New Holland Workmaster 75 User manual

SERVICEMANUAL
Workmaster75
8426985520/04/2010

Contents
INTRODUCTION
HYDRAULIC-PNEUMATIC-ELECTRICAL-ELECTRONICSYSTEMSA
PRIMARYHYDRAULICPOWERSYSTEM...............................................A.10.A
PRIMARYHYDRAULICPOWERSYSTEMOpencentermechanicalremotevalve......A.10.D
HYDRAULICCOMMANDSYSTEM.......................................................A.14.A
ELECTRICALPOWERSYSTEM.........................................................A.30.A
LIGHTINGSYSTEM.......................................................................A.40.A
ENGINEANDPTOIN....................................................................B
ENGINE...................................................................................B.10.A
FUELANDINJECTIONSYSTEM.........................................................B.20.A
AIRINTAKESYSTEM.....................................................................B.30.A
ENGINECOOLANTSYSTEM............................................................B.50.A
LUBRICATIONSYSTEM..................................................................B.60.A
STARTINGSYSTEM......................................................................B.80.A
TRANSMISSION,DRIVEANDPTOOUT.........................................C
POWERCOUPLINGClutch..............................................................C.10.C
TRANSMISSIONMechanical.............................................................C.20.B
REARPTOMechanical...................................................................C.40.B
AXLES,BRAKESANDSTEERING..................................................D
FRONTAXLE.............................................................................D.10.A
REARAXLE...............................................................................D.12.A
2WD-4WDSYSTEMMechanical..........................................................D.14.B
Finaldrive.................................................................................D.15.A
STEERINGHydraulic.....................................................................D.20.C
SERVICEBRAKEMechanical............................................................D.30.B
PARKINGBRAKEMechanical............................................................D.32.B
FRAMEANDCAB.........................................................................E
USERCONTROLSANDSEAT...........................................................E.32.A
USERPLATFORM........................................................................E.34.A
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SAFETYSECURITYACCESSORIESSafety.............................................E.50.B
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INTRODUCTION
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Contents
INTRODUCTION
Foreword........................................................................................3
ForewordEcologyandtheEnvironment........................................................4
Legaladvice....................................................................................5
Internationalsymbol............................................................................6
Safetyrules.....................................................................................7
BasicinstructionsHardware..................................................................11
TorqueSpecicationT ables...................................................................12
Generalspecication-BiodieselFuels.......................................................17
Generalspecication.........................................................................18
Consumables.................................................................................20
Dimension....................................................................................21
Productidentication..........................................................................24
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INTRODUCTION
Foreword
ThisrepairmanualprovidesthetechnicalinformationneededtoproperlyservicetheNewHollandWORKMASTER
75modeltractor.Usethismanualinconjunctionwiththeoperator’smanualforcompleteoperation,adjustment,and
maintenanceinformation
OnNewHollandequipment,leftandrightaredeterminedbystandingbehindtheunit,lookinginthedirectionoftravel.
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INTRODUCTION
ForewordEcologyandtheEnvironment
Soil,air,andwaterarevitalfactorsofagricultureandlifeingeneral.Whenlegislationdoesnotyetrulethetreatment
ofsomeofthesubstanceswhicharerequiredbyadvancedtechnology,commonsenseshouldgoverntheuseand
disposalofproductsofachemicalandpetrochemicalnature.
NOTICE:Thefollowingarerecommendationswhichmaybeofassistance:
•Becomeacquaintedwithandensurethatyouunderstandtherelativelegislationapplicabletoyourcountry.
•Wherenolegislationexists,obtaininformationfromsuppliersofoils,lters,batteries,fuels,antifreeze,cleaning
agents,etc.,withregardtotheireffectonmanandnatureandhowtosafelystore,useanddisposeofthese
substances.
•Agriculturalconsultantswill,inmanycases,beabletohelpyouaswell.
HELPFULHINTS
•Avoidllingtanksusingcansorinappropriatepressurizedfueldeliverysystemswhichmaycauseconsiderable
spillage.
•Ingeneral,avoidskincontactwithallfuels,oils,acids,solvents,etc.Mostofthemcontainsubstanceswhichmay
beharmfultoyourhealth.
•Modernoilscontainadditives.Donotburncontaminatedfuelsandorwasteoilsinordinaryheatingsystems.
•Avoidspillagewhendrainingoffusedenginecoolantmixtures,engine,gearboxandhydraulicoils,brakeuids,
etc.Donotmixdrainedbrakeuidsorfuelswithlubricants.Storethemsafelyuntiltheycanbedisposedofina
properwaytocomplywithlocallegislationandavailableresources.
•Moderncoolantmixtures,i.e.antifreezeandotheradditives,shouldbereplacedeverytwoyears.Theyshould
notbeallowedtogetintothesoilbutshouldbecollectedanddisposedofproperly.
•Donotopentheair-conditioningsystemyourself.Itcontainsgaseswhichshouldnotbereleasedintotheatmos-
phere.YourNEWHOLLANDdealerorairconditioningspecialisthasaspecialextractorforthispurposeandwill
havetorechargethesystemproperly.
•Repairanyleaksordefectsintheenginecoolingorhydraulicsystemimmediately.
•Donotincreasethepressureinapressurizedcircuitasthismayleadtoacomponentfailure.
•Protecthosesduringweldingaspenetratingweldsplattermayburnaholeorweakenthem,allowingthelossof
oils,coolant,etc.
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INTRODUCTION
Legaladvice
BT09A2131
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INTRODUCTION
Internationalsymbol
Asaguidetotheoperationofthemachine,variousuniversalsymbolshavebeenutilizedontheinstruments,controls,
switches,andfusebox.Thesymbolsareshownbelowwithanindicationoftheirmeaning.
Thermostart
startingaidRadioPTOPosition
Control
Alternator
charge
Keepalive
memory
Transmission
inneutral
Draft
Control
FuellevelTurnsignalsCreeper
gears
Accessory
socket
Automatic
Fuelshut-off
Turnsignals
-onetrailer
Slowor
lowsetting
Implement
socket
Enginespeed
(rev/minx100)
Turnsignals
-twotrailers
Fastorhigh
setting
%age
slip
Hoursrecorded
Frontwind-
screen
wash/wipe
Ground
speed
Hitchraise
(rear)
Engineoil
pressure
Rearwind-
screen
wash/wipe
Differential
lock
Hitchlower
(rear)
Enginecoolant
temperature
Heatertemp-
eraturecontrol
Rearaxle
oiltem-
perature
Hitchheight
limit(rear)
Coolant
levelHeaterfanTransmission
oilpressure
Hitchheight
limit(front)
TractorlightsAirconditionerFWD
engaged
Hitchdis-
abled
Headlamp
mainbeam
Airlter
blocked
FWDdis-
engaged
Hydraulicand
transmission
lters
Headlamp
dippedbeam
Parking
brakeWarning!Remote valveextend
WorklampsBrakeuid
level
Hazard
warninglights
Remote
valveretract
Stop
lamps
Trailer
brake
Variable
control
Remote
valveoat
HornRoof
beacon
Pressurised!
Opencarefully
Malfunction!
SeeOperator’s
Manual
Warning!
Corrosive
substance
Malfunction!
(alter-
nativesymbol)
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