks to make sure that 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.) Do Not Mix Fuels Do aot
have the shut-off 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 gaso- line, making the engine
hard to start. Before starting the engine on
gasoline, be sure that there is no distillate
fuel in the carburetor or in the fuel strainer.
livlPORTAHTl Before filling the radi- ator in
freezing weather, close the
iVlanifold Heat Control (See fJJuit. 6) The
distillate-gasoline engine manifold is designed
so that the hot exhaust gases pass around the
intake manifold and heat the incoming fuel
mixture, resulting in maximum efficiency under
all normal operating conditions. The manifold
heat control valve has three adjustment
positions (1) top notch, Hot position (2)
center notch, "Intermediate" position (3)
bottom notch, "Cold" position. With these
adjustments, the heat of the manifold can be
regulated to suit the
The engine has reached the most ePicient operat-
ing temperature when tke needle on the heat
indicator is approximately on the high side of
the "Run" section.
18
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OPERATING A DISTILLATE-GASOLINE ENGINE ON
DISTILLATEContinued Oil tiller
and breather
Gasoline filler cap
Radiator filler cap
Fuel filler gcap
Engcne speed concrol lever
Manifold shield
COntrOl rod
Choke (in open position)
Fuel shut-off valve
Fuel System and Controls.
IVtanifold bleat ControlContinued various
operating conditions, which are governed by the
prevailing air tempera- ture, 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. 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 pre- vailing temperature is very
high, or when the engine is operating with a
constant heavy load. In such cases, use either
the "Intermediate" or "Cold" positions. The
manifold should be kept hot at all times to
vaporize the heavy fuels properly and to avoid
dilution of the crankcase lubricating oil.
Starting the Engine Be sure the magneto ignition
switch button is pulled out so that magneto is
not grounded see Hirst. 1) also see that the
shut-off valve under the gasoline tank is open,
and that the fuel shut-off valve under the main
fuel tank is closed. Be sure there is no
distillate fuel in the carburetor or in the fuel
strainer. CAUTION! Never have both valves
open or partially open at the same time as
distillate will mix with the gasoline, making it
unsatisfactory for starting. Avoid overchoking as
excessive use of the choke will flood the engine,
making it difficult to start. For best results,
follow the procedure outlined in the following
paragraphs
20
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