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F-89

F-89

TROUBLESHOOTING & REPAIR

POWER MODULE/OUTPUT RECTIFIER BRIDGE ASSEMBLY

REMOVAL AND REPLACEMENT (continued)

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REPLACEMENT PROCEDURE

1.Connect leads #68A and #69A at their bolted connections beneath the bottom bracket (if removed).

2.Place the assembly back into the machine.

3.Connect the positive output lead. Feed it through the toroid assembly.

4.Install the four carriage bolts, flat washers, lock washers, and nuts that hold the bottom bracket to the machine base.

5.Pull the flat negative output strap through the top bracket and attach it.

6.Feed the stator “W” leads through the top bracket and attach them to the terminals on the plastic insulator bracket.

7.Connect plugs J12 and J13 to the power module PC board (both sides).

8.Connect the power module capacitor leads. Torque the capacitor nuts to 50-60 inch- pounds.

9.Replace any cable ties cut during removal.

10.Install the output panel.

11.Connect the ground wire to the output panel assembly, if removed.

12.Attach the front left and right side panels and the front control panel.

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COMMANDER 300

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Lincoln Electric SVM145-B service manual Replacement Procedure