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 675 of 828

TM 9–2350–311–20–2

Change 2

18–7

3

Install machine screw (6) to exit port.

4

Position strap (5) on purging valve stem (3). Apply sealing compound to threads of purging valve stem then

screw into M118A2/M118A3 elbow telescope (4).

5

Install valve core (2) to purging valve stem (3) and air valve cap (1) to strap (5).

6

Install air valve cap (1) on purging valve stem (3).

7

Install lamp (11) in access cover (12) of M118A2 elbow telescope only.

8

Install knob (14) and setscrew (13).

NOTE

Nitrogen charge was released when valve core and exit port machine screw were removed.

9

Purge and charge (TM 750–116).

6

14

13

12

11

7

8

9

10

3

5

2

1

15

16

4