TM 9-2320-209-20-3-2 13-26. AIR RESERVOIRS REMOVAL AND REPLACEMENT (TRUCKS AND M342A2). TOOLS: 13/16-inch wrench 5/8-inch wrench 7/16-inch socket wrench SUPPLIES: None b. PERSONNEL: TW O 3/4-inch wrench 6-inch pipe wrench M275A1, M275A2, EQUIPMENT CONDITION: Truck parked, engine off, handbrake set. a. Preliminary Procedures. (1) Vent air system pressure. Refer to para 13-20. (2) If working on truck M342A2, remove muffler and rear exhaust Refer to Part 1, para 5-3. (3) If working on truck M275A2, remove right rear splash guard. direct support maintenance. Removal. pipe. Tell 1. Using 5/8-inch wrench, unscrew and take off two coupling nuts (1). 2. Using 13/16-inch wrench, unscrew and take off two coupling nuts (2). Take off tube (3) with two coupling nuts. GO TO FRAME 2 13-183