B 2650 front and loader will not lift after a few loads

[TomThomas360]

I have a Kabota B 2650 that the front end loader will not raise after I’ve moved a few loads of horse Manor. It’s just goes to the ground. It will not come back up.
All other directions on the handle work including Dump rollback. It was slowing down but now it just won’t go up at all until it’s set for a few hours

I’ve disconnected the quick connect lines and reconnected and thought that was the fix but one load later it was doing the same thing. If I wait a few hours or wait until the next day, the loader will work for a few minutes and then stop working again.
The fluid is full in the reservoir and appears to be clean.
A year or so ago I did notice fluid coming out of the dipstick pipe after dumping some loads into the 5 yard dumpster. I thought it was just because it was overfilled, but I’m still not sure.
I drain the tank and refilled it about two months ago, but the problem started just last week.

MOD EDIT: No email posting

 

[TheOldHokie]

I have a Kabota B 2650 that the front end loader will not raise after I’ve moved a few loads of horse Manor. It’s just goes to the ground. It will not come back up.
All other directions on the handle work including Dump rollback. It was slowing down but now it just won’t go up at all until it’s set for a few hours

I’ve disconnected the quick connect lines and reconnected and thought that was the fix but one load later it was doing the same thing. If I wait a few hours or wait until the next day, the loader will work for a few minutes and then stop working again.
The fluid is full in the reservoir and appears to be clean.
A year or so ago I did notice fluid coming out of the dipstick pipe after dumping some loads into the 5 yard dumpster. I thought it was just because it was overfilled, but I’m still not sure.
I drain the tank and refilled it about two months ago, but the problem started just last week.

MOD EDIT: No email posting

You need to do get a gauge and do some pressure testing. My guess is a bad lift cylinder.

Dan

 

[TomThomas360]

You need to do get a gauge and do some pressure testing. My guess is a bad lift cylinder.

Dan

Hey Dan, thank you, since it has two lift cylinders, don’t you think one would still work or do you think they both went bad?
When I get back to where the tractor is next week, someone suggested, I swap out the hoses with one of the other 3 that are still working. ??

 

[North Idaho Wolfman]

Hey Dan, thank you, since it has two lift cylinders, don’t you think one would still work or do you think they both went bad?
When I get back to where the tractor is next week, someone suggested, I swap out the hoses with one of the other 3 that are still working. ??

The lift cylinders are piped in parallel if either cylinder has blown seals or any other internal issue damage it affects the other directly.

Swapping the hoses around will make no difference.
2 lines run roll, 2 lines run lift.
Swapping one line will just screw up the way the system works.
And it won't isolate a cylinder.

The only ways to know what is going on is:
To take pressure readings
Or just tear the cylinders apart and find out what failed.

 

[TheOldHokie]

Hey Dan, thank you, since it has two lift cylinders, don’t you think one would still work or do you think they both went bad?
When I get back to where the tractor is next week, someone suggested, I swap out the hoses with one of the other 3 that are still working. ??

As mentioned the cyliners work in parallel. A simple test - when it wont lift disconnect and plug,/cap the rod end ports. If it lifts with the ports plugged the seals in one or both cylinders are bad.

If there are quick connects on the lines going to the cylinders just disconnect the rod end hoses. Same as plugging the ports.

Dan