If it's heating up it could be running too hot and that's something that can get a hydraulic system all outta sorts. So it's possible, but falling seems like it'd have more to do with the brakes, but I reckon it could also be rails, speedbuffers, or something with the inside panel too.

I ain't gonna climb in the thing to check some of it but I'll see if I can find any kinda outside maintenance panel just to take a looksee. Cause if I can even fix it a little better to be used I bet it'd help everybody here.