Festo MPA Series - Maintenance of the MPA-S valve terminal

5. Maintenance and conversion
5−6
Festo P.BE−MPA−EN en 0910d
5.3 Maintenance of the MPA−S valve terminal
5.3.1 Cleaning the flat plate silencer
Caution
Dirt in the flat plate silencer can cause an increase in
pressure in exhaust channels (3) and (5).
· Clean the flat plate silencer insert if it is yellow/black or
a dark colour, or replace it by a new insert.
· Do not use TRI for cleaning, but rather petrol or paraffin.
· Observe the safety regulations for handling easily
inflammable cleaning agents.
In this way you can ensure that the flat plate silencer
functions correctly and that the valves operate correctly.
Proceed as follows:
1. Loosen the 6 fastening screws of the flat plate silencer
and remove it from the basis components.
2. Clean the flat plate silencer with petrol or paraffin.
3. Check the seal between the basis component and the flat
plate silencer for damage. Replace the seal if it is
damaged.
4. Fasten the flat plate silencer only with the original screws.
Tighten the screws in diagonally opposite sequence
to1.0Nm (± 10%).