Power Steering as small hydraulics?

looknlearn · Feb 9, 2011

I got a Power King tractor (similar in size to a farmall cub) and would like hydraulics to lift the 3 point. ( capacity aprox. 500lbs supposedly) Would it work to use a PS pump as the pump? I have one in the scrap bin and was wondering if it would work and how to hook it up.
Thanks

zzvyb6 · Feb 9, 2011

A car pump is usually about 1.7 to 2.3 gal per minute flow rate. Truck pumps are 2.5 to 3.5 gal per minute. Pressures can go up to 1500 psi. Its worth a try if the pump is still any good, has the reservoir build it and you can get it mounted.

Craig Clayton · Feb 9, 2011

I built a look alike Power King years ago and I used PS from a car 1.0GPM @ 1000psi.
The pump had too little volume ie slow action but at 1000 psi it had power for its size.

Craig Clayton

mmurphy · Feb 10, 2011

Yes they will work. Some will not have a great amount of pressure but, will work for GT's.
Hook them up same way you would a regular hydraulic pump. Pressure line to valves (open center/tandem). Return back to reservoir. May need a bigger bottle for fluid.
Some guys with GT loaders will use pumps from GM, Ford, or Dodge trucks. Some I heard will give aprox 4 to 5 gpm.

looknlearn · Feb 10, 2011

Thanks guys,

I know at the PickandPull junkyard there are a few motor homes and at least one old city truck. I might see if I can get the pump off one of those.

I am a real novice in hydraulics. Is there a simple book describing hydraulics with diagrams around that any of you would recommend?

mmurphy, what is a GT? Not to familiar with all these abbreviations. Thanks

Soundguy · Feb 10, 2011

i think it will be fine for that size a machine.

remember an 8n has a 2.85 gpm pump that operates at 1500-1700 psi and can lift 800-1000#

make your 3pt linkage correctly.. and even a 1 gpm pump at 1200 psi will get you a heavy load... remember..the cyl displacement is going to be small.. thus 1gpm is FINE

soundguy

mmurphy · Feb 10, 2011

GT is garden tractor. I know to many acronyms.
Some of the guys posted tutorial sites just recently, so do a searh or glaance through a few posts or maybe some one may have time to find one!