Paasche VL double action

Thanks for the responses guys.

I tightened up the tip, and thinned the paint more than I usually do. That seemed to do the trick, it doesn't pulse anymore, and I can control the paint flow without it spattering.

The only thing I have left to do, is find out how little I can thin the paint before it causes a problem. Right now, the mixture I've been using is a little too thin, and I can't get the coverage I want. I should be able to figure out a good formula when I get some time to play with it.

 

Thanks a lot for the help,

 

Mike

I used to use a VL. I had the problem with mine long ago and have also experianced with my Iwata. In both cases I was using very low pressure, very close, with thinned media (enamels). I found that thinning the paints further was the fix. I never had any spatter or anything, just like you guys. It would just stop flowing. Not even higher pressure fixed it. A few more drops of thinner always works for me.

Usually when you have a interruption or a sputter in the paint flow from an airbursh there is an air leak at the tip or the needle bearing.  On a VL use the wrench to tighten the tip a little more, if the problem continues you might have to replace the needle bearing.

Bgrigg wrote:

Badger 100 series can pulse if the head washer gets squished or damaged, but I don't think the VL has an equivilent, at least I don't see one while looking at the Parts List (courtesy of Dixie Art). Perhaps it's a case of a improperly cleaned or damaged tip (cone) where it sits in the main body?

I actually replaced both the needle and the tip and had the same problem. Now- the VL I have is fairly worn, so there may be some sealing issues, but nothing that is appearent as far as parts that you can replace.

Darndest thing, thing though. It sprays very nice when it's working right. The trigger control is better than the Aztek.

Badger 100 series can pulse if the head washer gets squished or damaged, but I don't think the VL has an equivilent, at least I don't see one while looking at the Parts List (courtesy of Dixie Art). Perhaps it's a case of a improperly cleaned or damaged tip (cone) where it sits in the main body?

I've had the same problem with my Paasche VL. I've tried thinning, changing air pressures- lots of stuff. Same results- pulsing, and it's not timed with the compressor pulses.

I don't know what the problem is, but my Aztek doesn't have the problem. Wonder what it is....

I'm using a compressor. It's an older one and I have no clue the make or model, but I do have a regulator and moisture trap on it. Also, it doesn't pulse when I am spraying larger amounts of paint, even with full airflow.

Thanks for the reply,

Mike

What kind of air source are you using? Diaphragm compressors can pulse and I've found they seem to pulse more when the AB is running wide "open". A pressure regulator can help. So can using a tank to settle out the air flow before the AB.