home built PS update

Corona Boy · Feb 2, 2013

I am now the proud owner of a Prince flow control valve. Pump pressure to inlet. One outlet to loader valves, one outlet to steering motor. NOTHING works now. I am getting low flow out of the steering port. The pressure line from pump gets hot from deadheading into flow control valve. What am I not doing correctly? My wife is disturbed that I spent grocery money on a solution that isn't the solution.Yet.

Anonymous-0 · Feb 2, 2013

Well I spect all of us have done that atv one time or another. Do you have any way you could look at a working unit and take pictures. Can't help you on recipies for flow control valves but I bet you need to boil them a looong time.

jm. · Feb 2, 2013

Did directions come with the valve. You say flow control , should serve the same purpose as a priority steering valve I guess. Anyway the purpose is to make sure you always have power to the steering then to lift. Am I right in assuming that is why you want the valve in the circuit. Just guessing sounds to me like you have the lines mixed up. Maybe you misread the directions to what is the inlet. Could you post a photo of lines and valve?

John B. · Feb 2, 2013

Is the flow control valve open?

Are your loader valves "open center valves"?

Are all the hoses hooked up to the correct ports?
These are just a few things I can think of.

Hate to see you go hungry....

Corona Boy · Feb 2, 2013

Loader valves are open center. Without flow control valve loader works great. Put flow control valve in circuit to split flow between loader circuit and steering circuit. No directions came with control valve. I have checked and rechecked my connections to make sure the flow is going in the right places. What do i hafta do to get flow thru the control valve?

pete 23 · Feb 2, 2013

The way I understand your question, is that with lines disconnected coming out of flow control valve you have no flow out of port going to load and small amt to steering. That does not add up. Pump would blow up. Even with the internal relief valve in flow control that oil would be coming out at high pressure someplace as you have only one line coming from pump. What number prince valve are you using. Some of them will shut off flow to aux side if flow out priority is blocked. What valve are you using to steer. You would have to draw up your circuit so we could get a handle on just how you are going about this whole job.

Corona Boy · Feb 2, 2013

With more checking I have discovered that I get no flow thru the steering motor. I get flow thru loader valves (open center). The flow control valve is trying to balance flows. 0 flow to steering must equal 0 flow to loader? Now what?

Corona Boy · Feb 2, 2013

Prince control valve C-454

greygoat · Feb 2, 2013

There are about a half dozen, or more, makes of
flow control valves, and dozens of models, or
variations, for each brand!
Did you chose a specific manufacturer, of good
repute, and carefully choose a model, knowing the
gallons per minute of your system, and working
pressure? Or did you randomly find one at a farm
store , or auction, and hope that it will fulfill
your needs?
There are many choices for priority and excess
flow, from 90% priority,10% excess, to 10%/90%
and everything in between, and you can also get
adjustable ones, where you can "Lock in" the
desired requirements after you set them.(set Screw)
Of course, before you choose the model "Right for
you", you did research the manufacturers specs
for the power steering valve,..didn"t you?

OLarry from MD · Feb 2, 2013

Is the steering valve closed center?

rrlund · Feb 2, 2013

Got me scratching my head on this. I put a CharLynn on a JD 60 one time. I just cut the steel pressure line from the pump,hooked a hose to one end,ran it to the steering valve,then ran a hose out the other side back to the other end of the steel line that I cut. The oil flowed through it all the time. I can see where a splitter valve would dilute the pressure. I think that thing needs to be thrown out and the line just has to flow through the steering valve THEN to the loader valve.

D Slater · Feb 2, 2013

Wondering if you have a sequence valve? Has to build so much pressure on the inlet before going to the other port. May have a adjustment range, but the low range could be higher than the system pressure. Think there should be more numbers other than the casting #, maybe RD-????.

armand tatro · Feb 2, 2013

What kind and model tractor do you have? Best thing you can do is get power steering pump from old car or pickup and that gives you a dedicated power steering pump. Armand

EX 450 Owner · Feb 2, 2013

That C454 number looks like a casting number you need to find out what the part number on that valve it could be any number of types of control valve depending on the spool installed in the valve body casting.
Usually the flow valve used when a common pump is used to supply both the power steering and loader functions is a priority flow valve such as the priority divider similar to the Prince RD-400 series valve

You should be able to find the information you need at

"www.princehyd.com/"

pete 23 · Feb 2, 2013

The C-454 is a casting number and the catalog on line lists 15 different valves using that same casting.

OLarry from MD · Feb 2, 2013

That will put high preasure on the low preasure seal in the valve.

Corona Boy · Feb 2, 2013

Grey Goat

Thanks for reminding me that I am a 6 year old and not an adult male. I appreciate the opportunity to relive my 1st grade in school.

To everyone else

Thanks for all the help. I think I have got it working now. For some reason the steering motor was bound up. Hydraulic lock, mechanical, or whatever. Took the motor off, pulled the rear cover off and made sure the input shaft turned and put it back together. I have it plumbed straight to pump, bypassing the loader, and it works. Tomorrow I will try tieing the loader back in.

Anonymous-0 · Feb 3, 2013

Why don't you do like graygoat told you and make sure everything is correct and compatable and then tell us what parts you have and how they're connected instead of not paying attention like a 5 yr. old boy who's still in pre school

JD Seller · Feb 3, 2013

I read this and wondered if the flow divider/control valve you are using will work correctly even with the steering motor freed up. The reason I am thinking you will still have an issue is that you are using the flow from the front driven loader pump now, I think. That pump is going to be pumping a lot more GPM than a steering system would ever use. So if you have the flow valve sending equal amounts of oil to the loader and the steering valve the steering valve is not made for that much flow. I know that you can get flow valves that will split the oil flow into different rates per each side but they are a lot more costly than the standard equal splitting type. Do you know how your flow valve splits the rates???

Just a thought. I hope yours works the way you want it too. It seems like your on a tight budget and really can't afford to be trial an error designing this very much. That makes it much harder to do this type of thing.

home built PS update

Corona Boy

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jm.

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