TM 55-1930-209-14&P-13
I.
In void 1, turn motor controller HAND/OFF/AUTO to OFF.
m.
Remove hydraulic tank filler cap and check fluid level. Add hydraulic fluid until level is within 1 inch of
bottom of filler neck.
n.
Replace cap and make sure it is tight.
o.
Remove red tag from motor controller and record maintenance action in log book.
3-19.2.2.5.3 Replacement.
a.
Removal
(1)
Make sure hydraulic power unit is electrically dead by opening (OFF) switchboard
circuit breaker P16. Redtag circuit breaker with: 'WARNING - DO NOT ACTIVATE.
REPAIRS BEING MADE."
(2)
Remove drain plug from bottom of hydraulic power unit tank and drain hydraulic fluid
to bilge tank.
(3)
Replace drain plug.
(4)
Tag and disconnect cable (P16c) from hydraulic power unit motor.
(5)
Disconnect piping to hydraulic power unit.
(6)
Remove mounting hardware.
(7)
Remove hydraulic power unit.
b.
Installation.
(1)
Install hydraulic power unit on foundation and loosely secure to foundation.
(2)
Connect piping.
(3)
Connect electrical cable.
(4)
Tighten mounting hardware.
(5)
Remove filler cap and fill tank with new hydraulic fluid. Fill to within 1 inch of top of
filler neck.
(6)
Replace filler cap and make sure it is tight.
(7)
Turn motor controller HAND/OFF/AUTO switch to HAND.
c.
On deckhouse top control panel inside watertight box, push START button on START/STOP control station
to start hydraulic power unit.
NOTE
After filling bow crane hydraulic unit initially, crane movement may be jerky
and erratic until the system works out air in the hydraulic lines.
d.
Operate bow crane by extending all booms to their maximum length, raising them to maximum height, and
slewing crane in a complete circle to the left and then to the right. Continue to operate crane without load
until it runs smoothly in all actions.
e.
Stop hydraulic power unit by pushing STOP button on START/STOP control station on deckhouse top.
f.
In void 1, turn motor controller HAND/OFF/AUTO to OFF.
g.
Remove hydraulic tank filler cap and check fluid level. Add hydraulic fluid until level is within 1 inch of
bottom of filler neck.
h.
Replace filler cap and make sure it is tight.
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