60 - 6
Section E Hydraulics
9803/6410
Section E
60 - 6
Issue 1
Slew Brake Valve
Operation (JS130) (cont’d)
Slew Brake (100% Application)
When the solenoid valve 6 for slew lock is energised, the
spool 1 moves down, stopping oil from passageway C.
Return oil from the slew motor enters port B and flows
through spool passage 2 to tank port T. Simultaneously,
brake release pressure oil enters port B and flows to tank T,
allowing 100% brake force to be applied.
JS02120
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