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Tractor Talk Discussion Forum

Simplicity with front-end loader - PTO problem

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Jeff

03-10-2004 18:01:52




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A little over 1 year ago, I bought a used Legacy (1999). After about 35 hours of work, the PTO belts broke because the pulley had loosened on the shaft (the hole had widened, in fact, when I looked at it, I assumed the last guy had put on the wrong pulley) and the pulley was so wobbly the belts broke. As a result, I replaced the pulley, shaft, key, washers, retaining rings, and belts. Everything was snug and I figured my problems were over. 50 hours later, I'm going through the same process except that I'm also replacing the bearings although they looked and felt fine. I e-mailed Simplicity and they told me that there was no redesign anticipated and no know design issues. Any ideas before I get it all put back together?

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IMKCMAC

03-11-2004 18:12:42




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 Re: Simplicity with front-end loader - PTO problem in reply to Jeff , 03-10-2004 18:01:52  
Jeff,
How does it lock on to the shaft?If it uses a set screw,you could drill and tap another hole 90 or 180 degrees from the original,that should help.



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Jeff

03-11-2004 19:14:58




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 Re: Re: Simplicity with front-end loader - PTO pro in reply to IMKCMAC, 03-11-2004 18:12:42  
IMKCMAC, thanks for the reply. The pulley sits on the shaft using a 3/4 inch diameter key/key slot. The shaft runs through 2 bearings and is held in place by 2 retaining rings. All pieces are very snug when put together and when the problem occurs, the retaining rings are still in place but the pulley has been pushed or worn out of shape. The key slot in the shaft looks like a crater by the time I get a look at it. I'm beginning to wonder if the hydraulic pump might be lined up a little off causing a vibration, eventually leading to failure. When I look at the original parts of the PTO and how well they fit together, it's beyond me how anything goes wrong.

Jeff

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