33 - 5
Bucket (BKT) Operation
When pilot pressure is applied to port br2 by operating the
right hand joystick controller, the spool E moves to the left,
closing off the neutral gallery F. Oil from pump P2 is directed
to the outlet port BR2 by lifting the check valve G. Oil from
pump P1 flowing through the neutral gallery F is re-directed
by applying pilot pressure to the centre bypass valve J,
combining the high pressure flow from both pumps to crowd
the bucket.
Oil returns to tank via port AR2. When pilot pressure is
applied to port ar2, the reverse operation occurs.
Section E Hydraulics
9803/6410
Section E
33 - 5
Issue 1
Control Valve
JS01730
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