AttachmentHydraulicProblems
Problem
PossibleCauseCorrectiveAction
TheOperatorisnotintheseatwhen
thetractionpedalisdepressed.
SitintheseatbeforeengagingthePTO
switch.
Amechanicalproblemexistswiththe
attachment.
Inspecttheattachmentassemblyfor
binding,wearordamage,andrepairor
replaceifnecessary.
Anelectricalproblemexistsinthe
attachmentcircuit.
RefertoTroubleshooting–Electricalin
thismanual.
RearRemoteHydraulicsKit(model
08781):Theremotehydraulicsvalveis
stuckordamaged.
Remove,clean,inspectandrepairor
replacethevalveifnecessary.
HydraulicSwitchKit(model08783)
FrontAttachment:Thefrontattachment
valve(SV2)orthetankvalve(SV1)is
stuckordamaged.
Remove,clean,inspectandrepairor
replacethevalveifnecessary.
HydraulicSwitchKit(model08783)
RearAttachment:Thefrontattachment
valve(SV3)orthetankvalve(SV1)is
stuckordamaged.
Remove,clean,inspectandrepairor
replacethevalveifnecessary.
Thefrontorrearattachmenthydraulic
motorwillnotengage.
Theattachmentgearpumporcircuit
reliefvalveiswornordamaged.
Verifyattachmentgearpumpoperation;
refertoT estingtheAttachmentCircuit–
AttachmentGearPump(P3)Flowand
ReliefPressureT estintheHydraulic
Systemchapterofthismanual.
RearRemoteHydraulicsKit(model
08781):Theremotehydraulicsvalveis
stuckordamaged.
Remove,clean,inspectandrepairor
replacethevalveifnecessary.
HydraulicSwitchKit(model08783)
FrontAttachment:Thefrontattachment
valve(SV2)orthetankvalve(SV1)is
stuckordamaged.
Remove,clean,inspectandrepairor
replacethevalveifnecessary.
Thefrontorrearattachmenthydraulic
motoroperateswhenitshouldn’t
(enginerunning,PTOswitchoff,and
noOperatorintheseat).
HydraulicSwitchKit(model08783)
RearAttachment:Thefrontattachment
valve(SV3)orthetankvalve(SV1)is
stuckordamaged.
Remove,clean,inspectandrepairor
replacethevalveifnecessary.
Theattachmentgearpumporcircuit
reliefvalveiswornordamaged.
Verifyattachmentgearpumpoperation;
refertoT estingtheAttachmentCircuit–
AttachmentGearPump(P3)Flowand
ReliefPressureT estintheHydraulic
Systemchapterofthismanual.
Thefrontorrearattachmenthydraulic
motorperformspoorly.
Troubleshooting:AttachmentHydraulicProblemsPage3–10
SandPro
®
3040and5040
20251SLRevA