SLOW OPERATION FOR MAINTENANCE PURPOSES
REV7 /REV3 OI 250 (EN) 139 / 146
146
Locking the Closing Latch if the Closing Spring is Charged
• The closing latch may be actuated unintentionally when
manipulations are being performed on the spring mechanism.
• Performing manipulations on the spring mechanism when the
closing spring is charged and the closing latch is not locked poses
a risk of injury.
• Insert the locking device (11) for the closing latch (12) and fasten
it to the shaft of the manual opening release (9).
Removing the Safety Plate
• Remove the safety plate (13).
Prevent inadvertent manual actuation of the spring mecha-
nism by locking the closing latch.
9 Manual opening release 11 Locking device for the closing latch
12 Closing latch
13 Safety plate 14 Self-locking bolt
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