Grizzly H7673 Instruction Manual page 16

Symptom
Excessive over-
spray.
Unable to control
spray fan.
Runs and sags.
Material leaks from
cup.
Material leaks from
gun.
Thick dimpled finish
aka "Orange Peel."
Dry Spray.
Gun leaks from
fluid tip.
Contaminated
paint.
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Possible Cause
1. Fluid pressure too high.
2. Gun is too far from surface.
3. Spraying too fast.
1. Pattern adjustment screw is
not seating properly.
2. Atomizing cap is loose.
1. Damaged seal.
1. Cap not secure.
2. Cup not tight on gun body.
3. Leaking from cap vent hole.
1. Fluid tip loose.
2. Dry or damaged seals.
3. Excessive pressure.
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. Inlet air pressure too high.
2. Gun too far from surface.
3. Gun stroke too fast.
1. Debris will not let the needle
seat with the fluid tip.
1. Water or oil in the air line.
Solution
1. Reduce fluid pressure.
2. Keep gun at recommended
distance.
3. Slow down and maintain
consistent, even parallel
stroke.
1. Clean or replace.
2. Tighten atomizing cap.
1. Replace damaged seals.
1. Tighten.
2. Tighten.
3. Hold gun upright do not tilt.
1. Tighten.
2. Replace seals.
3. Reduce pressure.
1. Spray at recommended dis-
tance.
2. Check inlet air pressure.
3. Follow manufacturer's
instructions.
4. More surface prep is
required.
1. Lower inlet air pressure.
2. Keep gun at recommended
distance.
3. Slow down and maintain
consistent even parallel
stroke.
1. Clean or replace both.
1. Install an in-line air filter.
2. Replace air line.
Model H7673 HVLP Spray Gun