FEL bucket curls overnight

[4lane]

When I park the tractor, I lower the bucket to the ground with the bucket in the neutral position (bottom of bucket flat on ground). Lately I've noticed that overnight or over the course of a couple days, if I haven't used it, the bucket will curl all the way to full curl position. It doesn't seem like there is any pressure to curl when the machine is off, but is there some seal/control valve leaking that would pull the bucket to curl position?

 

[oldnslo]

4lane,
If your loader geometry is like mine The main boom is drifting down creating a load on the curl cylinders causing the bucket to curl fully.

 

[4lane]

4lane,
If your loader geometry is like mine The main boom is drifting down creating a load on the curl cylinders causing the bucket to curl fully.

Thanks oldnslo. I wouldn't have thought the boom drifting would push the bucket from neutral to curl. Seems like an odd directional force, but I can see it happening. Thanks again!