REPLACEMENT - TM-55-1905-223-24-90131

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FIGURE 4-4. Rudder Assembly.

TM-55-1905-223-24-9 Steering Gear System for Landing Craft Utility (LCU) NSN 1905-01-154-1191 Manual

Repair Helm Pump.

TM 55-1905-223-24-9

REPAIR

Repair or replacement of rudder assembly is performed in drydock facilities.

REPLACEMENT

a. Rudder (Port).

(1) Secure rudder stock (3) to rudder (1) with nuts and bolts (2).

(2) Raise rudder into position for installation.

(3) Install bearing retainer (17), lower bearing (16), rudder trunk (15), ring packing (13), preformed packing

(12) and gland packing (14), and continuous thread studs (9) on rudder stock (3).

(4) Install upper bearing (8), upper bearing housing (10), carrier bearing (7), carrier bearing (6), thrust bearing

(5), and nut (4) on rudder stock (3).

(5) Install pintle (23), upper spacer bearing (22), shoe bushing (21), lower spacer bearing (20), shoe plate (19),

and machine bolts (18) on rudder lower unit.

(6) Replace tiller arm assembly (paragraph 4-9).

(7) Lubricate rudder assembly at lube fitting (11) (LO 55-1905-223-12).

b. Rudder (Starboard). Repeat steps a(1) through a(7) above.

c. Operate and Test.

(1) Restore power to pumpset.

(2) Return equipment to service.

(3) Remove "Out of Service - Do Not Operate" tag from circuit breaker.

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