Lincoln Electric Plasma Cutter, Pro - Cut 25 Logo

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Posted on Nov 11, 2009
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When air is hooked up it blows the air regulator and all the air blows out valve very little gets to gun.red safety light comes on on front of machine and it will not work

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Ned C Cook

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  • Lincoln Master 3,433 Answers
  • Posted on Nov 12, 2009
Ned C Cook
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Air pressure should be no more than 90#s. If regulator cannot handle at least 125#s . Get a new regulater. Sounds like this regulator has a blown diaphram.

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Iwata eclipse G6 airbrush gun - no paint flow, bubbles forming in gravity feed bottle.

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symptom indicate that needle is closing the nozzle and not retracting, gun need cleaning! or adjustment - seem like both...

remove paint from the feeder, remove feeder bottle from the gun body, clean it well with paint stripper and then solvent/water allow it to dry
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put it back together and check if it works correctly, if you have any flow from the front - fill about 1/3 of the tank with paint stripper and then spray it to the sink or whatever other safe place. do not forget to wear safety mask, goggles and gloves! paint stripper will eat through your skin! if you splash yourself, have few spoon of vinegar mixed with 2pints (1 liter) of water and this solution will deactivate paint stripper! SAFETY FIRST!

if gun still do not work - you need to strip needle assembly and clean it correctly, put your gun on the table on butcher paper, remove screw holding needle on the back (watch for the spring!) put whole assembly on the paper in the order in which you removed it,
clean needle and needle seat, lightly grease it with vaseline and in reverse order put it back together.

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very bottom screw - this close to the airhose, it regulates volume of the air to the gun, you very rarely need to adjust that one, you increase volume with haevy paint and decrease it with light paints
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i would suggest fill the bottle with water and put some butchers paper on the wall and experiment what is what and what pattern is most suitable for your use.

hope this little info will help you solve your problem, it is good you give the model, it will be better if you provide as well what medium you use, was it acrylic, oil, water based? all of them behave little bit differently in airgun...

please do not hesitate to leave your opinion and points... thanx!
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Sometimes the air regulator will limit the air volume and pressure when drawing a large quantity of air out of the tank. The regulator was most likely designed for nailing which has very little demand. For filling auto tires you may have to bypass the regulator. If your compressor has a safety valve, with 1/4 male pipe threads, remove the safety valve and install a nipple and tee fitting (let out all the air from the tank before removing the safety valve by pulling on the ring). Reinstall safety valve on one port and a quick connect on the other. Now you will have access to full tank pressure without the restriction of the regulator when needed. Good luck
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