TM9-2320-361-10 2-26. OPERATION OF FUEL TANK TRUCK (Contd) (4) Attach ground wire (5) to suitable ground, and attach ground wire (14) to unit to be filled. (5) Turn automatic dump valve knob (3) and pump delivery line gate valve knob (13) left, to open position. (6) Move discharge valve control lever (11) (forward tank) or (12) (rear tank) back, to open position. (7) Unwind dispenser line and nozzle (6), and attach nozzle ground wire (17) to unit being serviced. WARNING Do not remove filler covers until ground wires have been attached to prevent static spark. Failure to do this may result in fire, causing injury or death to personnel. (8) Open filler cover (16), insert nozzle (15), and fill as needed. (9) After filling tank, remove nozzle (15) and ground wire (17), close filler cover (16), drain and secure dispenser line and nozzle (6). (10) Turn pump delivery line gate valve knob (13), and automatic dump valve knob (3) right, to closed position. (11) Move discharge valve’ control lever (11) or (12) forward, to closed position. 2-111