ARMY TM 9-6115-464-12AIR FORCE TO 35C2-3-445-1NAVY NAVFAC P-8-624-12Table 3-1. Operator Troubleshooting - ContinuedMALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTION11. ENGINE OVERHEATING.Step 1.Step 2.Step 3.Low coolant level.Check coolant level. Add coolant as necessary (para 3-27).Radiator air passages dogged.Clean radiator air passages (para 3-27).Collapsed radiator hoses.Notify higher level of maintenance.12. BATTERY CHARGING AMMETER SHOWS NO CHARGE WHEN BATTERIES ARE LOW OR DIS-CHARGED.Battery dry.Refill battery cells with distilled water (para 3-4).13. AC VOLTMETER INDICATES VOLTAGE, BUT FREQUENCY METER IS OFF SCALE.Engine speed is too slow.Adjust frequency rheostat (precise sets only) (para 2-6). Increase engine speed with manualspeed control (utility sets only) (para 2-6).3-15/(3-16 blank)
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