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TM 9-2320-360-34-1
WARNING
Never disconnect any hydraulic hose while engine is
running. Allow several minutes after shutdown for
engine pressure to drop.
HYDRAULIC SYSTEM TEST
NOTE
· Winch testing should be done with 10 ft (3 m)
of cable payed out and no load on cable.
· Winch hydraulic reservoir filter should be at
least warm to the touch and engine on high
idle during troubleshooting.
(1) Remove brake hose from S1 port on counterbalance
valve.
(2) Install tee, pressure gage and pressure hose on
counterbalance valve.
(3) Start engine, engage PTO and high idle
(TM 9-2320-360-10).
(4) Pull up or push down winch control lever and observe
pressure.
(5) Release winch control lever, disengage high idle and PTO,
and shut off engine (TM 9-2320-360-10).
(6) Remove pressure hose, pressure gage and tee from
counterbalance valve.
(7) Remove brake hose from hydraulic systems tester.
(8) Install brake hose on S1 port of counterbalance valve.
DRIVE MOTOR TEST
NOTE
· Winch hydraulic reservoir should beat
least warm to the touch and engine on
high idle during winch troubleshooting
· Winch assembly will leak gear oil when
drive motor is removed.
(1) Remove two screws, lockwashers and drive motor
from winch assembly with aid of assistant
(2) Start engine and engage PTO and high idle
(TM 9-2320-360-10).
(3) Operate winch drive motor by pulling up and pushing
down on control lever while assistant supports motor.
(4) Disengage high idle and PTO and shut off engine
(TM 9-2320-360-10).
NOTE
If results of troubleshooting indicate faulty
winch drive motor, do not do step (5)
(5) Install drive motor on winch assembly with two new
lockwashers and screws with aid of assistant
2-185
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