TM-9-2350-311-20-1 Maintenance Manual for Volume 1 M109 Hull Download
Page 210 of 1275
TM 9-2350-311-20-1 3-3 TROUBLESHOOTING CHART — CONTINUED h. FLAME HEATER CIRCUIT (ENGINE MODEL FLAME HEATER DOES NOT OPERATE — CONTINUED 7083-7396) — CONTINUED CONTINUED FROM STEP D 1. Disconnect lead 486 from pump and motor assembly. 2. Place red lead of multimeters in lead 486 and black lead to ground. 3. Turn MASTER and FLAME HEATER switches ON and check for voltage. 4. Turn MASTER and FLAME HEATER switches OFF. Is voltage present? Replace pump and motor assembly (para 5-9). 1. Reconnect lead 486 to pump and motor assembly. 2. Disconnect powerplant wiring harness from flame heater disconnect. 3. Place red lead of multimeters in socket A (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. CONTINUED ON NEXT PAGE 3-110 I