Service Manual

Table Of Contents
Troubleshooting
Thefollowingchartcontainssuggestionsthatcanbeusedtosolveperformance
issuesspecictothehydraulicsystem.Thesuggestionsarenotall-inclusive.
Therecanbemorethan1causeforamachinemalfunction.
ReviewthehydraulicschematicfoundinAppendixA(pageA–1)and
informationonthehydraulicsystemoperationintheHydraulicFlowDiagrams
(5410/5410-D/5510/5510-D/5610)(page6–20)orHydraulicFlowDiagrams
(5610-D)(page6–32).Thisinformationwillbeusefulduringthehydraulic
troubleshootingprocess.
RefertoT estingtheHydraulicSystem(page6–56)forprecautionsandspecic
hydraulictestprocedures.
GeneralHydraulicSystemProblems
Problem
PossibleCauses
Thehydraulicuidisleakingfromthesystem.Thetting(s),hose(s),ortube(s)arelooseordamaged.
TheO-ring(s)orseal(s)aremissingordamaged.
Thehydraulicuidfoamsexcessivelycausinguidleakage
fromthehydraulictankbreather.
Note:Someaerationofthehydraulicuidonthismachine
isnormal.Thisaeration(foaming)maybemorenoticeable
afterinitialllingofhydraulictank.
Thehydraulic-uidlevelinthehydraulictankislow.
Thehydraulicsystemhasawrongtypeofuid.
Oneofthepumpsuctionlineshasanairleak.
Incompatiblehydraulicuidsaremixedinthesystem.
Thereiswaterinthehydraulicsystem.
Thehydraulicsystemoperateshot.Thetractionsystempressureishighduetoloadordragging
brakes.
Thehydraulic-uidlevelinthehydraulictankisloworthe
inletlterislooseorclogged.
Thehydraulicuidiscontaminatedortheuidviscosity
istoolight.
Theoilcoolerisdamagedorplugged.
Theoilcoolerairowisobstructed.
Thehydraulic-uidlterisplugged.
Thepiston(traction)pumpbypassvalveisopenor
damaged.
Thegearpumpreliefvalveisstuckopen.
Thecheckvalveinthepiston(traction)pumpisnotseating
orisdamaged.
Thechargepressureislow.
Thepiston(traction)pumporwheelmotor(s)iswornor
damaged.
EngineRPMistoolow.
Theenginefanisnotoperatingproperly.
Note:If1tractioncircuitcomponenthasinternalwearor
damage,itispossiblethattheothertractioncomponents
arealsodamaged.
HydraulicSystem:Troubleshooting
Page6–50
Reelmaster
®
5410/5510/5610Series
15216SLRevE