Broken rear pto gear

[Dieter]

I was mowing with the belly mower, going along fine, heard a click ,click click etc.... thought it was a stick or branch caught in mower then it stopped suddenly.what do you think would cause this? This is a B1750 and was using the middle pto.I am thinking of cleaning out the broken pieces and jb welding the case for for now.

 

[Dieter]

You can see all the teeth striped off the drive gear,and fluid leaked out,the B 1750 tractor has less than 1000 hours.

 

[arml]

OUCH !

 

[GSD-Keegan]

Sorry but that is nasty. My main concern would be the trash that is left behind and difficult to get out.

 

[Dieter]

Sorry but that is nasty. My main concern would be the trash that is left behind and difficult to get out.

I think it would be ok because all the brackage is in that contained area.

 

[woodman55]

What ever caused the lower ears to be cracked/broken, is probably the root cause of the pto failure.

 

[Dieter]

I have only had this tractor for about a year,not sure of past history,I think it's about a 1992, maybe someone over used and stressed it,I have not even used the rear PTO for anything.maybe bearings and gears were not shimed right from factory or some one didn't put it together right........I don't think hitting something with the mower deck blades would cause a gear to shred like that.

 

[hagrid]

I see six threaded holes for fasteners and one hole for a locating dowel.

One hole is filthy. Was there a fastener there?

One hole in the upper left is not round.

 

[hagrid]

And what is up with these areas?

 

[Dieseldonato]

And what is up with these areas?
View attachment 81349

I agree, someone at some point got pretty nasty with that tractor.

 

[TheOldHokie]

I have only had this tractor for about a year,not sure of past history,I think it's about a 1992, maybe someone over used and stressed it,I have not even used the rear PTO for anything.maybe bearings and gears were not shimed right from factory or some one didn't put it together right........I don't think hitting something with the mower deck blades would cause a gear to shred like that.

Based on all the cracked castings the 3pt has been badly overloaded. JB weld is not going to fix that. It would be a challenge for a skilled welder.

Dan

 

[Dieter]

And what is up with these areas?
View attachment 81349

From what I have heard it is a Kubota design flaw weak points in the casting,not ideal but enough support around it to keep using it doesn't seem to be getting worse.

 

[Dieter]

I see six threaded holes for fasteners and one hole for a locating dowel.

One hole is filthy. Was there a fastener there?

One hole in the upper left is not round.

All the bolts came out fine,it looks oblong because of wide angle photo.

 

[Dieter]

Based on all the cracked castings the 3pt has been badly overloaded. JB weld is not going to fix that. It would be a challenge for a skilled welder.

Dan

I was only going to JB weld the area that cracked by the PTO cover right side., not the lower supports

 

[rbargeron]

It looks like the damage started some time ago while a rear attachment was being driven. A gear tooth in the 150 gear likely broke out and later, while using the mid-pto, the broken tooth became jammed, breaking the rest.

It may be possible to replace the 150 and its mating gear - but other parts may be damaged. Its a pretty serious failure - reinstating the pto function may not be easy.

 

[Dieter]

I see six threaded holes for fasteners and one hole for a locating dowel.

One hole is filthy. Was there a fastener there?

One hole in the upper left is not round.

The bolts came out fine, upper hole s look oblong from wide angle photo

 

[Dieter]

It looks like the damage started some time ago while a rear attachment was being driven. A gear tooth in the 150 gear likely broke out and later, while using the mid-pto, the broken tooth became jammed, breaking the rest.

It may be possible to replace the 150 and its mating gear - but other parts may be damaged. Its a pretty serious failure - reinstating the pto function may not be easy.




View attachment 81340

Yes, I agree, hopefully not more damage internally.

 

[whitetiger]

From what I have heard it is a Kubota design flaw weak points in the casting,

Actually, it is from extreme abuse!

 

[TheOldHokie]

Actually, it is from extreme abuse!

And it will get worse if not properly repaired.

Dan

 

[Dieter]

And it will get worse if not properly repaired.

Dan

Looks like I would have to replace the case to repair ,does not look weldable.