Lincoln Electric POWER WAVE C300 Service Manual page 105

F-86
FeedHead BOARD REMOVAL AND REPLACEMENT PROCEDURE
PROCEDURE
1. Disconnect the input power to the POWER
WAVE® C300 machine.
2. To gain access to the FeedHead Board see the
Case Cover
Capacitor Discharge Procedure.
the top case cover.
3. Locate the FeedHead Board and using the 3/8
inch nutdriver remove the two nuts securing
the FeedHead Board. See Figure F.32.
4. Carefully slide the FeedHead Board up and out
over the mounting studs.
5. Carefully turn the FeedHead Board over to the
component side of the board.
6. Remove the molex type plugs from the board.
Label locations for reassembly.
TROUBLESHOOTING AND REPAIR
(continued)
FIGURE F.32 – FeedHead BOARD LOCATION
Removal and DC Link
Remove
POWER WAVE® C300
F E E DHE A D BO A RD
7. If a spool gun board is plugged into the
FeedHead Board carefully remove it.
8. Install the new board and replace the molex
type plugs previously removed.
9. Check the settings of the dip switch making
sure they are the same as the old board.
10. Install the spool gun board and associated
plugs.
11. Carefully slide the new FeedHead Board into
place being careful not to damage any compo-
nents or plugs.
12. Replace the two nuts previously removed.
13. Replace case top.
Removal and DC Link Capacitor Discharge
Procedure.
F-86
See the Case Cover