Lincoln Electric POWER WAVE S500 Service Manual page 150

F-102
REMOVAL AND REPLACEMENT PROCEDURE (continued)
REPLACEMENT PROCEDURE
1. Position the new Chopper Board and heat sink
assembly onto the four mounting posts.
NOTE: The bottom of the Chopper Board
Assembly will have to be positioned into
place first.
2. Using the four nuts previously removed, secure
the new Chopper Board onto the mounting
posts.
3. Connect Plugs J41 and J42 into the new
Chopper Board. See Wiring Diagram.
4. Connect the thermostat leads 409 and 410.
See Wiring Diagram.
5. Connect leads 901, 901C and 206A to terminal
B1. Torque the bolts to between 50 to 60 inch
pounds. See the Wiring Diagram.
TROUBLESHOOTING AND REPAIR
CHOPPER BOARD
POWER WAVE
6. Connect leads B2 and 207 to terminal B2.
Torque the bolts to between 50 to 60 inch
pounds. See the Wiring Diagram.
7. Connect the six output choke leads previously
removed from terminals BL1, BL2, BL3, BL4,
BL5 and BL6. Torque the bolts to between 50
to 60 inch pounds. See the Wiring Diagram.
8. Perform the Case Cover Replacement
Procedure.
® S500
F-102