Replacement - GE AK-2A-15 User Maintenance Manual

GEI-50299 Power Circuit Breakers Types AK-2 -15 and AK-2/3-25
Should the mechanism continue to function
improperly after the proper latch engagement
has been set and the corrective measures listed
in the "Trouble Shooting" chart carried out, it is
generally recommended that no attempt be made
to repair the mechanism interior but that a re­
placement mechanism assembly be obtained from
the factory.

REPLACEMENT

1. If the breaker is electrically operated, remove
the front escutcheon by taking four screws
from flange. If the breaker is a drawout type,
two s mall round head screws must also be
removed from the bottom edge of the escutch­
eon. (For removal of front escutcheon from
Figure 6. (8024516) Cut Away Model of Manually Operated AK-2 B reaker
1.
Arc Quencher Muffler
2 .
Ceramic Side Plates
3. Steel P lates
4. Fixed Centers in Mechanism
5. Latch Roller
6. Escutcheon
7 . Trip Latch
14
manually operated breakers, see procedure
described below.)
Remove arc quenchers (See "Arc Quencher").
2 .
Disconnect the two insulated connecting links
3.
between the mechanism and the contacts as in
step 2 of the procedure for "Separation of
F ront and Back Frames".
Remove the two elastic stop nuts, which fasten
4.
the upper extensions of mechanism frame to
studs connecting with rear frame.
5. Remove four screws which fasten the bottom
of the mechanis m frame to the horizontal
cross member of the front frame.
8. Handle Return Spring
9. Overload Device
10.
Series Coil of Overload Device
11.
Trip Arm of Overload Device
12 .
Trip Paddle
13.
Movable Contact Pivot Support
14.
Crossbar
15. Movable Contact Pivot
16. Contact Wipe Adjust-
ment Pin
17. Movable Contact
18. Moulded Compound Bar
19. Steel Back Plate
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