Troubleshooting and repair – Lincoln Electric POWER MIG SVM170-A User Manual
Page 78
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F-38
TROUBLESHOOTING AND REPAIR
F-38
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.
FIGURE F.10 — WIRING HARNESS
AND MOLEX PLUG LOCATIONS.
J1
J2
J3
J4
J5
J6
J8
CONTROL PC BOARD REMOVAL AND REPLACEMENT (continued)
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