Miller Nitro 7380 - Hydraulic System Troubleshooting

8-TROUBLESHOOTING
Hydraulicsystemtroubleshooting
WARNING
Escapinguid!
Hydraulicuidordieselfuelleakingunderpressurecanpenetratetheskinandcauseinfectionor
otherinjury.Topreventpersonalinjury:Relieveallpressurebeforedisconnectinguidlinesorper-
formingworkonthehydraulicsystem.Beforeapplyingpressure,makesureallconnectionsaretight
andallcomponentsareingoodcondition.Neveruseyourhandtocheckforsuspectedleaksunder
pressure.Useapieceofcardboardorwoodforthispurpose.Ifinjuredbyleakinguid,seeyour
doctorimmediately.
Failuretocomplycouldresultindeathorseriousinjury.
W0178A
Ifhydraulicsystemperformanceisunsatisfactory,checkthefollowingtroubleshootingguideforpossibleproblems
andsolutions.
Suspectparameter
Failuremode
Courseofaction
HydraulicOilLevelOilLevelLowReferto7-44.
HydraulicOilT emperatureOilT emperatureHighSeeyourMILLERdealer.
BrakeSupplyPressure
PressureLow
SeeyourMILLERdealer.
HydrostatPressurePressureLow
SeeyourMILLERdealer.
CaseFilterPressure
FilterNeedsReplacement
Referto7-84.
HydraulicOilFilter
FilterNeedsReplacement
Referto7-84.
HydrostatFilterFilterNeedsReplacement
Referto7-81
AuxiliaryPumpPressureFilterNeedsReplacement
SeeyourMILLERdealer.
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