LAUNCH FRAME - DRIVE SPROCKETS

TM 5-5420-279-23

5 - 040 LAUNCH FRAME - DRIVE SPROCKETS

This task covers:

a. Remove

b. Install

INITIAL SETUP:

Tools Required

Tool Kit, General Mechanic's, Automotive (GMTK)

Puller (Shop Set Contact Maintenance Truck HMMWV)

Materials Required

Thread locking compound, loctite 243

Loctite adhesive 641

Equipment Conditions

A-Frame deployed

Remove the launch beam drive motor, see maintenance procedure 5-034 and

place on a suitable working surface

WARNING

DANGER TO PERSONNEL FROM MOVING PARTS. ENSURE THAT THE

LAUNCHER IS NOT OPERATED DURING THIS PROCEDURE.

Remove

(1)

Remove two socket head screws (1) from sprocket (2).

(2)

Using a puller remove sprocket (2).

(3)

If required remove key (3) from shaft.

(4)

Inspect components for damage and corrosion.

(5)

Examine socket head screws for damage to bolt heads and threads.

(6)

Replace components as required.

Install

(1)

Fit key (3) into shaft using key way retaining adhesive, (Loctite 641 or equivalent).

(2)

Fit sprocket (2) to shaft.

(3)

Apply thread locking compound to the socket head screws (1).

(4)

Secure sprocket (2) with socket head screws (1).

Change 1 5-159