Case 120 User manual

Operator'sInstruction Manual
Model 120
Garden

NOTICE
At thetimeyour Case Dealerdeliversyournewtractor,he will
acquaintyou with itsoperationand maintenance asoutlinedinthe
"Delivery Procedure andWarrantyRegistration".WhenyourDealer
hascompleted these instructions,he will askyoutosignthereport
and will thenhandyoua copyforyourrecords.
MOTi
The"Delivery Procedure andWarranty
Registration" also containsa recordof
thePre-DeliveryCheckupwhichyour
Dealer made onyourtractor.
AFTERDELIVERY CHECKUP
TheAuthorized Case Dealer from
whom you purchased yournewtractor will
perform the "After DeliveryCheckup"
outlined onthe following page, ifyou will
arrange tobringyourtractortohis Ser-
vice Shop within
60 days after date ofdeliveryor200
hours ofoperation(whichever occurs
first).
HOTS
Theonly charge your dealer will make
for thisinspection will beforoil, filters,
orother accessories.

AFTERDELIVERY CHECKUP
lOwnai'iNam*)
'Qwnai'iAddreu)
(Date ChackupParforaiad)
(Daaia^ip) (Town)
Tractor has been operatedhours
(TractoiModelandSeiial Numbat)
I I Operatehydraulicsystem.
^ Checktire pressure.
Tighten cylinderhead.
TRACTOR
Crankcase oil(Changeoilif
necessary).
r~l Oil level intransmission.
^ Check ignition timing.
Checksparkplugandbreaker
point gap.
Check full governednoload
engine speed andlow idle
speed.
Tighten allbolts (including
rims).
Lubricate all pressure fit-
tings.
Checkaircleaner.
Checktensionofallbelts.
Checksteering.
I] Check front wheeltoe-in(190
only).
Battery, starter- generator
and lights.
• Coolingsystem.
^ CheckoperationofaUinstru-
mentsandlevers.
DEALER: Question purchaser carefullyconcerninghisexperience
with tractorandansweranyquestionsconcerningmain-
tenance oroperationthatarenotcleartohim.
Checkup.
Signed
Parformadhy
Daalai
OrtgiMl—DmWt
Da^Mto—Laara inOp»r«tawMantMJ
ftnPurchaaai Signed. Coalomar

TO THE PURCHASER OFA CASETRACTOR
The care yougiveyournew Case Tractor will greatlydetermine
thesatisfactionandservice life you will obtain from it.Usethis
manualasyourguide.Byobservingtheinstructionsand suggestions
in thismanual,your Case Tractor will serve you well formany
years.
As anAuthorized Case Dealer,westockGenuine Case Parts,
which aremanufactured with the same precisionand skill asthe
original equipment.Ourfactorytrained staff iskept well informed
on the best methodsofservicing Case equipmentandisreadyand
abletohelpyou.
Should yourequireadditionalaidorinformation,contactus.
To insureefficientandpromptservice, please furnishus with the
Model, Serial,EngineModelNumberandEngineSpecification Num-
berofyourTractorinall correspondence orcontacts.
HI FOLKSM'mSammy Safety,
Look formeto point out
important SofetyPrecautions
1

SERIALNUMBER
Whenordermg parts from yourAuthorizled Case Dealer andin
all contacts or correspondence with your dealer relative tothe
Tractoralwaysspecify the Serial,Model and EngineNumbers of
your Tractor.
TheModel and SerialNumbers are stamped onthe numberplate
located onthe instrumentpanel.Figure 3.The Engine,Model,Serial
andEngineSpecificationNumbers are stamped on aplate fastened to
therighthand side ofthe engine,Figure 4.
Figure 3 Figure 4
The terms "RightHand" and "Left Hand"
whenever used in thismanualapply tothe
tractorwhenfacing inthe direction the
tractor will move in forwardoperation.
For reference, fill inthe SerialNumber,ModelNumber andEn-
gineNumbers of yourTractor inthespaces providedbelow.
TractorModelNumber
TractorSerialNumber
EngineModelNumber ;
EngineSerialNumber .
EngineSpecificationNumber
3

SPECIFICATIONS
General
Type. __Kohler
Model___ _ _ _ K241A
Cycle _ 4
Cylinders 1
Cylinder Bore3-1/4in.
Stroke_ _ 2-7/8in.
PistonDisplacement23.9cu.in.
Horsepower10HP
CompressionRatio6 to1
Full Load Speed 3500RPM
No Load Speed 3600RPM
Idle Speed 1000RPM
Valve Clearance Cold (Intake).010in.
Valve Clearance Cold (Exhaust)_020in.
Piston and Connecting Rod
Piston Aluminum
CompressionRings2
Oil Rings1
ConnectingRod, Aluminum
Fuel System
Carburetor
Filter Screen
Fuel TankCapacity
Ignition System
BreakerPointGap.020in.
Ignition Timing SP Mark
SparkPlugPrestolite14L7orequivalent
Thread__14MM
Gap„ _ - 025"
1" SAEFlange
In Sediment Bowl
5Quarts
4

CoolingSystem
Blower Forcedair with bafflesdirectingair
aroundfinnedcylinderand head area
Electrical System
TypeofSystem12 Volt, NegativeGround
Battery Autolite LU7
Starter-Generator 12 Volt
VoltageRegulatorAutomaticType
HeadLights-12 Volt
CombinationBrake and TractorClutch
TypeBrakeMechanical, operated bypedalonright side of
tractor.
TypeClutchMechanicaldisc, operates inconjunction with
brake pedal.
Transmission
TypeHydra-Static
Mechanical Range High andLow
SPEED RANGE
FIRST.75MPH
SECOND2.2MPH
THIRD 4.0MPH
FOURTH 7.4MPH
REVERSE2.6MPH
WHEELS AND TIRES
Tire Size PLYTypePSI
FRONT
Recommended Max.
6.50-8 2 Terra8 14
4.80-8 2 Rib1622
REAR
8.50-12 2 Turf 8 10
8.00-16 2 Lugor Turf 8 14
5

OverallMeasurements
B
A
Figure5
A
66"
B
46"
C 40"
D
34"
E
7"
Overall Width 35"
ShippingWeight 650lbs.
6

CMTION
NEVER FILL THE FUEL TANK WHEN
THE ENGINE IS RUNNING OR WHEN
NEAR ANOPEN FLAME. DONOT
SMOKE WHEN WORKING NEAR IN-
FLAMMABLE FUELS.
GASOUNE
Kohler GasolineEnginesaredesignedtooperateon REGULAR
GRADE gasolinehavinga minimum researchmethodratingof90.7
Octane.This will give full powerandeconomytogether with long
engine life andlowmaintenancecost.
The average Octanenumberratingsforregulargradegasoline
(December1964).
Motor Method85.4OctaneNumber
ResearchMethod93.7OctaneNumber
These twoOctaneratingsareusedtodefinetheanti-knock
quality ofgasoline.IthasbecomecommonpracticeinthePetroleum
Industry torefer only totheRESEARCH METHOD RATING.
When only oneOctaneratingisgivenforgasolineandtherating
method isnotspecified,itcanbe assumed tobetheResearchMethod
Rathig,
7

FUEL CONDITIONER
The following "FuelConditioner"recommendationsare made for
areas troubled with gumandvarnishinthe fuel:
1, Obtaina "Case Conditioner"anduseitas follows:
A. Addittothe fuel inthemain storage tank.
B. Adda smallquantitytotheTractor fuel tank daily.
C.Usethe"Conditioner"periodically,orwhenanysymptoms
developintheenginethatindicategumandvarnish deposits
in theFuelSystem.
MOU
Refertotheinstructionsfurnished with
the"Conditioner"astotheamountthat
shouldbe used.
Figure6
IMPORTANT
1. BuyFuelinquantitiesthat will be used upin90 days or less.
2. Protectmain storage tank with a shelter sothe fuel canbekept
ascoolaspossible.
8

SAFETYPRECAUTIONS
1. Beforestartingtheengine,be sure alloperatingcontrolsarein
NEUTRAL andthetractorisona flat, levelsurface.
2. Never operate anyofthecontrols from anypositionbut seated
in the operator's seat.
3.Beextracarefulwhengoingdown steep grades.
4. Drive ata speed slowenoughtoinsuresafetyandcompletecon-
trol, especiallyoverroughterrain.
5. Reduce ground speed whenmakinga turn,goingdown hill orap-
plying thebrake.
6.Always operate thetractorin first orsecond gear wheneveron
hills or steep inclines.
7.Neverparkthetractorona hill orinclineandleaveunattended.
8. Becertaintheclutchandbrakelinkageismaintainedinproper
adjustment.SeePreventiveMaintenanceSection.
9.Neverleavetheenginerunning while itisimattended.
10. Neverdismount from a Tractorwhenitisinmotion.
11. Neverpermit persons otherthantheoperatortorideonthe
Tractor.
12. Neverstandbetweena Tractorandmachinewhenhitching unless
theshiftleverisinneutral.
13. Donotoil, grease oradjusta Tractorwhentheengineisrunning.
14. Neverrefuela Tractorwhentheengineishotorrunning.
15. Donotsmokewhenrefueling,
16. Never operate a Tractorina closed shed or garage.
17. Donotwearloose fitting clothing which maycatchinthemoving
parts.
18. Topreventhighwayaccidents,useredwarningflagsintheday-
time andredwarninglampsatnight,
19. Always have PTOleverdisengagedandthebrakepedal depressed
andlockedwhenparkingorstartingtheTractor.
20. REMEMBER,A CAREFUL OPERATORIS ALWAYS THEBEST
INSURANCE AGAINST AN ACCIDENT.
9

10

SERVICE POINTS
1 FrontSpindles
2
/—X HOURS
(5) OR
^ DAILY
2
FrontWheelBearings or Bushings 2
/—X HOURS
(5) OR
^ DAILY
3 Engine Oil *
1
/—X HOURS
(5) OR
^ DAILY
4
Blower Air Intake Screen 1
/—X HOURS
(5) OR
^ DAILY
5 Engine
Oil
2
HOURS
® OR
WEEKLY
6 Air Leaks •*
HOURS
® OR
WEEKLY
7 Tie
Rodand DragLink
4
HOURS
® OR
WEEKLY
8 ImplementLever
and Release 3
HOURS
® OR
WEEKLY
9 Battery
1
HOURS
® OR
WEEKLY
10 Air Cleaner *•• 1
HOURS
® OR
WEEKLY
U BrakeLinkage
and Lock 3
HOURS
® OR
WEEKLY
12 FrontAxlePivot 1
HOURS
® OR
WEEKLY
13 SteeringGear
Box °° 1
A HOURS
/ 'UO\V
14 SparkPlug ° 1
A HOURS
/ 'UO\V
15 CrankcaseBreather ••* 1
A HOURS
/ 'UO\V
16 BreakerPoints
°
1
A HOURS
/ 'UO\V
16 BreakerPoints
°
1
17 Choke and Throttle Cables
2
18 TransmissionLubricant
+ 1
18 TransmissionLubricant
+ 1
MHMHH HUU Kb
miiiH OR
19 Air CleanerElement **• 1
MHMHH HUU Kb
miiiH OR
20 EngineCoolingFins *•*
1 •••• YEARLY
*Keepoillevelbetweenmarkson gauge (Capacity3 pts.)
**Be sure there areno leaks between gaskets, jointsatcarburetor,
air cleaner andcylinderblock
***More oftenindustyconditions.
"Cleanandregap,
°°One stroke- Donotoveriubricate
+Maintain levelatcheckplugon rear side.Whenchanging, refill
with 3 pintsofShellMacoma#72lubricantortheequivalent,such
asSAE90orSAE80
Usenumber1 gun grease (Lithium Base) forall pressure fittings.
(As many strokes asrequired.)
11

ENGINELUBRICATION
Selection of Lubricating Oil
It isextremelyimportantthatyouselectanduseinyour Case
Tractor a stable, high quality, "SAE- MSorDMService Classifi-
cation Oilthathas passed Automotive ManufacturersAssociation
(AMA) Test Sequences I, II, and III.
Engine OilSAE ViscosityRating
SAE 30AirTemperatures-SO"F andAbove
SAE 10-WAirTemperatures0"F to30'F
SAE 5-Wor5W-20AirTemperatures0*F or Below
REGULAR OIL CHANGE
Drain and refill thecrankcaseatleastevery25hoursofopera-
tion.
If theengineserviceis severe - (frequentstoppingandstarting,
high orlowoperatingtemperature)- thecrankcaseshouldbedrained
more often topreventthe formation ofsludgeor harmful deposits
in theengine.
CRANKCASE OIL CHANGE
IMPORTANT
1. Whenjustthecrankcaseisdrained,always refill with 3 measured
pints of oil. Donot refill usingthe dipstick asa guide.
2. Operatetheenginefora fewminutes;thenchecktheoil level with
the dipstick.
Be sureto allow sufficient timeforthe oil torun down offtheen-
gine parts.
3.By following theaboveprocedure,you will prevent overfilling or
underfilling thecrankcase,eitherof which canbedetrimentalto
theengineservice life and will giveyoufalseoilconsumption
records.
12

RUN-IN PROCEDURE
Your newtractorshouldbesubjectedtoa run-in periodbefore
it isoperatedat full load. Drive thetractorforseveralhoursto
getthefeelofoperation.Actuatethe speed controlleverthroughIts
fuU range dtu-ingthe run-in period.
PRE-STARTINGCHECKLIST
Before startingyournew Case Tractorforthe first timeandbe-
fore each operatingperiodthereafter, chedc the following.
1. MAKE SURE EVERYONE RESPONSIBLEFORTHETRACTOR'S
OPERATION AND MAINTENANCE UNDERSTANDS THE IMPOR-
TANCE OF CLEAN FUEL.
2. Checkthatalllubricating fittings areservicedasdirectedinthe
Lubrication Chart.
3.Checkthatthe crankcase andtransmissionhousingis filled to
levelsindicatedintheLubricationChart.
4. Be sure aircleanerandblowerairintake screen onengineare
freeofobstructionsandexcessive dirt.
5.Check tliat tractor fuel tankis filled with clean fuel that meets
requirementslistedunderFuelSpecifications.Alwayswipe fuel
tankcapcleanbeforeremovingit.Be sure ventholein fuel tank
is open.
13

OPERATINGCONTROLS AND INSTRUMENTS
DISCNGAOETHAT
Figure 7
1. STARTERKEY- Turnthekeyto
therightto start the engine. When
turningoffthe engine, turnthekey
totheleftandthekey will beinan
uprightposition.Donotturnthekey
all thewaytotheleftas this isthe
accessory position
DONOTSTARTTHEENGINE WITH
THE PTOENGAGED.
2.CHOKE- To start a cold engine, push choke lever down. Push
lever up when engine is warmed up.
3.THROTTLE- Whenthethrottle lever isallthewayup,the engine
should beidling.To increase the engine RPM, push the lever
downwarduntilthe desired throttlesettii^is obtained.
14

4. RANGE AND DIRECTION SELECTOR LEVER - With theselector
lever inneutral, depress thecombination clutch andbrakepedal
andplacetheleverinanyoneofthe four forward oronereverse
speed ranges toobtainthedesired working speed or direction.
CAUTION Be sure theselectorleveris in neutral whenparkingand
starting thetractor.
5. COMBINATION CLUTCH AND BRAKE PEDAL - Thecombination
clutch andbrakepedal will disengagethetraction clutch onthe
enginewhenthepedalis depressed toapproximatelythree-fourths
of its full travel, therebystoppingthetransmissiondrivebelt.
Depress thepedal fully toapplythebrake,
6. BRAKING AND PARKING - Whenmakinga normalstop, depress
thebrakepedalaboutthree-fourthsofits full travel which will
stopthetransmissiondrivebelt. If a faststopis necessary, fully
depress thepedalto engage thebrakeband with thebrakedrum
on thetransmission.
NOT£ Always engage and lock thebrakewhenparkingthetractor.
Thebrakeislockedbytighteningthe lock lever(6,Figure
with thebrakepedal fully depressed.
Make certainthebrakebandismaintainedinproper
adjustment.Shouldthebrakebandbecome worn or
loosened,thetraction clutch ontheenginecanbere-
engagedwhenexcessive pressure isappliedtothe
brakepedal.RefertotheBrake, Clutch and Drive
Belt AdjustmentinstructionsinthePreventive Main-
tenance Section.
7. UGHT SWITCH - Pull theUght switch outto turn onthehead-
lights andpushinto turn offtheheadlights.
8. AMMETER WARNING LIGHT - Thewarning light goes onwhen
thekey switch isturnedonandshouldgooffwhentheengine
starts.Iftheammeterwarning light does notgooffwhenthe
engine starts andisrunning,itisan indication thatthebatteryis
discharging andthegeneratorisnotsupplyingcurrent.STOP
THE ENGINE AND CHECK FORTHE CAUSE.
If theammeter light flickers whentheengineisatlow idle,
thebattery,generatororregulatormaynotnecessarilyrequire
servicing. However,ifthewarning light remainsonwhenengine
speed isincreased,stoptheengineimmediatelyandcheckforthe
cause.
15

OPERATING CONTROLS (Continued)
9. IMPLEMENT LIFT LEVER - Theimplementleveris used to
raise orlowertheimplementand also to hold theimplementat
anygiven level. The wing nutatthe base canbeturnedinorout
to adjusttheminimumoperatingheightofanattachment.When
transportingtheattachment, pull the lift leverback until the
catch engages. Depress thebuttonatthetopofthelevertore-
lease andlowertheattachmenttodesiredoperatingheight.A
slight pulling pressure onthelever will permitthe release
button tobemoreeasily depressed.
PTO LEVER - To engage the
attachmentdriveclutch,move
thePTOlevertothe right. To
disengage, movetheleverback
to the left. Be sure thePTO
leverisintheoffpositionwhen
parking orstartingtheTractor.
Figure7a
16

STARTING PROCEDURE
RANGESELECTOR
LEVER
STARTER
KEY
PTOLEVER
THROTTLE
CHOKE
Figure 8
1. Placetherangeselectorleverinthe NEUTRAL position.
2. PlacethePTOleverin NEUTRAL position.
3. Depress the clutch andbrakepedal.
4. Closethechokebypushingthe control lever down. More or less
choking maybe necessary duetovariations in temperature,grade
of fuel, etc. Little ornochoking will beneededwhenengineis
warm. In cold weather,itisadvisableto position thethrottle
lever aboutone-thirdopen.
5. Turn thestarterkeytothe right tostartengine;then release key.
6. After theengine starts andruns,pushthechoke control lever
all thewayup. Always allow engineto warm upbefore applying
aload. Release thebrakepedal slowly afterenginestarts.If
rangeselectorleverisinproper NEUTRAL position, tractor
will notmove.
CAUTION DONOTUSETHE STARTER-GENERATOR
LONGER THAN 30SECONDS WITHOUT IN-
TERRUPTION. WAIT AT LEAST 3 MINUTES
SOTHE STARTER-GENERATOR CAN COOL
OR SERIOUS DAMAGE COULD RESULT.
STOPPING THE ENGINE
1. Anenginethathasbeen working underloadshould idle fora few
minutessotheenginepartscan cool evenlybeforeitisshutoff.
2. Turn starterkeyto"OFF"or upright position.
17