Lincoln Electric Fleet 400 Service Manual page 26

LINCOLN ELECTRIC
SEATING BRUSHES:
11. If brushes have been replaced, repositioned or are not making full contact with the slip rings, it may
be necessary to re-seat them. This can be done by placing a strip of 180 grit sandpaper between the
slip rings and the brushes, with the abrasive side against the brushes. Pull the sandpaper strip
around the circumference of the slip rings in the direction of rotor rotation only. Repeat this
procedure until the surface of each brush is in full contact with its matching slip ring.
12. Use a low pressure compressed air to thoroughly blow the carbon and/or sandpaper dust from the
machine before operating.
13. Perform the Case Cover Replacement Procedure.
Fleet™ 400 Service Manual
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