It would be interesting to see what they did. Adding a filter on the return side of a circuit takes a fair bit of knowledge about pressure drops and back pressures. So that means you have 3 hydraulic filters now, right?
Mysterious leak - B2710
- Thread starter Alan L.
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JRL305
Silver Member
Bird
Rest in Peace
BeezFun, the early B2710s only had one hydraulic filter. I had one, also. Later they added a spin-on filter on the other side, so a total of 2. And I think that's what Alan has.
Thanks. I can see adding a filter, but taking out the metal strainer is surprising.
The problem was that in hot weather (98 degrees or so and up) after about 2 hours of brush hogging the power steering would bind. They determined that it was cavitation and by re-routing the lines they corrected the problem. Not sure why this resulted in a filter rather than a screen though. The tractor was about 18 months old when I noticed the problem and is now nearly 15 years old so I guess so far so good.
Today I put some UDT in the tractor - held maybe a quart. Pulled all 4 quick disconnects and made sure they were clean and reconnected. Fired it up and after 3 minutes here came the fluid - dripping, actually faster than a drip, out of the darn overflow hose coming down from the fuel tank. Then I started working the loader and that is when I saw another of the hoses leaking. I had replaced one of the four that go from the controller to metal lines on the loader a couple of weeks ago. Now another is leaking so I decided to just go ahead and replace the other 3. Drove 30 miles to NAPA and had them made but when I got them back I realized that while the connectors fit the hoses were only quarter inch whereas the other one was 3/8 and I could easily tell the opening in the fitting was too small compared to the old hoses. So....another trip 30 miles back to NAPA.
Got these home and got them installed. I had trouble getting a couple of the disconnects to fully engage. I think the problem was pressure but I don't know how to release it. I tried putting the controller into float position thinking that would do it but it wouldn't. Then I finally got them all connected and the loader wouldn't operate. Curl got to where it would operate but raising and lowering would not. Turns out I had the two bottom hoses reversed on the controller.
I had to gone to great lengths to make sure I had the hoses properly identified but I slipped up somehow. I had seen colored marks on the metal lines on the other end of the hose but on the controller end I had not noticed any marking. Only after I had jumbled up the disconnects between hoses did i notice faint markings on that end also. Before I do this again I need to carefully mark which hose is which. Hopefully that will be another 15 years. There is a canvas sleeve the hoses run through, for protection I guess and probably helps keep a hose from hanging up on tree limb. But it it hard tracing those hoses through it.
Anyway, I finally got it going and did some work. So far no more leaks, including from the overflow hose. I wonder if the leak in the hose caused the other hose to overflow somehow? I hope to find no puddles tomorrow......
Got these home and got them installed. I had trouble getting a couple of the disconnects to fully engage. I think the problem was pressure but I don't know how to release it. I tried putting the controller into float position thinking that would do it but it wouldn't. Then I finally got them all connected and the loader wouldn't operate. Curl got to where it would operate but raising and lowering would not. Turns out I had the two bottom hoses reversed on the controller.
I had to gone to great lengths to make sure I had the hoses properly identified but I slipped up somehow. I had seen colored marks on the metal lines on the other end of the hose but on the controller end I had not noticed any marking. Only after I had jumbled up the disconnects between hoses did i notice faint markings on that end also. Before I do this again I need to carefully mark which hose is which. Hopefully that will be another 15 years. There is a canvas sleeve the hoses run through, for protection I guess and probably helps keep a hose from hanging up on tree limb. But it it hard tracing those hoses through it.
Anyway, I finally got it going and did some work. So far no more leaks, including from the overflow hose. I wonder if the leak in the hose caused the other hose to overflow somehow? I hope to find no puddles tomorrow......
Bird
Rest in Peace
We'll keep our fingers crossed, but sounds like you fixed it, Alan.
Thanks for followup. Did you ever figure out what that overflow hose is connected to up on top?
