Branson 6530 hydraulic problem.

[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.