TM-9-2350-311-20-1 Maintenance Manual for Volume 1 M109 Hull Download
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TM 9-2350-311-20-1 3-3 TROUBLESHOOTING CHART — CONTINUED s. FUEL LEVEL INDICATOR CIRCUIT — (3) FUEL LEVEL INDICATOR (GAGE) SHOWS LEVEL CONTINUED FOR LOWER FUEL TANK, BUT NOT FOR UPPER FUEL TANK T00ls General mechanic’s tool kit (item 64, Appx H) Engine access door open (TM 9-2350-311-10) Multimeter (item 36, Appx H) Transmission access doors open (TM 9-2350-311-10) TA-1 probe kit (item 43, Appx H) Portable instrument panel cover removed (para 8-17) (Long test leads may be needed for some tests; Drivers instrument panel cover removed (para 8-17) 16 AWG wire maybe used as an extension.) Fuel tanks full (TM 9-2350-311-10) 1. Place FUEL GAGE switch in LOWER position. A 2. 3. 4. 5. 6. Disconnect lead 31 from lower fuel tank transmitter. Turn MASTER switch ON and check FUEL LEVEL gage for a reading. If FUEL LEVEL gage shows a maximum reading, place a jumper wire from lead 31 to ground. Check gage for reading. Turn MASTER switch OFF. Does FUEL LEVEL gage show minimum when grounded and maximum when not grounded? Replace lower fuel tank transmitter (para 6-3). I B 1. Reconnect lead 31 to lower fuel tank . 2. 3. 4. 5. 6. transmitter. Place FUEL GAGE switch in LOWER position. Disconnect lead 31 from FUEL GAGE switch. Place red lead of multimeter in FUEL GAGE switch and black lead to ground. Turn MASTER switch ON and check for voltage. Turn MASTER switch OFF. Is voltage present? I CONTINUED ON NEXT PAGE 3-236 M109A4/M109A5 (ENGINE MODEL 7083-7396) SHOWN