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Manual Operations
Motor-wound spring operating mechanism FK3-07
for outdoor circuit breaker
26.04.2011
© ALSTOM
If Then
The closing spring is charged. • Turn the motor limit switch lever
71.76 approx. 90° clockwise by
pulling it with the blocking device
of the motor limit switch 71.75.
• The position reached corresponds
to the position of the closing spring
70.25 when discharged.
• Fix the blocking device on the
holder 71.77 of the motor limit
switch 70.24.
Motor limit switch
blocking
71.77 70.24 71.76
Illustration 29
71.75
Illustration 30
Illustration 31
71.77 Holder 71.75 Blocking device of motor limit switch
71.76 Motor limit switch lever 70.24 Motor limit switch
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