Toro ProLine H800 - Steering Circuit

SteeringCircuit
g292117
Figure31
Thechargepumpsuppliestheuidowforthesteeringcircuit,heightofcut
control,andtheauxiliarycontrolcircuit.Thepumpoutputowsrsttothe
steeringcontrolvalvebeforereachingtheheightofcutvalve,sothatthesteering
circuithaspriority.Thesteeringcircuitpressureislimitedtoa120-125bar
(1,740-1,813psi)byareliefvalvelocatedinsidethesteeringcontrol.Whenthe
steeringwheelisnotbeingturnedandtheengineisrunning(hydraulicpressure
ispresent),chargepumpowentersthesteeringcontrolvalveatthePportand
bypassesboththerotarymeterandsteeringcylinder.Flowleavesthesteering
controlvalvethroughtheEport,andisdirectedtotheheightofcutcontrolvalve.
ProLineH800
Page5–19
HydraulicSystem:HydraulicFlowDiagrams
19241SLRevB