Just bought a 446 today. Onan engine and J46 deck. Engine runs good but this being my first experience with one of these machines I do have a few questions... the brake doesn’t work at all. You can press it all day long and it has no effect. I suspect the band lining is wore out but I don’t know. The other issue is that the deck raises on its own when you start the engine and drops when you shut it off. Third is the deck needs new bearings. Any help on an applicable part number or I just need to break it down and see what’s in there? I’ve replaced plenty of bearings before but the deck raising on its own stumps me a little. I’m assuming it’s a valve issue but I don’t know for sure. Mainly, being new here, I’m looking for guidance. And for what I can get I’ll be really appreciative!