TM 9-2320-209-20-3-3 18-28. REAR DISCHARGE VALVE CABLE REMOVAL AND REPLACEMENT (TRUCK M49A1C). TOOLS: 1/2-inch wrench 5/8-inch wrench (2) Leather gloves Pliers SUPPLIES: None PERSONNEL: TWO EQUIPMENT CONDITION: Truck parked, engine off, handbrake set, wheels chocked. WARNING Smoking, sparks or open flame are not allowed within 50 feet of fuel truck during this task. Fuel may burn, causing explosion, injury to personnel, and damage to equipment. Always wear protective gloves when handling cable. Do not let cable slip through hands. Rusty or broken wires can cause injury. a. Removal. FRAME 1 1. Open truck rear compartment doors. 2. Using 1/2-inch wrench, unscrew and take off nut (1). Take cable (2) out of special bolt (3). GO TO FRAME 2 18-116