TM-9-2350-311-20-1

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

TECHNICAL MANUAL; UNIT MAINTENANCE MANUAL FOR HULL, POWERPLANT, DRIVE CONTROLS, TRACKS, SUSPENSION, AND ASSOCIATED COMPONENTS

AUGUST 1994

TM-9-2350-311-20-1 - Page 807 of 1275

TM9-2350-311

-20-1

8-62 VENTILATED FACEPIECE SYSTEM POWER WIRING HARNESS (M109A4/M109A5)

CONTINUED

d.

Installation

1

2

3

4

5

6

7

8

9

Install wiring harness (15) and connector (2) at cannoneer’s heater (10).

Install connector (5) at NBC power switch (9).

install connector (4) at NBC indicator light (8).

Install portable instrument panel (para 8-18).

Install connector (3) at driver’s heater (7).

Install connector (1) at NBC air purifier (6).

Remove seven screws (11 ), seven Iockwashers (1 2), seven washers (1 3), and seven straps (1 4). Discard

Iockwashers.

Secure wiring harness (15) and install seven straps (14), seven washers (13), seven new Iockwashers (12),

and seven screws (11 ).

Install wiring harness (15) and six new straps (16).

FOLLOW-ON MAINTENANCE:

NOTE

Connect batteries (para 8-28)

8-162