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 757 of 1275

TM 9-2350-311 -20-1

8-44 POWERPLANT WIRING HARNESS (M109A4/M109A5) — CONTINUED

c. Assembly

1 Assemble wiring branch (para 2-12) of wires replaced.

2 Apply electrical tape as necessary for assembly.

d. Installation

1

2

3

4

5

6

7

8

WARNIN G

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

electrical shocks and burns.

NOTE

•

Access to wires 11, 12, and 13 will be through driver’s compartment.

Ž

Wire 15 is plugged.

Ž

Powerplant must be removed to remove starter lead (10) (para 4-5).

Install powerplant wiring harness.

Connect 13 electrical connectors (2 thru 9 and 11 thru 16).

Connect two electrical connectors (17 and 18).

Connect electrical connector (1) at engine disconnect bracket (20).

Install four new Iockwashers (22), four washers (23), four screws (24), and four nuts (21).

Connect driver’s bulkhead-to-master relay wiring harness (19) at engine disconnect bracket (20).

Install lead (10) at starter solenoid (27), flat washer (26), and nut (25).

Install four clamps (34), four new Iockwashers (33), four screws (32), two clamps (31), two washers (29), two

screws (28), and two nuts (30).

8-112