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 752 of 1275

TM 9-2350-311-20-1

d. Installation

Ensure MASTER switch is OFF when working on hull electrical system to avoid

electrical shocks and bums.

NOTE

•

On vehicles with engine model 7083-7396, connectors 14, 15, and 16 are part of

connector 22 and are used for the flame heater system. On vehicles with engine

model 7083-7391, connectors 14, 15, and 16 are part of connector 22 and are

used for the glow plug controller system.

•

Access to wires 10 thru 12 will be through driver's compartment.

1 Install powerplant wiring harness.

2 install two clamps (29), two screws (28), two clamps (27), and two screws (26).

3 Install two leads (13 and 9) at starter solenoid (25). Install two flat washers (24) and two nuts (23).

4 Connect 11 electrical connectors (1 thru 8 and 10 thru 12).

5

Connect five electrica

l connectors (18 thru 22).

NOTE

FOLLOW-ON MAINTENANCE:

Close transmission access doors (para 11 -7)

Install engine access cover (para 11-5)

Connect batteries (para 8-28)

Close air intake grille (para 11 -8)

8-107

WARNIN G