TM 9-2320-209-20-3-3 18-20. DISCHARGE VALVE PACKING REMOVAL AND REPLACEMENT (TRUCKS M49A1C AND M49A2C). WARNING Smoking, sparks or open flame is not allowed within 50 feet of fuel truck during this task. Fuel may burn, causing explosion, injury to personnel, and damage to equipment. TOOLS: Pliers 1 1/4-inch wrench Pick SUPPLIES: Discharge valve preformed packing PERSONNEL: One EQUIPMENT CONDITION: Truck parked, engine a. Removal. off, handbrake set. 1. Using pliers, take out and throw away cotter pin (1). 2. Slide lever (2) off stem (3). GO TO FRAME 2 18-73