DECKMASTER
7.2
Operation
7.2.1
Winch Operation
The operation of the winch is controlled by the two joystick handles mounted on the winch frame. To release the
disc brake, pull the brake (left) handle to the OFF position. Pressure will be applied to release the brake for rotation. As
the brake handle is returned to the ON position, the pressure is released from the disc brake, and the hydraulic motor and
winch drum are locked in position.
The winch (right) handle regulates the pilot pressure signal transmitted to the stroke control on the piston pump.
This in turn controls the stroke (displacement) of the pump to regulate the direction and rate of flow to the
hydraulic motor on the winch. The winch handle is simply pulled toward the operator for winch rotation in the pull-in
direction, and is pushed away from the operator for payout rotation.
The winch drive hydraulic circuit is set for a maximum pressure of 3,200 psi. The relief valves are included in
the circuit for the protection of the hydraulic components and the overall winch system. THESE RELIEF SETTINGS
MUST NOT BE INCREASED ABOVE 3,200 PSI. The relief settings can be checked by the following procedure:
(1)
Place the brake handle in the ON position. This will lock the disc brake (23) and prevent winch drum rotation.
(2)
Close the ball valve (18).
7-3 *
