Branson 6530 hydraulic problem.

[Steve6004]

Thanks for the link to the pressure gauge. I’ll order it. Their website is very helpful also.

 

[LD1]

I think k5lqw has the correct diagnosis. Curious to see if this solves your issues today.

 

[Steve6004]

I removed the plug in the photo attached and installed the “regular “ plug. The loader and tractor now work as advertised. I have the pressure gauge on order and will reset the regulator. I greatly appreciate the help. I’ll read up on hydraulic systems to avoid these errors of ignorance going forward.

 

[K5lwq]

Great to hear! Save that sleeve! If you ever want to add another valve that will provide an easy way to do it. Getting the correct PB sleeve after the fact can be very challenging.

 

[Steve6004]

Will do

 

[LD1]

Yup, save that sleeve and use it for installing rear remotes so you can get a Top'n'tilt kit

 

[Bentrim]

You have an OPEN CENTER system. The pump is positive displacement. the output of the pump must flow thru the system constantly, from the pump back to the reservoir. When you move the valve the oil is simply directed to the cylinder or motor that the hoses go to. The returning oil from the cylinder is sent back to the reservoir.
An open center system MUST have a relief valve, if it does not or is set too high---Somethings going to break, a hose, the pump, the pump drive, the cylinder, or even the valve.
The control valve usually can be configured many ways. One way is as your valve is hooked up. That fitting you took out is what is called power beyond it is used to send oil to another valve such as a backhoe.
The pump does not create pressure, the load or restriction does, the pump only moves oil.
The valve "tells" the oil which way to go.
The cylinder or motor does the work.
It is all connected to together by hoses.
In a hydraulic system the pressure is the same throughout the system. If it takes 2500PSI to lift the load it will be the same at the outlet of the pump to the cylinder doing the lifting

This may or may not help you understand a little about hydraulics, but recommend searching for Basic Hydraulics and picking a site that helps you understand the basics.

 

[Steve6004]

Thank you. That explanation does help. I will buy some basic diagnostic test equipment and learn, learn, learn.

 

[layne0]

Guys,
I have a 6530C with the EXACT same issues that Steve posted originally back in 2022. I got the tractor used where it had some damage, but was told that the guy "mowed a lot of brush". I think they wrecked it, got it working as best they could and then unloaded it on a poor honest fellow like myself.
I want to get it working right and have been scratching my head. While I'm idling it constantly sounds like the pressure relief valve is operating, and the engine seems more labored than when operating the FEL. The hydraulic lines will get really hot, even if I'm not operating the 3pt or loader.

Even the other issues that Steve has described I'm seeing. But, the pictures of his new valve look different than mine, and I have a copy of the hydralic schematics for the tractor, and even those look like a different valve. I'm wondering if the guy put the incorrect valve on. And, if so, could I fix this one so that it's working right, or go spend the money to buy the correct valve...

I was wondering if you guys were still around, if you'd be willing to help? I can grab some pictures and get some video of the bogging, and close ups of the ports on the valve and the schematics. Just what would be a good starting point?

 

[Harry in Ky]

Photos always help. Closeups are good, but so are details of where lines come from and where they go. Also, does it make any difference if the three point is not fully up? On some tractors that is a factor.

 

[layne0]

Harry, thank you for getting back to me. I am going to clean the tractor off and take some clear pictures. Below is the parts manual that I grabbed for the loader, and also the extract from the tractor manual for the hydraulic system. I'm going to follow this up with pictures of the lines. It's raining outside so I'll get them when it clears up.

And yes, it does seem like if I don't have the 3 point all the way up, my FEL tilt is VERY slow. I will confirm that...

 

[Harry in Ky]

Most of that is of little help with the problem. Details of the current loader valve and it's connections to the tractor are what's most relevant. The three point question was mainly aimed at whether or not the tractor has a feedback linkage on the lift system. Those are well known for creating hydraulic issues should that (unfortunately, external and vulnerable) linkage get out of adjustment. It USUALLY will come into play when the lift arms are fully up and the system keeps pumping oil into the lift when it should cancel back to a neutral mode. Maybe you don't have that at all. I'm no Branson authority.

Have you read through the posts concerning the problems and eventual solutions of this original thread?

 

[layne0]

I just wanted to get those diagrams in the thread, but I had to wait until it stopped raining so I could clean the parts and get good pictures of the current valve. Yes, I did read through the posts concerning the problem and the eventual solution. The person earlier had replaced the FEL valve, and the issue turned out to be a "Power Beyond Sleeve" that they needed to move from the old valve to the new one. In my case, I bought a used Branson 6530c and I'm experiencing the same issues, but I don't know if this valve was ever replaced or if someone hooked it up incorrectly, or if that Power Beyond Sleeve is the issue. The previous poster just said they replace the valve with the old one. Does that make sense? Let me summarize where I'm at:

Issue
I'm experiencing erratic behaviour between the FEL and the 3pt lift. Sometimes the 3pt will not operate. Sometimes it will but only if I'm opening FEL valves.

I'm hearing a "swishing" sound that goes away whenever I engage the joystick in any direction for the FEL. The RPM will go up slightly while the valve is open but then bogs down again when you release the valve, or when I reach the end of the cylinder piston.

I have also observed that the hose attached to the "P" port on the FEL valve seems to be under constant pressure, and it will get very hot. When I operate a valve, it also seems to be under less pressure.

When I try to raise the 3pt, it will not completely raise unless I operate the FEL valves. I'm not certain, but I believe only certain valves on the FEL will allow the 3pt to "get enough pressure" to raise.

I don't know hydraulics, and I'm not able to find anyone local that can help me troubleshoot this. Looking at the FEL diagram that I attached earlier, I don't see any difference in the "new" or "old style" valve setups that could tell me if I have the wrong Power Beyond Sleeve or if the houses are not correctly connected. But it sure seems like it from what I previously read and am seeing.

Let me know what other information could help.

 

[Harry in Ky]

If you look at the photos in the early posts the solution found was removing a certain fitting. Your third photo shows what appears to be that same fitting. It's a power beyond sleeve with a plug in it. That's what's wrong here. Remove that plug, (not the whole fitting) replace it (the plug) with a fitting you can connect the hose on that side of the valve onto. Then locate a hose and what fittings you need to connect the port you removed the hose from directly to the tractor reservoir. You will be amazed at the difference that will make.

 

[K5lwq]

I agree with Harry. However, I believe in this case the loader valve is the last valve in series so I would remove the PB sleeve and replace it with a plug. The plug that is now in the PB sleeve likely will fit the carryover port on the valve. This will fix the problem and no need to purchase fittings and hoses.

 

[Harry in Ky]

I would disagree. My impression is the three point is in the mix here. The description leads me to believe the three point is behind the loader valve (as it well should be) and not using the power beyond sleeve to supply it is the wrong way to go. That's why three point operation is erratic and affected by use of the loader valve.

 

[K5lwq]

I see that now so you are correct. My bad for going straight to the photos and skimming the post.

 

[layne0]

Harry/K5, I'm so glad you guys are still around to give me a hand. Blessing like no other. I've been ready to drive this tractor off a cliff...

I put some comments on the attached image to confirm what you were suggesting, Harry. Take a look and let me know if it's correct.

I was curious: The schematic for the loader in my earlier post doesn't show a second hose that goes back to the reservoir. Is this just an improvement to do it this way? Why did the person in the earlier post just have to replace a PB Sleeve?

 

[Harry in Ky]

Yes, that's what I'm suggesting. As for the first part of all this, I really don't know why it ended as it did. If simply removing the power beyond sleeve (if that's indeed what happened) solved his problem, then so be it. His tractor, his choice. If his problem was actually the same as yours, then he should have done as I suggested you do. If his system required power beyond and he took it out, then he's likely to regret it at some point.

 

[layne0]

I'm going to work on doing what you suggested, and I'll make sure to post an update after it's done. Can I ask a related question? I'm looking at buying a Vermeer R2300 twin rake. The rake is run by hydraulics, but the two remotes on this tractor don't have a float/detent position on them and no flow control. Is is possible, from the FEL valve above, that I could tap into that to run the rake? If so, could I just use an on/off valve with a flow control? The pump capacity is 11GPM. Would it overheat the fluid to run a rake?

R2300 Twin Rake

More hay in a day.

www.vermeer.com