Cleaning/Replacing The Surface Silencer - Festo CPV-VI Series Manual

5. Maintenance and conversion
5.1

Cleaning/replacing the surface silencer

Festo P.BE-CPV-EN en 0005e
Caution
Dirt in the surface silencer can cause an increase in pres-
sure in the exhaust channel.
S Clean the silencer if it is yellow/black or a dark colour or
replace it by a new one.
In this way you can ensure that the surface silencer func-
tions correctly and that the valves operate correctly.
Proceed as follows
1. Loosen and remove the screws in the fastening frame.
2. Remove the silencer from the end plate.
3. Replace the silencer or clean it in benzine or petroleum.
Do not use TRI for cleaning.
4. Place the cleaned or the new silencer and the fastening
frame on the end plate.
5. Fasten the silencer only with the original screws
(see table).
Fastening screws of the silencer
as per DIN 912, strength class 12.9
Valve terminal Screw
CPV10 M 2.5 x 8
CPV14
M 3 x 10
Tightening torque
1.0 Nm ± 10%
1.7 Nm ± 10%
5-3