Vane Hydraulic pump

Deereman1 · Jul 26, 2015

Trying to get the 3pt hitch working on my ford jubilee that I just bought. I've tried a lot of things and now looking at bleeding the vane pump. How do I do this on the Vane? Do I remove the pressure line(which is the bigger line im guessing)? or is there another way of doing this. There is knob on the front of the pump, should this be open or closed and would it have anything to do with the 3pt hitch not working?
Any help would be greatly appreciated.

Dean · Jul 26, 2015

The knob is a flow control valve. Set to max.

Loosening the pressure line (smaller line) should allow any air to escape.

Dean

old · Jul 26, 2015

Go back to your other post I told you what you needed to know about that valve. Turn it out clock wise all the way for max oil flow. Plus yes it should have a vane pump on it at least if it is still factory

Deereman1 · Jul 26, 2015

Ok thanks, Ill open the knob all the way and loosen the small hose. i'll just turn over the tractor or start it on low idle?....

souNdguy · Jul 27, 2015

personally, I would not take the pressure line off. that plumbing may be hard to seal up and you might be sorry.

I'd open flow control full, i'd loosen but not completely remove the pipe plug under the seat in the odd option hyd cover.

I'd then take a rubber tipped blow gun and introduce some pressure to the dipstick port and see if she didn't immediately pickup oil... have the lift control in the up position and be ready to thread that pipe plug in.. perhaps lay a rag over it during the test as it will make some oil there.

Deereman1 · Jul 27, 2015

Is the pipe plug under the seat the screwdriver type fat plug with the spring in it?

souNdguy · Jul 27, 2015

Nope.. Under the right front of the seat is an odd small 4x4 cover, it has a pipe plug in it.

chuck bergstrom · Jul 27, 2015

I used to put air pressure in the dipstick hole and hold for a bit;that would usually
take care of it. Chuck

NoNewParts · Jul 28, 2015

all good suggestions....if they fail.....
there is a pipe plug on the right side even with the floorboard.
back by the rear floorboard bracket.
(not the acorn nut...straight down below it....)
have a pan, take that plug out, start the tractor at the lowest possible idle.
If the vane pump works at all, it'll start pumping out that hole.
(lowest possible point...it's a siphon thing..)
turn the tractor off and quick now, put the plug back in and restart it.

You could plumb that hole with a hose up into the fill port to not make a mess and remove air bubbles.
But, I like a pan and a little mess so it doesn't have to pump uphill...quicker results.

RAYWILSON · Jul 29, 2015

A couple things to add to the discussion:

My Jubilee still wears a vane pump too! The knob on the front of my pump reduces or increases flow, but does not stop it. Reading Ford's literature indicates mine is operating normally.

Second, if you keep losing prime, very likely the seal in the vane pump (or piston pump) is knackered. I've got a piston pump apart for rebuild for my 851 - and the wobble shaft has got nasty grooves from seal contact over the last 57 years. So a replacement seal is just part of the solution....I bought a wobble shaft as well. I mention all this because I didn't want the dreaded "...my hydraulics are losing prime..." woes. Of course, there are other ways to lose prime, but those will be addressed as well.

Ray
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Vane Hydraulic pump

Deereman1

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Dean

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old

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Deereman1

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souNdguy

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Deereman1

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souNdguy

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chuck bergstrom

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NoNewParts

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RAYWILSON

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