Case 695ST - Swing

8-TROUBLESHOOTING
Swing
PROBLEMPOSSIBLECAUSECORRECTION
Theswingcircuitreliefvalvesare
notseating,settoatoolowvalueor
thereisaleakintheseat.
Testtheswingcircuitreliefvalve.
Valvespoolleaking.
Inspectthespoolandcheckitfor
wearorscratches.
Rightorleftswingisinoperative,is
toosloworlosespower.
Cylindersealsleakingorcylinder
barreldamaged.
Inspectandresealthecylinderand
theringnut.
Built-inslidinglimiterdamaged.Disassembleandinspect.
Theswingfailstoslowdown(bearing
stop)atstrokeend.
Cylindersealsleakingorcylinder
barreldamaged.
Inspectandresealthecylinder.
Thecircuitreliefvalve(returnside)is
stuckopen,settoatoolowvalueor
thereisaleakintheseat.
Testtheswingcircuitreliefvalve.
Theswingdoesnotstopwhenthe
controlleverreturnstoneutral(one
directiononly).
Valvespoolleaking.
Inspectthespoolandcheckitfor
wearorscratches.
Internalvalveleak.
Inspectthespoolandcheckitfor
wearorscratches.
Cylinderleak(spoolsinneutral).
Cylindersealsleakingorcylinder
barreldamaged.
Inspectandresealthecylinder.
Acircuittemporarilylowerswhen
giventhecontroltolift.
Loadcheckvalvebetweencontrol
valvesectionsdamaged.
Disassembleandinspect.
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