[AT] Tractor shop question

[Spencer Yost]

The regulator is brand new.   So it never worked at all - yesterday was first install.

I took it apart and tried to find broken/missing/incorrectly installed parts but could not find anything.  The only thing I could find was an O ring that seals the plunger when the pressure is "just right". The O ring sits in a groove but  I think it is too thin and does not exceed the depth of the groove.

When you turn the pressure all the way off the plunger will sit with enough pressure as to not leak. But just to soon as you start let some air in,  you're done.  I have an awesome collection of O-rings but I had nothing that would work. Every one I had in that diameter  were all too thick and  Clearly would not regulate pressure well, if at all, at lower pressures.

Improper part pulling (wrong 'O' ring) at the factory is my diagnosis.

Time for a new regulator/filter because I am not going to waste time and gas hunting O-rings.   I can take the guts out and just use the filter part of it.   That way I only have to buy a regulator. But filter/regulator combos are so cheap and inexpensive relative to a regulator it's hard to justify going through the extra plumbing and mounting hassle.

Good thing my mother-in-law got me an the Amazon card for my birthday.

Spencer Yost

> On Jan 20, 2018, at 6:59 PM, Carl Gogol <cgogol at twcny.rr.com> wrote:
> 
> Spencer
> I am recalling a few things regarding regulators, but this is truly a case
> where I have forgotten more than I remember.  Some types do need to
> continually bleed off, mostly in a static, no flow, condition.  You may
> specify a zero bleed regulator if you are buying them in quantity.  But many
> regulators can't bleed because of the nature of the fluid it is regulating;
> toxic, flammable, oxidizer Etc.  There are a lot of tradeoffs in regulator
> design including zero flow pressure drift, flow range and pressure
> maintenance over a wide flow range.
> Did the regulator ever work without bleeding?  Does it leak when there is
> flow?  (try listening for that when you are using an impact wrench.)
> Carl
> 
> -----Original Message-----
> From: at-bounces at lists.antique-tractor.com
> [mailto:at-bounces at lists.antique-tractor.com] On Behalf Of Spencer Yost
> Sent: Saturday, January 20, 2018 4:12 PM
> To: at at lists.antique-tractor.com
> Subject: [AT] Tractor shop question
> 
> I have a tractor shop question. I put a new air pressure regulator on my air
> compressor, and it continually bleeds air . It's sort of like when you dial
> the pressure down and it has to bleed  air on the output side to bring the
> pressure down? Well it does this all the time. Is there such a thing as a
> continual bleed regulator? If so that seems like a really dumb idea.
> 
> Otherwise it acts perfectly. It keeps the pressure exactly right and steady,
> and if I dial the pressure all the way down to zero it does shut the air
> supply completely off.
> 
> 
> Of course I may have a defective regulator. And of course I just recycled
> the box and instructions.  I bought it about a year ago and just now getting
> around to installing it so I have no receipt nor am I even 100% sure where I
> got it.  All I remember is it was on sale (-;
> 
> Spencer Yost
> 
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