Troubleshooting & repair – Lincoln Electric INVERTEC V250-S User Manual
Page 83
F-51
TROUBLESHOOTING & REPAIR
F-51
7. Once the top of the bracket assem-
bly is disengaged from the top center
panel the bracket assembly can be
removed from the bottom of the case
by sliding the bracket assembly
towards the front of the machine.
The locking tab on the bottom of the
bracket will have to be lifted slightly
to enable the assembly to slide
freely towards the front.
8. With the bracket assembly out of the
machine the filter capacitors can be
removed by loosening the capacitor
clamps and sliding the filter capaci-
tors out of the assembly.
Note: Before removing the capaci-
tors precisely mark where the capac-
itors are positioned in the clamp.
This is important so the new capaci-
tor terminals will align with the holes
in the power board. Also mark
polarity configuration for
reassembly purposes.
9. Install the new capacitors taking note
of position in the clamp and also
polarity location.
10. Using the slot head screwdriver
tighten the clamps.
11. Install the heatsink/power board
bracket assembly (with new capaci-
tors installed) into the
machine by first positioning the
bottom of the bracket into the slots
in the case bottom and sliding the
bracket assembly towards the rear
of the machine.
12. Carefully position the top of the
heatsink/power board bracket
assembly into the top center panel
and slide the panel towards the
rear of the machine while holding
the heatsink/power board mounting
bracket in place.
13. Using the 5/16’ nut-driver replace
the two screws at the top rear of
the case back. See Figure F.15.
14. Using the 5/16” nut-driver replace
the two screws at the top front of
the case front panel. See Figure
F.15.
15. Perform
Replacement Procedure in this
section.
FILTER CAPACITOR REMOVAL AND REPLACEMENT (continued)
INVERTEC V250-S