Troubleshooting - Grizzly H7673 Instruction Manual

Symptom
Fluttering or
Spitting spray.
Uneven top or bot-
tom pattern.
Right or left arc
pattern.
Heavy deposit of
material in center.
Narrow center pat-
tern.
No spray output.
Model H7673 HVLP Spray Gun

Troubleshooting

Possible Cause
1. Dry or worn fluid tip seat per-
mits air to seep into fluid pas-
sage.
2. Material level too low.
3. Fluid tip or strainer obstructed.
4. Dry needle packing.
1. Atomizing cap holes are
obstructed.
2. Build-up on top or bottom of
fluid tip.
3. Build-up on atomizing cap is
on needle seat.
1. Left or right side horn holes
are plugged.
2. Build-up on left or right side of
fluid tip.
3. Build-up of material inside
atomizing cap.
1. The material flow exceeds the
atomizing cap capacity.
2. Inlet air pressure is too low.
3. Material is too thick.
1. Volume control turned in too
far.
2. Inlet air pressure too high.
3. Fluid pressure is too low.
4. Material is too thin.
1. No pressure at gun.
2. Fluid passages dirty.
3. Fluid control closed.
4. Out of paint.
Solution
1. Tighten fluid tip or replace
seat with new one.
2. Add material.
3. Clean
4. Lubricate needle.
1. Clear holes.
2. Clean.
3. Clean.
1. Clear holes.
2. Clean.
3. Clean.
1. Lower fluid flow.
2. Increase inlet air pressure.
3. Thin material.
1. Increase volume.
2. Reduce inlet air pressure.
3. Increase fluid pressure.
4. Adjust material.
1. Check air supply.
2. Clean gun, remove any
obstructions.
3. Open.
4. Refill.
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