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TM   5-2815-241-34&P GEARCASE   COVER   INSTALLATION   -   CONTINUED ACTION LOCATION ITEM REMARKS 16. Gearcase  cover  (1) Crankshaft  face  (2) 17. Crankshaft face (2) Vibration   damper   (3) 18. Vibration   damper   (3) 19.  Gearcase  cover  (1) 20. Crankshaft face (2) Crankshaft  face  (2) Vibration   damper   (3) 21. 22.  Engine  mount  (6) Six  screws  (4),  six Using   1/2-inch   drive   5/8-inch   socket, new  lockwashers  (5), 6-inch  extension,  and  ratchet  handle, and  engine  mount  (6) screw  in  and  tighten. Two  screws  (7)  and two  new  lock- washers   (8) Using   1/2-inch   drive   12-point   7/16-inch socket  and  ratchet  handle,  screw  in  and tighten. Apply  a  light  coat  of  lapping  cutting  fluid. Put  on  and  lap  by  turning  vibration  damper one-fourth  to  one-half  turn  back  and  forth, until  both  crankshaft  and  vibration  damper are  mated. a.  Take  off. b. Clean  all  cutting  fluid  from  crankshaft and  vibration  damper. Apply a light even coat of prussian blue. Put on and turn one-quarter turn and take off. Contact  area  should  be  100  percent for  distance  of  1/2  Inch  (12.70  mm) at large diameter of crankshaft face. Remainder  of  taper  must  have  70  to  80 percent  of  contact. CAUTION Do  not  lubricate  when  using  gearcase  cover  casting  numbers  115562,  115563,  175183, and   175185. 23.  Gearcase  cover  (1) Crankshaft  face  (2) Lubricate  with  lubricating  oil. WARNING Due to excessive weight, assistance will be needed to prevent personal injury when lifting heavy parts. 24. Crankshaft face (2) Vibration   damper   (3) Put  on. Have assistant hold In place. 25.  Vibration  damper  (3) Six  screws  (9)  and six new lock- washers  (10) Using  1/2-inch  drive  7/8-inch  socket  and ratchet  handle,  screw  in  until  snug. 2-94 Change  1


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