GE AKR-30 Series Maintenance Manual page 210

SECTION 7-Breaker Maintenance (Cont.)
7 . 1 4. 1 B U FFER ADJ USTME NT
Referring to !=ig. 40, with the breaker c losed and the
mechanism not reset, a . 005 " c learance must exist be­
tween the end p late assembly and the buffer nut as shown.
Th is dimension is factory set. It can be reset by t ightening
the buffer nut. Hold the nut with a screwdriver and t ig hten
using a socket on the bolt head opposite the nut. When
tighten ing this assem b ly don't over compress the neo­
prene washers by overt ig htening the assem bly. These
washers absorb the breaker opening shock.
Referring to Fig. 41 , with the breaker open, a .040 "
max i m u m c l earance can exist between either of the end
p l ate assem b l i es and the buffer bolt heads as shown. If
a larger c learance exists, c lose it u p by unscrewing the
buffer assembly i nvolved.
Fig. 42 shows a buffer assembly prior to being installed
in a breaker. The dimensions given establish the nu mber of
spacers that are used.
7. 1 5 TRIP LATCH ADJ USTMENT
The reset position of the trip latch is set by the adjust­
ment screw shown in Fig. 43. The adj ustment is correct if
three and one-half turns of the adj ustment screw causes a
closed breaker to trip. If this check is made, the screw m ust
then be set back, or unscrewed, t t\ ree and one- half turns.
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FIG. 43 - TRIP LATCH ADJ USTMENT
NEOPRENE WAS H E RS
FIG. 42 B U FF E R ASSEMBL
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