Page 20
MAINTENANCE
PROCEDURE FOR REPLACING VACUUM INTERRUPTERS
When a vacuum interrupter has reached a specified life (250,000 operations) or when it is
damaged, it is recommended that it be replaced in the following sequence:
“B”
(M8 BOLT)
Removing
1) Hold the insulating flange with one hand and
loosen nut "A" (below the flexible conductor)
with a wrench.
CONDUCTIVE
COLLAR
VACUUM
INTERRUPTER
UPPER
TERMINAL
2) Turn the insulating flange clockwise by hand
until it comes off the movable shaft of the
vacuum interrupter.
3) With the vacuum interrupter held in one hand,
loosen and remove bolt “B” (above the
interrupter) with a wrench.
FLEXIBLE
CONDUCTOR
CONDUCTIVE
NUT
“A”
(M8 NUT)
4) While pushing down on the insulating flange,
pull the vacuum interrupter forward to remove
it.
At this time, the conductive collar can also be
removed. Keep the collar for later use.
INSULATING
FLANGE
REMOVE
Fig. 9 Mounting of Vacuum Interrupter.
Phone: 800.894.0412 - Fax: 888.723.4773 - Web: www.clrwtr.com - Email: [email protected]
