Repair Input Shaft. (FIGURE 4-2)

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FIGURE 4-1. Input Shaft Replacement.

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

DISASSEMBLY

TM 55-1905-223-24-2

4-9. Repair Input Shaft. (FIGURE 4-2)

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

INITIAL SETUP

Equipment Condition

Tools

Deep well sockets, 1/2-inch drive

TM 55-1905-223-24-10, Engine secured,

12 pt, 10mm through 27mm,

tagged "Out of Service, Do Not Operate."

5120-01-113-8078

Refer to the following paragraphs in this

Combination wrench set, metric

maintenance manual:

10mm through 24mm,

Gearbox drained (PMCS Item 9)

5120-01-046-4979

External hardware removed (para. 2-14)

Strong back P/N 57864-850

Fluid transmission cooler removed (para. 2-17)

Hydraulic nut P/N 220485

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

Bearing puller P/N ST-1249

Control valve removed (para. 2-20)

Hydraulic press P/N 200913

Torsional coupling removed (para. 2-21)

Snap ring pliers, 5120-00-595-9551

External input/intermediate shafts removed (para. 3-11)

Input shaft removed (para. 4-8)

Materials/Parts

General Safety Instructions

Anti-friction bearing

P/N WAV850-E15, WAV850-17,

Be very careful using the hydraulic nut.

WAV850-R15, WAV850-R13,

Component breaks loose with explosive force.

WAV850-R14

Shaft sealing ring P/N WAV850-Ell

Check valve P/N WAV850-K10

Shop cloth, Item 6, Appendix D

Solvent, Item 4, Appendix D

Crocus cloth, Item 9, Appendix D

SAE10 oil, Item 11, Appendix C

Warning tags, Item 12, Appendix C

Overview of Input Shaft.

This repair procedure includes installing many new bearings. You will also be using a special hydraulic nut.