TM   5-2815-241-34&P PISTON   ASSEMBLY   INSTALLATION INITIAL  SETUP Tools Compressor,   piston   ring,   ST-1176 Expander,   piston   ring,   ST-763 Gage,  thickness Handle,   ratchet,   1/2-inch   drive Socket,   15/16-inch,   1/2-inch   drive Wrench,  torque,  0  to  250  ft  lb  (0  to 350 NY•m), 1/2-inch drive Materials/Parts Gear  oil  (item  9,  appendix  B) Materials/Parts  -  Continued Oil, lubricating (item 12, appendix B) Piston  ring  set Covering,  suitable  connecting  rod Personnel  Required Two Equipment   Condition Crankshaft   installed   (page   2-54). ACTION LOCATION ITEM REMARKS CAUTION Care should be taken not to scratch cylinder sleeves. Piston ring failure may occur. NOTE New  rings  and  bearings  are  included  with  piston  assembly. Before  performing  step  1,  lightly  coat  cylinder  sleeves  and  piston  rings  with  lubricating oil. Number  stamped  on  side  of  connecting  rod  and  cap  indicate  cylinder  number  from  which the piston was removed. Check ring end gap in cylinder number stamped on connecting rod  and  connecting  rod  cap. Steps given are typical for all six piston assemblies and all four piston rings. 2-60