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jonkeller

my pto clutch won't disengage

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jonkeller

Hello, 

I don't know if this is the correct forum but I am having trouble with the pto on a b-165.  It won't disengage. I have adjusted it according to the manual with no luck.  There appears to be a small oil hole on the outside and squirting oil in that helped for a while. This is the only vertical shaft machine I have so I am not really familiar with them.  I can tap the lower part of the pulley with a brass hammer and it will release but once I engage it, it is stuck until I do that again. I would not mind taking it apart but I would be working on my back underneath and so would like to know anything I can about them before I try that.  Would appreciate anything you can tell me.

 

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JackC

I had the same problem with two vertical shaft tractors.  I don't remember exactly what I did but I was able to get them both to work properly.  

I basically just worked with the adjustments after getting the top and bottom parts of the PTO separated.  The adjustment may be covered in the service manual for your model or almost any similar vertical shaft unit.  That problem is the main reason I stay away from those tractors.  The electric PTO on the vertical shaft models (252H for example) are OK.

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gwest_ca

Part 4 of this manual explains the pto adjustment

This manual also has it but poor illustration about page 22

This manual also used for 1983

Garry

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jonkeller

Thanks for your replies.

 

I had seen that manual and adjusted the pto it with the correct clearances but the pto pulley stays stuck in the up position.  I guess now I am wondering what it takes to get it apart.  After disassembling the bracket with the .010 clearance will it just come off or will i need further disassembly. Will it need a puller.  It is hard to tell from the drawings and I have never had one off.  If I could get it off I imagine I could figure out what is wrong with it.

 

Jon

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jonkeller

Ok.  So I got the pto pulley off and can see how it goes together.  Everything is turning freely.  There is  a lot of grease in there.  I see it has an oil seal at the top.  Is there supposed to be a lot of grease, some grease, oil or what ?  There is a hole near the bottom so i imagine oil would come out.  How much grease is enough ?

 

Jon

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dwcphoto

Hi Guys,

  If it's alright I'll drop in on this thread, but mine's a horizontal shaft, 518 Onan.  The PTO spins and is pretty tight, even when disengaged.  Do I simply have the clutch too tight? Thank you, dwc

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