Well B2150 ate the clutch disc

[Oleracer]

Well it wasn’t the coupler. Clutch disc pressureplate and flywheel looked new . Ate the splines out of the disc. First for me and done a lot of clutches from Peterbilt to race cars. Ate the shaft also maybe too soft should have burnt clutch first . Machine only has 300 hours i only use clutch pedal to start or on off pto

 

[SDT]

Well it wasn’t the coupler. Clutch disc pressureplate and flywheel looked new . Ate the splines out of the disc. First for me and done a lot of clutches from Peterbilt to race cars. Ate the shaft also maybe too soft should have burnt clutch first . Machine only has 300 hours i only use clutch pedal to start or on off pto View attachment 171823

What were you driving on the PTO?

 

[Oleracer]

Nope always disengaged… might roll forward or back using the hoe. Run enough dump trucks tow trucks RGNs to watch that closely… good thought!
But if it was how do you use a brush hog ? I don’t but thought it would be same

 

[SDT]

Nope always disengaged… might roll forward or back using the hoe. Run enough dump trucks tow trucks RGNs to watch that closely… good thought!
But if it was how do you use a brush hog ? I don’t but thought it would be same

Just curious.

"Stripped" input shaft splines are a rather common occurrance on Ford Select-O-Speed transmissions, albeit usually only after decades of use.

Like the clutch in your photo, the torque limiting clutches in Select-O-Speed transmissions do not have clutch disc springs to absorb oscillating load changes.

Over time, the splines in either or both clutch disc or input shaft wear to the point of failure. This failure mode is known as fretting corrosion. Such failure is accelerated by loads having periodically changing loads, e.g., small square balers.

In your case, with a new clutch, I strongly suspect infancy failure caused by substandard materials.

Aftermarket clutch?

 

[Oleracer]

Nope its OEM never apart 300 hours tractor
What like 30-35 years old. I have seen input shafts worn on Peterbilts 1 million + miles. Thing is this clutch looked brandnew. Yep race cars we use solid no spring discs. But the tractor never sees any clutch pedal use at all under power. Guessing just a soft disc. But it did wear both . Oh well after 58 years wrenching on lots of different stuff bound to see something new every now and then.

 

[SDT]

Nope its OEM never apart 300 hours tractor
What like 30-35 years old. I have seen input shafts worn on Peterbilts 1 million + miles. Thing is this clutch looked brandnew. Yep race cars we use solid no spring discs. But the tractor never sees any clutch pedal use at all under power. Guessing just a soft disc. But it did wear both . Oh well after 58 years wrenching on lots of different stuff bound to see something new every now and then.

I misread your original post and thought that you had just changed the clutch.

In this case, almost certainly fretting corrosion.

Once it starts parts can fail quickly as the surface hardened layer on the shaft is quite thin.

 

[Oleracer]

I am sure its been rattling around for a while. Blizzard probably did it in….but run it pretty easy.