Pump key
Maintenance
5-8
Part 1073401_07
E 2021 Nordson Corporation
Cleaning the Tank
To avoid the problems that can occur when different hot melt materials are
mixed or when hot melt char forms in the tank, clean the tank when:
S changing to a different type of hot melt
S excessive char builds up inside the tank
NOTE: The tank cleaning procedures provided in this section require that an
appropriate flushing material be used. The flushing material should be
compatible with both the previous adhesive and the new adhesive, if
applicable.
To clean the tank when changing hot melt
1. 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 the
manufacturer of the flushing material.
4. While wearing the appropriate protective equipment, wipe any residual
hot 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 hoses and
applicators.
8. Return the melter to normal operation and pump a minimum of one tank
volume of fresh hot melt through the tank, hoses, and applicators.
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