Unic URW295CR - Oil Flow During Boom Up;Hook Up;Slewing CW

（１０−６）
Whenelectriccurrentflowsthroughthesolenoidcoilwiththeoutput
signalsuppliedoutofcontrolbox,thecoreismagnetizedaccordingly.
Thespoolinthesolenoidmovesupwardleadingthepilotpressure
tothepistonwhichinturnallowsthespooltomovetotheleft.
Thisconnectsthereturncircuittothetankandatthesametime
connectstheoilin"P1"tothecircuitactuatingboom‑up,hook‑up,
boomretraction,andslewingC.W..
Raise
Up
Retract
C.W
Detectsspoolposition
toapplysignalinput
tocontrolbox.
Pilotpressure
10.6Oilflowinthevalvebodywhenboomup,hookup,boomretraction,
andslewingC.W.arefunctioning
Piston
Spool
Spool
Core
Pressureregulatorvalves
foreachcontrolelement
Shuttlevalve
Differential
transformer
1
TankTank
ProportionalsolenoidＯＮ
Raise,Up,Retract,C.W
Actuatorport
Raise,Up,Retract,C.W
Actuatorport
Lower,Down,Extend,C.C.W
Proportionalsolenoid ＯＦＦ
Lower,Down,Extend,C.C.W
Ｐ