Repair Output Shaft. (FIGURE 4-7)

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REPLACEMENT-cont.

TM-55-1905-223-24-2 Main Reduction Gear for Landing Craft Utility (LCU) NSN 1905-01-154-1191 Manual

FIGURE 4-7. Output Shaft.

TM 55-1905-223-24-2

4-13. Repair Output Shaft. (FIGURE 4-7)

This task covers: a. Disassembly, b. Repair, c. Assembly.

INITIAL SETUP

Tools

Equipment Condition

Deep well sockets, 1/2-inch drive

12 pt, 10 mm through 27 mm

TM 55-1905-223-10, Engine secured,

5120-01-113-8078

tagged "Out of Service, Do Not Operate."

Combination wrench set,

Refer to the following paragraphs in this

10 mm through 24 mm, metric

maintenance manual:

5120-01-046-4979

Gearbox drained (PMCS Item 9)

Strong back P/N 57864-850

External hardware removed (para. 2-14)

Hydraulic press P/N 200913

Fluid transmission cooler removed (para. 2-17).

Bearing puller P/N ST-1249

Double changeover filter removed (para. 2-18).

Materials/Parts

Control valve removed (para. 2-20)

Anti-friction bearing

Torsional coupling removed (para. 2-21)

P/N WAV850-P22,

External input/intermediate shafts

WAV850-P21, WAV850-P20

removed (para. 3-11)

Helical compression spring

Upper casing removed (para. 4-8)

P/N WAV850-G28

Input shaft removed (para. 4-8)

Solvent, Item 4, Appendix C

Intermediate shaft removed (para. 4-10).

Shop cloths, Item 6, Appendix C

Middle casing removed and output shaft

Warning tags, Item 12, Appendix C

removed (para. 4-12)

General Safety Instructions

Components are very heavy. Be sure to use

proper lifting equipment and exercise

care.

DISASSEMBLY

CAUTION

The output shaft coupling is heavy. Have an

additional soldier available to assist in removal.

a. Remove rear anti-friction bearings.

(1) Remove cotter pin (23).

4-27