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Hydraulic System
Caution: To allow the rephasing system to
work correctly, all air must be purged from
the system. Air within the system may exhibit any of the following symptoms: Uneven
frame heights, Spongy feel, sagging of
frame, Hoses vibrate and squeal and erratic
movement of cylinders.
Note: A dual-pilot check valve is mounted
on the left hand side of the centre frame
which allows the hydraulic couplings to be
disconnected from the tractor whilst the circuit is under pressure.
The working depth of the implement can be
limited with mechanical depth stops fitted
to the master cylinder/s. A pressure relief
valve is used to limit the retract pressure of
the depth control circuit to 10.4MPa
(1500psi). This is done to protect the cylinder depth stop plates from excessive load.
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