TM 9-2320-209-20-3-2 (2) Right side air tank. FRAME 1 1. 2. GO Working at front of air reservoir (1) using 13/16-inch wrench, unscrew coupling nut (2). Using 9/16-inch wrenches, unscrew and take off two capscrews (3) and locknuts (4). Take off retaining strap (5). TO FRAME 2 13-220