Toro Groundsmaster 4500-D Series - Page 157

ProcedureforReverseTractionCircuitReducingValve(PR)PressureTest(continued)
7.Releasetractionpedaltoneutral,stopengineandrecordtestresults.
g308370
Figure66
1.Reartractionmanifold3.Relief(RV)valve
2.#6zeroleakplug4.Reducing(PR)valve
8.Thepressurereducingvalve(PR)islocatedonthebottomofthereartraction
manifold(Figure66).Iftestpressureisincorrect,adjustpressurereducing
valve(PR)(seeAdjustControlManifoldReliefValvesintheAdjustments
sectionofthischapter).Recheckpressurereducingvalvepressureafter
anyadjustment.
Note:Thereartractioncircuitreliefvalve(RV)pressuretestusesthe
samepressuregaugepositionasusedtomeasuretractioncircuitpressure
reducingvalve(PR)pressure.Ifnecessary,conductthereartractioncircuit
reliefvalve(RV)pressuretestbeforeremovingpressuregaugefromrear
tractionmanifold.
9.Whentestingiscompleted,disconnectpressuregaugefromtheinstalled
diagnostictting.Removediagnosticttingfrommanifoldandinstallremoved
plugintomanifold.Torqueplugto34N·m(25ft-lb).
Groundsmaster
®
4500-D/4700-D
Page5–55
HydraulicSystem:Testing
19245SLRevA