TM 10-3930-669-34 (4) Install sleeve bushing (12) and locating pin (11) in connecting rod (9). Use   care   when   installing   snap   ring and  retaining  rings.    Snap  ring  and retaining rings are under spring tension   and   can   act   as   projectiles when released and could cause severe eye injury. (5) Install one retaining ring (7) in piston (10). Use   care   when   working   around   hot pistons.         Gloves     must     be     worn. Severe  burns  can  result  if  protective measures are not taken. NOTE Step (6) below may not be necessary. Try to perform step (7) below first. (6) Using piston heater, heat piston (10) to approximately 176°F (80'C). (7) Apply a light coat of oil to pin (8) and install connecting rod (9) in piston (10) with pin (8). (8) Install other retaining ring (7) in piston (10). 3-71