This is the earliest version of the quick hitch design. It did not use an integral clutch and
instead relied on the hi/lo clutch in the tractor, which was not an ideal design.
And on the subject of no clutch, one of my site visitors e-mailed me this story:
Thanks for all the posting of Gravely info and pics on your site.
It has to be the best Gravely site I have seen. Maybe it is the
reason you haven't got your cart project completed.
Anyway, I thought I would throw out a bit of info. I recently bought
a Mighty Mac shredder from a friend of my dad's. He supplied it
with the slipless clutch. The shredder is in great condition, almost
like new. The reason being because he stalled the shredder on
something and because there was no slippage it damaged some
parts inside the tractor. He never used the shredder after that.
I have every reason to believe that this was the quick hitch
supplied by the dealer when he bought the shredder. He owns
no other quick hitch attachments. If it was the one supplied
with the shredder, it was a mistake by design.
I have used the shredder with my tractor and it works pretty good.
Depends what you are shredding and which screen size you use.
I'm still figuring that out. I did loosen the belt that connects the
pto shaft to the shredder hammers. When the material is too
tough for the shredder the slippage occurs at that belt. I figure
it is cheaper than the repair bill on the tractor. Some day
I will change over to the slipless clutch. Well, that's my two cents.
Not so long ago I posted to the Yahoo Gravely photo site a
couple of pictures of the hitch (there was one on sale at eBay),
and a Gravely illustrated parts sheet. They are in the Eric's
album. You are free to lift the parts sheet. Or I could scan it in
again to your specs.