Brush Holder & Spring
- Check for smooth movement of brush in brush holder. If movement is sluggish, inspect holder for distortion and/or contamination. Clean, repair or replace as necessary.
- Inspect brush spring for wear, damage or other abnormal conditions. Using a spring tension gauge, check tension of brush spring. Standard tension is 3.53 Lbs. (1.6 Kg). Minimum tension is 2.2 Lbs. (1.0 Kg). If less than minimum, replace brush spring.