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 276 of 828

TM 9–2350–311–20–2

5–20

Change 2

5–8

BREECHBLOCK

ASSEMBLY

This task covers:

Inspection and Repair

INITIAL SETUP

Tools

Artillery and turret mechanic’s tool kit

(SC 5180–95–CL–A12)

Equipment Condition

Spindle assembly removed (para 5–7)

Inspection and Repair

1

Inspect breechblock (1) for damaged threads. Repair threads or replace breechblock.

2

Inspect gear segment (2) of breechblock (1). Replace breechblock if damaged or distorted.

3

Deleted.

1

2

NOTE

Breechblock is shown

removed for clarity.