TM 10-3930-669-34 WARNING • Primary cylinder assembly weighs 80 lbs (36 kg).  Attach suitable lifting device prior to removal to prevent possible injury to personnel. • All personnel must stand clear during lifting operations.  A swinging or shifting load may cause injury or death to personnel. (8) Using lifting device, remove primary cylinder (40) from mast assembly (15). (9) Remove four cotter pins (44), two pins (45), and primary chains (32) from anchors (46).   Discard cotter pins. (10) Remove   two   lock   nuts   (47)   and   anchors   (46) from inner rail (48).  Discard lock nuts. 13-9