Meler PS20, Instruction Manual, Page: 67 / 100

MAINTENANCE
6-3
MA-5130-GBR PS20 NON STOP DRUM UNLOADER INHIBITION MANUAL
2. Clean the remains of hot-melt adhesive on the inside of the tank.
Warning: Use appropriate protective equipment for high temperatures.
3. Add the appropriate type and quantity of the new adhesive, wait for it
to melt and pump at least one full tank through the system (hoses and
applicators).
Cleaning burnt adhesive
1. Empty the tank directly (see the section ‘Emptying the tank’) to prevent
the burnt material from passing through the pump circuit.
2. Clean the adhesive remains and burnt material inside the tank. Do not
use sharp objects that might damage the inside coating.
Warning: Use appropriate protective equipment for high temperatures.
3. Add the appropriate type and quantity of adhesive and wait for it to
melt.
4. Pump a minimum of one tank through any distributor output.
5. Refill the tank with adhesive, wait for it to melt and continue working
as usual.
Warning: Whenever you handle the filter or any other element subject to
pressure, you must always perform a system depressurization first (see the
corresponding section)
Emptying the tank
During normal maintenance activities, it is recommended, and sometimes
necessary to empty the tank directly, without passing the adhesive through the
pump system.
To do so, follow these instructions:
1. Maintain the tank at operating temperature.
2. Remove the side shroud cap.
3. Lower the discharge ramp located next to the tank and put an
appropriate container in place.
4. Unscrew the emptying plug and allow the adhesive to flow freely into
the container.