TM 9-2320-209-20-3-2 FRAME 4 CAUTION 1. 2. 3. 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 tube (1) between two elbows (2) as shown. Using 13/16-inch wrench, screw on and tighten two coupling nuts (3). Using 5/8-inch wrench, screw on and tighten two coupling nuts (4) on tee fitting (5). NOTE Follow-on Maintenance Action 1. Start engine and let air pressure TM 9-2320-209-10. Required: build. Refer to 2. Do leak test of air svstem. Refer to Part 1, para 1-5. 3. If working on truck M275A2, replace right rear splash guard. Tell direct support maintenance. 4. If working on truck M342A2, replace muffler and rear exhaust pipe. Refer to Part 1, para 5-3. END OF TASK 13-190