Toro Groundsmaster 4300-D - Testing the Mow Circuit-Relief Valve (PRV1) and (PRV2) Pressure

TestingtheMowCircuit–ReliefValve(PRV1)and(PRV2)Pressure
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Figure65
Testtheperformanceofthedeckcontrolmanifoldproportionalreliefvalves
(PRV1)and(PRV2)toensurethatthemaximumamountofuidisavailableto
thecuttingdeckmotorsuptothesetreliefpressure.Thistestalsoensuresthat
pump(P1)or(P2)arecapableofgeneratingenoughpressuretoopenproperly
functioningproportionalreliefvalves.
Note:Thefrontcuttingdeckcircuitissuppliedbypump(P2)andisprotectedby
aproportionalreliefvalve(PRV2)inthedeckcontrolmanifold.Therearcutting
deckcircuitissuppliedbypump(P1)andisprotectedbyproportionalreliefvalve
(PRV1);refertotheHydraulicFlowDiagrams(page4–16).
SpecialEquipmentRequired:Flowmeterwithpressuregaugethathasatleasta
56.8L/minute(15gallons/minute)capacity.
Groundsmaster
®
4300-D
Page4–65
HydraulicSystem:TestingtheHydraulicSystem
16226SLRevC