Toro 31050 - Testing the Wheel Motors Efficiency

TestingtheWheelMotorsEfciency
g292862
Figure47
Thewheelmotorefciencytestevaluatesthetractioncircuitperformance.
Hydraulicuidowof2.8LPM(0.74GPM)ormorethroughastationaryrear
wheelmotorunderloadindicatesaninternalleakinthewheelmotor.Fluid
owof3.4LPM(0.9GPM)ormorethroughastationaryfrontwheelmotor
underloadindicatesaninternalleakinthewheelmotor.Awornwheelmotor
islessefcient.Toomuchinternaluidbypasswillcausethewheelmotorto
stallunderheavyloadconditions.Continueduseofawornwheelmotorwill
generateexcessiveheat,causingdamagetosealsandothercomponentswithin
thehydraulicsystem.
Duringthenormalprocessofwheelmotoroperation,therateofuidowthrough
themotorvariesbasedontherotatingpositionofthewheel.Forthisreason,the
testprocedureincludescheckinghydraulicowthroughthemotorafterrotating
thewheelto3differentpositionstogetmultiplereadings.
HydraulicSystem:TestingtheHydraulicSystem
Page5–38
ProLineH800
19241SLRevB