Festo MPAC-VI, Руководство пользователя

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6 Cleaning and maintenance
46 Festo – MPAC-VI-EN – 2017-12a – English
After cleaning, rinse the valve terminal with plenty of clear water, so that the cleaning agent cannot
dry on it. Otherwise, after the valve terminal is cleaned several times, there may be sufficient con­
centration of the cleaner to harm the surface of the valve terminal.
6.3 Maintaining the valve terminal
6.3.1 Cleaning or replacing the silencer
Caution
Fire risk due to highly inflammable cleaning materials
Observe the safety regulations for handling highly inflammable cleaning materials.
Caution
Health hazard
For cleaning, do not use chlorinated hydrocarbons (CHCs), such as trichloroethylene
(TCE), but petrol or kerosene instead.
Note
Avoiding malfunctions
If you remove the exhaust air at the valve terminal via silencers:
Contamination of the silencers can cause an increase in pressure in exhaust ducts (3)
and (5).
Clean the silencers when these are discoloured yellow/black or a dark colour or
replace them.
You can then guarantee excellent functioning of the silencers and avoid malfunctioning
of the valves.
1. Loosen and remove the silencers.
2. Clean the silencers with petrol or kerosene or replace them with new ones.
3. Screw the silencers back into the corresponding ports.
Tightening torques:
– Ports (3) and (5): 5 Nm (±10 %)
– Ports (82/84) and (L): 2 Nm (±10 %)
6.3.2 Replacing the valve or cover plate
Dismounting
Loosen the screws from the cover by using a box spanner (
è
Fig. 6.1,
1
). Take the cover off the
manifold sub-base.
Use a screwdriver with a narrow blade to loosen the mounting screws of the valve or cover plate and
remove it from the manifold sub-base (
è
Fig. 6.1,
2
).