GE AKR-30 Series Maintenance Manual page 94

Low-voltage power circuit breakers
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SECTION 5-Breaker Operation (Cont.)
T h e r e i s a ratchet asse m b ly attached t o t h e c a m s h aft
exte n s i o n . This ratchet is normally d ri ve n by the b reaker's
gear motor. A rol l e r on this ratchet e n g ages with a prop
when the c l o s i n g s p r i n g i s f u l l y charged and d riven over
1 2 .
center, see F i g .
This holds the closi ng spring i n a
charged c o n d i t i o n .
FIG . 1 3 - MAN UAL O P E RATION OF CLOSING SOLENOID
1 4
FIG . 1 2 - R O L L E R ENGAG E D WITH CLOSING PROP
Rotate the camshaft u s i n g the m ai ntena nce h a n d l e u n t i l
the ratchet assem b l y roller e ng ages with the prop.
d rive the rol l e r agai nst the prop w i t h u nd o force . T h e
b r e a k e r can now be closed by removi n g the prop from the
rol l e r . This i s d o n e b y m a n u al l y activati ng the closing
solenoid armat u re b y push i n g t h e s o l e n o i d armatu re i n t o
1 3 .
its w i n d i n g s . See Fig .
Do n o t

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