B6100 3-pt falls slow

[nostep]

I have a B6100 and since becoming the owner (3 years ago) I've noticed that the 3-pt lift falls slowly. Sometimes more than slowly. Does that sound more like the valve, or the lift cylinder? How much headache for a novice Kubota repair person?

 

[Oldtractorfixer]

Most tractors have any adjustment for the speed at which it falls. It is called draft control on some. On my B7510 it is a knob facing forward near the floor below the front of the seat. If you turn it too much it is very slow. Are you sure you didn't accidentially adjust something?

 

[KubotainNH]

It probably needs the seal replaced on the piston under the seat. Mine drops too after awhile. These tractors are 30+ years old, the seals get tired. I'm pretty sure there's some posts on here about it if you do search.

 

[Notforhire]

I have a B6100 and since becoming the owner (3 years ago) I've noticed that the 3-pt lift falls slowly. Sometimes more than slowly. Does that sound more like the valve, or the lift cylinder? How much headache for a novice Kubota repair person?

Do you mean that it lowers by itself, when the tractor isn't running, or it is slow when you try to lower it?

 

[nostep]

Falls by itself. Just trying to get good guess on if it's the piston or the valve.

Thanks both

 

[KubotainNH]

O-ring on piston is my bet. http://www.tractorbynet.com/forums/parts-repairs/88048-repair-kubota-b7100-dropping-3pt.html

 

[nostep]

Sorry it took me so long to get back here. Busy summer. Anyway, I pulled the top off the cylinder just like the notes above showed. Real easy. I didn't have a magnet, but I got the piston out by slamming the lift arms down a bunch of times. Each time, the piston came out about 1/4" inch. I have to wait for the o-ring (plus the plastic dirt ring) to come in. Not expecting any trouble from here. Thanks all.

 

[KubotainNH]

Good deal.

 

[nostep]

OK, replacement of o-ring (plus backup ring) went smoothly. 3-pt still feel all the way down over a several hour period. Any tips on what to try next?

Thanks.

 

[KubotainNH]

Did the cylinder look good and smooth? No bad areas to allow seepage? If all is good then the only thing left is the valve itself unless the 3pt/aux valve is the culprit but if it is capped like mine then it can't be that. You can see in the attached picture what is in the control valve.