Common paint spray gun faults and how to fix them
Common problems with spray guns and how to fix them
Spray guns are essential tools for precise painting. Problems can arise due to incorrect handling, insufficient care or wear. In this article, we explain the most common causes of faults, suggest solutions and provide tips for avoiding them.
1. The spray fan is not right
| Cause |
Action |
Contamination (nozzle set/gun body) |
| Contamination (nozzle set/gun body) |
Clean according to SATA cleaning instructions |
Clean regularly |
| Inlet pressure too high or too low |
Observe paint manufacturer's specifications |
Set the appropriate inlet pressure. |
| Incorrect nozzle selection for the viscosity |
Ensure that the correct nozzle size is selected |
Follow the paint manufacturer's recommendations. |
2. swirling in the flow cup
| Cause |
Action |
Prevention |
| Loose paint nozzle or nozzle not tightened hand-tight |
Tighten paint nozzle with SATA tool |
Regularly check and tighten screws |
| Dirty paint nozzle or air distributor ring |
Clean with SATA cleaning brushes |
Clean carefully after each use |
3. loosening of the coating around the thread
| Cause |
Action |
Prevention |
| pH value of the cleaning agent is below 6 or above 8 |
Change cleaning agent, use pH-neutral products |
Use suitable cleaning agents. |
4. R/B control (round/wide jet control) defective
| Cause |
Action |
Prevention |
| Incorrect, damaged or incorrectly installed air distributor ring |
Replace the air distributor ring, fit correctly |
Use original parts and install carefully. |
| Sticking of the knurled screw due to paint residue |
(spindle + knurled knob) |
Clean the spray gun correctly, never soak it in solvent. |
With the right care and maintenance of your spray gun, you can avoid errors and achieve high-quality results in the long term.
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