Replace Directional Control Valve

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FIGURE 2-8. Hydraulic Pump.

TM-55-1905-223-24-15 Bow Anchor Windlass Subsystem for Landing Craft Utility (LCU) NSN 1905-01-154-1191 Manual

FIGURE 2-9. Directional Control Valve.

TM 55-1905-223-24-15

2-20. Replace Directional Control Valve. (FIGURE 2-9)

This task covers: a. Removal, b. Replacement.

INITIAL SETUP

Tools

Equipment Condition

Tool kit, general mechanic's,

Windlass inoperative (para. 2-13).

Electrical power removed from

hydraulic power pack and tagged

Materials/Parts

"Out of Service."

Directional control valve

P/N A3D03-33-B01-03-A-14CS

Wiping rags, Item 1, Appendix C

Electrical ID tags, Item 7,

REMOVAL

WARNING

Do not attempt the following procedure on a pressurized system.

Escaping pressurized

hydraulic fluid can cause serious personal injury.

CAUTION

During replacement of directional control valve, all openings should be covered to prevent

foreign matter or contaminants from entering the system.

a. Disconnect pipe fittings from part A (15) and part B (14) on subplate (16).

b. Disconnect couplers (1 and 3) from fittings (2 and 4).

c. Disconnect fitting (2) from directional control valve (12).

d. Disconnect pipe nipple (5) and fitting (4) from directional control valve (12).

e. Remove machine screws (6) securing symbol plate (7) and preformed packing (8) to wiring box (10). Remove

symbol plate (7) and preformed packing (8).

f. Inside wiring box (10), tag and disconnect electrical wire connections to electrical solenoid (11).

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