ARMY TM 9-6115-464-12AIR FORCE TO 35C2-3-445-1NAVY NAVFAC P-8-624-12Table 4-2. Unit Troubleshooting - ContinuedMALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTION12. ENGINE COOLANT TEMPERATURE TOO LOW.Step 1.Step 2.Step 3.Step 4.Thermostat stuck open.Replace thermostat (para 4-43).Improperly adjusted shutter or control linkage and thermostat.Adjust or replace shutter and control assembly (para 4-39).Replace defective control linkage or thermostat (para 4-37).Defective temperature transmitter.Replace temperature transmitter (para 4-20).Defective coolant temperature gauge.Replace coolant temperature gauge (para 4-63).13. BATTERY CHARGING AMMETER SHOWS NO CHARGE WHEN BATTERIES ARE LOW OR DISCHARGED.Defective alternator fuse.Step 1.Step 2.Step 3.Step 4.Step 5.Step 6.Replace fuse in back of alternator (para 4-19, Figure 4-18)Improperly adjusted alternator.Adjust alternator (para 4-19).V-belt is out of adjustment or broken.Adjust or replace V-belt (para 4-40)Defective alternator.Replace alternator (para 4-19).Open wire or loose connection in charging circuit.Check charging circuit wiring. Replace broken wires and tighten loose connections (para 4-14).Batteries dry.Refill battery cells with distilled water (para 4-14).4-14
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