Pump keyMaintenance5-6Part 1032059B 2003 Nordson CorporationManual 41-DURABLUE-MA-02Cleaning the TankTo avoid the problems that can occur when different hot melt materials aremixed or when hot melt char forms in the tank, clean the tank when: changing to a different type of hot melt excessive char builds up inside the tankNOTE: The tank cleaning procedures provided in this section require thatan appropriate flushing material be used. The flushing material should becompatible with both the previous adhesive and the new adhesive, ifapplicable.To clean the tank when changing hot melt1. Operate the melter normally until the tank is empty.2. Press the Pump key to stop the pump.3. Allow the melter to heat or cool to the temperature recommended by themanufacturer of the flushing material.4. While wearing the appropriate protective equipment, wipe any residualhot melt from the inside of the tank.5. Add the appropriate type and quantity of flushing material to the tank.6. Press the Pump key to start the pump.7. Pump all of the flushing material from the tank and through the hosesand guns.8. Return the melter to normal operation and pump a minimum of one tankvolume of fresh hot melt through the tank, hoses, and guns.
