Help for plumbing a prince rd500 priority valve with loader valve and steering valve

   / Help for plumbing a prince rd500 priority valve with loader valve and steering valve #1  

Yoseph

Bronze Member
Joined
Jun 25, 2010
Messages
58
Location
Canada
Tractor
Massey Ferguson 1010 Hydro - Cub Cadet 1782 Hydro Diesel - John Deere 155C
I recently booth a prince priority valve rd500, and need help how to connect the return from steering pump, i want to make it available for other componants if there is no steering, how i could do that
do i connect it with T to the inlet loader valve or any other issues, or T it after le loader valve ??? thanks in advance, any help would be appreciated.
Apologize for my poor english
Yoseph from Canada
Quebec
 
   / Help for plumbing a prince rd500 priority valve with loader valve and steering valve #2  
Just connect/tee the steering valve out to any OUT/return hose.
 
   / Help for plumbing a prince rd500 priority valve with loader valve and steering valve
  • Thread Starter
#3  
thanks J_J, but should i tee it after the power beyond loader valve and the tree point hitch, because i dont want the return steering fluid going to the tank, i want it to be used for other componants, what do you think about my plan
thanks a lot J_J
 
   / Help for plumbing a prince rd500 priority valve with loader valve and steering valve #4  
   / Help for plumbing a prince rd500 priority valve with loader valve and steering valve
  • Thread Starter
#5  
yes the priority fluid is sent to the steering after that it goes my wood spliter, loader and hydraulic winch
 
Last edited:
   / Help for plumbing a prince rd500 priority valve with loader valve and steering valve #6  
Where was the steering fluid going before you installed the priority valve.

It should go to tank.

The intent of the priority valve is to provide a dedicated flow to something important like a steering unit, and you can adjust the Priority flow. This could be the total pump flow of only a small part of the flow.

That part of the flow not used by the Priority port is sent through the Excess port to tank or to be used by another hyd circuit. Eventually, all flow goes to tank/reservoir.
 
   / Help for plumbing a prince rd500 priority valve with loader valve and steering valve
  • Thread Starter
#7  
the steering is a different system by itself pulley pump to the crankshaft, but du to the poor flow the steering system doesn't work well and the oil freezing reducing the viscosity also there is air bubles in the oil, then i decided to install PV to use the main tractor pump, but i dont want to lose more flow bypassing into the steering, do i install the divider after the loader valve because i need all the flow for the loader, what do you think about that Mr J_ J thank you very much
 
   / Help for plumbing a prince rd500 priority valve with loader valve and steering valve #8  
You can't install after the loader as the loader might/probably kill all steering, and steering should have priority.

I an not understanding why the steering pump has poor flow, as it was designed for that purpose.

Did you trouble shoot the steering system for flow and pressure?

If oil freezes, that means that you have water in the system.

If you have air bubbles, that means that you probably have a suction leak.

Fix the bubble thing, and get some new fluid for the steering if separate tank. You may solve your problem.

Again, the divider is designed to separate the flow into a priority circuit for things most important. Steering.

The excess flow can be used for other things.

If you use the attachment pump for the steering by using the divider, you take away the designed speed of operation from the loader and 3pt capability
 
   / Help for plumbing a prince rd500 priority valve with loader valve and steering valve
  • Thread Starter
#9  
it's a car or a truck steering pump, powered as i described befor, the steering cylinder even before i noticed those troubles, has a weak response vs the rotation of the steering wheel, so i dont think its a good pump
 
   / Help for plumbing a prince rd500 priority valve with loader valve and steering valve #10  
Try picking a used pump from the junk yard. They don't go bad to often.
 

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