8-TROUBLESHOOTING
Loaderattachment-Troubleshooting
Problem
PossibleCauseCorrection
Theliftingcircuitfailsto
operate,issloworloses
power
Valvespoolleaking
Inspectthespoolandcheckitforwearor
scratches
Cylindersealsleakingorcylinderbarrel
damaged
Inspectandresealthecylinder
Thebucketfailsto
operate,issloworloses
power
Thereliefvalvesarestuckopen,settoa
toolowvalueorthereisaleakintheseat
Checkthebucketcircuitreliefvalve
Valvespoolleaking
Inspectthespoolandcheckitforwearor
scratches
Cylindersealsleakingorcylinderbarrel
damaged
Inspectandresealthecylinder
Cylinderleak(spoolsin
neutral)
DamagedcylinderbarrelInspectandresealthecylinder
Internalvalveleak
Inspectthespoolandcheckitforwearor
scratches
Hesitationintheraising
movementoftheloader
attachmentorofthe
bucketcylinderswhen
thecontrolisinitially
actuated
Loadcheckvalvebetweencontrolvalve
sectionsdamaged
Disassembleandinspect
8-12