Tuxing compressor

[Ozell]

Hi guys Have a question, I have a double cylinder Tuxing with auto stop and auto release however i am having a problem getting the psi pressure beyond 3000psi

could some one tell me what could be the problem. It start out working ok until it reach 3000 psi than it just hang there, I just put a new gauge on it and unhooked the auto shut off

wire check all connection for air leaks but still can't find the problem.

 

[Centercut]

Does it turn off at 3000 psi, or does it just stop increasing in pressure? Does it sound any different when it gets to 3000 psi? 

 

[Ozell]

No it do not turn off at 3000psi and there no sound different that I can tell, it will just go up to 3000psi and stay at that point and it looks like the pressure fall back to 2800psi.

 

[Centercut]

Without looking at it, it seems like the inlet check valve to the second stage is leaking back. You could check that by removing the tubing going to the second stage head, and pulling out the check valve (not sure if yours is on the inlet of the second stage head or outlet of the fist stage head...), Its just a spring poppet type valve. Clean it up, clean the seating surface, and lightly (lightly) grease with silicon grease.

 

[Ozell]

Thank you so much will try that now.

 

[Centercut]

Yes, I'd remove that tube at look at both ends where the check valve would be. It looks like a spring with a piece of metal at the end. Remove them, and clean out where they are seated leaving no lint or anything, Crystal clean. Then clean both check valves and springs, then lightly grease and reassemble. Normally I'd say its the blow out disc, but this compressor doesn't have one...

 

[Ozell]

Once again thanks and you are very smart when it comes to compressor also I have being reading your post for a long time so I trust your word.

 

[willy]

Sounds like the high puresser rings are getting tired?

 

[Ozell]

Here is an update on my tuxing compressor, I got in touch with Tuxing service because my compressor is just 2 weeks old any way here is what they told me.Hello , my dear friend , 
i am so sorry bring you inconvenience , 
you can replace two stage piston rings .
this is our video link : https://www.youtube.com/watch?v=LuOb0HW6bog

 

[Centercut]

That would be my second step after the check valves. Always try the easiest most likely solution first.

 

[Ozell]

I will update you guys after the work is done and thanks for your help.

 

[airgunfans]

Check out this video : https://www.youtube.com/watch?v=YjsBcKSVeGk&t=1155s At about 5:42, the check valve with broken O ring is shown. This is a Yong Heng but I believe the design of the Tuxing is very similar.

 

[willy]

It take's 4 rings for the high pressure side.I order 20 at a time.Their is a way to fix it in a pinch but people would laugh me off this site""

 

[willy]

http://"CIMG6821" "rings" "CIMG6820"

 

[Centercut]

@ozell, please remember if you do end up replacing the second stage pencil sized rings, do NOT use any lubricant at all when you reassemble that part.

 

[USAFANG6799]

@ozell, please remember if you do end up replacing the second stage pencil sized rings, do NOT use any lubricant at all when you reassemble that part.

Is that to make sure you don't get combustion or for other reasons?

 

[Centercut]

Yes, you are compressing the air entering the small pencil sized cylinder by about 30X. Any oil or lubricant at all can cause dieseling and also cause the small piston rings to :"gum up" very quickly... If replacing the first stage rings you would very lightly lube them with the same lubricant you use in the sump, since they are more like standard metal piston rings and the compression ration is only about 10X.

 

[gwalker1946]

got used tuxing or clone find no name on it it will go to 4500 psi then breaks to oring next to poppet valve why is that? tried different oring grades no luck