mitsubishi D2650fd

[Dave M7040]

I bought the tractor exactly the way you described with aftermarket pump attached to front, it runs the power steering. So I would have to piggyback 2 small pumps off 1 drive shaft. That's the reason I was trying to get original pump or find someone who sells the seals.

I think rather than adding a second pump piggy backed unto the existing power steering pump is to install one new larger pump to both serve the power steering and your FEL.

What most tractor hydraulic systems which have a main hydraulic pump feeding different important functions like steering, is a priority flow valve which provides a fix amount of the hydraulic pump's output and dedicates it to the power steering.

These briority flow valves are available in a wide range of sizes.
This is a description of how they operate:

Description:
Priority Flow Control Valve
This is an adjustable, pressure compensated, bypass type priority flow control. The flow from the “3” port is pressure compensated which means it will provide a constant flow rate despite variations in system or load pressures. Flow into port “1” greater than the valves set flow rate is diverted out the bypass port “ 2”. If the bypass line carries the fluid to a second load function the flow from port “3” has priority. This means as long as input flow is equal to or higher than valve flow setting, flow from port “3” will remain constant.

Kubota's use these valves, Chinese tractors use these valves.

Dave M7040

 

[Big Ben]

Thank you. How big a pump would I need for 32 hp compact to run FEL 3ph and power steering?

 

[Dave M7040]

Thank you. How big a pump would I need for 32 hp compact to run FEL 3ph and power steering?

A Koyker 160 model FEL is rated for tractors where you are right in the middle of the recommended horsepower range.

They recommend a pump with 8 gpm with hydraulic cylinders of 1-3/4" diameter.

The max pressure is around 2,200 psi.

For your tractor, based upon the fact that it has power steering, approx 10 gpm is my suggestion.

Prince Hydraulics makes a priority flow divider pump with a priority flow for say steering and excess flow for other purposes.

My suggestion is that you talk to either Prince or one of their distributors and explain what you need and how best to get the parts required.

Explain the pump is to be driven at engine rpm which is ????? perhaps 2200 rpm.

Priority flow of approx 2.5 gpm and excess flow of approx 8 gpm. Pressure of 2,200 psi

Dave7040

 

[PILOON]

Piloon how big of a pump did you use for FEL?

It has been so long that I have to guess, but I'd think probably 5GPM, if it helps it has only 2 mounting ears and the pressure is -6 hose, intake -8.
Factory pump is 3.4 GPM (per my parts manual)