QP- 2TE — TROUBLESHOOTING (ENGINE/PUMP)
TABLE 7. ENGINE TROUBLESHOOTING (Continued)
SYMPTOM | POSSIBLE PROBLEM | SOLUTION | |
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Operation not satisfactory |
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| Governor adjustment improper? | Adjust governor to correct lever. | |
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| Governor spring defective? | Clean or replace ignition. | |
Rotational speed fluctuates. |
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Fuel flow erratic? | Check fuel line. | ||
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| Air taken in through suction | Check suction line. | |
| line? |
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Recoil starter not working | Dust in rotating part? | Clean recoil starter assembly. | |
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properly. | Spring spring failure? | Replace spiral spring. | |
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TABLE 8. PUMP TROUBLESHOOTING
SYMPTOM | POSSIBLE PROBLEM | SOLUTION | |
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| Not enough priming water in the housing? | Add water. | |
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| Engine speed too low? | Increase throttle. | |
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| Strainer plugged? | Clean strainer. | |
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| Suction hose damaged? | Replace or repair hose, and clamps | |
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| Air leak at suction port? | Check that fittings are tight and properly sealed. | |
Pump does not take on water. |
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Pump is located too high above water line? | Move pump closer to water. | ||
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| Debris collecting in pump housing? | Clean pump housing. | |
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| Too much distance between impeller and volute. | Adjust clearance by adding shims or replace impeller. | |
| Min. .006" - Max. .020" | ||
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| Water leaking out weep hole between pump and | Check condition of mechanical seal and gaskets, | |
| engine? | between pump end and engine housing. | |
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| Engine speed too low? | Increase throttle speed. | |
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Pump takes in water, little or no | Suction strainer partially plugged? | Clean strainer. | |
discharge. |
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Impeller/Volute worn? | Adjust clearance by adding shims or replace | ||
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| impeller/volute | |
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| Fittings/clamps are not sealed properly? | Tighten, replace or add clamp. (Keep extra seals on | |
Suction hose leaks at inlet. | pump) | ||
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| Hose diameter is too large? | Use smaller diameter hose or replace hose. | |
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Discharge does not stay on | Pressure too high? | Check pressure, add additional clamp. | |
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coupling. | Hose kinked or end blocked? | Check hose. | |
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| Impeller jammed or blocked? | Open pump cover and clean dirt and debris from | |
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| inside housing. | |
Impeller does not turn: pump is |
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Impeller and volute binding? | Adjust clearance by removing shim from behind | ||
hard to start. | |||
impeller. | |||
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| Defective engine? | See Engine Owner's Manual. | |
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QP- 2TE TRASH PUMP — OPERATION AND PARTS MANUAL — REV. #1 (08/10/10) — PAGE 29
