Unic URW295CR - Oil Flow During Boom Down;Hook Down;Slewing CCW

（１０−７）
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‑down,hook‑down,
boomextension,andslewingC.C.W..
10.7Oilflowinthevalvebodywhenboomdown,hookdown,boomextension,
andslewingC.C.W.arefunctioning
Shuttlevalve
Ｐ1
Actuatorport
Raise,Up,Retract,C.W.
Actuatorport
Lower,Down,Extend,C.C.W.
Differential
transformer
Pilotpressure
Spool
TankTank
Proportionalsolenoid ＯＮ
Raise,Up,Retract,C.W.
Proportionalsolenoid ＯＦＦ
Lower,Down,Extend,C.C.W
Detectsspoolposition
toapplysignalinput
tocontrolbox.
Core
Pressureregulatorvalves
foreachcontrolelement
Lower
Down
Extend
C.C.W.
Piston
Spool