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F-53

TROUBLESHOOTING & REPAIR

F-53

MAIN TRANSFORMER AND OUTPUT CHOKE

REMOVAL AND REPLACEMENT (continued)

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11.Unplug and label leads X5, X6, X7, X8, and X9. These leads have connectors near the trans- former which can be disconnected.

12.Disconnect the output choke lead from the posi- tive capacitor bank buss using two 1/2 in. open end wrenches.

13.Remove the other output choke lead from the positive output terminal using a 1/2 in. wrench.

13.Remove all cable ties, wire mounts, and any har- ness type that could get in the way during trans- former removal using wire cutters and screw driver.

14.Remove the four nuts and washers mounting the transformer to the floor of the machine using a 1/2 in. wrench.

15.Carefully remove the main transformer and choke assembly.

16.Reassemble the main transformer and choke assembly in the reverse order.

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POWER MIG 255

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Lincoln Electric SVM144-B service manual Toc