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lawn tractor blades wont engage


ducati1212's Avatar
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04-27-13, 09:59 AM   #1  
lawn tractor blades wont engage

I have a craftsman ys4500 lawn tractor., its 6 years old. after first post winter run the blades are not engaging correct. I just changed the belts and same issue.

So when I moved the mowing lever(to engage the blades) it used to make a thud and vibrate a touch and you knew the blades were engaged. I distinct thud and there was no question the blades were spinning it was like driving a tank with the blades spinning.

Now the blades do spin but no thud at all its whisper quiet and the blades spin up and sound like a washer machine on the spin cycle. no vibration at all I cant tell there even spinning unless I look under it. Maybe like turning on a large fan.

Its absolutely not correct but I don't see any issues anyplace under the deck

 
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marbobj's Avatar
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04-27-13, 12:28 PM   #2  
The blades are spinning, but they won't cut grass?

 
ducati1212's Avatar
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04-27-13, 12:32 PM   #3  
They spin and could probably cut grass but they sound like they might fly off the mower. Picture the sound of a CD spinning up in a drive. its nothing like it was last season.

 
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04-27-13, 01:36 PM   #4  
They would be fixed to the drive spindle with a single center fixing bolt. Check to make sure that's tight and the blades disengage with the correct lever position. If it is and it cuts grass, I wouldn't worry about the rest.

 
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04-27-13, 07:26 PM   #5  
You may have a bad bearing in a pulley making a lot of noise.


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