Troubleshooting Chart
| Symptom | Possible Cause(s) | Corrective Action | |||
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| Spray pattern too small | 1. | Dried material lodged in | 1. | Clean air cap | |
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| openings of air cap |
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| 2. | Lumpy material | 2. | Thin and strain material | |
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| 3. | Not enough material | 3. | Open fluid control knob further | |
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| 4. | Insufficient fluid pressure | 4. | Increase air pressure. Do not exceed 50 psi | |
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| Unsatisfactory spray | 1. | Material too heavy | 1. | Thin material | |
| pattern | 2. | Dirty air cap | 2. | Clean | |
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| 3. | Too much material being | 3. | Close fluid control knob to reduce material flow | |
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| applied |
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| 4. | Spray pattern too wide | 4. | Close fluid control knob further or move closer to the work | |
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| Too much spray mist | 1. | Too much air pressure for | 1. | Reduce air pressure | |
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| material being sprayed |
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| 2. | Material too thin | 2. | Mix with thicker material. Reduce air pressure. Open fluid | |
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| control knob gradually | |
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| Leakage around fluid | 1. | Packing too loose | 1. | Tighten packing nut. Replace packing if tightening does | |
| packing nut |
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| not stop leakage | |
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| 2. | Worn or dry packing | 2. | Replace or lubricate with | |
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| Leakage around | 1. | Canister gasket not seating | 1. | Clean gasket. Replace if necessary | |
| canister and canister |
| properly |
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| cover | 2. | Canister not tightened | 2. | Tighten securely. Apply a small amount of Vaseline® or | |
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| securely |
| mineral type grease on the threads when assembling the | |
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| canister to the canister cover | |
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| Orange Peel | 1. | Material drying too fast | 1. | Use a slower solvent or add a retarding agent | |
| (Rough rolling | 2. | Gun too far from surface | 2. | Move gun closer to surface | |
| appearance similar to | 3. | Material too thick | 3. | Thin material per thinning instructions | |
| an actual orange |
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| peeling) |
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| Runs and sags | 1. | Material too thin | 1. | Add material to increase thickness | |
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| 2. | Moving gun too slow | 2. | Move gun more quickly | |
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| 3. | Excessive material flow | 3. | Turn material control knob clockwise to reduce flow | |
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| 4. | Gun too close to surface | 4. | Move gun further from surface | |
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| Mottled, rough surface | 1. | Too much thinner | 1. | Reduce thinner | |
| finish | 2. | Poor spray technique | 2. | Refer to “Operation” for spraying instructions | |
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