Operating Instructions and Parts Manual | 020598 and 020599 |
Troubleshooting Chart
Symptom
Little or no discharge and unit will not prime
Possible Cause(s) | Corrective Action |
1. Casing not filled with | 1. Fill pump casing. Using a foot- |
water | valve will extend pump life and |
| facilitate immediate priming. |
2. Total head too high.
2.Shorten suction lift and/or dis- charge head
3.Suction head exceeds that for which pump is designed
3.Shorten suction line and/or ver- tical distance from liquid to pump, install
4. | Impeller partially or com- 4. Disassemble pump and clean out | ||
| pletely plugged |
| impeller |
5. | Hole or air leak in suction | 5. | Repair or replace suction line |
| line |
|
|
6. | 6. | Match | |
|
|
| install one size larger foot- |
|
|
| valve |
7. | Impeller damaged | 7. | Disassemble pump and replace |
|
|
| impeller |
8.
9.Insufficient inlet pressure or suction head
8.Submerge lower in water
9.Increase outlet pressure by adding more water to tank or increasing back pressure by turning
10. | Suction piping too small | 10. | Increase pipe size to pump |
|
|
| inlet size or larger |
11. | Casing gasket leaking | 11. | Replace |
12. | Suction or discharge line | 12. | Open |
| valves closed |
|
|
Loss of suction after satisfactory operation
1.Air leak in suction line
2.When unit was last turned off, water syphoned out of pump casing
1.Repair or replace suction line
2.Refill (reprime) pump casing before restarting
3.Suction head exceeds that for which pump was designed
3.Shorten suction line and/or ver- tical distance from liquid to pump, install
8