question Zetor 3320 clutch rebuild - hard to press clutch?

[Rmoffett]

Gents, I just had my clutch replaced in my tractor. When I picked it up the clutch pedal was very hard to press. Also, the PTO hand clutch is very hard to pull. The clutch for the transmission seems to be doing its job. I have not had the opportunity to try the PTO as it was late when I got it home. Could it be the springs in the New Clutch are that much stronger? I replaced the clutch with a DSF-79010011-KIT Zetor 12.25" or 310mm Double Clutch Kit. New Disk, Release bearing pressure plate assy. bearing and PTO Release bearing from TPD. I am the original owner and don't recall it being that difficult to press when new. Any suggestions would be greatly appreciated.

 

[Joachim]

Measure the thickness of the diaphragm spring in the automatic clutch. They come in two thicknesses, but the thicker one (the Polish one) is considerably harder to operate than the original CZ diaphragm spring...

Why did you replace the entire clutch?

 

[Rmoffett]

Measure the thickness of the diaphragm spring in the automatic clutch. They come in two thicknesses, but the thicker one (the Polish one) is considerably harder to operate than the original CZ diaphragm spring...

Why did you replace the entire clutch?

The PTO clutch would not disengage. I assumed it was stuck. When I to the clutch out and disassembled it the PTO clutch was not stuck and had lots of life (pad) left on it.

Would the spring thickness effect the PTO hand lever as well?

 

[Joachim]

Ok, so why doesn't remount the old original spring?
But the working travel of the release bearings is correct?

 

[Rmoffett]

Ok, so why doesn't remount the old original spring?
But the working travel of the release bearings is correct?

Not sure what you're asking? I did not unmount any spring. Are you referring to the spring on the clutch pedal? How do I check the working travel of the release bearing?

 

[Joachim]

You say you installed a new clutch assembly. So there must be an old one you removed. And you could install the old plate spring from the old clutch assembly into the new one.

Are you referring to the spring on the clutch pedal?

No - this spring is what I talk about:


Is plate spring the wrong word for? Sorry.

 

[Rmoffett]

You say you installed a new clutch assembly. So there must be an old one you removed. And you could install the old plate spring from the old clutch assembly into the new one.


No - this spring is what I talk about:
View attachment 2767

Is plate spring the wrong word for? Sorry.

Ok I understand. Really not wanting to split the tractor again. But may have too! Thanks.

 

[Joachim]

I once had this problem on a friend's Zetor 5011. The clutch was significantly harder to engage than on my own Zetor 5011. In the end, it was actually the diaphragm spring in the automatic clutch. I think the Polish one is 0.5 or 0.8 mm thicker and therefore harder or harder to engage.

 

[Rmoffett]

I once had this problem on a friend's Zetor 5011. The clutch was significantly harder to engage than on my own Zetor 5011. In the end, it was actually the diaphragm spring in the automatic clutch. I think the Polish one is 0.5 or 0.8 mm thicker and therefore harder or harder to engage.

Thanks so much. I have been told the same by others. I am going to exercise my leg. LOL

 

[Joachim]

The thing is, the automatic clutch is available in two versions, one made in Poland and one made in the Czech Republic. From the outside, they're almost indistinguishable. And the price is very similar, too.

It's just awful for the seller not to clearly communicate what they're selling.