Man I can see that !! That is exactly the problem area I had with my NIMCO loader valve on a MF2660. Long story shortened my dealer replaced it once, the replacement right out of the parts depot was also bad, AGCO parent of MF denied the concept of anything wrong, I found several on lots with the SAME disease, finally went to direct dealings with NIMCO and they admitted several bad ones got out into the field (including some I knew got into AGCO parts depots!) NIMCO sent me a repair kit which I put in myself.I would like to contact whoever makes the valve and see if they have a different spool that does away with the weird regen feature on the bucket dump
My NIMCO on the MF is normal first and regen second. That makes it a PITA to "dump hard" in cases where you want to force the bucket tip downward. Requires several tries (and that's when it is working right.)I wasnt aware that the TC had regen second.
Most modern tractors are ONLY regen....or at the least regen is first.
Regen is the preffered way to dump when using the bucket. Because it keeps air out of the system and controls dumping heavy buckets better.
Are you using curl function at all? IS this a diverter tied to curl function? I assume the loader is off and and you are just using loader valve for blower lift and chute rotate? Want to ask rather than just assume?
I would honestly just add whatever valve you need, or even control it with a 3rd function or a diverter rather than trying to revamp the OEM valve.