TM 9-2320-209-20-3-2 FRAME 2 1. Using 5/8-inch open end wrench, hold elbow (1). Using 13/16-inch combina- tion box and open end box wrench, unscrew and take off tube nut (2). 2. Using 5/8-inch open end wrench, unscrew and take off elbow (1). END OF TASK 13-94