TM 9-2320-209-20-3-2 13-27. AIR RESERVOIRS REMOVAL AND REPLACEMENT (TRUCKS M49A1C AND M49A2C). TOOLS: 13/16-inch wrench 9/16-inch wrench 5/8-inch wrench 9/16-inch socket wrench, 3/8-inch drive 9/16-inch wrench (2) 3/8-inch drive hinged handle 3/4-inch wrench 15-inch adjustable wrench 7/8-inch wrench SUPPLIES: Anti-seize tape, MIL-T-27730A PERSONNEL: TWO EQUIPMENT CONDITION: Truck parked, engine off, handbrake set. a. Preliminary Procedures. (1) Vent air system pressure. Refer to para 13-20. (2) Remove spare wheel. Refer to TM 9-2320-209-10. (3) Remove delivery pump drive shaft. Refer to Part 3, para 18-59. b. Removal. FRAME 1 1. Using 13/16-inch wrench, unscrew two coupling nuts (1). 2. Take off tube (2) with two coupling nuts (1). GO TO FRAME 2 13-191