TM 9-2320-209-20-3-2 FRAME 4 1. Slide two air reservoirs (1) one inch toward rear of truck. 2. Working at front of air reservoirs (1) and using 13/16-inch wrench, unscrew coupling nut (2). 3. Using 7/8-inch wrench, unscrew coupling nut (3). GO TO FRAME 5 13-194