SLOW OPERATION FOR MAINTENANCE PURPOSES
REV7 /REV3 OI 250 (EN) 137 / 146
146
If Then
Spring mechanism has no under-
voltage release
Manual releases are normally
locked.
If this is not the case:
• Loosen the M6 screws.
• Slide manual release locking
device (7) in the direction of the
arrow until manual releases are
locked.
• Retighten the M6 screws.
Spring mechanism has undervol-
tage release and integrated lok-
king device
Spring mechanism has undervol-
tage release but no locking de-
vice
The manual release locking de-
vice (7) is normally not installed in
this model.
• Slide manual release locking
device (7) in the direction of the
arrow until manual releases are
locked.
• Tighten the M6 screws.
Manual release locking device
7 Manual release locking device 9 Manual opening release
8 Manual closing release
9
7
8
M6
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