Toro 08743 - Page 109

TestProcedure(continued)
Note:Thereliefvalvesettingis22,050kPa(3,200psi).Anadditional
690kPa(100psi)isnecessarytoovercomesystemchargepressure
beforethereliefvalveopens.
D.Releasethetractionpedal,opentheowcontrolvalvefully,movethe
throttletolowspeed,andsetthekeyswitchtotheOFFposition.
15.Ifthereliefpressurecannotbemetorisgreaterthanspecied,theforward
tractionreliefvalveisdamagedandshouldberepairedorreplaced.
16.Theunderloadtestowreading(step13)shouldnotdropmorethan12%
(6LPM(1.6GPM))whencomparedtothenoloadtestowreading(step
12).Adifferenceofmorethan12%(UnderLoad>NoLoadX0.88)may
indicatethehydraulicpumpiswornandshouldbereplacedorrepaired;
refertoPiston(traction)Pump(page5–70)orServicingthePiston(traction)
Pump(page5–74).
17.Aftertesting:
A.Removethehydraulictesthoseandtester.
B.Removethecapsandconnectthehydraulichosesandtubes.
C.Checkandadjustthelevelofthehydraulicuidinthehydraulicreservoir;
refertothetractionunitOperator’sManual.
D.Starttheengineandcheckforanyhydraulicuidleaks.Repairhydraulic
leaksifnecessarybeforereturningthemachinetoservice.
E.Removethejackstandsandlowerthemachinetotheground.
SandPro
®
3040and5040
Page5–39
HydraulicSystem:TestingtheHydraulicSystem
20251SLRevA