Basic Troubleshooting / 基本故障排除 / 기본적인 문제 해결
Problem |
| What To Check | What To Do |
| (If check is OK, go to next check) | (When check is not OK, refer to this column) | |
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Motor runs and pump strokes | 1. | Prime Valve is open or leaking. | Close or replace Prime Valve, page 60. |
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| 2. | Paint supply. | Refill and reprime pump. |
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| 3. | Intake strainer clogged. | Remove and clean, then reinstall. |
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| 4. | Suction tube leaking air. | Tighten nut. Check |
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| 5. | Intake valve ball and outlet | Clean and repair pump, page 58. Strain paint before |
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| ball are seating properly not worn. | using to remove particles that could clog pump. |
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| 6. | Leaking around throat packing | Replace Pump and Packing module, page 60. |
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| nut which may indicate worn |
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| or damaged packings. |
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| 7. | Pump rod damaged. | Replace Pump and Packing module, page 60. |
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Motor runs but pump does not | 8. | Gears or drive housing. | Inspect Drive Housing Assembly and gears |
stroke |
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| for damage and replace if necessary, page 60. |
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Motor is hot and runs | 1. | Be sure ambient temperature where | Move sprayer to shaded, cooler area if possible. |
intermittently |
| sprayer is located is not more |
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| than 115°F (46°C) and sprayer |
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| is not located in direct sun. |
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| 2. | Motor has burned windings | Replace Motor, page 33. |
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| indicated by removing positive |
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| (red) brush and seeing burned |
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| adjacent commutator bars. |
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Low air output at gun | 1. | Air valves at gun may be closed. | Turn air adjustment valve |
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| Slide air ON/OFF up to open. |
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| 2. | Air connections may be loose. | Check all connections for leaking air. |
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Low air output at gun | 3. | Damaged (leaking) air supply | Replace air supply hose. |
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| hose. |
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| 4. | Air intake filter clogged. | Clean or replace air intake filter. |
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38 | 313797C |
