[Farmall] overrun clutch question

[Jim Becker]

Just to add a couple notes.  It is unlikely that either your squeeler or 
tractor have overrunning clutches.  If one has already been installed on the 
tractor, it will be attached to the PTO shaft, should look similar to one 
that you find at TSC.  Once installed on your tractor, it will extend the 
PTO shaft by several inches.  The extra length COULD cause a problem 
connecting the PTO of your #5 mower.  If the extra length is a problem, you 
can remove the overrun clutch when you mount the #5 mower.  It would be a 
bit of a nuisance to have to remove/reinstall the overrun clutch, but not 
that big of a deal.

Jim Becker        jim.becker at verizon.net

----- Original Message ----- 
From: "DBigdog" <DBigdog at columbus.rr.com>
To: "Farmall/IHC mailing list" <farmall at lists.antique-tractor.com>
Sent: Monday, September 29, 2008 10:01 AM
Subject: Re: [Farmall] overrun clutch question


Lisa,
    A slip clutch and an overrun clutch are different things.  The slip
clutch will "slip" if the implement binds up and protect (hopefully) the
drive system.  An overrun clutch allows the implement to coast when the
input shaft (pto) is running slower than the driven shaft (mower).  It has a
ratchet mechanism that allows force in one direction only.  Your H would not
have that feature built in.  Adding one would not affect the operation of
your sicklebar mower.
    Overrun clutches are available at places like TSC.


----- Original Message ----- 
From: Lisa Kelley
To: farmall at lists.antique-tractor.com
Sent: Monday, September 29, 2008 10:50 AM
Subject: [Farmall] overrun clutch question



Hey all-

I am not tractor savvy, so excuse if this is a really dumb question ;-)

#1 I just bought a used "Bush Hog Squeeler" pull type mower to run off my
1943 H. I've read  recomendations to use an overrun clutch on the PTO when
running these kind of implements on old tractors. The Bush Hogs manual says
that it has slip clutch between the connector shaft and the drive housing.
Is this going to stop the implement from  driving back down the PTO and
running my trans.? Or is it something totally different?

#2 how would I tell if my tractor already has a overrun clutch on it's PTO?

#3 I also got a JD #5 sickle mower -- if i need/get an overrun clutch for
the tractor will it effect operating the old sickle bar? ( I  have manual
for that  says it has a slip clutch to protect it's shaft to drive mechanism
blah blah blah)

#4 if I need to get an overrun clutch for the H- where's a good place to get
one?

I have  old famah  neighbors that babysit me and my learning curve with the
old H ;-) ....but they don't seem to know anything about this overrun clutch
stuff-- they didn't think it was anything to worry about? I haven't run
anything yet