Lincoln Electric Cross Country 300 Service Manual page 115

LINCOLN ELECTRIC
10. Using a 1/2" nutdriver, loosen the nut securing the bottom of the rectifier bridge to the power
module panel. See Figure F.63.
11. The output rectifier bridge can now be removed and replaced.
REPLACEMENT PROCEDURE
1. Carefully position new output rectifier bridge into the machine.
2. Using a 1/2" nutdriver, tighten the nut securing the bottom of the rectifier bridge to the power
module panel.
3. Using a 1/2" nutdriver, tighten the nut securing the top of the rectifier bridge to the power module
panel.
4. Using a 7/16" nutdriver and a 7/16" open-end wrench, attach the bolt, nut, lock washer and two flat
washers securing leads W4 and W5 to the bottom terminal of the rectifier bridge. See Wiring
Diagram.
5. Using a 7/16" nutdriver and a 7/16" open-end wrench, attach the bolt, nut, lock washer and two flat
washers securing leads W2 and W3 to the middle terminal of the rectifier bridge. See Wiring
Diagram.
6. Using a 7/16" nutdriver and a 7/16" open-end wrench, attach the bolt, nut, lock washer and two flat
washers securing leads W1 and W6 to the top terminal of the rectifier bridge. See Wiring Diagram.
7. Using a 1/2" nutdriver and a 1/2" open-end wrench, attach the bolt, nut, lock washer and two flat
washers securing leads B2-POS, B5-POS and POS-shunt to the positive terminal of the rectifier
bridge. See Wiring Diagram.
8. Using a 1/2" nutdriver and a 1/2" open-end wrench, attach the bolt, nut, lock washer and two flat
washers securing leads B1-NEG and B4-NEG to the negative terminal of the rectifier bridge. See
Wiring Diagram.
9. Perform the Case Cover Replacement Procedure.
10. Perform the Retest After Repair Procedure.
Cross Country™ 300 Service Manual
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