If your trigger or needle is not moving easily or feels “sticky” you may need a small drop of SuperLube to lubricate the o-rings. SuperLube is a non-toxic product that does not contain petrolium or silicone additives. It will not fisheye or react with any water, lacquer or enamel-based paints.
Needle O-Ring Lubrication:
Put a tiny drop of SuperLube where the taper of the needle starts. With a towel, gently wipe the SuperLube towards the sharp needle point and replace the needle the into airbrush.
Trigger (Piston Packing) O-Ring Lubrication:
Put a tiny drop of SuperLube on the blunt end of the needle. Insert blunt end through the trigger opening and into the piston packing hole. Move needle up and down and in a circular motion to lubricate the o-ring.