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Draining the Pump
1. Wear appropriate safety gear.
2. Disconnect the power.
3. Close suction and discharge valves.
4. Remove pipe/hose/tube from suction and discharge.
5. Unscrew/untighten fasteners from wet end.
6. Direct outlet downward into appropriate container.
NOTE: Observe local laws and regulations for handling and disposing hazardous liquids. Do not get
motors wet. Not all motors are dust proof or submersible proof.
Other
For further information on temperature ratings, pressure ratings, horsepower, and NPSHr, utilize the
pump's specific pump manuals and performance curves, which can be found on
Always follow the recommendations of March Manufacturing's
specified otherwise by a March Manufacturing representative.
General Notes
Liquids containing ferrous metal fines should not be pumped.
•
If magnets decouple, stop the pump. Running the pump with the magnets decoupled will weaken
•
the magnets.
Lack of Flow/Head
Check for air leaks in suction piping.
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Make sure that the pump is primed and not running dry.
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System head higher than anticipated.
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Make sure all valves are open.
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Viscosity or specific gravity is too high.
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Suction lift too high or insufficient NPSH
•
•
System may be clogged.
Motor rotation incorrect.
•
•
Air in liquid.
Loss of Prime
Leaks in piping or air in liquid.
•
Foot valve problems.
•
•
Foreign objects in liquid.
Suction lift too high or insufficient NPSHa.
•
Excessive Power Consumption
Head lower than rating.
•
Too much flow.
•
Specific gravity too high.
•
Viscosity too high.
•
Chemical Resistance Guide
Troubleshooting
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