TM-9-2350-311-20-1 Maintenance Manual for Volume 1 M109 Hull Download
Page 296 of 1275
TM 9-2350-311 -20-1 3-3 TROUBLESHOOTING CHART — CONTINUED o. ENGINE WATER TEMP INDICATOR CIRCUIT — (3) ENGINE LOW LEVEL COOLANT LIGHT FAILS TO CONTINUED LIGHT WHEN ENGINE COOLANT LEVEL IS LOW; OPERATES WHEN PRESSED-TO-TEST INITIAL SETUP Tools Personnel Requires General mechanic’s tool kit (item 64, Appx H) Two Multimeter (item 36, Appx H) TA-1 probe kit (item 43, Appx H) Equipment Conditions (Long test leads may be needed for some tests; Engine access door open (TM 9-2350-311-10) 16 AWG wire may be used as an extension.) Transmission access doors open (TM 9-2350-311-10) Portable instrument panel cover removed (para 8-17) 1. Disconnect lead 352B from COOLANT indicator light. 2 Place a jumper wire from lead 352B to ground. 3. Turn MASTER switch ON and press COOLANT indicator light. 4. Turn MASTER switch OFF. Does COOLANT indicator light operate? (para 8-17). Replace COOLANT indicator light CONTINUED ON NEXT PAGE 3-196