Georg Fischer DIASTAR SIX Manuel D'utilisation D'origine page 38

3. Open housing nut with a strap wrench
Information
On opening: unlatching of the friction lock is clearly audible
4. Move the valve into the „closed" position with the control medium to realign diaphragm
in the next step
5. Turn actuator in 90° intervals to the desired position
6. Realign diaphragm and compression piece. After this tighten the diaphragm handtight
(clockwise) and then turn the diaphragm back (counter clockwise) by min. 90 ° to the
right position
For assembly: Diaphragm tabs must be positioned between the narrow guiding bars
of the inner housing
7. Put valve in the „open" position again with the control medium (FC, DA)
8. Position actuator on the valve body and tighten housing nut handtight
9. Move the valve into the „closed" position with the control medium
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