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TM   5-2815-241-34&P FUEL PUMP - CONTINUED ACTION LOCATION ITEM REMARKS GEAR PUMP REPAIR - CONTINUED NOTE For  general  cleaning  procedures,  see  General  Maintenance  Instructions,  page  2-3. 18. Gear pump housing (1)  and  gear  pump cover  (2) a. Check gear pump housing and gear pump cover for scoring or wear. Discard  if  scored  or  worn. b. Using  0-  to  1-inch  depth  micrometer, measure depth of gear pump housing gear   pocket. Gear  pocket  depth  should  be  0.7478 to  0.7483  inch  (18.994  to  19.006 mm).  Discard  if  depth  exceeds 0.7483  inch  (19.006  mm). c. Using  bore  gage,  measure  shaft  bore diameters in gear pump housing and gear pump cover. Shaft bore should be 0.5013 to 0.5016 inch (12.733 to 12.740  mm). Discard  if  shaft  bores  exceed  0.5016 inch (12.740 mm). 19. Drive  gear  and  shaft (3)  and  driven  gear and  shaft  (4) a. Inspect shafts for wear or scoring. Discard  if  worn  or  scored. b. Using  0-  to  1-inch  micrometer,  meas- ure diameter of shafts. Shafts  should  be  0.4998  to  0.5001 inch  (12.695  to  12.703  mm).  Discard if  worn  smaller  than  0.4998  inch (12.703 mm). c. Check  gears  for  damage. Discard  if  worn. d. Using 0-to 1-inch micrometer, meas- ure  width  of  drive  gear  and  driven  gear. Gear  width  should  be  0.7483  to 0.7486 inch (19.006 to 19.014 mm). Discard  gears  if  smaller  than  0.7483 inch (19.006 mm). 2-296


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