Pump Performance Checklist

Although the following list is not a complete guide to an optimum pump performance, pump inspection and service, it does cover the more common conditions that can impair your pump's efficiency. The first thing you should look after if you want optimum pump performance is the suction line. Checking the suction line means looking to see if there are any air leaks by using a vacuum gauge and in case you find any use pipe dope to seal gauge threads and pipe plugs. Make sure that you also check the suction line hose and the suction strainer, because a proper suction strainer can prevent pump from clogging.

To make sure everything is going smooth and you have an optimum pump performance you should check the impeller vanes, wear plate or the wear rings. These components should be inspected every six months or sooner, depending on pump application. A proper pump performance means an impeller clearance since they are very important for pump efficiency. If the clearance is less than that recommended the components will wear excessively and that leads to poor pump performance. Also make sure that the seal is as it should be, thus check and replace the seal if worn.

Another aspect that should be verified is the bearings, because worn bearings can cause the shaft to wobble and that leads to overheating the pump and sooner or later it will freeze up and stop. Verify the engine or motor as well, because the pump may not be getting the power it needs to operate efficiently. The engine may need a tune-up or the motor may need service.

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