New Holland Boomer 47 User Manual

8-TROUBLESHOOTING
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
Transmissionoiltemperatureistoohigh
Shutdowntractortocoolthetransmission
oil,andrestartafteroiltemperaturehas
beenreduced
HSTinternalpartswornRepairHSTtransmissionasneeded
HSTltercloggedReplacetheHSTlter
AbnormalnoiseEnginespeedistoolow
Setenginespeedover1500RPM
Oiltemperatureistoolow
Runenginetowarmuptheoil
HydraulicoilltercloggedReplacetheHSTlter
Oilshortage
Addtransmissionoilasneeded
Electricalsystem-Troubleshooting
Problem
PossibleCauseCorrection
BatterydoesnotchargeIncorrectwiring
Checkbatteryterminalsandgroundforcor-
rosion
FaultyAlternatorTestalternatorrepairorreplaceasneeded
IncorrectfanbelttensionorbrokenbeltAdjustfanbelttensionorreplacebelt
FaultybatteryReplacebattery
HeadlightsaredimBatterychargeislow
Chargeorreplacebattery
Faultyheadlightwiringorfaultyground
connection
Checkandrepairwiringasneeded
Headlightswillnot
illuminate
LightbulbburntoutReplacebulbasneeded
BlownFuse
Checkthecauseandreplacefusewithcor-
rectsize
Faultywiringconnection
Checkheadlightwiringconnection,repair
asneeded
Faultylightswitch
Checkswitchforproperfunctionandre-
placeifneeded
Turnsignallightsdonot
work
LightbulbburntoutReplacebulb,withcorrectsize
Faultywiringconnection
Checkwiringconnections,repairas
needed
BlownfuseCheckthecause,replacefusewithcorrect
size
Faultyturnsignalswitch
Checkswitchforproperfunction,replace
switchifneeded
ColdstartaidnotworkingFaultyconnectionofglowplugwiringCheckandrepairglowplugwiringas
needed.
BlownfuseCheckforcauseandreplacefusewithcor-
rectsize.
GlowplugrelayorsafetycontrollerfaultyCheckrelayandcontrollerforproperfunc-
tion,replaceasneeded
8-4

New Holland Boomer 47 Specifications

General

Engine Power	47 hp
Transmission	Hydrostatic
Weight	2, 866 lbs
PTO Speed	540 rpm
3-Point Hitch Lift Capacity	2, 756 lbs