Troubleshooting
WARNING
PRESSURIZED EQUIPMENT HAZARD
To reduce the risk of a serious injury, follow the Pres- sure Relief Procedure on page 12 before checking or repairing any part of the gun or system.
PROBLEM | CAUSE | SOLUTION | |
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Fluid flow is fluttering while spraying | 1. | Fluid nozzle not tight enough | 1. Tighten fluid nozzle to |
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| 2. | Fluid filter clogged | 3. Check fluid filter. |
| 4. Fluid adjustment knob not prop- | 5. Turn the fluid adjustment knob | |
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| erly set | out for less feathering or use a |
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| larger size nozzle. |
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Fluid flow fades while spraying high | 1. Air hose size is too restricted for | 1. Use 5/16 in. (7.9 mm) I.D. air | |
viscosity fluids |
| higher air flow being used | hose if the hose is 25 ft. |
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| (7.625 m) long. If longer hose is |
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| needed, use a 3/8 in. (9.5 mm) |
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| I.D. hose. |
| 2. Fluid pressure too low, causing | 3. Raise fluid pressure at source or | |
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| fluid flow to reduce when gun is | use a smaller fluid nozzle. |
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| elevated |
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Pattern becomes | Air cap horn holes plugged or dam- | Clean air cap horn holes with non- | |
ends | aged | metallic item such as a toothpick, or | |
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| replace air cap. |
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Gun fluid pressure is too high with | Using needle/nozzle kit with too | Use needle/nozzle kit with larger | |
gun triggered | small orifice | orifice | |
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Using a low fluid pressure setting, | Using needle/nozzle kit with too | Use needle/nozzle kit with smaller | |
the fluid flow is too high, making it | large orifice | orifice | |
necessary to restrict needle travel to |
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reduce fluid flow |
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Fluid system will not operate at low | There is no fluid regulator, or air | Add low pressure fluid regulator, or | |
enough fluid pressure [below 10 psi | regulator on pressure pot is not sen- | add more sensitive low pressure air | |
(70 kPa, 0.7 bar)] | sitive enough at low pressures | regulator on pressure pot. | |
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