TM 9-2320-209-20-3-2 (c) Elbow and adapter assembly CAUTION Fittings are made of soft brass. They can be stripped very easily if tightened too much. Tighten fittings just enough to stop fuel from leaking. NOTE Elbow and adapter on the master used for this typical procedure. cylinder is FRAME 1 1. Using 7/8-inch open end wrench, screw in and tighten adapter (1). 2. Using 7/8-inch open end wrench, hold adapter (1). Using 7/16-inch open end wrench, screw in and tighten elbow (2). 3. Using 7/16-inch open end wrench, hold elbow (2). using 3/8-inch combination box and open end wrench, screw in and tighten tube nut (3). 4. Close master cylinder hatch (4). Using screwdriver, tighten screw on hatch. NOTE Follow-on Maintenance Action Required: Bleed hydraulic system. Refer to para 13-15 and 13-16. END OF TASK 13-106