TestingtheTractionCircuit–WheelMotorEfciency
g355180
Figure33
TractionCircuit–WheelMotorEfciencyT ests
Wheelmotorefciencyisthesecondinaseriesoftestsrecommendedto
determinetractioncircuitperformance.Toomuchhydraulicuidowthrougha
singlestationarywheelmotorunderloadindicatesaninternalleakinthewheel
motor.Awornwheelmotorislessefcient.Eventually,enoughuidby−passwill
causethewheelmotortostallunderheavyloadconditions.Continuedoperation
cangenerateexcessiveheat,causedamagetosealsandothercomponentsin
thehydraulicsystem,andaffectoverallmachineperformance.
Therearemomentsduringwheelmotoroperation(gerollerposition)whenuid
owthroughthemotorislessrestricted.Ifawheelmotoristestedinthis
SandPro
®
3040and5040
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