Troubleshooting
Troubleshooting
WARNING
Follow Pressure Relief Procedure, page 13 when you stop spraying and before cleaning, checking, ser- vicing, or transporting equipment. Read warnings, page 3.
Problem |
| Cause |
| Solution |
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Fluid flow is fluttering while spraying. | 1. | Fluid nozzle not tight enough. | 1. | Tighten fluid nozzle to 40 |
| 2. | Fluid filter clogged. |
| (4.5 N•m). |
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| 3. | Fluid source empty. | 2. | Check fluid filter. |
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| 3. | Refill |
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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. (7.6 m) |
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| long. If longer hose is needed, |
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| use a 3/8 in. (9.5 mm) I.D. hose. |
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Pattern becomes | 1. | Air cap horn holes plugged or | 1. | Clean air cap horn holes with |
ends. |
| damaged. |
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| 2. | Nozzle tip dirty or damaged. |
| toothpick, or replace air cap. |
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| 2. | Clean or replace nozzle. |
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Gun fluid pressure is too high with | Using needle/nozzle kit with too small | Use needle/nozzle kit with larger ori- | ||
gun triggered (cannot achieve | orifice. | fice. | ||
desired flow rate). |
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Using a low fluid pressure setting, the | Using needle/nozzle kit with too large | Use needle/nozzle kit with smaller | ||
fluid flow is too high, making it neces- | orifice. | orifice. | ||
sary 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 reg- | Add low pressure fluid regulator, or | ||
enough fluid pressure [below 10 psi | ulator or pressure pot is not sensitive | add more sensitive low pressure air | ||
(70 kPa, 0.7 bar)]. | enough at low pressures. | regulator on pressure pot. | ||
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18 | 310692D |
