Lincoln Electric 11694 Service Manual page 70

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POWER WAVE S350
POWER FACTOR CORRECTION CONTROL BOARD
REMOVAL AND REPLACEMENT PROCEDURE
Figure F.28 – Power factor correction control board and mounting nuts location
POWER FACTOR
CORRECTION
CONTROL BOARD
REMOVAL PROCEDURE
1. Remove the input power to the Power Wave S350 machine.
2. Perform the Case Cover Removal and DC Link Capacitor
Discharge Procedure.
3. Locate the power factor correction control board. See Figure F.28.
4. Using a 3/8" nutdriver, remove the three nuts securing the power
factor correction control board to the machine. See Figure F.28.
5. Carefully slide the power factor correction control board off of the
mounting studs.
6. Carefully label and disconnect plugs J23, J24, J25, J26 and J27
from the power factor correction control board. See Figure F.29.
See Wiring Diagram.
7. The power factor correction control board can now be removed
and replaced.
TROUBLESHOOTING AND REPAIR
MOUNTING NUTS (3)
(continued)
64