JD 4720: can I speed up the loader & bucket?

[kennyd]

You know lately I've been thinking something is wrong with my 4720 since it seems to dump slow when there isn't much weight in the bucket -

That's the key right there...not enough weight in the bucket. You guys are pushing the joystick to far to the right and hitting the "regen" mode, and it does not work well a little weight in the bucket.

Read the first post here: 3 position valve-vs-4 position valve - TractorByNet.com


Since the OP has not replied back, we don't know if he is complaining about all the functions or just the dump.