TM 55-1930-209-14&P-17
2-17.2 Bow crane procedures. From deckhouse top stowage, the workboat is deployed and recovered through use of
the bow crane. The bow crane is mounted on the bow weatherdeck and is shown in Figure 2-10 in its traveling
configuration. Complete instructions for operating and maintaining the bow crane are contained in TM 551930-209-14&P-
13. When being used to deploy or recover the workboat, obey the following precautions:
WARNINGS
Never use the crane to move the workboat when the barge is rolling
50 or more.
Always use the shortest possible boom reach that will provide a
safe clearance of all obstacles.
Never use a boom extension of more than 35 feet 7 inches for
moving the workboat.
Never use this crane for moving the workboat when the barge is
rolling 5% or when Safety NCOIC deems it unsafe.
2-17.2.1 Bow crane operating controls. Bow crane operating controls are located forward on the deckhouse top.
These controls consist of five movement levers (Figure 2-10 for Barge 1 and Figure 2-11 for Barges 2 and 3).
2-17.2.2 Bow crane prestart procedures
a.
Check barge maintenance log on bow crane and its hydraulic system. Make sure there are no discrepancies that
would prohibit operating the bow crane.
b.
Make sure switchboard circuit breaker P16 is ON.
CAUTION
Due to high pressure in hydraulic system, crane can NOT be
operated with any visible leaks. These must be repaired prior to
use. Correct leaks in flexible hose, hardpiping or joints. Do not
confuse seepage around hydraulic packing on actuator arms with
leaks. A small amount of such seepage is acceptable.
c.
In void 1, visually inspect hydraulic pump, motor and hydraulic system hard piping for leaks or damage. Do not
use system until such leaks have been repaired.
d.
Remove filler cap on hydraulic tank and make sure fluid level is within 1 inch of bottom of filler neck. If fluid is
below this level, add hydraulic fluid before using crane. Screw on filler cap tightly before starting hydraulic pump.
Crane operator, for safety reasons, must stand on port side of control panel. Two or more control handles may be moved
at the same time.
Control 1 Controls turning of crane. Push away and crane turns counterclockwise. Pull back and crane moves clockwise.
Control 2 Controls inner boom movement. Push away and inner boom moves up. Pull back and inner boom moves
down.
Control 3 Controls outer boom movement. Same as control 2.
Control 4 Controls boom extension. Push away and boom retracts. Pull back and boom extends.
Control 5 Controls winch. Push away and winch cable retracts. Pull back and winch cable extends.
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