whackett Posted October 2, 2015 Report Share Posted October 2, 2015 I have a new Iwata and have noticed that as soon as I push the trigger down paint is sprayed out, it dosen't wait for the trigger to be pulled back. Is there a way to adjust this as I thought just air was supposed to come out when trigger was depressed, and then paint would come out when trigger is pulled back with air coming out. Thanks for any ones help. Quote Link to comment Share on other sites More sharing options...
mark poulson Posted October 3, 2015 Report Share Posted October 3, 2015 From what I read online, that air brush is a single action brush, so you can only spray the air and the paint at the same time. A dual action brush has a dual action trigger that controls the air and the paint flow independently. If you put an inline air valve into the base of the brush, where the hose attaches, you can cut down the amount of air, but the paint flow can't be adjusted. It's pulled along by the air flow, so more air, more paint. Quote Link to comment Share on other sites More sharing options...
whackett Posted October 3, 2015 Author Report Share Posted October 3, 2015 This is the Revolution model airbrush it is dual action. I just found a video that says if the needle is not seated properly in the nozzle it won't spray right. Well there was panit in the nozzle and once I got it cleaned out it's working right. Sorry for the misinformation and thanks for the help. Quote Link to comment Share on other sites More sharing options...
BobP Posted October 3, 2015 Report Share Posted October 3, 2015 I have a couple of Iwatas but am not familiar with a HP-BR. Your assumption on how the trigger works is right. If it is a double action airbrush like most Iwatas, sounds like the needle is not seated forward into the tip of the brush as it is supposed to be. You don't want to apply a lot of force getting the needle into the tip because Iwata brushes have a tiny nozzle that the needle seats into and you can split it if too much force is applied. But using moderate force is OK. Loosen the needle nut on the back of the brush and see if the needle is fully seated into the tip. If you take off the front spray shield, you should see the needle sticking out of the nozzle and there should be a tight fit. If not, there may be an obstruction in the tip of the brush or you may have a faulty unit (which is unusual for Iwata). Quote Link to comment Share on other sites More sharing options...
BobP Posted October 3, 2015 Report Share Posted October 3, 2015 Great, problem solved. I have the same airbrush and it has been my "go to" brush for painting crankbaits. Good product! Quote Link to comment Share on other sites More sharing options...
whackett Posted October 3, 2015 Author Report Share Posted October 3, 2015 Thanks for the advice BobP. As a matter of fact I bought this brush on your advice and up till now its been a great brush. Quote Link to comment Share on other sites More sharing options...
whackett Posted October 4, 2015 Author Report Share Posted October 4, 2015 Well the brush is working correctly again. One tiny speck of paint in the nozzle kept the needle from sitting right and it wouldn't work. Now after a good cleaning of the nozzle and she's good to go. Quote Link to comment Share on other sites More sharing options...
Cougarftd Posted October 4, 2015 Report Share Posted October 4, 2015 Needle is not fully seated Quote Link to comment Share on other sites More sharing options...
RayburnGuy Posted October 4, 2015 Report Share Posted October 4, 2015 When doing your final cleanup after a painting session hold your finger over the nozzle like your going to backflush and press down on the trigger without pulling back on the needle. If you see bubbles in the bowl your airbrush is not clean and the needle is not fully seated. Allowing this to build up over time makes things progressively worse. Ben 1 Quote Link to comment Share on other sites More sharing options...
