TM 10-3930-669-34 3-13. PISTON AND CONNECTING ROD ASSEMBLY REPLACEMENT/REPAIR (CONT). (2) Remove   locating   pin   (11)   and   sleeve   bushing (12) from connecting rod (9). (3) Remove  trapezoidal   ring   (13),   two   taper-faced rings  (14),  and  oil  control  ring  (15)  from  piston (10). 3-68