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ChargePressureTest(UsingPressureGauge)(MachineSerial

Numbersbelow316000000)

Achargepressuretestshouldbeperformedtoidentifyifawornordamaged

hydrostatictransmissioniscausingahydraulicsystemproblem.

Note:Beforeconductingchargepressuretest,determinecounterbalance

pressuresettingforthemachine;refertotheTractionUnitOperator’sManual.

1.Ensurethatthehydraulicuidisatnormaloperatingtemperature.

2.Parkmachineonalevelsurfacewiththecuttingdeck(orimplement)lowered

andPTOswitchoff.Ensurethattheengineisshutoff.Settheparkingbrake

andblockthefrontwheelstopreventmachinemovement.

3.ReadallWarning,Cautions,andprecautionslistedatthebeginningofthis

section.

CAUTION

Beforeopeninghydraulicsystem,operateallhydrauliccontrolsto

relievesystempressureandavoidinjuryfrompressurizedhydraulic

uid.

g230801

Figure59

1.Seatbaseopening2.Checkvalve

3.Pipeplug

g230802

Figure60

1.Pipeplug

Groundsmaster

3280-D/3320

Page5–49

HydraulicSystem:TestingtheHydraulicSystem

05138SLRevB

Toro 30403 Service Manual

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