Air in 210 Loader cylinders

MattG · Jun 17, 2005

Have air in the loader loader cylinders that I can't get out completely and keeps coming back the longer I use it. I can grab the cutting edge of my bucket and curl it up and move the rams 8 to 10" into the cylinders. Has anyone else had this problem? If so what have you done to correct it? I have had it to the local John Deere dealer. They didn't have any idea. Local JD rep came by when the tractor was at the dealer, said I needed to keep the rpm's up high. I was running it around 2500 rpm. Ran it at 2900 rpm and it didn't make any difference. What do all you 2210 owners run your tractor rpm's at when doing loader work? /forums/images/graemlins/frown.gif

lance_w · Jun 17, 2005

I doubt you have a air problem, It sounds like you have a spool that is not closing completely alowing fluid to travel back and forth. Not sure if this means you have a bad valve or if this is just the nature of this valve as mine will do the same thing say after a quick dump. Someone with more hydraulic expertise may be able to better explain.

JDFANATIC · Jun 17, 2005

Matt,

Welcome to the forum. I'm still not clear as to what problems you're experiencing, but as for the rpm's, I use my loader at everything from idle (slow) to about 2800-2900 for really heavy work.

MattG · Jun 17, 2005

Thanks for the replies.

Lance W,
It is air in the cylinders. I loosened a fitting at the top of one of the bucket cylinders and curled the bucket by hand and I could hear air come out as well as spitting hydraulic fluid.

JDFanatic,
I'll try to make it clearer as to what my problem is. You might try this yourself. Use your hydraulics and lift the bucket about 3-1/2' off the ground. Uncurl the bucket so the cutting edge is pointing down about 30 degrees. Now, go stand in front of the bucket and grab the cutting edge with both hands and pull up like you are trying to curl the bucket. Are you able to move the rod into the cylinder? I can get the rod to move between 8 - 10" into the cylinder. When I let go of the bucket the rod comes back out. I hope that explains it a little better. When it was at the dealer I had to show them what I was talking about.

I also believe there is air the lift cylinders, but it is much heavier to lift.

JDFANATIC · Jun 17, 2005

Matt,

I just tried what you describe and there is no way I can move mine by hand. You definately have issues with your hydraulics. /forums/images/graemlins/frown.gif Let us know how you resolve them.

KENSFM · Jun 17, 2005

Are you sure that your hydraulic fluid is at the proper level? If the loader was installed on the tractor without adding additional fluid you will have problems.
Just a thought,
Ken /forums/images/graemlins/smile.gif

lance_w · Jun 17, 2005

I believe I had the same issue with mine at one time. Whenever I would dump the bucket by pushing the joystick fully right ( fast dump) and then put the loader down to back drag, the bucket would roll up level not holding position. I would have to hold the joystick right for something like 10 seconds for the bucket cylinders to build pressure. Somewhere in the forum someone explained that in fast dump
the fluid flows directly from one side of the cylinders to the other alowing gravity to take over. There is a small plate next to the joystick linkage that you can flip over to prohibit the joystick from going fully right into fast dump. Since doing this
I haven't had the problem. I think there is a reference to this in the 210 loader manual. I'll look when I get home.

JDFANATIC · Jun 18, 2005

lance,

If memory serves me right (scary thought) that plate is a lock out of all the loader functions -- or should be. /forums/images/graemlins/confused.gif

MattG · Jun 18, 2005

Update!

Went to my local JD dealer and explained to the service manager that I was still having a problem. He showed me his email from JD tech support. The other option JD suggested is to put an orifice in the rod side of the bucket cylinders circuit. I'm no expert, but it seems to me it is a bandaid for some other issue. If it was a design flaw/restriction, I would think it would be needed by all 210 loaders. If it works and doesn't cause other problems, like slow dumping, I guess I shouldn't complain too much. Or should I?

JDFANATIC · Jun 18, 2005

Matt,

I agree this isn't a widespread problem, so that fix seems kind of weird. What is an orfice supposed to do? /forums/images/graemlins/confused.gif