Does you FEL lines always hold pressure??

[Mystro]

I took my FEL off for the first time and when I turned off the tractor, I ran the controller arm around several times to relieve the Hydraulic line pressure. When I went to reattach the FEL a few hours later two of the lines still had so much pressure in them I could barely relieve them by poking the valve with a screw driver. Is it always gonna be this way?? When backing away from your attached FEL, does both your arms disconect from the tractor the same time or does one disengage earlier than the other as you are backing up from the FEL??

 

[TripleR]

No problems with the BX2660, but the BX2200 does that. We now only use the BX2200 for loader work etc., so it's not a problem.

 

[J_J]

By moving the valve levers on the tractor around, should relieve the pressure, any heat increase will build pressure.

The attachment will also build up pressure due to heat. Male QD with rag, pushed in on a flat steel surface will usually relieve the pressure.

 

[bandit67]

I took my FEL off for the first time and when I turned off the tractor, I ran the controller arm around several times to relieve the Hydraulic line pressure. When I went to reattach the FEL a few hours later two of the lines still had so much pressure in them I could barely relieve them by poking the valve with a screw driver. Is it always gonna be this way??

If you pull the lines when hot, possibly. If you pull the lines when it's cooler, then they heat up during the day sitting out in the sun, you will also have that problem. Same goes if any of the hyd cylinders settle and compress a little, so try to take that into account when placing the loader to unhook. Moving the joystick and manually extending a cylinder will help to relieve some pressure if you're having a heck of a time hooking up the coupler.

I occasionally have that issue with the backhoe if I pull it quickly and don't leave myself room to relieve cylinder pressure when it's time to hook back up.

 

[Zick]

Never had a problem with mine, and I do the same thing after disconnecting the FEL (move joy stick around a few times).

Was it hot out or was the FEL worked hard before disconnecting?

 

[ovrszd]

As JJ and Bandit mentioned, I'm betting on heat. A few degrees hotter when you rehook makes a world of difference. I try to remove the loader or front 3rd function attachment after use when the hydraulic fluid is warm/hot. Then when I rehook they are cool and the fluid has shrank making them easy to attach. Even if you simply ran the loader up and down, dump and roll back, a few times before unhooking it will warm the fluid and help with this problem.

 

[Chilly807]

An increase in temperature is my guess as well. It doesn't take much change, either. 10 degrees is enough, or a sunny afternoon after removing the loader in the shade in the morning.

My loader arms come off evenly for the most part, it'll depend on how flat the surface it's sitting on is.

Sean

 

[BeezFun]

... I could barely relieve them by poking the valve with a screw driver.

I keep a piece of 3/8" hardwood dowel in my toolbox under the seat. When pressure builds up like that I put the dowel in QD and tap it with a hammer. I think wood is safer than a screwdriver, don't want to ding anything up in there. Make sure to wrap a rag around fitting so it doesn't spit in your face.

 

[kco]

I asked the same question earlier this year in this thread:

http://www.tractorbynet.com/forums/hydraulics/245727-options-dealing-pressure-build-up.html

What works best for me is CJONE 's suggestion to drain a bit of oil when disconnecting the lines.

 

[Leejohn]

You said this "When backing away from your attached FEL, does both your arms disconect from the tractor the same time or does one disengage earlier than the other as you are backing up from the FEL??
They both should be up before you even start to back away from the loader. Look at your manual I'm thinking you are not doing it right. With loader unhooked from the tractor and the hoses still hooked, shut off the tractor and move your control all around. The loader boom arms well go up a little more. The hoses are the last to unhook and when going back on they are the first.

 

[ovrszd]

I keep a piece of 3/8" hardwood dowel in my toolbox under the seat. When pressure builds up like that I put the dowel in QD and tap it with a hammer. I think wood is safer than a screwdriver, don't want to ding anything up in there. Make sure to wrap a rag around fitting so it doesn't spit in your face.

I had a very funny thought when I read that last statement. Anyone who has worked with hydraulics very much has learned that lesson the hard way!!!!

Little off subject but recently I was running my Brother's backhoe. Had the rear window open on the cab. Broke a hose on the boom lift cylinder. Yep,,,, the spray came directly in the cab. Fluid was running down the inside of the windows and dripping off the headliner. Totally soaked me with hot hydraulic fluid. Not pretty. But funny now.

 

[Mystro]

It had to be the tempature. I think it went up 5 degrees with he sun on the FEL as it sat. I will use a wooden dowel next time with a rag. The screwdriver had me worried I might scratch it up inside the valve.