sometime back I posted when the pto was engaged the lift arms would come up and the engine would labor. Disengage pto and engine would stop laboring but arms would remain in the raised position. Seems the control valve had popped out of the forks. Drained the fluid & pulled the pto shaft, a hand in the inspection port and a couple of fingers in thru the drain plug opening & snapped it back in less than a minute. All is now working as it should.