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 TM 55-1905-223-24-16
e. Operate and Test.
(1) Restore all electrical power.
(2) Set relief valve (3) clockwise to mid-setting.
NOTE
If pump does not prime, shut down hydraulic power pack assembly and correct problem.
(3) Push motor START button (1, FIGURE 2-3) and check if motor running indicator (2) is lit. Observe pressure
gauge (2, FIGURE 2-4) for an increase in pressure build-up.
(4) Push motor STOP button (9, FIGURE 2-3) on stern control box. Ensure hydraulic lines are secured and
hose connections are tight.
WARNING
Escaping pressurized air and/or liquids can cause serious personal injury.
(5) Bleed off trapped air in system by momentarily turning relief valve (3, FIGURE 2-4) counterclockwise until
hydraulic fluid begins to appear.
(6) Push motor START button on stern control box.
(7) Set relief valve (3) clockwise for 2,900 psi while observing pressure gauge (2).
NOTE
The spring loaded failsafe brake automatically locks the drive train and prevents winch operation when the
hydraulic power pack assembly is shut down or during loss of hydraulic pressure.
(8) Check that failsafe brake is released by observing cathead rotation when winch control switch (8, FIGURE
(9) Push motor STOP button (9, FIGURE 2-3) on stern control box to shut down hydraulic power pack
assembly.
(10) Remove "Out of Service - Do Not Operate" tag from circuit breaker on main switchboard and control panel
on stern control box.
2-25
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