Meler Micron + 10, Инструкция по эксплуатации, Страница: 77 / 120

MA-5162-ENG PISTON ADHESIVE MELTER MAINTENANCE
5-3
Access to pneumatic unit
To access the unit for more exhaustive machine maintenance, it will be
necessary to remove the electrical cabinet from its place so it can be handled
more comfortably and accessibly. To do this, slacken the 1/4 turn screw that
keeps the electrical cabinet in position (screw A) and slide it along the guides.
To carry out this operation it is not necessary to open the electrical cabinet
door.
Maintenance of the filters
‘’ series melter equipment is equipped with a 50 mesh pump filter.
The filter prevents impurities and burnt adhesive remains from being pushed
out from the tank by the pump.
The adhesive flows from the inside to the outside of the filter, with impurities
being trapped inside it.
The drain valve is included in the filter cap.
There is also a filter in the tank’s inlet valve. This filter performs a first-step
filtration, preventing impurities resulting from burning in the tank and other
impurities that may enter from the outside from passing through.
The filters can be cleaned or replaced with new ones.
No rule exists for determining when to change the filters. Several factors
influence this decision:
• the type and purity of the adhesives used.
• the adhesive work temperatures.
• adhesive consumption in relation to the time it spends in the tank.
• changes in the type of adhesive used.
In any case, we recommend that the filters are checked and cleaned at least
every 1000 hours of operation (melter turned on).
Warning: Always use protective gloves and goggles. Risk of burns.
Changing the pump filter
To change the filter, it should be borne in mind that the filter and purge valve
are the same assembly:
1. Depressurise the system.
2. To remove the whole filter, unscrew the assembly’s hexagonal plug
using a 27 mm socket driver and remove it.
3. Depending on the amount of dirt inside the cartridge, clean it or throw
it away, following the applicable waste regulations.
purge zone