Lincoln Electric Cross Country 300 Service Manual page 106

LINCOLN ELECTRIC
REPLACEMENT PROCEDURE
1. Carefully position new chopper module PC board onto the power module panel.
2. Using a 3/8" Nutdriver, attach the four screws securing the chopper module PC board to the power
module panel.
3. Apply a thin coating of Penetrox heat sink compound to terminals B1, B2, B3, B4, B5 and B6 of the
chopper module PC board.
4. Using a 7/16" nutdriver, attach the bolt, lock washer and flat washer securing the W10 lead to
terminal B6 of the chopper module PC board. See Wiring Diagram.
5. Using a 7/16" nutdriver, attach the bolt, lock washer and flat washer securing the POS lead to
terminal B5 of the chopper module PC board. See Wiring Diagram.
6. Using a 7/16" nutdriver, attach the bolt, lock washer and flat washer securing the NEG lead to
terminal B4 of the chopper module PC board. See Wiring Diagram.
7. Using a 7/16" nutdriver, attach the bolt, lock washer and flat washer securing leads W9 and 15 to
terminal B3 of the chopper module PC board. See Wiring Diagram.
8. Using a 7/16" nutdriver, attach the bolt, lock washer and flat washer securing the POS lead and
leads 13 and 13A to terminal B2 of the chopper module PC board. See Wiring Diagram.
9. Using a 7/16" nutdriver, attach the bolt, lock washer and flat washer securing the NEG lead and lead
14 to terminal B1 of the chopper module PC board. See Wiring Diagram.
10. Connect the quick-connects attaching leads 23 and 25 to terminals B7 and B8 of the chopper
module board. See Wiring Diagram.
11. Perform the Case Cover Replacement Procedure.
12. Perform the Retest After Repair Procedure.
Cross Country™ 300 Service Manual
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