"implement end only" PTO slip clutch?

[Dustin]

\"implement end only\" PTO slip clutch?

Does anyone have any information on what would make a slicp clutch labeled "implement end only" any different than a clutch you can mount right on your tractor's PTO shaft. It would seem to me that the torque one one side is the same as the other. Any advise would be appreciated!
Thanks!

 

[beenthere]

Re: \"implement end only\" PTO slip clutch?

I don't know of any on the PTO drive-end, but only know of those on the implement end of the shaft.
It might have to do with where to initially absorb the shock, as it seems stopping it before it transcends the PTO shaft would be best. But that is just a guess, or gut feeling.

Edit
I am assuming you are talking about a clutch that slips when there is an over-load (rock, stick, ground, etc.) on the implement, that the clutch will thus slip and protect failure of the PTO shaft and tractor. This in lieu of a shear bolt on the implement end of the PTO shaft.

 

[RickB]

Re: \"implement end only\" PTO slip clutch?

A torque limiting ratchet style slipclutch will only work in one direction. if installed on the wrong end of the shaft, it provides no protection as it won't ratchet. Found on rotary hay rakes and tedders most commonly that I can think of.

 

[greg_g]

Re: \"implement end only\" PTO slip clutch?

</font><font color="blue" class="small">( Does anyone have any information on what would make a slicp clutch labeled "implement end only" any different than a clutch you can mount right on your tractor's PTO shaft. )</font>

If I'm reading your question right, I believe you've confused an over-running coupler with a slip clutch. The ORC goes on the PTO spline, but serves a completely different purpose than does a driveline slip clutch. ORCs are generally only used on tractors that are not equipped with a two stage clutch and/or live PTO.

//greg//

 

[Dustin]

Re: \"implement end only\" PTO slip clutch?

Well, I'm not entirely sure now what kind it is. It's a Weasler 560-6006 slip clutch. If I were to describe it, it has two plates with six sets (two each) of bolts (with springs) connecting the two plates, and a friction disk sandwiched in the middle. I have a similiar one on my rotary cutter. I thought it was a friction type torque limiting slip clutch. But what threw me was the sticker on the slip clutch indicating it was supposed to be on the implement end. I appreciate any other comments.
Thanks!

 

[Inspector507]

Re: \"implement end only\" PTO slip clutch?

Isn't it "normal" to mount them at the implement?

 

[Dustin]

Re: \"implement end only\" PTO slip clutch?

Yeah, but the one I have is something like 6" or 7" in diameter, and the distance from the 6-spline shaft coming from the gearbox on the tiller is too close to the sheet metal for that slip clutch to work. I need 5" or smaller, yet I can't find one from a dealer around here and, well, I have the larger one already. /forums/images/graemlins/smile.gif

 

[Soundguy]

Re: \"implement end only\" PTO slip clutch?

Here's my take.. the 'tractor' end would need a 6 spline hub ( if a 540 pto ).. the implement end is usually a smooth keyed or shear pin held hub... IE you can't mount a implement end device that is a smooth hub to a tractor 6 spline shaft.. and vis-versa.

Soundguy

 

[DirtHauler]

Re: \"implement end only\" PTO slip clutch?

OK, I think I may be confused, with my tiller came a PTO shaft and on one end is what I thouht to be a "slip clutch" but it does not have friction plates. It's about 5 or 6" in dia. with a locking "collar", is this a ORC or a "ratcheting" type clutch? I've got it on the tiller end, is this right? Yesterday when tillin' a customer's back yard, I found someones old tire iron, it jambed up the tiller and stalled the motor (nothing broke, thank god) If this is a ratchet type, shouldn't the shaft have kept turning even though the tiller was locked up?

 

[beenthere]

Re: \"implement end only\" PTO slip clutch?

Is yours on the tractor end?

An over-running clutch (usually used on something with a lot of built-up energy like a rotary cutter) allows the 'machine' to coast down when the PTO is disengaged, and is usually on the tractor PTO. The PTO shaft is then connected to it.

What Dustin described earlier (two plates held with spring loaded bolts) is a slip clutch. Just not sure why his has the splined female end towards the attachment (implement end only).

From your description, I can't tell what you have, but something (either a slip clutch or shear bolt) should have 'dis-engaged the PTO shaft when the tiller was hung up. Something in the tractor could break if the tiller can sieze up and stop the tractor engine, (although the iron it hit may have not been a sudden shock load to do that).
I can't answer your question if it is an ORC or a 'ratcheting' type clutch (I don't know what the latter might be). If yours was a slip clutch, then what you describe (shaft kept turning, tiller locked up) should have happened. Don't understand the 'ratchet type' you describe. But hope someone can enlighten us. /forums/images/graemlins/wink.gif