TM 9-2320-209-20-3-2 FRAME 3 1. 2. 3. 4. GO CAUTION Do not tighten coupling nuts too much. Screw on and finger tighten coupling nuts onto fittings, then using wrench, tighten nuts 1/8 turn. Put lower air reservoir (1) in place as shown. Put two U-bolts (2) over air reservoir and through brackets (3). Working from under bracket (3) and using 7/16-inch socket wrench, screw on and tighten four locknuts (4). Using 13/16-inch wrench, screw on and tighten coupling nut (5) to elbow (6). Using 13/16-inch wrench, screw on and tighten coupling nut (7) to elbow (8). TO FRAME 4 13-189