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Farmall belly pump

J

John Fulton

Member

Farmall H belly pump has 3 hydraulic hose outlets, 2 on left and one on right. Do all 3 provide pressure at same time? What I am getting atis , is it possible to work a double-acting cylinder by hooking up 2 hoses?
 
Yes, no.
All three provide pressure at the same time and release pressure when you push the operating rod forward. Pressure up & gravity down.
For 2-way hydraulics you need an open center auxiliary valve.
There are many articles on this Farmall Board.
 
One of the 2 on the left side used to be a delayed lift for lifting the rear cultivators a bit later than the front ones. I don't know if that was on all belly pumps or just up to a certain year.
 
The one on the right and one on the left pressurize together. I believe one of the ports on the left pressurizes when the cylinder on other reaches the end of it's stroke. I don't know which is which (front or back) on the left.
 
(quoted from post at 20:42:18 11/29/12) One of the 2 on the left side used to be a delayed lift for lifting the rear cultivators a bit later than the front ones. I don't know if that was on all belly pumps or just up to a certain year.
Click to expand...

The rear port on the left side is intended for a delay lift, but it requires another attachment to make it function that way.

I've had those belly pumps apart. ALL three ports are connected to the same exact manifold on the belly pump.
 
If you were to take the pump apart you would readily see that all three ports will pressurize at the same time. The rear one has a separate ball check to hold load up and you have to push lever slightly farther forward to release it when lowering an imp, thus , a delayed drop, not delayed lift. You have to add a separate attachment for delayed lift.
 
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