PTO lever adjustment after buying used Zetor

oldironnewtricks06

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I recently picked up a used Zetor that had a slipping PTO. I took it apart and replaced the friction plate, but I'm not quite sure how to adjust the three PTO clutch levers correctly. If anyone has experience with this, I would really appreciate any tips!
 
Check the linkage under the slave cylinder and use the rod to have about 1/10 of an inch of play on the secondary level. Next move all 3 levers to the same height so that they can engage the clutch evenly. If you have spring tension bolts loosen them and run the PTO so that you can clean the clutch surface. From that point on it's just the process of tightening them a bit by bit until the clutch doesn't slip anymore but still disengages like it should.
 
Set all three PTO clutch levers to the same height per the manual's spec, usually using a feeler gauge. Even adjustment is important cos if one's off, the PTO can still slip. A service manual for your exact Zetor model will have the correct clearance.
 
Check the linkage under the slave cylinder and use the rod to have about 1/10 of an inch of play on the secondary level. Next move all 3 levers to the same height so that they can engage the clutch evenly. If you have spring tension bolts loosen them and run the PTO so that you can clean the clutch surface. From that point on it's just the process of tightening them a bit by bit until the clutch doesn't slip anymore but still disengages like it should.
Thanks for this! But when adjusting the three levers to the same height, is there a visual reference point you use, or do you measure it somehow? Also, when running the PTO to clean the clutch surface, how long should I let it spin?
 
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