belly pump bleed down (Farmall SM)

biggerred · Nov 30, 2014

I think I already know the answer to this question but just in case,,,, I just had this pump out of a tractor I'm restoring. Cleaned out the trash, changed the input seal etc. Got it back in and filled it up and ran it on a newly assembled system. Tractor has a 3pt with 2 cylinders and an abundance of air in the system. In short it bleeds down. It lifts up quickly and completely but slowly goes down. Is it air or is it bypassing back through the pump?

Ellis Kinney · Nov 30, 2014

I have three M Farmalls with 3 point hitches. Funny thing! They all bleed down if there is no weight on them. If I add the carry all or the grader blade they stay put. Don't know why but it doesn't bother me. Try adding an implement before you get discouraged. Ellis

biggerred · Nov 30, 2014

It will lock in place when fully extended, but it bleeds down otherwise. I believe the cylinders to be good.

pete 23 · Nov 30, 2014

Leaking past the check balls in pump. First try pulling the lift lever back just a little bit to make darn sure it isn't resting on the release pins over the balls . Reason they stay up when raised all the way is more pressure holding the balls on their seats.

belly pump bleed down (Farmall SM)

biggerred

Member

Ellis Kinney

Well-known Member

biggerred

Member

pete 23

Well-known Member

Similar threads