New Holland Workmaster 75 Manuale utente

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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