TM 10-4320-344-10Table 3-1. Troubleshooting Table. (Continued)MALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTION7 .MODEL 609-A ENGINE IS OVERHEATING.Step 1.Step 2 .Step 3.Check to see if radiator fins are dirty or clogged, damaged, orleaking.a.Stop engine (manual mode - paragraph 2.5.1.1, step k; electric.manual mode - paragraph 2.5.1.2, step o; electric automatic mode- paragraph 2.5.1.3,step e) and clean dirty or clogged fins.Go to step 2.b .Stop engine (manual mode - paragraph 2.5.1.1, step k; electricmanual mode - paragraph 2.5.1.2, step o; electric automatic mode- paragraph 2.5.1.3, step e) and notify unit maintenance.Check engine coolant level.Add engine coolant as required.Check to see if radiator hoses are damaged or leaking.Stop engine (manual mode - paragraph 2.5.1.1, step k; electric manualmode - paragraph 2.5.1.2, step o; electric automatic mode - paragraph2.5.1.3, step e) and notify unit maintenance.8.MODEL 609-C OR MODEL US636HCCD-1 ENGINE IS OVERHEATING.Step 1.Step 2.Check to see if cylinder cooling fins and oil cooler are clogged(Table 2-11, item 16 or Table 2-12, item 11.Remove obstructions and scrap cooling fins.Check to see if cooling air blower belt is loose, damaged, or broken.Notify unit maintenance.9.ENGINE AMMETER (MODELS 609-A OR US636HCCD-1) OR VOLTMETER (MODEL 609-C)INDICATES HIGH OR LOW RATE OF CHARGE.Step 1. Check to see if battery is cracked or battery connections are loose orcorroded.Clean and tighten connections as required.Step 2. Check fluid level in battery cells.Notify unit maintenance.10. EXHAUST SMOKE EXCESSIVELY BLACK.Check to see if air filter needs to be serviced (Table 2-10, item 21; Table 2-11, item 17; or Table 2-12, item 10).Notify unit maintenance.3-4
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