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Manual operations
FK 3-1 / FK 3-06 motor-wound spring
operating mechanism
21.5.2003
© ALSTOM
48.020.181E/2
11/26
Disable undervolt-
age release
• If the spring operating mechanism is equipped with undervoltage releases
and slow closing or slow opening is necessary, disable the undervoltage
release.
If Action
Undervoltage release without dis-
abling device
• Insert hooked end of disabling de-
vice 71.20 and pull magnet out to
the stop.
• Then gently tighten the nut by hand.
71.20 Undervoltage release dis-
abling device
Undervoltage release with integral
disabling device
• Turn disabling lever from service
position to disabled position.
Disabling lever in service position
Disabling lever in disabled position
71.20
Nut
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