TM 9-2320-209-20-3-4 FRAME 2 1. Using allen wrench, screw in and tighten pipe plug (1) in control valve (2). 2. Using wrench, screw in and tighten elbow (3) as shown. 3. Using wrench, screw in and tighten reducer pipe (4) or elbow (5) as shown. END OF TASK 23-114