TM 9-2320-209-20-3-3 18-23. GATE VALVE PACKING REMOVAL AND REPLACEMENT (TRUCKS M49A1C AND M49A2C). 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. TOOLS: 1 9/16-inch wrench Pick SUPPLIES: Gate valve preformed packing PERSONNEL: One EQUIPMENT CONDITION: Truck parked, engine off, handbrake set. a. Removal. FRAME 1 1. Using 9/16-inch wrench, unscrew and take off nut (1). 2. Lift handwheel (2) off stem (3). 3. Using 1 9/16-inch wrench, unscrew and take off nut (4). 4. Using pick, take gland (5), upper packing (6) and lower packing (7) out of bonnet (8). Throw away packings. END OF TASK 18-92