DEVILBISS GTI LEAKS AIR AOUT THE CAP

JC Daniel

Promoted Users
I used a Devilbiss GTI last week to spray sealer and cleaned it very good after, Today I was checking some of my guns and the GTI will not shut off air flow out of the cap. I can not find any solutions and was wandering if you guys have a fix?
 

AAE

Learner
If it's like the Prolite, there's a nut on the needle guide, just behind the trigger. Maybe that is too tight.
I don't know how you clean the guns, but, I use the aerosol cleaner. Let's you use a strong spray to knock particles loose and to squeeze into tight places.
 

JC Daniel

Promoted Users
I have not got it fixed yet, I am going to take it all apart and clean every part and see if that fixes it.
 

texasking

Promoted Users
I have not got it fixed yet, I am going to take it all apart and clean every part and see if that fixes it.
I would guess the u cup seal in the air valve is bad. DeVilbiss 190780 is the complete air valve body and should fix the problem. One on ebay for $30
 
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