Fun with a B21 Differential

[zenmek]

Hey Yubby...don't want to bring ya down, but it looks like you're puttin' your seat on backwards just kiddin' great job

Will

 

[yubby]

Finally had a chance to finish up the job. Once the subframe was installed the rest went really fast. Put the loader back on and the ROPS in less than 1 hour. Then another hour to put the fenders and tires back on.

Then the true test, no hydraulic leaks, went into every gear, pto started, 4wd worked.

The only issue I ran into was the differential was locked, but after pressing the pedal a few times it came loose.

All told took about 8 hours to disassemble, 12 hours back together, and 3 weeks waiting for various parts to arrive.

merry xmas -yubby

 

[yubby]

See attached picture for smiling operator!

cheers -y

 

[Wclark160]

Hello Yubby. It痴 13 years later and your post is bringing a lot of knowledge to me. I have almost exact same issue. I知 looking for a new case and Kubota is very proud of them. Messicks is a little better but not much. Do you remember if you bought straight from a dealer? I know it痴 reaching way back in time and I understand completely if you have no recollection. Thanks

 

[Wclark160]

Hello Yubby. It逞ｴ 13 years later and your post is bringing a lot of knowledge to me. I have almost exact same issue. I遏･ looking for a new case and Kubota is very proud of them. Messicks is a little better but not much. Do you remember if you bought straight from a dealer? I know it逞ｴ reaching way back in time and I understand completely if you have no recollection. Thanks

It痴 obvious I have used incorrect syntax. I apologize and will go see if any posts are out there stating what can and cannot be used.

 

[goeduck]

It looks like yubby has not posted since 2012. If I may ask, how many hours on your B21 and what is the work history of it?

 

[Wclark160]

It looks like yubby has not posted since 2012. If I may ask, how many hours on your B21 and what is the work history of it?

I was afraid Yubby might be available! It has 1500 hrs on it and I知 not sure of the history. I think I might have caused it by being pretty rough with it. it seems to be a weak point. I busted my differential case as well. Oh well, live and learn.

 

[dfkrug]

it seems to be a weak point. I busted my differential case as well.

In my case, it was parts of the transmission breaking off internally and getting into the differential gears. My full rebuild is posted.

 

[goeduck]

Oh great, I have about 1600 hours. Tick, tick, tick,,,,

I am not hard on it but the previous owner could have been, I do not know.

 

[dfkrug]

Oh great, I have about 1600 hours. Tick, tick, tick,,,,

One of the failure modes is to force the range shifter and break an internal part. I think an owner who cares (not a renter) can avoid this behavior. It is interesting that many/most CUTs don't shift ranges easily since the gears are often straight-cut, and sometimes under small loads.

I think the B21 is a good tractor, if somewhat under-powered, and with a weak 3-point. Many of them are in rental fleets.