2006 Arctic Cat ATVs factory service and repair manual, Page 417Get this manual

2006 Arctic Cat ATVs factory service and repair manual, Page 417

4Inspect the brush leads for cracks, wear, or frayingIf any of these conditions exist, replace with new brushes and brush
an entire revolutionIf the metal strip vibrates at any point on the armaturethe armature is shorted and must be 8Inspect
the commutator end of the armature for buildup in the groovesCarefully remove any buildup by undercutting using thinly ground
hacksaw bladeDo not undercut any deeper than the original groove which can be seen by looking at the end of the commutator9Using
caliper, measure the undercutMaxim groove must be 0.2 mm (0.008 ut in 12Inspect the ground brushes to make sure they are
properly groundedUse multimeter and the following procedure ASet the selector to the OHMS position BTouch the black tester
lead to ground brushCTouch the red tester lead to the brush holder assembly1 NOTE: If no resistance is indicated, check the
ground connection for tightness and for cleanlinessIf there is still no meter indication, replace the brush assembly Buildup
in the grooves must be removed to prevent any chance of an electrical arc between individual sections of the commutator 10Inspect