If your K-9 II dryer has been losing power, sounding uneven, or sitting in storage for a while, it might be time to check the motor brushes! In this first part of my K-9 II maintenance series, I’ll explain what motor brushes are, why they wear out, and how they affect your dryer’s performance. We’ll go over the signs that it’s time to service your motor, what replacement brushes look like, and a quick overview of the tools you’ll need before we start taking anything apart. In this video: What mo