GE AKR-30 Series Maintenance Manual page 195

Breaker Racked In - Lever And Armature
Linkage Pin Not Engaged
Breaker Bei ng Racked Out ­
Lever Activates Armature Linkage
FIG. 1 7 - CLOSING S PRING I NTERLOCK
6.4 DISCONN ECT POSITION I NTER LOCK
The function of the D iscon nect Position I nterlock is to
block the RACKING SCREW cover open when the racking
mechanism is in the D I SCONN ECTED position. When the
cover is held open, the T R I P button is depressed. The
mechanism is held trip-free and there is no contact arm
movement wh en the closing spring is discharged by the
Closing Spring interlock.
The operation of this interlock is shown in Fig. 1 8 . A
crank, which is attached to the racking mechanism shaft, is
connected to the blocking plate through a link. As the shaft
turns, the blocking plate rotates; holding the cover open in
the DISCONN ECTE D position, but allowing it to close in
the TEST and CONN ECT E D positions .
FIG. 1 8
DISCON N ECT POSITION INTERLOCK
6.5 PADLOCKS
Provisions are made on all breakers to use padlocks to
prevent the breaker form being closed. For all breakers
except Type 8 or D the padlock shackle goes through the
TRI P button hole and out the slot in the side of the
escutcheon . For Type 8 or D breakers the padlock
shackle g oes through the TRI P button hole and out the
RACKING SCREW cover hole in the deep escutcheon. In
either case, the shackle holds the TRI P button in keeping
the m echanism trip-free.
1 7