Remove filler cap on hydraulic tank and make sure level is within 1 inch of bottom of filler neck. If below this level,
add hydraulic fluid before using crane. Be sure this cap is screwed on tight before starting hydraulic pump.
In void 1, push up on top switch on hydraulic pump controller (aft bulkhead) and set side switch to AUTO position.
On forward weatherdeck, visually check exposed hardpiping and flexible hydraulic lines for cracks or leaks.
Check crane base to ensure it is secure and make sure forward weatherdeck is dear of any material that might
obstruct bow crane movement.
On deckhouse top, inside watertight control box, make sure anti-two block system is activated.
Inside watertight control box, push START button on START/STOP panel. High pitched whine of hydraulic pump
will indicate crane is ready for use.
Using crane control sticks, deploy crane from traveling position. Extend all booms to their maximum length and
slew crane around in at least one complete circle. During these movements, check for any change in pitch of the
hydraulic pump noise and any jerky, sticking, or uneven movement of any part of the crane. If such symptoms
are noted, check crane carefully before using. See TM 55-1930-209-14 & P-13 for details on crane maintenance.
10-13.5 Procedures for deploying workboat
Crewmembers, crane, and workboat must never touch VHF/FM antenna mounted
outboard of starboard railing. Antenna may contain high voltage that will seriously
Move crane to position hook over center of workboat in its cradle on deckhouse top.
On workboat, make sure two seawater drain plugs on bottom of hull are installed with properly fitting gaskets and
Take boat lifting harness from storage in cabin and attach to three lifting points on workboat; two eyes on bottom
of stem mooring bitts and one eye under cabin floor. Open aft cabin top hatch to allow front lifting harness to
reach crane hook without damaging cabin top.
Place lifting harness ring in crane winch hook and use crane winch to take up slack in harness.
Non-Commissioned-Officer-in-Charge (NCOIC) must supervise crane operator and
crewmembers on control lines to control boat movement. Crane operator cannot
see all portions of workboat when it is being moved. To control crane movement,
NCOIC uses hand signals (Figure 10-11) or walkie-talkies to give directions to
Attach at least two control lines to boat to prevent swinging, twisting, and yawing when crane lifts boat from
Check crane winch hook and harness alignment to make sure it will lift boat vertically.
When ready, release tension on three tiedown straps (Figure 10-12) on each side of cradle and station
crewmembers on control lines. Using crane winch, lift boat about 6 inches vertically from cradle.
If all is under control, unhook three tie-down straps on each side of cradle.
Lift boat vertically to dear all items on deckhouse top and slew crane in a counterclockwise direction to move boat
over starboard side. Keep control lines tight (Figure 10-13).
Keep control lines tight to control boat during movement.