TM 9-2320-209-10-1 FRAME 2 1. 2. 3. Turn gravity delivery line suction valve knob (1) left, to open position. Place either 400 gallon compartment valve lever or 600 gallon compartment valve lever (2) in open position, (left lever controls 400 gallon front tank, right lever controls 600 gallon rear tank). CAUTION Always empty front tank compartment first when letting out water, on any kind of terrain or road condition. This will keep the load properly distributed (even) for vehicle operation. Press discharge nozzle operating lever (3) to let water flow as needed. GO TO FRAME 3 4-193