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Attachment - Dipper Out
Pressurised oil from port A1 (front pump) enters port 5P
of the control valve. Pressurised oil from port A2 (rear
pump) enters port 4P of the control valve.
When operating dipper out with the left hand joystick,
the pilot pressurised oil flows through the cushion valve
into port 5Pb2 and switches dipper spool (1) and dipper
spool (2).
When switching each spool, the pressurised oil from
port 4P and port 5P is merged inside the control valve
and high speed is achieved.
Section E Hydraulics
9803/6020
Section E
3 - 26
Issue 1
Schematics
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