TM 5-4320-306-10Table 3-1. Operator/Crew Troubleshooting-ContinuedMALFUNCTIONTEST OR INSPECTIONCORRECTIVE ACTIONStep 5. Check for broken or damaged V-belts.Perform the checks and services of table 2-2, item 33.If V-belts are damaged or broken, contact organizational maintenance.Step 6. Inspect intake duct assembly.Perform the checks and services of table 2-2, item 4.Step 7. Check fuse in control panel.6. EXCESSIVE LUBRICATING OIL CONSUMPTIONStep 1. Check that engine speed is correct for the specific gravity of liquid being pumped. Refer to pumpperformance data plate.Adjust MANUAL THROTTLE CONTROL until engine is running at correct speed (para 2-6.g.).Step 2. Check exhaust. If exhaust discharge contains oil, excessive oil is being burned in engine cylinders oraround cylinder valve stems.Notify organizational maintenance.Step 3. With engine not running, check oil cartridge, oil sump, drain tube fitting, drain tube, oil cooler, oil pumpcover, turbocharger feed line, and turbocharger return line for oil leaks.If leaking, notify organizational maintenance.7. LOW OIL PRESSUREStep 1. Check the oil pressure sensing line for leaks. Leaks will cause false gage reading.If leaking, notify organizational maintenance.Step 2. Check that crankcase is filled to the correct level.CAUTIONDo not overfill. Oil will be blown out through crankcase breather if crankcase is overfilled.a. If level is low, remove oil filler cap and add proper grade oil as required to maintain correct oil level.b. Start engine and observe oil pressure gage. If oil pressure is still low, notify organizational maintenance.Change 1 3-7
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