TM 9-2320-361-20 8-21. AIRBRAKE HAND CONTROL VALVE REPLACEMENT This task covers: a. Removal b. Installation INITIAL SETUP: APPLICABLE MODELS EQUIPMENT CONDITION All Parking brake set (TM 9-2320-361-10). MATERIALS/PARTS Air reservoirs drained (TM 9-2320-361-10). Two lockwashers GENERAL SAFETY INSTRUCTIONS Antiseize tape (Appendix C, Item 27) Do not disconnect air lines before draining air REFERENCES (TM) reservoirs. TM 9-2320-361-10 TM 9-2320-361-20P a. Removal 1. 2. 3. 4. WARNING Do not disconnect air lines before draining air reservoirs. Small parts under pressure may shoot out with high velocity, causing injury to personnel. NOTE Tag all air lines for installation. Remove valve outlet air line (8) from adapter (9). Remove two air supply lines (7) from two adapters (6). Remove two screws (2), lockwashers (3), clamp (4), and hand control valve (1) from steering column (5). Discard lockwashers (3). Remove two adapters (6) and adapter (9) from hand control valve (1) and inspect for stripped threads, cracks, or breaks. If cracked, broken, or threads are stripped, replace adapters (6) and (9) and hand control valve (1). b. Installation NOTE All male pipe threads must be wrapped with antiseize tape before installation. 1. Install two adapters (6) and adapter (9) on hand control valve (1). 2. Install hand control valve (1) on steering column (5) with clamp (4), two new lockwashers (3), and screws (2). 3. Install two air supply lines (7) on two adapters (6). 4. Install outlet air line (8) on adapter (9). 8-48