Lincoln Electric V250-S Welder User Manual


 
F-54
TROUBLESHOOTING & REPAIR
F-54
PROCEDURE
1. Remove input power to the V250-S.
2. Perform
Filter Capacitor Discharge
Procedure
detailed in Maintenance
Section.
3. Locate the input rectifier and the
leads connected to it. See Figure
F.16.
4. Identify and mark the leads connect-
ed to the rectifier terminals.
5. With the Phillips head screwdriver
remove the eight leads connected to
the rectifier terminals.
6. Using the 3/16” Allen wrench and
7/16” box wrench remove the two
cap head screws, washers and nuts
mounting the input rectifier bridge to
the center panel assembly.
INPUT RECTIFIER BRIDGE REMOVAL AND REPLACEMENT (continued)
INVERTEC V250-S
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#207
#207A
#209
A
B
C
CAP HEAD 
MOUNTING 
SCREWS
Figure F.16 Input Rectifier Lead Locations