Troubleshooting & repair, Scr output bridge replacement, Caution – Lincoln Electric IDEALARC DC 1000 SVM123-A User Manual
Page 92
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TROUBLESHOOTING & REPAIR
REMOVAL OF INDIVIDUAL
SCR HEAT SINK ASSEMBLIES
1.
Using a 9/16” wrench, remove two
nuts, flat washers, and lock wash-
ers from the SCR assembly mount-
ing studs. See Figure F.24.
2.
Using a 5/16 (8mm) nut driver or
flat head screw driver, remove
snubber ground wire attachment.
The snubber assembly can now be
removed. Replace if necessary.
3.
Carefully remove the positive buss
bar from the heat sink in question.
It may be necessary to remove the
buss bar completely.
4.
Carefully slide the SCR assembly
from the mounting studs.
Replacement will be made with a
new SCR assembly.
DO NOT DISASSEMBLE THE SCR
FROM THE HEAT SINK. MACHINE
DAMAGE MAY RESULT. REPLACE
THE SCR ONLY AS AN ASSEMBLY.
_______________________________________
SCR OUTPUT BRIDGE REPLACEMENT
IDEALARC DC-1000
FIGURE F.24 - Individual SCR Assembly Heat Sink Removal
CAUTION
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