[AT] PTO shaft grease?

[Stephen Offiler]

My CNC lathes at work use collets rather than chucks to hold the bar
stock.  I used to have some trouble with the collet-closer, which is a tube
the  collet sits inside, with an internal taper at one end that matches the
taper on the collet.  The tube is pushed against the collet, the tapers
bear against each other, forcing the collet to close.  Anyway, ours are old
and I guess somewhat worn (although they appear pretty good) and they'd
stick sometimes.  Collet won't open, stock can't feed, and the machine sits
and cuts air.  I went thru several lubricants, from my favorite gear oil,
to a couple different greases (a teflon, and a molybdenum) with no luck.
Never-Seize solved the problem.  We now use it routinely on all of them,
all the time.  Yeah, we all know about the mess.  There are places it works
where nothing else does.

SO

On Sat, Nov 21, 2020 at 5:18 PM Mike M <meulenms at gmx.com> wrote:

> Sorry, I guess "up position" wasn't very accurate. I mean I attach a
> bungee around the area where the top link would attach and then around
> around the PTO shaft putting it at about a 45 degree angle. My problem
> is that the grease dries out and loses its lubrication properties. I
> guess I could use anti-seize, but man does that stuff makes a mess. All
> my equipment is stored indoors if it has a gearbox, or under a lean to
> roof for things like a back blade, or box blade.
>
> Mike M
>
> On 11/21/2020 1:17 PM, Jim Becker wrote:
> > By the "up position" do you mean something close to vertical?  If so,
> > and if the grease separates while not in use, you could be draining
> > the oil off while the machine is idle.  If parked outside, rain water
> > will make it worse.
> >
> > I'm assuming you have been greasing it before use and don't have the
> > problem until after it is parked again.
> >
> > By the way, higher grade greases tend to separate less than cheaper
> > grades. One rated for wheel bearings may be better for the problem you
> > are having. Here is a page with more than you probably want to know
> > about grease.
> > https://www.etrailer.com/faq-grease.aspx
> >
> > Jim Becker
> >
> > -----Original Message----- From: Mike M
> > Sent: Saturday, November 21, 2020 10:42 AM
> > To: at at lists.antique-tractor.com
> > Subject: Re: [AT] PTO shaft grease?
> >
> > Thanks guys that give me some ideas to try. Carl, I use a rubber bungee
> > cord to tie my shafts in the up position when not in use.
> >
> > Regards, Mike
> >
> >
> > On 11/21/2020 10:06 AM, szabelski at wildblue.net wrote:
> >> I use marine grease that doesn’t seem to break down when exposed to
> >> water. The only draw back I can complain about is that the two halves
> >> of the drive shaft tend to slide apart on their own when I disconnect
> >> the drive shaft from the PTO and I have to store the tractor end
> >> apart from the implement since the two halves won’t stay together
> >> when disconnect. I also is it on the PTO shaft before connecting the
> >> drive shaft to the tractor.
> >>
> >> Carl
> >>
> >>
> >> ----- Original Message -----
> >> From: Mike M <meulenms at gmx.com>
> >> To: Antique tractor email discussion group
> >> <at at lists.antique-tractor.com>
> >> Sent: Sat, 21 Nov 2020 00:45:27 -0500 (EST)
> >> Subject: [AT] PTO shaft grease?
> >>
> >> Hi All, would like to get opinions on PTO shaft grease. Whatever I'm
> >> using now doesn't seem like the right stuff. I'm not talking about the
> >> universal joint zerks, but rather the grease that keeps the two halves
> >> of the shaft sliding smoothly. Anything I use seems to harden up and get
> >> dry. Any suggestions are appreciated.
> >>
> >> Thanks,
> >> Mike M
> >>
> >> --
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