[AJD] need some help with PTO ???

[Robert E. Harris]

Lou,

Thanks so much. You confirmed exactly what I thought I knew. The PTO shaft
on this small chipper/shredder has a matching PTO shaft and indent.
I guess I should have just recognized that matching splines and diameters
would indicate a sameness. I think I have a winner... and just in time for
some pruning in the orchard and shredding oat straw for the poultry house.

Appreciate all the responses. I'm sure glad y'all are out there....

Bobby



-----Original Message-----
From: antique-johndeere-bounces at lists.antique-tractor.com
[mailto:antique-johndeere-bounces at lists.antique-tractor.com]On Behalf Of
Louis
Sent: Tuesday, January 11, 2005 7:29 PM
To: 'Antique John Deere mailing list'
Subject: RE: [AJD] need some help with PTO ???

Your tractor more likely than not has a 540 RPM PTO.  The shaft should
be 1 3/8" diameter and have 6 splines.  A 1000 RPM PTO will have 21
splines for small tractor (below 150hp) application.  You never want to
hook a unit designed for 540 RPM up to a 1000 RPM shaft on a tractor
(theoretically you can if you run the engine at about 1/2 speed, but you
better be sure you don't go above that).  If you do, you are going to
have all types of things flying apart, and it won't be pretty.  If you
hook a machine designed for 1000 RPM up to a 540 PTO shaft on the
tractor, you won't get the speed or desired effect out of the machine.

The Ford most likely had a 540 RPM PTO.  It may have a 1 1/8" shaft.  If
that is the case, you will have to change the yoke on the end of the
shaft.  There really is no way to hook a 540 up to a 1000 or visa-versa,
unless you use adaptors and/or someone changed the yokes on the end of
the shaft that hooks to the tractor stub.  The shaft from the machine
should fit on your tractor snuggly, without slop.

Lou

-----Original Message-----
From: antique-johndeere-bounces at lists.antique-tractor.com
[mailto:antique-johndeere-bounces at lists.antique-tractor.com] On Behalf
Of Robert E. Harris
Sent: Tuesday, January 11, 2005 9:42 PM
To: JD list Atis
Subject: [AJD] need some help with PTO ???


Howdy gang,

Happy new year to you all.

Have a chance to buy a very sharp PTO driven Chipper/Shredder for the
farm. Very nice little unit and a great price. problem is I don't have a
great deal of background knowledge about PTO's. I know there are two
standard speeds but how does one know what goes with what if it isn't
clearly marked? I have a JD 1070 and it's PTO speed / rating is clearly
marked in the manuals. No problem there... but this little shredder unit
has no PTO markings, nor manuals. is this a dumb question or is there
something I need to know here? The seller hooked it up and ran it for me
on an ancient Ford but I have no idea what the Ford PTO speed was, or if
it is the same as mine.

The obvious question that I truly don't know the answer to: are PTO
ratings critical and what would happen if they were mismatched? OK guys,
I'm humbled and ready for some schoolin'.  All answers appreciated.

Bobby


_______________________________________________
Antique-johndeere mailing list
http://www.antique-tractor.com/mailman/listinfo/antique-johndeere



_______________________________________________
Antique-johndeere mailing list
http://www.antique-tractor.com/mailman/listinfo/antique-johndeere