Troubleshooting and repair – Lincoln Electric POWER MIG 255 SVM144-B User Manual

Page 77

POWER MIG 255

F-39

Retur

TROUBLESHOOTING AND REPAIR

CONTROL PC BOARD

REMOVAL AND REPLACEMENT PROCEDURE (Continued)

7. When re-installing the control PC board

carefully secure board to mounting
standoffs.

8. Install all plug connectors previously

removed from the control PC board.

9. Install the tool tray and close the side

panels.

4. Ensure a static electricity grounding

strap is used before handling the con-
trol PC boards.

5. Carefully remove the control PC board

from the mounting standoffs.

6. Lift the control PC board straight up and

out from the machine.

FIGURE F.11 — CONTROL BOARD MOUNTING.

PC CONTROL

BOARD

TOOL

TRAY

NOTE: TOP COVER SHOWN

REMOVED FOR CLARITY.

MOUNTING

STANDOFF