Summit 2196 model - Appendix B - Centrifugal Pump Troubleshooting; Centrifugal Pump Troubleshooting

Installation, Operation, and Maintenance Manual
16 SUMMIT PUMP MODEL 2196 / 2196-LF / 2196-R / 2796
APPENDIX B - CENTRIFUGAL PUMP TROUBLESHOOTING
The following table provides possible solutions for symptoms that you may encounter
with your centrifugal pump.
WARNING!
Before attempting to service the pump:
1. Follow the shut down procedures.
2. Lock out the power source.
3. Allow the pump to cool.
4. Close the suction and discharge
valves.
5. Drain the pump.
Table 7
CENTRIFUGAL PUMP TROUBLESHOOTING
Symptom Cause Solution
• Pump not primed. • Re-prime pump.
• Suction lift too high. • Install shorter suction pipe.
• Wrong direction of
rotation.
• Change motor wiring.
• Impeller clogged. • Back-flush pump.
Pump not
delivering liquid
• Suction line plugged. • Remove debris.
• Air leak in stuffing box. • Replace or adjust packing.
• Worn suction side plate. • Replace defective part.
• Impeller worn or
damaged.
• Inspect and replace impeller, if
needed.
• Air leak in suction line. • Replace gasket.
• Impeller clogged. • Back-flush pump.
Low flow and low
head
• Wrong direction of
rotation.
• Change motor wiring.