New Holland WORKMASTER 40 User Manual

8-TROUBLESHOOTING
Problem
PossibleCauseCorrection
Controlvalvefailure
Repairorreplacevalve
Hydraulicliftcylinderdamaged
Repaircylinderasneeded
LiftshaftmovingpartsdamagedRepairorreplaceliftshaftpartsasneeded
Steering-Troubleshooting
Problem
PossibleCauseCorrection
Hydraulicsteeringsystem
doesnotwork
Faultypowersteeringpump
Replacepumpifneeded
Steeringunitdamagedorworn
Repairorreplaceunitasneeded
Steeringcylinderpistonsealdamagedor
worn
Repaircylinderasneeded
Externaloilleakageofoiltubesorhoses
Repairorreplacetubesorhosesas
needed
Excessivesteeringwheel
effort
Steeringunit:Splineandcolumnspline
doesnotalign
Checkmountedconditionofsteeringunit
andcolumn
Steeringunit:Spoolandsleevedamaged
byforeignmaterial
Replacesteeringunit
Steeringunit:Excessivetighteningtorque
ofendcapbolt
Applypropertorqueofendcaphardware
Pump:Lowow
IncreaseengineRPM,toincreasepump
ow
Faultypowersteeringpump
Checkpump,repairorreplaceifneeded
Powersteeringreliefvalve:pressureset-
tinglow
Checkpowersteeringreliefvalvepressure
adjusttoproperpressuresetting
Cylindermovementnotas
smoothassteeringwheel
Airinsteeringlineifnotusedforalongtime
Bleedairinsteeringsystem
Airinsuctiontube
Checksuctiontube,repairasneeded
Cylinderpistonsealdamaged
Repaircylinderasneeded
Frontwheelsturnthe
oppositedirectiontothe
steeringwheeldirection
Incorrectassemblyofsteeringgear
Repairsteeringgearasneeded
Incorrectassemblyofsteeringhoses
Assemblelsteeringhosescorrectly
Oilleakageofsteering
pump,steeringunit,
cylinder
Sealdamaged
Replaceseal
Abnormalnoise
Lackofoil
Addoilasneeded
RestrictionofoilowinsuctionlineReplacelter
Airinsystem
Bleedairfromsystem
Hydrostatictransmission-Troubleshooting
Problem
PossibleCauseCorrection
WhenoperatingHST
pedal,tractordoesnot
move.
HSThighpressurereliefvalvepressure
settinglow
CheckHSTpressureandrepairasneeded
HSTchargepressurevalvefaultyCheckHSTchargepressureandrepairas
needed
HSTFiltercloggedReplaceHSTlter
HSTpumpfaultyRepairorreplaceHSTpump
HSTcontrollinkagewornordamaged
Repairorreplacelinkageasneeded
Tractorisstillmoving
whenHSTpedalisin
neutralposition
IncorrectneutraladjustmentofHSTlinkageAdjustneutralpositionofHSTlinkage
HSTpedallinkagedamaged
Replacedamagedlinkagepartsasneeded
HSTcontrolarmclampboltloose
Tightencontrolarmclampbolt
HSTpowerislowOilshortage
Addtransmissionoilasneeded
AirinHSTcircuitCheckandrepairthehydraulicsuctionline
8-3

New Holland WORKMASTER 40 Specifications

General

Manufacturer	New Holland
Model	WORKMASTER 40
Category	Tractor
Engine Type	Diesel
Engine Power	40 HP
3-Point Hitch	Category I
Wheelbase	73.2 inches
Hydraulic System	Open Center
Fuel Capacity	9.2 gallons
Transmission	8x8 Synchro Shuttle