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Model H8116 Spray Gun -15-
Symptom Possible Cause Solution
Excessive over-
spray.
1. Fluid pressure too high.
2. Gun is too far from surface.
1. Reduce fluid pressure.
2. Keep gun at recommended
distance.
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. Damaged seal. 1. 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 finish
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.
1. Lower inlet air pressure.
2. Keep gun at recommended
distance.
Gun leaks from
fluid tip.
1. Debris will not let the needle
seat with the fluid tip.
1. Clean or replace both.
Bubbles and fish
-
eyes in painted
surface.
1. Incorrect surface preparation.
2. Water or oil in the air line.
1. Prepare surface correctly.
2. Install an in-line air filter or
replace air line.