Lincoln Electric LN-15 WIRE FEEDER SVM166-A Service Manual page 66

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TROUBLESHOOTING AND REPAIR
REMOVAL AND REPLACEMENT PROCEDURE (Continued)
Figure F.9 - FEED HEAD CONTROL BOARD LOCATION
REMOVAL PROCEDURE
1. Remove input power to the LN-15.
2. Perform the Cover and Spindle
Mount Removal Procedure.
3. Locate the Feed head Control Board.
and plugs J81, J82, J83, J84, J85, J86
and J88. See Figure F.9 & See Figure
F.10.
4. Remove the seven plugs from the
board taking note of placement for
reassembly.
5. Using the 3/8" wrench remove the four
nuts holding the board in place.
6. Carefully remove the Feed head
Control Board.
FEED HEAD CONTROL BOARD
LN-15
FEEDHEAD CONTROL BOARD
REPLACEMENT PROCEDURE
1. Set the new Feed head Control Board
on the four mounting studs.
2. Secure with the four nuts previously
removed.
3. Replace the seven plugs previously
removed. See Figure F.10.
4. Replace the Cover and Spindle mount.
F-28