Replace Output Shaft. (FIGURE 4-6)

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ASSEMBLY-cont.

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

FIGURE 4-6. Middle Casing and Output Shaft Replacement

TM 55-1905-223-24-2

4-12. Replace Output Shaft. (FIGURE 4-6)

This task covers: a. Removal, b. Replacement

INITIAL SETUP

Equipment Conditions

Tools

Deep well sockets, 1/2 inch drive

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

12pt, 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)

Lifting sling P/N 3375957

Fluid transmission cooler removed (para. 2-17)

Strong back P/N 57864-850

Double changeover filter removed (para. 2-18)

Control valve removed (para. 2-20)

Torsional coupling removed (para. 2-21)

Materials/Parts

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

Input shaft removed (para. 4-8)

Warning tags, Item 12, Appendix C

Upper casing removed (para. 4-8)

Intermediate shaft removed (para. 4-10)

General Safety Instructions

Components are very heavy. Be sure to use

proper lifting equipment and exercise care.

REMOVAL

a. Remove middle casing.

(1) Remove capscrews/nuts (1), (2) and (4).

(2) Remove capscrews (7).

WARNING

The middle casing is heavy. Attach a lifting sling

and hoisting device when removing or replacing the

middle casing.

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