TM 9-2320-209-34-2-1 c. Air Cylinder Piston Assembly Repair. (1) Disassembly. FRAME 1 1. 2. GO CAUTION Use only bench vise with soft copper or lead jaws. Parts can Put pushrod Take off nut TO FRAME 2 be damaged. (1) into vise close to piston (2). (3) and follower (4). 12-16