TM 9-2320-361-34 16-9. HYDRAULIC CYLINDER REPAIR (M342A2) (Contd) c. Assembly 1. Install piston (15) on piston rod (24) with nut (14) and new cotter pin (13). NOTE 2. 3. 4. 5. 6. 7. 8. 9. 10. When installing piston rings, piston ring gaps must be 90° from each other. Install three new piston rings (25) on piston (15). Ensure gaps of piston rings (25) are 90° apart from each other. Install piston (15) and piston rod (24) in hydraulic cylinder (1). Install new O-ring (16) and head (17) on hydraulic cylinder (1) with ten new lockwashers (18) and screws (19). Install new packing (20) and gland (21) on head (17) with three new lockwashers (22) and screws (23). Tighten screws (23) 8-10 lb-ft (11-14 N.m). Install fitting (10) in pin (11). Install pin (11) in hydraulic cylinder (1) with two setscrews (12). Install fluid restnctor (9), new spacer ring (8), and plug (7) in hydraulic cylinder (1). Install three balls (2) and springs (3) in hydraulic cylinder (1) with three plugS (4). Install two new spacer rings (5) and adapters (6) in hydraulic cylinder (1). 16-64