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TM 55-1915-200-10
WARNING
Moving ramp and winch parts can
Before starting hydraulic pump, clear
cause serious injury or death.
personnel and foreign objects from
(1) Move control valve (8, Sheet 2 of 2)
stern ramp, fairleads, wire rope and
RIGHT to tension wire rope and release strain from
ratchet dogs (1, FIGURE 2-163).
sheaves.
b. Start stern ramp hydraulic pump as follows:
(2) Attach ladder (3, FIGURE 2-163) to port
edge of mezzanine deck.
(1) Turn on circuit breaker No. 1 (FIGURE 2-
101, Sheet 17 of 21) at power panel P3 in Emergency
(3) Release two port ratchet dogs (1).
Generator room, main deck aft.
(4) Attach ladder (3) to starboard edge of
(2) Depress PUSH TO RESET button (1,
mezzanine deck.
FIGURE 2-162, Sheet 1 of 2).
(5) Release two starboard ratchet dogs (1).
(3) Depress START button (3, Sheet 1 of 2)
(6) Remove and stow ladder (3).
on motor controller.
(7) Move control valve (8, FIGURE 2-162,
WARNING
Sheet 2 of 2) LEFT. Hold control valve to LEFT until
High pressure hydraulic systems can
ramp reaches desired position.
cause serious injury if equipment
(8) Stop ramp movement by moving control
fails.  Do not operate if hydraulic
valve (8, Sheet 2 of 2) to center NEUTRAL.
pressure exceeds 2000 psi.
e. Raise stern ramp as follows:
NOTE
(1) Conduct pre-operation check of controls
Hydraulic pump can also be started
as prescribed in step a.
or stopped at remote controls (10
WARNING
and 11, Sheet 2 of 2).
Before raising stern ramp, clear
c. Check hydraulic pressure gauge (6, Sheet 1 of
personnel and foreign objects from
2). If pressure exceeds 2000 psi, depress STOP button
stern ramp, fairleads, wire ropes and
(4, Sheet 1 of 2) on motor controller.  Report high
related components.  Moving ramp
pressure reading to unit maintenance.
and winch parts can cause serious
d. Lower stern ramp as follows:
injury or death.
WARNING
(2) Move control valve (8, Sheet 2 of 4)
Before
lowering
ramp,
clear
RIGHT.  Hold control valve to RIGHT until ramp is
personnel and foreign objects from
closed.
stern ramp, fairleads, wire ropes and
related components.
2-469

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