Depress locking tab on mounting pin, Troubleshooting and repair, Control board replacement (continued) – Lincoln Electric POWER MIG SVM157-A User Manual

Page 62

TROUBLESHOOTING AND REPAIR

F-28

POWER MIG 200

Retur

CONTROL BOARD REPLACEMENT (continued)

PROCEDURE

1. Remove power to the machine.

2. Using a 5/16” nutdriver, remove the three

screws securing the tool tray.

3. Locate the control board.

4. Disconnect all associated plugs and leads

connected to the control board.

5. Depress the retaining pins on the sides of the

four nylon mounts to release the control
board. See Figure F.8.

6. Carefully remove the control board.

7. Mount the new board to the nylon mounting

pins.

8. Reconnect any plugs or leads previously

removed.

9. Replace the tool tray previously removed.

FIGURE F.8. - CONTROL BOARD MOUNTING PINS

DEPRESS
LOCKING TAB ON
MOUNTING PIN