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Sick Air Compressor


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#16 LilysDad ONLINE  

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Posted April 18, 2015 - 12:12 PM

Hmmmmmm. . . .           I tried it again today. The unloader would bleed off until around 60lbs. and then try unsuccessfully to start. If I bleed it down manually to 35lbs it would start okay.  Check valve?



#17 olcowhand ONLINE  

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Posted April 18, 2015 - 12:19 PM

Hmmmmmm. . . .           I tried it again today. The unloader would bleed off until around 60lbs. and then try unsuccessfully to start. If I bleed it down manually to 35lbs it would start okay.  Check valve?

 

Yep, and many times a good cleaning gets them sealing proper.


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#18 ol' stonebreaker ONLINE  

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Posted April 18, 2015 - 03:37 PM

  Sounds like you found the problem. The unloader should only bleed air off for 10 sec at most. Check valves are usually easy to remove w/ a deep socket. You'll probably find a small piece of crud stuck in the valve.

  I'm gonna guess the check valve is behind the brass hex head plug in pic #3. It is on the main line where it connects to the tank from the pump and the unloader line connects to it.

                                    Mike


Edited by ol' stonebreaker, April 18, 2015 - 03:42 PM.

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#19 LilysDad ONLINE  

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Posted April 18, 2015 - 04:40 PM

Ah hah! I told you folks it was the check valve, didn't I?!!

 

There is a spring with a silicone rubber valve inside. One coil of the spring broke off and slightly damaged the rubber. I'll have to see if I can find a suitable replacement locally.

 

Thanks all for the education!


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#20 ol' stonebreaker ONLINE  

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Posted April 18, 2015 - 05:06 PM

  Glad it's a simple fix!

                                    Mike


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#21 LilysDad ONLINE  

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Posted April 18, 2015 - 05:09 PM

Yeah, about as simple as trigonometry.


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#22 ol' stonebreaker ONLINE  

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Posted April 18, 2015 - 08:54 PM

If it doesn't cost much if any $ then I call it a simple fix!! That's what we're all here for is to save each other money among other things.
Mike
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