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TROUBLESHOOTING & REPAIR | ||
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SCR OUTPUT BRIDGE REPLACEMENT
FIGURE F.24 - Individual SCR Assembly Heat Sink Removal
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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.
CAUTION
DO NOT DISASSEMBLE THE SCR FROM THE HEAT SINK. MACHINE DAMAGE MAY RESULT. REPLACE THE SCR ONLY AS AN ASSEMBLY.
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