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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.


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