Bench Testing: Brushes
- Check brushes for cracks. Measure brush length. Standard measurement for Samurai and Swift is .43" (11.0 mm). Minimum length for Samurai is .20" (5 mm) and for Swift .18" (4.5 mm). For Sidekick, standard measurement is .63" (16.0 mm). Minimum length is .08" (2.0 mm). Ensure brushes slide smoothly in holders.
- If damaged or worn, replace brushes and brush holder. Install NEW springs when replacing brushes.