Toro ProLine H800 - Testing the Steering Circuit - Steering Control Valve, Relief Valve Pressure and Steering Cylinder

TestingtheSteeringCircuit-SteeringControlValve,ReliefValve
PressureandSteeringCylinder
g292611
Figure55
Steeringunitperformancewillbeimpactedbyincorrectreartirepressure,
bindinginthehydraulicsteeringcylinder,extraweightonthevehicle,and/or
bindingofthesteeringspindle.Checkfortheseconditionsbeforeproceeding
withanysteeringsystemhydraulictesting.
Note:Thereliefvalveforthesteeringcircuitisintegratedintothesteering
controlvalve.
SpecialEquipmentRequired:
•Pressuregaugeaccuratebelow2500psi.
•Phototach(non−contacttachometer).
TestProcedure
1.Ensurethatthehydraulicuidisatnormaloperatingtemperatureby
operatingthemachineforatleast10minutes.
2.Drivethemachineslowlyinagureeightonaatlevelsurface.
ProLineH800
Page5–49
HydraulicSystem:TestingtheHydraulicSystem
19241SLRevB