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TROUBLESHOOTING AND REPAIRF-26
LN-7 GMA WIRE FEEDER
REPAIR PROCEDURE
1. Remove the cover from the control box
by removing the four 5/16 in. screws
from the top and side of the unit.
2. Unplug the transformer wire connector
from the control PC board. See Figure
F.6.
3. Remove the two phillips head screws
that attach the transformer to the case
of the control box. Remove the old
transformer from the wire feeder.
4. Install the new transformer in the wire
feeder and attach it to the case with two
phillips head screws.
5. Plug the transformer wire connector
into the socket on the control PC board.
6. Reinstall the cover on the control box
using four hex head screws.
TRIGGER TRANSFORMER REPLACEMENT
(continued)
FIGURE F.6 – TRIGGER TRANSFORMER REPLACEMENT.
TRIGGER
TRANSFORMER