TM    5-2815-241-34&P WATER  PUMP  -  CONTINUED ACTION LOCATION ITEM REMARKS 25. Impeller  (3) 26. 27. 28. Pulley  (9) New   preformed   pack- ing  (10)  and  by-pass pipe  (11) By-pass pipe (11), clamp  (12),  and screw  (13) a. Support water pump (1) on pulley end of shaft  (5). b. Using arbor press and mandrel, press on impeller, maintaining 0.020 to 0.040  inch  (0.5  to  1.01  mm)  clearance between  impeller  and  cavity. a. Support  water  pump  (1)  on  impeller  end of shaft (5). b. Using arbor press and mandrel, press pulley on shaft until pulley hub is flush  with  shoulder  on  shaft. Check  assembly  for  freedom  of rotation. Lubricate  packing  with  clean  lubricating  oil and slide into groove on by-pass pipe. Position in water pump and, using 1/2-inch box-end  wrench,  tighten. NOTE FOLLOW-ON  MAINTENANCE: Install water pump (page 2-121). TASK  ENDS  HERE T A    2 4 2 6 1 2 2-413