Lincoln Electric Cross Country 300 Service Manual page 39

LINCOLN ELECTRIC
9. 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.
10. Use a low pressure compressed air to thoroughly blow the carbon, commutator stone and/or
sandpaper dust from the machine before operating.
11. Replace the brush holder bracket and perform the Case Cover Replacement Procedure.
Cross Country™ 300 Service Manual
34