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TROUBLESHOOTING & REPAIR
F-27 F-27
LN-9 Wire Feeder
T2 TRANSFORMER TEST (continued)
FIGURE F.3 – “PROTECTION CIRCUIT TROUBLESHOOTING” NAMEPLATE
PROTECTION CIRCUIT
TROUBLESHOOTING NAMEPLATE
TEST PROCEDURE
1. Remove input power to the LN-9 wire feed-
er.
2. Using the phillips head screw driver, remove
the screws holding the left side cover
assembly.
3. Lift the right side cover assembly.
4. Using the Phillips head screw driver,
remove the two screws from the "protection
circuit troubleshooting" name plate.
Remove the nameplate as far as the lead
length will allow. See Figure F.3.