Lincoln Electric POWER MIG SVM167-A Service Manual page 70

F-34
TROUBLESHOOTING AND REPAIR
OUTPUT DIODE BRIDGE RECTIFIER REPLACEMENT (CONTINUED)
PROCEDURE
1. Using a 3/8" nutdriver, remove the left side of the
case wraparound cover.
2. Locate the output diode bridge rectifier. See
Figure F.12.
3. Using a 1/2" nutdriver label and remove the four
thick black leads connected to the rectifier.
NOTE: Be sure to label lead terminals also.
Take note of washer placement upon removal.
4. Label and remove leads 104A and 104B. See
Wiring Diagram.
5. Using a 5/16" nutdriver locate and remove the
four bolts mounting the rectifier bracket to the
bottom of the machine.
accessed easily from the bottom of the machine.
See Figure F.13.
6. Carefully manipulate the output diode bridge
rectifier and the mounting bracket out of the left
side of the machine.
FIGURE F.12. - OUTPUT DIODE BRIDGE RECTIFIER LOCATION
OUTPUT DIODE
BRIDGE
RECTIFIER
7. Using a 1/2" nutdriver remove the three bolts
8. Mount the new rectifier to the mounting bracket
9. Carefully manipulate the rectifier and mounting
10. Mount the unit to the bottom of the machine
11. Reconnect leads 104A and 104B previously
These bolts can be
12. Reconnect the four thick black leads previously
13. Replace the left side of the case wraparound
POWER MIG® 215
mounting the bracket to the rectifier. The rectifi-
er is now ready for repair or replacement. See
Figure F.13.
using the three 1/2" bolts.
bracket as a one back into the machine to its
proper location.
using the four 5/16" mounting bolts previously
removed.
removed.
labeled and removed using a 1/2" nutdriver.
cover.
F-34