[AJD] need some help with PTO ???

[Dean VP]

Bobby:

I think you will find most older equipment was set up for 540 RPM which is a
standard. 540 RPM only occurs at the PTO at near to full tractor throttle so
you will be able to start slow and work your way up when testing. There also
is a later 1000 RPM STD but wasn't used for typical three point or tag along
implements or on older implements. Running too slow isn't as big an issue
from a safety point of view as running too fast but the implement will have
to run at the right RPM to function properly. I would bet heavily it is 540
RPM. 

 A bigger issue may be the size of the PTO shaft itself. There are 2 to
three different STD sizes of PTO shafts and you will need to make sure the
tractor and implement mate properly. Working off the top of my head (really
dangerous) two sizes come to mind like 1 3/8" and 1 1/8 or 1 1/4. Your
tractor manual should tell you what size it has and then you can usually
slide the PTO coupler off the implement to test if it fits your tractor's
shaft size. 

You might want to test it on your B as well to see if it fits but I don't
recall the size of the shaft on your JD B at the moment either. I have all
my manuals in a temporary storage situation right now or I probably could
look this up but.....   A little testing will get you there.    

Dean A. Van Peursem
Snohomish, WA 98290

I'm a walking storeroom of facts..... I've just lost the key to the
storeroom door 


www.deerelegacy.com

http://members.cox.net/classicweb/email.htm



-----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 6:42 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


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