Iwata revolution airbrush not spraying whatsoever, please help

Hayden

It would seem that the air valve is not being activated when depressing the trigger. Possibly the valve has failed, even more likely is paint/cleaner material being allowed to enter the valve while performing maintenance. If foreign material is allowed to enter the valve and dries hard, the valve guts can be stuck closed and you're out of biz.

I don't know if it's possible, but if your trigger is a two part with small elbow near base for flexibility, possibly you don't have the lower part properly positioned on top of the air valve stem. They can be a bit tricky when re-assembling, check to ensure the trigger base is on top of the stem, when correct you'll feel the spring resistance of the valve when depressing the trigger.

If incorrectly placed, the trigger would have a "limp" feeling with no resistance. That's maybe a bit of a stretch, I'm not sure that scenario is even possible, but worth a check. 

I'd suggest you have a look at your Iwata manual, see if they give instructions on removing the valve. If not, go to "Don's Airbrush" website and have a look there, he has a couple of Iwata examples and you can likely get some helpful info. Once you get the valve out, you can check to see the cleanliness state.

If it's just a bit mucked up, you might be able to clean it up and use a TINY bit of lube to free the action. I've used a very minute film of coconut oil on the o rings of air valves before, to restore freedom of movement when they got sticky with age.

Best of luck with it, please let us know how it goes for you.

Patrick 

Hi Hayden,

I have a Revolution CR but have not had your problems. It does, as Patrick says, sound like either the trigger is not properly seated or the air valve is stuck. The air valve is not difficult to remove but does require small tools or inventiveness, Don's site should be of help and here's a direct link to the Iwata Revoluion on his site.  HTH

https://sites.google.com/site/donsairbrushtips/iwata-revolution-hp-cr

Thanks alot, I took the front off and the nozzle fell out broken in half with the thread still in the airbrush, I will have to take it to a repair shop, thanks for the help again

Hayden Babineau

Thanks alot, I took the front off and the nozzle fell out broken in half with the thread still in the airbrush, I will have to take it to a repair shop, thanks for the help again

That's a fairly common problem with those tiny threaded nozzles.  Some people have had good luck unscrewing the broken off part with the point of a hobby knife.  A needle file with a triangular cross section might also work.  If you apply a little bees wax or Chapstick on the threads of the new nozzle, barely snug should be tight enough.

Don