Toro Groundsmaster 5900 Series - Page 124

RightWingDeckRaise
Toraisetherightwingdeck,therearoftherightconsoleswitchispushedtoact
asaninputtotheslaveTEC.Thecontrollerprovidesanelectricaloutputto
solenoidvalvesS1andS7inthesteering/deckliftmanifold.Theenergized
solenoidvalvesshifttoallowapassageforcircuitoilowtothebarrelendof
therightdeckliftcylinder.ShiftedS1preventsoilowfromreturningdirectlyto
thetractionchargecircuit.ShiftedS7allowsanoilpaththroughoriceOR6(to
controlraisingspeed),thecheckvalveatS9(de−energized),thecheckvalve
atOR7andtothebarrelendoftheliftcylindertoextendtheliftcylinderand
raisetherightwingdeck.OilfromtheextendingcylinderisdirectedthroughS8
(de−energized)andreturnstothehydraulicreservoir.
Whenthedeckswitchisreleased,themanifoldsolenoidsarede−energizedand
theliftcylinderandrightwingdeckareheldinposition.
LeftWingDeckRaise
Toraisetheleftwingdeck,therearoftheleftconsoleswitchispushedtoact
asaninputtotheslaveTEC.Thecontrollerprovidesanelectricaloutputto
solenoidvalvesS1andS2inthesteering/deckliftmanifold.Theenergized
solenoidvalvesshifttoallowapassageforcircuitoilowtothebarrelendof
theleftdeckliftcylinder.ShiftedS1preventsoilowfromreturningdirectlyto
thetractionchargecircuit.ShiftedS2allowsanoilpaththroughoriceOR2(to
controlraisingspeed),thecheckvalveatS4(de−energized),thecheckvalve
atOR3andtothebarrelendoftheliftcylindertoextendtheliftcylinderand
raisetheleftwingdeck.OilfromtheextendingcylinderisdirectedthroughS3
(de−energized)andreturnstothehydraulicreservoir.
Whenthedeckswitchisreleased,themanifoldsolenoidsarede−energizedand
theliftcylinderandleftwingdeckareheldinposition.
HydraulicSystem:HydraulicFlowDiagrams
Page5–24
Groundsmaster
®
5900&5910
16227SLRevB