old and tired
Veteran Member
It's position control, just piss poor position control. Easy test to see if it has the jerky hitch is to mount something (heavier the better), and slow and steady, raise the 3 point hitch... again, constant moving, lifting slowly. If it jumps up and down, you got it.....Not sure how to identify it, though...
{edit} side note; dealer's response to the jerky hitch was you bought the "economical" tractor, that's the valve you get. At the time I looked up the cost of the standard L's valve and the cost of the Grand L valve - The Grand L valve was actually $5 cheaper at the time...