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Bolens 1886-01
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I've been reading threads where the pto is either stuck on or off. While I had mine apart for restore I took some pictures of how this works. You will see that the pto shaft runs inside of a couple of pipes so to say. They are what guides the shaft as you push the lever left to right. Now, on the lever there is a coil spring that rest against a pin that is driven into the shaft. As you push the lever from side to side the spring coils up under pressure and rests against the pin on the shaft. That pressure is what allows the shaft to turn the pto rod to move the pulley to engage/disengage.

That pin sometimes breaks off, or sometimes the spring gets rusty not letting the shaft turn. Most of the time the shaft gets rusty inside of the pipe guides and when you move the lever to engage/disengage all you are doing is compressing the spring and not moving the shaft.

I had to go in and free up the pipe guides as the shaft rusted inside of them. You will also need to oil up the linkage that connects the lever to the shaft. There is a roll pin there that gets rusty and not allowing the lever to move back into position.

I hope this helps everyone who has issue with pto. I had to replace a pin on my worker 1556 and it involved removing the seat pan to do it. Good luck.
 

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A nice guide to go by Ed, thanks. Wouldn't you like to he the genius that came up with that piece of engineering.
 
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