Replace Torsional Coupling. (FIGURE 2-7)

Custom Search

FIGURE 2-6. Control Valve.

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

REPLACEMENT

TM 55-1905-223-24-2

2-21. Replace Torsional Coupling. (FIGURE 2-7)

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

INITIAL SETUP

Tools

Equipment Condition

Deep well sockets, 1/2-inch drive,

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

12 pt, 10 mm through 27 mm,

tagged "Out of Service, Do Not Operate."

5120-01-113-8078

Combination wrench set, metric,

General Safety Instructions

10 mm through 24 mm, 5120-

01-046-4979

Use a lifting sling.

Lifting sling P/N 3375958

Materials/Parts

Torsional coupling P/N EZR1022-

1300/111

WARNING

The torsional coupling is heavy. Attach a lifting sling to the coupling before

attempting removal/replacement to prevent serious personal injury.

REMOVAL

a. Attach a lifting sling to the coupling (1) and take up enough weight to allow removal.

b. Remove the bolts (2) and washers (3) from housing (4) to release the coupling 91) from the flywheel adapter flange

(5).

Remove the bolts (6) and washers (7) from the hub (8).

d. Slide the coupling element (10) forward as far as it will go.

NOTE

Connecting bolts are alternated with spring pins.

Change 1

2-38