(3) (3) ① Disassemble the piston assembly Disassemble the piston assembly Remove wear ring (16) and piston seal (15). Exercise care in this operation not to damage the grooves. 16 15 7407ASE42 (4) (4) ① Disassemble gland assembly Disassemble gland assembly Remove back up ring (11), and O-ring (10). Remove O-ring (12). Remove snap ring (9) and dust wiper (8). Remove back up ring (6), rod seal (5). Remove buffer ring (7). Exercise care in this operation not to damage the grooves. Do not remove seal and ring, if does not damaged. 8,9 12 5,6 7 10,11 4 ② ③ ④ ⑤ 7407ASE43 5-37