Glide shift transmission

[Robbob]

I have no power to the in any gear and will only travel in gears 1 through 4. It will move but not under load. All the hydraulics work and I changed the oil with kubota oil and filters. The tractor only has 1200 hours on it. There was about a table spoon of small clutch looking pieces in old hydraulic oil the biggest was about 1/8 × 1/4. Problems started when I towed a trailer down the road a few miles, I'm guessing some clutches got fried and whats involved in fixing it or a book on rebuilding

 

[North Idaho Wolfman]

It sounds more likely that you've tossed the mechanical clutch, not the hydraulic clutch.
Usually when the hydraulic clutches go out on these they wont even think about moving in any gear.
And I'll bet the pieces that your finding are from the brake disks not the clutch, but anything is possible.

How to test if it's the mechanical clutch or the hydraulic clutch:
Do you have a PTO powered implement, ground engaging one's are the best or a brush hog and thick grass.
If the PTO stops tuning on engagement or tractor attempting movement, then it's the mechanical clutch.
If the PTO works perfectly yet the tractor will only slightly move then it's probably the hydraulic clutch.

These are the hardest of all the transmissions to rebuild, I've done several.
There is about 150 parts that need to come out to repair / replace the hydraulic clutch, NO that's not an exaggeration, as there is 78 O-rings alone.
And the clutch pack is a little pricey, as are the supporting parts your looking at $1500 in parts.
Are you very mechanically adept?
If so there is quite a few steps to pulling them apart, and precise steps to put them back together.

And as a warning VERY few Kubota shops have mechanics that know anything about that transmission let alone work on them.
I've gotten several of those in the last few years to rebuild that someone else has botched!

I've even had entire transmissions shipped to me to repair from back east!

FYI: I hope it's a mechanical clutch issue! I'll send you a link to download the WSM.

 

[Robbob]

Thanks for the information, I can do mechanical work , I worked as a repairman on Gradall excavators. I know what you mean about how difficult something like this can be and I wouldn't attempt it unless I had the proper tools and a detailed book!

 

[North Idaho Wolfman]

Thanks for the information, I can do mechanical work , I worked as a repairman on Gradall excavators. I know what you mean about how difficult something like this can be and I wouldn't attempt it unless I had the proper tools and a detailed book!

Well tool wise, it's all normal hand tools, nothing specifically needed for this repair.
Detail book wise well I've given you one, the WSM, the other that helps to clarify specific parts is the Illustrated parts diagrams.
You can get to those here: https://apps.kubotausa.com/illustrated-parts/
And then there is always people like me that are more than willing to help walk you trough issues.
I've done that will others all around the world.

Like I said, I hope it's the mechanical clutch issue, as that's an easy day or two repair job!

 

[Robbob]

It sounds more likely that you've tossed the mechanical clutch, not the hydraulic clutch.
Usually when the hydraulic clutches go out on these they wont even think about moving in any gear.
And I'll bet the pieces that your finding are from the brake disks not the clutch, but anything is possible.

How to test if it's the mechanical clutch or the hydraulic clutch:
Do you have a PTO powered implement, ground engaging one's are the best or a brush hog and thick grass.
If the PTO stops tuning on engagement or tractor attempting movement, then it's the mechanical clutch.
If the PTO works perfectly yet the tractor will only slightly move then it's probably the hydraulic clutch.

These are the hardest of all the transmissions to rebuild, I've done several.
There is about 150 parts that need to come out to repair / replace the hydraulic clutch, NO that's not an exaggeration, as there is 78 O-rings alone.
And the clutch pack is a little pricey, as are the supporting parts your looking at $1500 in parts.
Are you very mechanically adept?
If so there is quite a few steps to pulling them apart, and precise steps to put them back together.

And as a warning VERY few Kubota shops have mechanics that know anything about that transmission let alone work on them.
I've gotten several of those in the last few years to rebuild that someone else has botched!

I've even had entire transmissions shipped to me to repair from back east!

FYI: I hope it's a mechanical clutch issue! I'll send you a link to download the WSM.

Ok I hooked up my brush hog and the pto worked fine, in fact I put it in 6th gear and it took of which shocked me because before it wouldn't move in 5th. It seemed like with the pto engaged with power the drive worked better!??
A glazed clutch would slip and a weak pressure plate would give ! I even broke my shear bolt , now what do make of that?

 

[North Idaho Wolfman]

My guess would be you have a maladjusted or damaged mechanical clutch disk or pressure plate.

 

[North Idaho Wolfman]

I would run it a bit, without using the clutch pedal at all.
You do know you can do that right?
A lot of people don't know with a GST you don't have to use the clutch pedal to change gears or directions, just use the shuttle.

 

[Robbob]

I would run it a bit, without using the clutch pedal at all.
You do know you can do that right?
A lot of people don't know with a GST you don't have to use the clutch pedal to change gears or directions, just use the shuttle.

Yes I knew that, In my experience clutches never grab with more power they get worse. Could be a pressure plate. So do you think we can rule out the GST?

 

[North Idaho Wolfman]

Yea nothings pointing to the hydraulic clutch pack, when the hydraulic clutch get damaged or worn they do it very consistently and with a different effect and feel.
When warm they will start off slow and as they heat up they will lock up and seam to work normal.
And clutch disk that is delaminating will get better for a short time then it will just toss it's cookies.

You would need to split it to do either clutch so it's not really any loss splitting it for the mechanical clutch first.