Lincoln Electric SVM146-A service manual Troubleshooting & Repair

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F-56 F-56

TROUBLESHOOTING & REPAIR

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 Dow Corning 738 Insulating Com- pound to all six screw heads and termi- nals. The heavy input lead terminals should be against the rectifier terminals.

11.Assemble case wrap-around cover.

PRO-CUT 80