Why won't the blade stop within 6 seconds after releasing the trigger?

The most likely causes are motor brushes that are not seated or are lightly sticking, a motor brake overheated from use of a defective or wrong size blade, a loose arbor bolt, or cracked/damaged brushes. Inspect, clean, or replace the brushes and ensure a recommended blade is being used. If the problem persists, contact a Sears Service Center. (Page 24)