TM 9-2320-209-20-3-3 AND TOOLS: M50A3). Cross-tip screwdriver (Phillips type) 18-57. DISCHARGE PIPE REMOVAL AND REPLACEMENT (TRUCKS M50A1, M50A2, 9/16-inch open end wrench 9/16-inch socket Universal joint 10-inch extension 5/8-inch open end wrench 11/16-inch socket Ratchet 11/16-inch open end wrench 7/16-inch socket 7/16-inch open end wrench 7/8-inch open end wrench SUPPLIES: Discharge valve gasket (2) PERSONNEL: TWO EQUIPMENT CONDITION: Truck parked, engine off, handbrake set. a. Preliminary Procedure. Drain all water from holding compartments. Refer to TM 9-2320-209-10. 18-289