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| Troubleshooting |
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Problem | Cause | Solution |
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Pump cycles but does not build up | Pump is not primed. | Prime pump. |
pressure. |
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Inlet screen is clogged . | Clean debris off inlet screen and | |
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| make sure suction tube is |
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| immersed in fluid. |
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| Suction tube is not immersed in | Make sure suction tube is |
| paint. | immersed in paint. |
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| Suction tube is leaking. | Tighten suction tube connection. |
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| Inspect for cracks or vacuum |
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| leaks. If cracked or damaged, |
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| replace suction tube. |
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| Prime/Spray Valve is worn or | Take sprayer to Graco/MAGNUM |
| obstructed with debris. | authorized service center. |
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| Pump check ball is stuck. | Read Pump does not prime sec- |
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| tion in Troubleshooting, page 26. |
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Pump cycles, but paint only drib- | Pressure is set too low. | Slowly turn Pressure Control |
bles or spurts when spray gun is |
| Knob clockwise to increase pres- |
triggered. |
| sure setting which will turn motor |
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| on to build pressure. |
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| Spray tip is clogged. | Unclog spray tip, page 14. |
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| InstaClean fluid filter is clogged. | Clean or replace InstaClean fluid |
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| filter, page 21. |
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| Spray gun fluid filter is clogged. | Clean or replace gun fluid filter, |
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| page 21. |
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| Spray tip is too large or worn. | Replace tip. |
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312001R | 27 |
