Lincoln Electric V250-S service manual Troubleshooting & Repair

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F-55 TROUBLESHOOTING & REPAIR F-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 Dow Corning 340 Heat Sink Compound (Lincoln E1868) to the mating surfaces. Torque the mounting cap screws and nuts to 44 IN-LBS.

9.Reconnect the eight leads to the cor- rect terminals and torque the phillips head screws to 31 IN-LBS.

INVERTEC V250-S