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 515 of 828

TM 9–2350–311–20–2

Change 2

9–13

2

Connect five electrical leads at quick disconnects (9).

NOTE

Do not tighten cap screws until adjustment is completed.

3

Install electrical contact arm (5) on hull using four cap screws (6) and four new lockwashers (7). New shims

(8) should be used as necessary to secure correct clearance (para 9–3f.).

4

Using two cap screws (3) and two new lockwashers (4), attach free end of two ground straps (1) and ground

wire (2) from harness to hull.

5

Adjust electrical contact arms (5) to segment board (para 9–3f.).

9

100

GND

100

GND

41

42

43

L1

L2

8

7

6

5

4

3

2

1

1