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 291 of 828

TM 9–2350–311–20–2

Change 2

5–35

d.

Preparation for Service

1

Lace cable through muzzle brake (10) and secure to wrecker boom (8).

2

Slowly retract wrecker boom (8) to pull cannon tube (3) back into battery.

3

Secure the shaft collar (4) with spacer, install slotted nut (6) and new cotter pin (5) on recuperator piston

shouldered shaft (7). Remove spacer.

4

Remove fabricated bracket (9) and cable from wrecker boom (8).

5

Close the breech.

6

Adjust cap screw (18) to set damper assembly (19) to the correct length of 4 inches (10.16 cm).

18

19

4” (10.16 cm)

10

9

3

8

7

6

5

4

SPACER