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 224 of 1275

TM 9-2350-311-20-1

3-3 TROUBLESHOOTING CHART — CONTINUED

i.

GLOW PLUGS CIRCUIT (ENGINE MODEL 7083-

(1) GLOW PLUG WAIT LIGHT FAILS TO OPERATE;

7391 ) — CONTINUED

GLOW PLUG SYSTEM OPERATES USING MANUAL

OVERRIDE — CONTINUED

Repair or replace lead 10 of driver’s

instrument panel wiring harness

(para 8-51).

Replace circuit breaker (para 8-33,

3-124

M109A2/M109A3; para 8-34,

M109A4/M109A5).

circuit (para 3-3b).