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eric8

520h PTO clutch in bad shape

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eric8

Decided to take a look at the PTO pulley today and discovered there was no friction material visible when viewing the air gap between the pulley and clutch disc.  Pulled it off, and sure enough, I was right.  She’s toast.  Couple of questions:

1.  Part # 40 in the diagram, identified as the bearing race, will not slide off of the engine shaft.  It appears fused on and won’t budge.  Is this normal?

2.  Part # 39 is supposed to be a bearing seal.  Is it installed currently?  I’m not seeing any kind of lip that a traditional bearing seal would have.

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pfrederi

You have to remove the 4 bolts and  2 small plates then number 40 will come off

 

To me looks like seal 39 is there the rubber part may be worn away

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kpinnc
3 hours ago, eric8 said:

She’s toast.

 

Nah, but she's definitely been used beyond the wear limit of clutch material. :P

 

I would say a new clutch plate is a good idea (not that it can't be fixed), and that PTO bell needs about 5 minutes in a lathe as a minimum. 

 

But just FYI- that style PTO was used on the majority of machines from the early 1980s onward. Finding a decent replacement won't be hard. 

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