8-TROUBLESHOOTING
Problem
PossibleCauseCorrection
Zerosettingcannotbe
obtainedanymore
Errorinadjustingdeviceforcontrolleverof
variabledisplacementhydraulicpump
Checkadjustingdeviceforcorrectfunction
andreadjust,ifnecessary
Travelcircuitoverheating
(Exceeding90°)
Hydraulicoilcoolerclogged
Cleancoolingdevices
LackofoilinhydraulictankFillinfreshoil,ifnecessary
Hydraulicoillterand/orsuctionline
clogged
Replacehydraulicoillter
Internalleaks,Pumpreliefvalvesjamming
andnotfullclosing.Internalcomponents
invariabledisplacementhydraulicpumpor
hydraulicmotorsdamaged
ContactCASECONSTRUCTIONDealer
Noiseduringtravel
operation.
Airinpropulsion.
LackofoilinHydraulicoiltank.
Suctionlinesleaking
Checkoillevelinhydraulicoiltanksandll
freshoilifnecessary.
Checksuctionlinesforleaks.
Note:-Heavyfoaminginhydraulicoiltank
isanindicationofairinthepropulsion
Insufcienthosesandpipeclearanceorin-
sulation
Hosesandpipesmustnotcomeintocon-
tactwithmetal.
Coathoseclipsandpipeclampswithrub-
berforthepurposeofnoiseinsulation
InternalComponentsinvariabledisplace-
menthydraulicpumporhydraulicpumpor
hydraulicmotorsdamaged
Getthesystemrepairedbythe“ServiceEn-
gineer”
Sluggishaccelerationand
deceleration
Decreasedenginepower
SeeEngineoperator’smanual
Airinpropulsion
Lackofoilinhydraulictank
Suctionlinesleaking
Checkoillevelinhydraulictankandrell
freshoil,ifnecessary
Checksuctionlinesforleaks.
Note:Heavyfoamgenerationinhydraulic
oiltankisanindicationofairinthepropul-
sion.
Internalcomponentsinvariabledisplace-
menthydraulicpumporhydraulicpumpor
hydraulicmotorsdamaged
Getthesystemrepairedbythe“ServiceEn-
gineer”
Insufcientchargepressure.
Hydraulicoillterclogged.
Suctionlineclogged.
Chargecircuitpressurereliefvalveinll-
ingpumpnotclosinginternalcomponents
invariabledisplacementhydraulicpumpor
hydraulicmotorsdamaged
Checkchargepressure.
Replacehydraulicoillter.
Cleansuctionline.
ContactCASECONSTRUCTIONDealer
Internalwearordamagetovariabledis-
placementhydraulicpumpormotor
Getthesystemrepairedbythe“ServiceEn-
gineer”
8-7
To Next Page
Loading...
