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Model D3274 Gravity Feed Spray Gun w/Regulator
-13-
Symptom Possible Cause Possible Solution
Excessive over-
spray.
1. Fluid pressure too high.
2. Gun is too far from surface.
3. Spraying too fast.
1. Reduce fluid pressure.
2. Keep gun at recommended
distance.
3. Slow down and maintain
consistent, even parallel
stroke.
Unable to control
spray fan.
1. Pattern adjustment screw is
not seating properly.
2. Atomizing cap is loose.
1. Clean or replace.
2. Tighten atomizing cap.
Runs and sags.
1. Spraying too slowly.
2. Gun is too close to surface.
3. Damaged seal.
1. Adjust spraying speed.
2. Adjust spraying distance to
6–8" from surface.
3. Replace damaged seals.
Material leaks from
cup.
1. Cap not secure.
2. Cup not tight on gun body.
3. Leaking from cap vent hole.
1. Tighten.
2. Tighten.
3. Hold gun upright do not
tilt.
Material leaks from
gun.
1. Fluid tip loose.
2. Dry or damaged seals.
3. Excessive pressure.
1. Tighten.
2. Replace seals.
3. Reduce pressure.
Thick dimpled fin-
ish aka "Orange
Peel."
1. Holding gun too close to sur-
face.
2. Inlet air pressure too low.
3. Material not properly mixed.
4. Surface is dirty or oily.
1. Spray at recommended dis-
tance.
2. Check inlet air pressure.
3. Follow manufacturer's
instructions.
4. More surface prep is
required.
Dry Spray. 1. Inlet air pressure too high.
2. Gun too far from surface.
3. Gun stroke too fast.
1. Lower inlet air pressure.
2. Keep gun at recommended
distance.
3. Slow down and maintain
consistent even parallel
stroke.
Gun leaks from
fluid tip.
1. Debris will not let the needle
seat with the uid tip.
1. Clean or replace both.
Contaminated
paint.
1. Water or oil in the air line. 1. Install an in-line air lter.
2. Replace air line.
3. Spray gun filter is missing.