When using the brake, if I push the brake all the way down, the mower still rolls. It does absolutely nothing. I know the brake pedal doubles as the clutch. When pushing up to 80% down, it's the clutch. The last 20% is the brake. I took apart the mower today. I tried to follow all the pulleys and anything mechanical the pedal is hooked up to and I can't quite figure out how it works. Where I was looking was under the battery in the engine compartment. That is where I think the "magic" of the brake works. Can anyone explain to me how the brake works, and how to troubleshoot why it doesn't stop at all when I press it down. If I'm going on a downward slope and press the brake all the way down, the mower will go until I'm at the bottom of the hill or I tranny slam it.