Question about Testors Aztek A320 Workhorse Airbrush Kit - TESA3205

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Almost no air will come out of brush, very hard to blow through line

Tried to use this (this has never been used prior to this) and was unable to get it to spray. Then I noticed that even though my regulator is set @ 20 psi it was building up to 50, with very little airflow coming out of the brush. Tried to blow through the hose and it is very difficult. There is a small white piece inserted in the hose where it connects to the air sours that has 2 smallish holes on the side. Where should I look next?

Posted by Anonymous on

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Do solve problem by elimination:

1 disconnect pressure regulator from supply, start compressor and check for air flow, if flow is good, switch off
2. connect pressure regulator and start compressor, if it is equipped with automatic stop/start check cut off by closing valve in full, if it is without automatic stop/start then open slowly valve and check for air flow, if it increases - no problem there either, switch off
3. connect your hose to the outlet and switch compressor on, you should have similar pressure on the end of the hose as it was after regulator. if pressure is much lower - check for blockage in the hose, maybe gasket or something in the tube, cheap and nasty hoses have tendency to "k i n k" (this common english word describing twist in hose preventing liquid or gas flow is regarded as profanity by fixya - stupidity is without borders...) and puncture, clean or replace the hose, i use on some of my airbrushes these little lines from surgery (blood transfusion, oxygen, aquarium air, they are perfect! and - much cheaper - mostly for free than special airbrush lines).
4. check flow on airbrush, on fully open valve should be not much less than it was coming from regulator, if there is little or no flow, increase flow on the piece, it have usually depending on the type needle regulator on the valve.

hope this short instruction will help you, enjoy your art and if you find it useful, feel free to vote for it...

Posted on Dec 22, 2014

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