TM 9-2320-209-20-3-2 FRAME 3 1. Working at front of air reservoir (1), put on retaining strap (2). 2. Using two 9/16-inch wrenches, screw on and tighten two capscrews (3) and locknuts (4). CAUTION Do not tighten coupling nut (5) too much. Screw on and 13/16-inch wrench, tighten nut 1/8 turn. 3. Using 13/16-inch wrench, screw on and tighten coupling nut NOTE Follow-on Maintenance Action Required: 1. Start engine and let air pressure build. Refer TM 9-2320-209-10. 2. Do air system leak test. Refer to Part 1, para 3. Replace spare tire. Refer to TM 9-2320-209-10. finger tighten coupling nut onto fitting, then using (5). to 1-5. END OF TASK 13-228