Troubleshooting
Problem | Cause | Solution |
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Speed of application slow or slower | New pump hose not broken in | Run pump dry for no more than 2 |
| properly | minutes. |
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| Material too thick | Thin material. |
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| Nozzle too small | Change nozzles to a larger size. See |
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| Recommended Nozzle Selection |
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| Chart, page 10. |
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| Too much air being used | Partially close gun air valve to reduce |
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| air flow. |
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| Pump hose worn | Replace hose. |
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| Plugged or dirty gun | Relieve Pressure, page 6. Clean |
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| gun. |
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| Kinked hose | Unkink hose. |
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| Gun adjustment set too low | Increase flow adjustment with flow |
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| adjustment nut. |
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| Too many items on same circuit | Unplug other items from circuit |
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| Extension cord too long or wrong | Use a different extension cord. Refer |
| gauge | to Grounding and Electric Require- |
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| ments, page 6. |
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Intermittent flow/sputtering | Hopper connection not tight | Check gasket. TIghten connection. |
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| Debris in system | Clean system. |
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Quick disconnect does not stay con- | Dirty or corroded fitting | Clean thoroughly. Soak in oil. Apply a |
nected. |
| few drops of light oil. |
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Gun will not shut off | Worn nozzle or needle | Relieve Pressure, page 6. Replace |
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| worn parts. |
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| Debris in needle passage | Relieve Pressure, page 6. Clean. |
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Fluid leaking at Flow Adjustment Nut | Damaged seal | Relieve Pressure, page 6. Replace |
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| seal. |
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Fluid leaking out of either plug | Missing or damaged | Relieve Pressure, page 6. Replace |
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| Gun damaged | Replace gun. |
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Needle adjustment won’t adjust | Dirty threads | Clean threads. |
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| Nozzle not on gun | Put nozzle on gun. |
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