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SECTION 3. BREAKER PREPARATION
The following steps are performed to prepare the breaker for
installation of the new conversion kit. Unless otherwise
indicated, the procedure is the same for LA-3000 Gold, LA-
4000 Gold, RL-3200 and RL-4000 breakers.
WARNING:
Before installing the conversion kit, turn the
breaker OFF, disconnect it from all voltage sources, and
discharge the closing springs.
1.
Open the breaker and remove it from its enclosure.
Carefully place the breaker on a suitable work surface so
that the rear of the breaker is initially accessible.
2.
If the conversion kit is to be installed on a fused breaker
(LAF series), remove the fuse structure from the upper
(line) studs to allow easier access to the load studs.
Additional work may be required to install kit into fused
breaker.
3.
Loosen the three Allen-head screws securing each of the
primary disconnects to the line (upper) and load (lower)
studs and remove the primary disconnects.
4.
Remove the wires from the original current sensors (CTs),
if present, and slide off the CTs.
5.
Remove manual charging handle. Remove the two bolts
holding the escutcheon to the breaker frame and lift off the
escutcheon.
6.
Remove old flux shifter and mounting bracket. Also
remove old trip unit and its mounting bracket along with its
wire harness.
Figure 1: Primary disconnects removed from bottom studs
Allen-head Screws
