Subject: Re: [Shop-talk] Air compressor issue

From: Jeff Scarbrough <[email-masked]>
Date: Tue, 11 Jul 2023 16:38:27 -0400

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I wonder if the starting (pressure) switch is sticking as it heats up.
This is based on the fact that it works cold, but has to drop lower and
lower as it warms up to restart.

I would try using it as normal, and once the restart is delayed (maybe tank
is at 30 or 40 psi) rap the pressure switch with the handle of a
substantial screwdriver.

-- Jeff

On Tue, Jul 11, 2023, 16:31 Mike Rambour <[email-masked]> wrote:

>   Hi,
>
> Having a problem with my 5hp Champion Advantage compressor.  I called
> TPTools where I purchased it in 2001 and they were useless, they want to
> send out a service rep to fix it ($$$).
>
> The issue its having is first 2 or 3 cycles of the day when its cold, it
> cycles normally, comes on at around 120-125PSI and shuts off at 175PSI,
> after those 2 or 3 cycles it only comes back on at around 15PSI or even
> lower and it does this all day until next day.  I only work in the
> garage on weekends but I am in the bead blasting stage of my restoration
> so using the compressor heavily those 2 days a week.
>
>   They said turn it off and drain all the air, then cycle it back on and
> listen for the "Hiss" (their word) when the compressor shuts off and
> listen for the hiss and keep doing that until the compressor does not
> cycle anymore, did I hear the hiss or not, did the motor hum when trying
> to restart ?   If that is the case the unloader valve is bad.  I do
> normally hear the hiss, I don't pay attention EVERY time though and the
> motor does not hum.
>
>   Isn't it just a pressure valve ? this thing is over 20 years old and
> first time giving me issues.  But they want to send out a tech to
> diagnose and fix the issue meaning having to take a day off work and
> spend $$$ when it should be simple. I do agree with the guy that I don't
> want to throw money at the problem and swap random parts but I don't
> need a tech, just how to diag which part is the issue.   I am going to
> be blasting a lot over the weekend.
>
>      mike
>
> --
> As he stared at her ample bosom, he daydreamed of the dual Skinners Union
> carburetors in his vintage Singer, highly functional yet pleasingly formed,
> perched prominently on top of the intake manifold, aching for experienced
> hands, the small knurled caps of the oil dampeners begging to be inspected
> and adjusted as described in chapter seven of the Singer shop manual.
>
> _______________________________________________
>
> [email-masked]
> Donate: http://www.team.net/donate.html
> Suggested annual donation  $12.96
> Archive: http://www.team.net/pipermail/shop-talk
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<div dir=3D"auto">I wonder if the starting (pressure) switch is sticking as=
 it heats up.=C2=A0 This is based on the fact that it works cold, but has t=
o drop lower and lower as it warms up to restart.=C2=A0=C2=A0<div dir=3D"au=
to"><br></div><div dir=3D"auto">I would try using it as normal, and once th=
e restart is delayed (maybe tank is at 30 or 40 psi) rap the pressure switc=
h with the handle of a substantial screwdriver.</div><div dir=3D"auto"><br>=
</div><div dir=3D"auto">-- Jeff</div></div><br><div class=3D"gmail_quote"><=
div dir=3D"ltr" class=3D"gmail_attr">On Tue, Jul 11, 2023, 16:31 Mike Rambo=
ur &lt;<a href=3D"mailto:[email-masked]">[email-masked]</a>&gt;=
 wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8=
ex;border-left:1px #ccc solid;padding-left:1ex">=C2=A0=C2=A0Hi,<br>
<br>
Having a problem with my 5hp Champion Advantage compressor.=C2=A0 I called =
<br>
TPTools where I purchased it in 2001 and they were useless, they want to <b=
r>
send out a service rep to fix it ($$$).<br>
<br>
The issue its having is first 2 or 3 cycles of the day when its cold, it <b=
r>
cycles normally, comes on at around 120-125PSI and shuts off at 175PSI, <br=
after those 2 or 3 cycles it only comes back on at around 15PSI or even <br=
lower and it does this all day until next day.=C2=A0 I only work in the <br=
garage on weekends but I am in the bead blasting stage of my restoration <b=
r>
so using the compressor heavily those 2 days a week.<br>
<br>
=C2=A0=C2=A0They said turn it off and drain all the air, then cycle it back=
 on and <br>
listen for the &quot;Hiss&quot; (their word) when the compressor shuts off =
and <br>
listen for the hiss and keep doing that until the compressor does not <br>
cycle anymore, did I hear the hiss or not, did the motor hum when trying <b=
r>
to restart ?=C2=A0=C2=A0 If that is the case the unloader valve is bad.=C2=
=A0 I do <br>
normally hear the hiss, I don&#39;t pay attention EVERY time though and the=
 <br>
motor does not hum.<br>
<br>
=C2=A0=C2=A0Isn&#39;t it just a pressure valve ? this thing is over 20 year=
s old and <br>
first time giving me issues.=C2=A0 But they want to send out a tech to <br>
diagnose and fix the issue meaning having to take a day off work and <br>
spend $$$ when it should be simple. I do agree with the guy that I don&#39;=
t <br>
want to throw money at the problem and swap random parts but I don&#39;t <b=
r>
need a tech, just how to diag which part is the issue.=C2=A0=C2=A0 I am goi=
ng to <br>
be blasting a lot over the weekend.<br>
<br>
=C2=A0=C2=A0=C2=A0=C2=A0 mike<br>
<br>
-- <br>
As he stared at her ample bosom, he daydreamed of the dual Skinners Union<b=
r>
carburetors in his vintage Singer, highly functional yet pleasingly formed,=
<br>
perched prominently on top of the intake manifold, aching for experienced<b=
r>
hands, the small knurled caps of the oil dampeners begging to be inspected<=
br>
and adjusted as described in chapter seven of the Singer shop manual.<br>
<br>
_______________________________________________<br>
<br>
<a href=3D"mailto:[email-masked]" target=3D"_blank" rel=3D"norefe=
rrer">[email-masked]</a><br>
errer" target=3D"_blank">http://www.team.net/donate.html</a><br>
Archive: <a href=3D"http://www.team.net/pipermail/shop-talk" rel=3D"norefer=
rer noreferrer" target=3D"_blank">http://www.team.net/pipermail/shop-talk</=
a> <a href=3D"http://autox.team.net/archive" rel=3D"noreferrer noreferrer" =
target=3D"_blank">http://autox.team.net/archive</a><br>
<br>
alk/[email-masked]" rel=3D"noreferrer noreferrer" target=3D"_blank">ht=
tp://autox.team.net/mailman/options/shop-talk/[email-masked]</a><br>
<br>
</blockquote></div>

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From: DAVID MASSEY <[email-masked]>
Date: Tue, 11 Jul 2023 20:39:05 +0000 (UTC)

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It could be something clogging the port to the pressure switch holding resi=
dual pressure there in a sense "faking" it out.=C2=A0 I'd try taking the sw=
itch off and some of the associated plumbing and blow it out.=C2=A0 Maybe a=
 new switch is in your future.

Dave=20

=20

    On Tuesday, July 11, 2023 at 03:30:16 PM CDT, Mike Rambour <lists@dinos=
pider.com> wrote: =20
=20
  =C2=A0Hi,

Having a problem with my 5hp Champion Advantage compressor.=C2=A0 I called=
=20
TPTools where I purchased it in 2001 and they were useless, they want to=20
send out a service rep to fix it ($$$).

The issue its having is first 2 or 3 cycles of the day when its cold, it=20
cycles normally, comes on at around 120-125PSI and shuts off at 175PSI,=20
after those 2 or 3 cycles it only comes back on at around 15PSI or even=20
lower and it does this all day until next day.=C2=A0 I only work in the=20
garage on weekends but I am in the bead blasting stage of my restoration=20
so using the compressor heavily those 2 days a week.

 =C2=A0They said turn it off and drain all the air, then cycle it back on a=
nd=20
listen for the "Hiss" (their word) when the compressor shuts off and=20
listen for the hiss and keep doing that until the compressor does not=20
cycle anymore, did I hear the hiss or not, did the motor hum when trying=20
to restart ?=C2=A0=C2=A0 If that is the case the unloader valve is bad.=C2=
=A0 I do=20
normally hear the hiss, I don't pay attention EVERY time though and the=20
motor does not hum.

 =C2=A0Isn't it just a pressure valve ? this thing is over 20 years old and=
=20
first time giving me issues.=C2=A0 But they want to send out a tech to=20
diagnose and fix the issue meaning having to take a day off work and=20
spend $$$ when it should be simple. I do agree with the guy that I don't=20
want to throw money at the problem and swap random parts but I don't=20
need a tech, just how to diag which part is the issue.=C2=A0=C2=A0 I am goi=
ng to=20
be blasting a lot over the weekend.

 =C2=A0=C2=A0=C2=A0 mike

--=20

[email-masked]
Archive: http://www.team.net/pipermail/shop-talk http://autox.team.net/arch=
ive

[email-masked]

 =20
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<html><head></head><body><div class=3D"ydp6eff45ceyahoo-style-wrap" style=
=3D"font-family:Arial, Helvetica, sans-serif;font-size:16px;"><div><div dir=
=3D"ltr" data-setdir=3D"false">It could be something clogging the port to t=
he pressure switch holding residual pressure there in a sense "faking" it o=
ut.&nbsp; I'd try taking the switch off and some of the associated plumbing=
 and blow it out.&nbsp; Maybe a new switch is in your future.<br></div><div=
><br></div><div class=3D"ydp6eff45cesignature"><div style=3D"color: black; =
font-style: normal; font-weight: normal; font-stretch: normal; font-size: 1=
2pt; line-height: normal; font-family: Arial, Helvetica, sans-serif; font-s=
ize-adjust: none;"><div style=3D"color: black; font-style: normal; font-wei=
ght: normal; font-stretch: normal; font-size: 12pt; line-height: normal; fo=
nt-family: Arial, Helvetica, sans-serif; font-size-adjust: none;"><div><fon=
t size=3D"4">Dave <br></font></div><div><span style=3D"font-size:10.0pt;fon=
t-family:sans-serif;color:black;"><br></span></div><br></div></div></div></=
div>
        <div><br></div><div><br></div>
       =20
        </div><div id=3D"ydpcfbfee96yahoo_quoted_9973980079" class=3D"ydpcf=
bfee96yahoo_quoted">
            <div style=3D"font-family:'Helvetica Neue', Helvetica, Arial, s=
ans-serif;font-size:13px;color:#26282a;">
               =20
                <div>
                    On Tuesday, July 11, 2023 at 03:30:16 PM CDT, Mike Ramb=
our &lt;[email-masked]&gt; wrote:
                </div>
                <div><br></div>
                <div><br></div>
                <div><div dir=3D"ltr"> &nbsp;Hi,<br></div><div dir=3D"ltr">=
<br></div><div dir=3D"ltr">Having a problem with my 5hp Champion Advantage =
compressor.&nbsp; I called <br></div><div dir=3D"ltr">TPTools where I purch=
ased it in 2001 and they were useless, they want to <br></div><div dir=3D"l=
tr">send out a service rep to fix it ($$$).<br></div><div dir=3D"ltr"><br><=
/div><div dir=3D"ltr">The issue its having is first 2 or 3 cycles of the da=
y when its cold, it <br></div><div dir=3D"ltr">cycles normally, comes on at=
 around 120-125PSI and shuts off at 175PSI, <br></div><div dir=3D"ltr">afte=
r those 2 or 3 cycles it only comes back on at around 15PSI or even <br></d=
iv><div dir=3D"ltr">lower and it does this all day until next day.&nbsp; I =
only work in the <br></div><div dir=3D"ltr">garage on weekends but I am in =
the bead blasting stage of my restoration <br></div><div dir=3D"ltr">so usi=
ng the compressor heavily those 2 days a week.<br></div><div dir=3D"ltr"><b=
r></div><div dir=3D"ltr"> &nbsp;They said turn it off and drain all the air=
, then cycle it back on and <br></div><div dir=3D"ltr">listen for the "Hiss=
" (their word) when the compressor shuts off and <br></div><div dir=3D"ltr"=
>listen for the hiss and keep doing that until the compressor does not <br>=
</div><div dir=3D"ltr">cycle anymore, did I hear the hiss or not, did the m=
otor hum when trying <br></div><div dir=3D"ltr">to restart ?&nbsp;&nbsp; If=
 that is the case the unloader valve is bad.&nbsp; I do <br></div><div dir=
=3D"ltr">normally hear the hiss, I don't pay attention EVERY time though an=
d the <br></div><div dir=3D"ltr">motor does not hum.<br></div><div dir=3D"l=
tr"><br></div><div dir=3D"ltr"> &nbsp;Isn't it just a pressure valve ? this=
 thing is over 20 years old and <br></div><div dir=3D"ltr">first time givin=
g me issues.&nbsp; But they want to send out a tech to <br></div><div dir=
=3D"ltr">diagnose and fix the issue meaning having to take a day off work a=
nd <br></div><div dir=3D"ltr">spend $$$ when it should be simple. I do agre=
e with the guy that I don't <br></div><div dir=3D"ltr">want to throw money =
at the problem and swap random parts but I don't <br></div><div dir=3D"ltr"=
>need a tech, just how to diag which part is the issue.&nbsp;&nbsp; I am go=
ing to <br></div><div dir=3D"ltr">be blasting a lot over the weekend.<br></=
div><div dir=3D"ltr"><br></div><div dir=3D"ltr"> &nbsp;&nbsp;&nbsp; mike<br=
></div><div dir=3D"ltr"><br></div><div dir=3D"ltr">-- <br></div><div dir=3D=
"ltr">As he stared at her ample bosom, he daydreamed of the dual Skinners U=
nion<br></div><div dir=3D"ltr">carburetors in his vintage Singer, highly fu=
nctional yet pleasingly formed,<br></div><div dir=3D"ltr">perched prominent=
ly on top of the intake manifold, aching for experienced<br></div><div dir=
=3D"ltr">hands, the small knurled caps of the oil dampeners begging to be i=
nspected<br></div><div dir=3D"ltr">and adjusted as described in chapter sev=
en of the Singer shop manual.<br></div><div dir=3D"ltr"><br></div><div dir=
=3D"ltr">_______________________________________________<br></div><div dir=
=3D"ltr"><br></div><div dir=3D"ltr"><a href=3D"mailto:[email-masked].=
net" rel=3D"nofollow" target=3D"_blank">[email-masked]</a><br></d=
iv><div dir=3D"ltr">Donate: <a href=3D"http://www.team.net/donate.html" rel=
=3D"nofollow" target=3D"_blank">http://www.team.net/donate.html</a><br></di=
v><div dir=3D"ltr">Suggested annual donation&nbsp; $12.96<br></div><div dir=
=3D"ltr">Archive: <a href=3D"http://www.team.net/pipermail/shop-talk" rel=
=3D"nofollow" target=3D"_blank">http://www.team.net/pipermail/shop-talk</a>=
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iv dir=3D"ltr">Unsubscribe/Manage: <a href=3D"http://autox.team.net/mailman=
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[email-masked]

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From: Pat Horne <[email-masked]>
Date: Tue, 11 Jul 2023 15:48:16 -0500

Mike, I assume from your description that you shut the compressor off during the week when you are not using it & the pressure bleeds of over the week & does a cold start when you are ready to work. 

I think I’d start by removing the cover from the pressure switch & making sure there isn’t some kind of nest or insect in there. Next, since the compressor is older, I’d clean the contacts on the switch. It can’t hurt unless you try to do it with power on! If it still behaves the same, with the pressure below about 100, lightly tap the switch with an insulated handle to see if something is sticking. If so, either clean & lube it, or just replace it, they’re not expensive. How does the switch measure pressure, internally via a pipe fitting or via a small line going to the tank? It wouldn’t hurt to pull the switch & see that there isn’t junk in the line. 

Good luck. 

Peace, Pat

Pat Horne 
We support Habitat for Humanity

On Jul 11, 2023, at 3:33 PM, Mike Rambour <[email-masked]> wrote:

 Hi,

Having a problem with my 5hp Champion Advantage compressor.  I called TPTools where I purchased it in 2001 and they were useless, they want to send out a service rep to fix it ($$$).

The issue its having is first 2 or 3 cycles of the day when its cold, it cycles normally, comes on at around 120-125PSI and shuts off at 175PSI, after those 2 or 3 cycles it only comes back on at around 15PSI or even lower and it does this all day until next day.  I only work in the garage on weekends but I am in the bead blasting stage of my restoration so using the compressor heavily those 2 days a week.

 They said turn it off and drain all the air, then cycle it back on and listen for the "Hiss" (their word) when the compressor shuts off and listen for the hiss and keep doing that until the compressor does not cycle anymore, did I hear the hiss or not, did the motor hum when trying to restart ?   If that is the case the unloader valve is bad.  I do normally hear the hiss, I don't pay attention EVERY time though and the motor does not hum.

 Isn't it just a pressure valve ? this thing is over 20 years old and first time giving me issues.  But they want to send out a tech to diagnose and fix the issue meaning having to take a day off work and spend $$$ when it should be simple. I do agree with the guy that I don't want to throw money at the problem and swap random parts but I don't need a tech, just how to diag which part is the issue.   I am going to be blasting a lot over the weekend.

    mike

[email-masked]

Unsubscribe/Manage: http://autox.team.net/mailman/options/shop-talk/[email-masked]

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