TM 9-2320-209-20-3-2 13-33. AIR COMPRESSOR DRIVE BELT AND PULLEY REMOVAL AND REPLACEMENT. TOOLS: 9/16-inch socket wrench Pulley puller 1 1/8-inch socket wrench 24-inch straight edge Air compressor pulley 6-inch ruler wrench, pn 10935288 SUPPLIES: Masking tape, PPP-T-42C PERSONNEL: One EQUIPMENT CONDITION: Truck parked, engine off, handbrake set. a. Preliminary Procedures. (1) Remove brush guard. Refer to Part 1, para 6-4. (2) Remove radiator. Refer to Part 1, para 6-3. 13-251