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Troubleshooting
Symptom | Possible Cause | Solution | ||||||||||
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Fluttering or spitting | 1. Dry or worn fluid tip seat per- | 1. | Tighten fluid tip or replace | |||||||||
spray. |
| mits air to seep into fluid pas- |
| seat with new one. | ||||||||
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| sage. |
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| 2. | Material level too low. | 2. | Add material. |
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| 3. | Fluid tip or filter obstructed. | 3. | Clean |
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| 4. | Dry needle packing. | 4. | Lubricate needle. |
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Uneven top or bot- | 1. Atomizing cap holes are | 1. | Clear holes. | |||||||||
tom pattern. |
| obstructed. |
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| 2. | 2. | Clean. | |
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| fluid tip. |
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| 3. | 3. | Clean. | |
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| on needle seat. |
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Right or left arc | 1. Left or right side horn holes | 1. | Clear holes. | |||||||||
pattern. |
| are plugged. |
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| 2. | 2. | Clean. | |
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| fluid tip. |
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| 3. | 3. Clean. | ||
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| atomizing cap. |
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Heavy deposit of | 1. The material flow exceeds the | 1. | Lower fluid flow. | |||||||||
material in center. |
| atomizing cap capacity. |
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| 2. | Inlet air pressure is too low. | 2. | Increase inlet air pressure. |
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| 3. | Material is too thick. | 3. | Thin material. |
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Narrow center pat- | 1. Volume control turned in too | 1. | Increase volume. | |||||||||
tern. |
| far. |
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| 2. | Inlet air pressure too high. | 2. | Reduce inlet air pressure. |
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| 3. | Fluid pressure is too low. | 3. | Increase fluid pressure. |
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| 4. | Material is too thin. | 4. | Adjust material. |
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No spray output. | 1. No pressure at gun. | 1. | Check air supply. | |||||||||
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| 2. | Fluid passages dirty. | 2. | Clean gun, remove any |
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| obstructions. |
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| 3. | Fluid control closed. | 3. | Open. |
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| 4. | Out of paint. | 4. | Refill. |
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| 5. | Material too thick. | 5. | Thin to manufacturer's rec- |
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| ommendations. |
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Model H7671/H7672 HVLP Spray Gun |