JD 6400(not mine)PTO stalling under load.Will run PTO without equipment attached but won't power equipment.Same guy has a Kuhn made Gehl tedder which is out of time.I'm thinking jumped some teeth in the bevel gears.
The PTO worked unhooked from implement.Wouldn't turn under load from my understanding.The man decided to let the dealer fix it.
I'll pass on info about the tedder.
Thanks.