Troubleshooting & repair – Lincoln Electric PRO-CUT 55 SVM140-A User Manual
Page 105
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TROUBLESHOOTING & REPAIR
F-68
F-68
PRO-CUT 55
INPUT RECTIFIER BRIDGE REMOVAL AND REPLACEMENT (continued)
7. Carefully remove the input rectifier bridge.
8. When installing a new input rectifier apply a
thin coating of Penetrox A-13 Heat Sink
Compound (Lincoln E2529) to the mating
surfaces. Torque the mounting cap screws
and nuts to 44 in-lbs.
9. Reconnect the 10 leads to the correct ter-
minals and torque the phillips head
screws to 31 in-lbs.
10. Apply Essex DC-4-8 Insulating Com-
pound to all six screw heads and termi-
nals. The heavy input lead terminals
should be against the rectifier terminals.
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