Lincoln Electric POWER MIG SVM170-A Service Manual page 78

F-38
CONTROL PC BOARD REMOVAL AND REPLACEMENT (continued)
FIGURE F.10 — WIRING HARNESS
AND MOLEX PLUG LOCATIONS.
TROUBLESHOOTING AND REPAIR
J6
J5
J3
J8
J1
J4
J2
POWER MIG 255C
REMOVAL AND REPLACEMENT
PROCEDURE
1. Disconnect main input power the
machine.
2. Open the side panels and remove the
tool tray using a 5/16 in. nutdriver.
3. Disconnect all wiring harness plugs and
Molex plugs connected to the control
board. See Figure F.10.
F-38