Toro Groundsmaster 7210 - Page 96

TestProcedure(continued)
D.Apressuredropofmorethan15%indicatesatractioncircuitleak(e.g.,a
leakingtransmissioncheckvalve,aworn/damagedtransmissionpiston
pump).Ifchargepressureisgoodundernoload,butthepressuredrops
belowspecicationwhenunderatractionload,thetransmissionpiston
pump(s)areprobablywornordamaged.
Note:Whenapumpiswornordamaged,thechargepumpcannotkeep
upwithinternalleakageinthetractioncircuit.
13.Stopthemachineandshutofftheengine.
14.Releasepressurefromthehydraulicsystem;refertoReleasingPressure
fromtheHydraulicSystem(page4–11).
15.Removethepressuregaugefromthetransmissioncharge-pressuretestport.
16.Installtheplugintotheportandtorquetheplugto17.7to21.5N∙m(13
to15ft-lb).
HydraulicSystem:TestingtheHydraulicSystem
Page4–36
Groundsmaster7210
16222SLRevC