TM-9-2815-202-34 Technical Manual for 8V71T Engines for M109 Howitzer Download
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TM 9-2815-202-34 4-43. WATER PUMP REPAIR (Cont) WARNING Compressed air used for cleaning purposes will not exceed 30 PSI. Use only with effective chip guarding and personal protective equipment (goggles/shield, gloves, etc.). (2) (3) (4) (5) (6) Dry all parts with compressed air. Inspect pump impeller for cracks, burrs, or damage. If ceramic insert is damaged, replace pump impeller. Inspect housing and cover for cracks, wear, or damage. Inspect shaft for scores, discoloration, or damage. Inspect inner and outer bearings for pits, discoloration, or damage. c. Assembly (1) Lubricate bearings (12 and 13) inner surfaces and shaft (8) bearing surfaces with engine oil. CAUTION When installing bearings, support inner race only or damage to bearing may result. (2) (3) (4) (5) (6) 4-264 Using installer (18), press inner bearing (12) and outer bearing (13) onto shaft (8). Support pump body (4) with cover side down, and press bearings and shaft into pump body. Install lock ring (11) in groove of shaft (8). Using installer (18), press gear (5) onto impeller end of shaft (8) until gear is flush with end of shaft. Lubricate new oil seal (14) and shaft (8) seal surface with engine oil.