TM-9-2815-205-24 Technical Manual for M113 Engine 6V53 6V53T Download
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CLEANING WARNING Compressed air used for cleaning purposes will not exceed 30 PSI (207 kPa). Use only with protective equipment (goggles, face shield, gloves, etc.). Failure to comply may result in injury to personnel. Wash all parts in fuel oil and dry with compressed air. END OF TASK INSPECTION-ACCEPTANCE AND REJECTION CRITERIA 1. Inspect lobes and faces of oil pump rotors for scratches or burrs, and surfaces of pump housing and cover for scoring. Remove scratches or score marks with sharpening stone. 2. Inspect splines of inner oil pump rotor for excessive wear. 3. Inspect regulator valve and by-pass valve for wear or damage. Valve must move freely in bore. If valve is scored, clean up with crocus cloth. 4. Inspect valve springs for pitting and fractured coils. 5. Inspect lower front cover for cracks at oil seal bore and valve bores. 6. Inspect plug threads. Threads are acceptable, provided there is no damage that would allow leakage and no blockage of internal passages with plug installed in hole. NOTE Models 5063-5299 has a gear rotor thickness of 1 inch (25.4 mm). Models 5063-5392, 5063-5393, and 5063-539L have a gear rotor thickness of 1-1/4 inch (31.75 mm). 7. Using micrometer depth gage set (Figure 4, Item 34), measure clearance from face of pump housing (Figure 4, Item 18) to face of inner rotor (Figure 4, Item 16) and to outer rotor (Figure 4, Item 17). Clearance should be 0.001–0.0035 inch (0.03–0.09 mm). 8. Measure clearance between inner rotor (Figure 4, Item 16) and outer rotor (Figure 4, Item 17) at each lobe. Clearance should be 0.0005–0.011 inch (0.013–0.28 mm). 0.0005–0.011 in. (0.013–0.28 mm) 16 17 34 18 16 17 MAINT_328 Figure 4. Oil Pump Inspection. END OF TASK TM 9-2815-205-24 0089 0089-5