Meler PS20, Instruction Manual, Page: 76 / 100

FOCKE MELER GLUING SOLUTIONS
6-12
MAINTENANCE
Air dryer filter maintenance
The filtering elements prior to the air dryer device on the melting equipment
are equipped with a filter saturation indicator, which indicates the best time to
change the filter cartrtidge:
- Green colour: Low level of cartridge contamination.
- Red colour: The cartridge is contaminated. Replace immediately,
otherwise equipment performance cannot be guaranteed.
We recommend installing new cartridges once a year, regardless of the
indicator reading (differential pressure).
Follow these steps to change the cartridge:
1. Close the air valve.
2. Release the drainage hose from the reservoir, if connected.
3. Slowly turn the knurled screw clockwise. This will purge the air from
the filter.
4. Push the reservoir towards the head of the filter.
5. Slowly turn the reservoir clockwise as far as possible (1/8 of a turn)
and remove it, pulling down.
6. Remove the cartridge and replace it with a new one (do not touch the
filter screen with your hands).
7. Mount the reservoir, following these instructions in reverse order.
8. Pressurize the filter, opening the by-pass valve slowly.
Warning : It is necessary to keep the power connected to the unit in order to
keep the air dryer system operational. The system may operate even with cold
adhesive, in order to keep the internal environment moisture-free.
0.01µm
5µm
Automatic purge Automatic purge