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 209 of 1275

TM 9-2350-311-20-1

CONTINUED FROM STEP E

1. Reconnect lead 486 to the flame heater

ignition coil assembly.

2. Disconnect powerplant wiring harness from

flame heater disconnect.

3. Place red lead of multimeters in socket C

(lead 486) and black lead to ground.

4. Turn MASTER and FLAME HEATER

switches ON and check for voltage.

5. Turn MASTER and FLAME HEATER

switches OFF.

Is voltage present?

Notify support maintenance.

Repair or replace lead 486 of

powerplant wiring harness (para 8-43,

3-109

M109A2/M109A3; para 8-44, M109A4/