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This is how you replace the filter mat:
1. Prior to opening the housing, the sequence controller must be switched off and the
power plug must be disconnected and secured against unauthorized plugging in.
2. Loosen the six screws (hexagon socket wrench SW 2.5) at the housing rear wall.
3. Open the housing.
4. Loosen the 4 bolts of the power unit.
Figure 51: Power unit on the rear housing wall
5. Remove the power unit at the rear housing wall.
6. Pull out the filter mat from the rear wall, in the direction marked in the illustration.
Figure 52: Filter mat on the housing rear wall
7. Place the new filter mat (part no. see 13.3 Spare parts) in a manner that the finely
structured, dense side of the filter mat lays against the housings rear wall.
8. Using the four screws and the lock washer mount the power unit to the housings
rear wall.
9. Using the six screws attach the rear wall.
power unit
screw with lock
washer
power unit
filter mat
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