Component Testing: Brushes
- Check for cracks and minimum brush length of .18-.22" (4.5-5.5 mm). Replace brushes if damaged or worn. Brushes should slide smoothly in holders. Install new springs when replacing brushes. Solder brush wire.
- New brush exposed length should be .413" (10.5 mm). Old brush minimum exposed length not be less than .059" (1.5 mm).