TM 9--2815--247--34 0069 00--11 PISTONS, RINGS, AND ASSOCIATED PARTS REPAIR -- CONTINUED 0069 00 Repair WARNING 1.   Remove minor burrs, nicks or scratches from pistons (10) with abrasive cloth dipped in dry--cleaning solvent. 2.   Replace pistons (10) which are distorted, cracked, worn, abraded, or if oil holes in the ring grooves cannot be cleared or if lands are damaged or broken. 3.   Replace pistons (10) that are badly burred, scratched or are not within limits specified in c. 4.   Replace piston rings (1, 2, 3, or 4) that are scuffed, chipped, scratched, or showing signs of abrasion. 5.   Replace oil control rings (4) if drain holes cannot be cleared. 6.   Replace rings (1, 2, 3, or 4) that are not within limits specified in c. WARNING 7.   Remove minor nicks or scratches on piston pins (13) with abrasive cloth dipped in dry--cleaning solvent. 8.   Replace piston pins (13) which are cracked, or have deep nicks or scratches. 9.   Replace piston pins (13) that are not within limits specified in c. Figure 8 13 10 4 3 2 1