TM-9-2350-311-20-2

HOWITZER, MEDIUM, SELF-PROPELLED, 155MM; M109A2, M109A3, M109A4 AND M109A5

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL FOR CAB, ARMAMENT, SIGHTING AND FIRE CONTROL, ELEVATING AND TRAVERSING SYSTEMS AND ASSOCIATED COMPONENTS

DECEMBER 1993

TM-9-2350-311-20-2 - Page 301 of 828

TM 9–2350–311–20–2

Change 2

5–43

5–17 BUFFER ASSEMBLY

This task covers:

Inspection

INITIAL SETUP

Tools

Artillery and turret mechanic’s tool kit

(SC 5180–95–CL–A12)

Fabricated bracket (Figure E–2, Appx E)

5-ton wrecker

Spacer (Figure E–3, Appx E)

Materials/Parts

Cotter pin (item 41, Appx G)

Personnel Required

2

Inspection

WARNING

•

When working on mount and cannon breech components, with cannon assembly pushed out of

battery, block cannon breech with suitable blocking, or chain tube to hull to prevent accidental

elevation of cannon assembly and injury to personnel or damage to equipment.

•

Operators should be in both vehicles while cannon tube is being pushed out of battery. Brakes in

both vehicles must be fully applied during this operation to prevent injury to personnel and avoid

damage to vehicles.

NOTE

Set breechblock mechanism in closed position before beginning procedure.

1

Position howitzer (1) and 5-ton wrecker (2) on level ground.

2

Set cannon tube (3) to zero elevation (TM 9–2350–311–10).

2

1

3