TM 9-2320-209-20-3-2 FRAME 3 Soldier A 1. Hold upper air reservoir (1) in place. Soldier B 2. Working from behind upper air reservoir (1) and using 7/16-inch socket wrench, unscrew and take off four locknuts (2). 3. Take off two U-bolts (3). Soldier A 4. Take off upper air reservoir (1). GO TO FRAME 4 13-185