SLOW OPERATION FOR MAINTENANCE PURPOSES
136 OI 248 (EN) REV6 /REV3
Operating State after Slow Closing
Removing the Slow Operation Device
• Turn the hexagon nut (22) counterclockwise until enough
pressure is removed from the hook (19) that the slow operation
device (15) can be removed.
Executing a Slow Opening Operation
The spring mechanism is prepared for manual operations.
Checking the Operating State of the Circuit Breaker and the
Spring Mechanism
Tools Required
1)
Only required for spring mechanisms equipped with an under-
voltage release and no integrated locking device.
Position of Position Indicator
Spring position indicator shows clo-
sing spring is uncharged or charged
Breaker position indicator is
in closed position,
opening spring is charged
Position of Position Indicator
Spring position indicator shows clo-
sing spring is uncharged or charged
Breaker position indicator is
in closed position,
opening spring is charged
7 Locking plate for manual release
1)
10 Locking device for undervoltage release
1)
11 Locking device for the closing latch
15 Slow operation device
16 Closing spring release device
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