Stern Ramp Winch and Stern Ramp Operation

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