John Deere 7210 tractor three point

The 3 point on this tractor will go up but will not go back down on its own. What could cause this? Thanks

Do you have anything attached to the 3pt or is it empty? On our 7200 it is hard to get down without something on it (spear, hay unroller, etc.)or standing on it. Dealer has told me that those tractors were "meant" to have a quick hitch on them and without that extra 200 lbs they like to stick up. Hope thats all the problem is.

Try loosening the hoses to the lift cylinders and see if they go down then. If they go down with the hoses loose there is nothing wrong. If they stay up with hoses off it is binding somewhere. I have seen them get moisture past the outer cylinder seal then rust behind the guide ring puts pressure on the rod. Could also bind on the rockshaft if not lubed.

Agree that they don't go down without a load--at least not my JD 7400.

The 3 point arms on my 7400 tractor will go down slowly when there is nothing attached, but the engine must be running. If the engine is turned off and the arms are up, they will stay up, even with an implement attached. I have assumed this was the normal situation and that the pump, valves and cylinders were in good, tight working condition.

Have you checked all of the settings that control the three point hitch on the tractor??? You can set the rate of drop for different loads. If yours is set to a heavy load it will not drop with just the lift arms. You set this by raising the cover that is just in front of the three point control slide. There are two knobs under the cover. One limits the lift height the other sets the rate of drop. The engine has to be running as well.

If you do have the rate of drop set correctly then did this problem happen all at once or just over time?? I have ran into many 7000 series JD that the three point arms will not go down without weight on them IF the three point had not been used for a long time. The three point lift cylinders are a one way cylinder that have a seal ring and wiper setup. The seal rings can make the cylinders require more weight than just the lift arms. The cylinder ram is exposed when the three point hitch is all of the way up. Make sure the exposed part is not rusty. Then put a load on the three point, I often just hang a suit case weight on the lift arms. I then spray a good penetrating oil/lube around the cylinder ram. Then run the three point up and down while lubing it as you do this. Most of the time the cylinders will free up by just doing this. I have had to overhaul them if they still are moving hard.

If you are not going to be using the three point for a long time remove the lift links/arms and retract the lift cylinders. This way the chromed cylinder rams are not exposed to the elements.

Email me if you have any more questions.

Worked on a 7600 that the rockshaft bushings were tight from dirt/rust. Unhook the lift Cylinders and see if it goes down.
Good Luck,
Andy

The seals on the cylinders tend to leak dirt after a while. Dirt gets down to the bottom and doesnt let the assembly move freely. Need a new seal kit and a good cleaning. Somewhere around 500 bucks.