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5.6
Emergency closure
Open the emergency closure
• Move the emergency closure lever <1> as far
as it will go in the direction of the arrow <B>, the
emergency closure is opened (operating state).
Close the emergency closure
• Move the emergency closure lever <1> as far
as it will go in the direction of the arrow <A>, the
emergency closure is closed. No water can run
through the backwater valve
Initial operation / configuration
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B
A
1
Ill. [20]
1
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