FixVault

Bench Testing: Brushes

  1. Check for cracks and minimum length of .18-.22" (4.5-5.5 mm). If damaged or worn, replace brushes. Brushes should slide smoothly in holders. Install new springs when replacing brushes. Solder brush wire.
  2. New brush protrusion should be .61" (15.5 mm) for Prelude, and .41" (10.5 mm) for all other models.