PTO Sleeve

[tderrick]

Ever since I purchased my 8N years ago, it's had a sleeve or an
extension over the PTO shaft. It has a set screw and a zirc fitting. Does anyone know what this thing is for.
Repair?
Extension?

I'm having a heck of a time getting the set screw out to take
a look. When I do, I'm sure all will be explained.

just curious...

 

[BATTY54]

Without seeing it my guess is an overrunning clutch. It is used for a piece of eguipment like a bush hog that will keep you moving even with the clutch pushed in, don't ask how I know
It aso brings the PTO shaft size to a now standard diameter where the early 8n's and 9n's had a smaller diameter shaft.

 

[flusher]

Without seeing it my guess is an overrunning clutch. It is used for a piece of eguipment like a bush hog that will keep you moving even with the clutch pushed in, don't ask how I know
It aso brings the PTO shaft size to a now standard diameter where the early 8n's and 9n's had a smaller diameter shaft.

That would be my guess also.

My neighbor bought an old IH 57 two-wire hay baler and hooked it up to his 8N without an overrunning clutch. He got the tractor moving and the baler spinning OK. But when he tried to stop the tractor with the PTO engaged, the end of the pto shaft was corkscrewed by the inertia of the baler flywheel that just wanted to keep spinning. More modern tractors with 2 stage clutches prevent this from happening.

 

[tderrick]

Without seeing it my guess is an overrunning clutch. It is used for a piece of eguipment like a bush hog that will keep you moving even with the clutch pushed in, don't ask how I know
It aso brings the PTO shaft size to a now standard diameter where the early 8n's and 9n's had a smaller diameter shaft.

It is a clutch... I remember the fellow saying that now that you mention it.
It's been 15 years! lol

thanks for the mind jolt

 

[Sunkistdds]

Might keep you from needing a casket when you're bushhogging in trees.

 

[Soundguy]

Once you pull the cap and zerk out.. you can rotate the outside of the orc till the outter and inner hole lline up, then driv eout the 2" x 5/16" roll pin that holds it on.

that is.. IF you need to remov eit.. etc.

soundguy

 

[tderrick]

Once you pull the cap and zerk out.. you can rotate the outside of the orc till the outter and inner hole lline up, then driv eout the 2" x 5/16" roll pin that holds it on.

that is.. IF you need to remov eit.. etc.

soundguy

It's wobbling pretty badly. Are there any replaceable parts inside, or should I just pick up a new one?

That big ol' set screw is a bear... I'm not sure how I'm going to get that bugger out...

How does that thing work anyhow?

 

[tderrick]

I meant how does the ORC work, not the set-screw! ha!

 

[aczlan]

I meant how does the ORC work, not the set-screw! ha!

Freewheel - Wikipedia the picture in the article is more or less how a PTO ORC works.

Aaron Z

 

[Sonny580]

They were mostly used on older tractors that didnt have the live pto in them to keep from pushing you until machine momentum ran down. (I have a couple around here someplace that have never been used) -----I never liked them. thanks; sonny580