Section V. UNIT TROUBLESHOOTING PROCEDURES

Section IV. PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS) - TM-10-4320-318-14_36

TM-10-4320-318-14 Centrifugal Pump Unit Water 125 (NSN 4320-01-156-3873) Model No. 2x2 SP/52109 EIC: ZHT Manual
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Item No. 3 4 5 6 7 TM 10-4320-318-14 Table 4-1. Unit Preventive Maintenance Checks and Services - (Cont) Interval Semi-Annual Hourly Hourly Hourly Hourly Location Item To Check/ Service Engine Engine Cooling System Fuel Filters Engine Oil Engine Valve Clearance Procedure Check for damage or leaks. Tighten loose mounting hardware. If engine is damaged or leaking, notify supervisor Every 125 hours of operation for accumulation of dirt on inside of flywheen fan cylinder cooling fins. Clean any accumulation. Change fuel filter after every 500 hours of operation (para. 4-23). Change engine oil after first 50 hours of operation for new or overhauled engines. Change en- gine oil every 150 hours thereaf- ter (LO 10-4320-318-12) Check valve clearance after ev- ery 150 hours of operation. Ad- just as requried (para. 4-30). Not Fully Mission Capable If: Loose or damaged mounting hardware, Class III leaks. Dirt on cooling fins and flywheel fan. Hours are exceeded. Hours are exceeded. Section V. UNIT TROUBLESHOOTING PROCEDURES 4-14. Unit Troubleshooting Procedures. Unit troubleshooting procedures listed in Table 4-2 cover the most common malfunctions that may be repaired at the unit level. Repair or adjustment requiring specialized equipment is not authorized unless such equipment is available. Troubleshooting procedures used by the operator should be conducted in addition to the unit troubleshooting procedures. This manual cannot list all the possible malfunctions or every possible test/inspection and corrective action. If a malfunction is not listed or corrected by a listed corrective action, notify your supervisor. SYMPTOM Troubleshooting Procedure (Para) Engine Does Not Start . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Engine Is Hard To Turn . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Black Smoke From Exhaust (Engine May Lack Power, Indicated by Dropping Speed . . . . . . . . . . . . . . . . . . 3 Engine Lacks Power (No Smoke From Exhaust) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 Engine Stops Suddenly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5 Pump Discharge Line Shows Low or No Pressure . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6 4-5

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