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5.
Maintenance
Guide rods
Safety pins
Prop
Closing springs
Fig. 7. Installation of safety pin
5.2-Arc Quencher Removal and
Inspection
The arc quenchers should be inspected at the regular inspection period. If item 1 is eroded to .125 of an inch from
original conture or item 2 is cracked, Fig. 8, the arc quencher
should be replaced.
5.2.1-Removal and Replacement
Referring to Fig. 8:
a. Be sure breaker is open.
b. Loosen nuts (4) and remove the two slotted head jack
screws.
c. Remove two hex head bolts (5) that mount channelshaped retaining bar to side support (6).
d. Remove channel-shaped retaining bar.
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