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HYPRO Roller Pump Operation and Maintenance - VERY IMPORTANT!
WARNING: Never pump corrosive or abrasive liquids as these will cause rapid wear or deterioration of body, rotor, shaft and seals in the pump. The pump should be used only with liquids compatible with pump component materials. Never exceed maximum specified rpm and pressure. Never run pump dry. Failure to follow this warning will void the product warranty.
Priming the Pump
To help prime the pump, keep the inlet or suction line as short as possible with a minimum of bends, elbows and kinks. Make sure all connections are tight and do not leak air. Make sure line strainer is free of debris. If pump does not self-prime, disconnect suction hose, fill with water and reconnect to liquid source. Often a squirt of oil into the ports of the pump will seal clearances and help priming.
Care of the Pump
Hypro roller pumps are all carefully machined to close tolerance - high pressure operation depends on close-fitting parts. Proper care and maintenance will keep your pump wear at a minimum and will keep it running smoothly and trouble-free for a long time.
Flush the Pump After Each Use
One of the common causes of faulty pump performance is “gumming” or corrosion inside the pump. This prevents the rollers from moving freely in their rotor slots. Flush the pump with a solution that will neutralize liquid pumped, mixed according to manufacturer's directions.
To Prevent Corrosion
After cleaning pump as above, flush it with a 50-50 solution of permanent-type automobile antifreeze (containing a rust inhibitor) and water. A rust inhibitor can also be squirted into the ports of the pump. Turn shaft several times to draw protective liquid through pump and coat entire inner surface. Drain pump and plug ports to keep out air during storage. For short periods of idleness, noncorrosive liquids may be left in the pump, but air must be kept out. Plug ports or seal port connections.
Rotation
Pump rotation must be the same as shown by the arrows on the pump. Facing the shaft end of the pump, the suction port is on your left and the shaft must turn counterclockwise. If reverse rotation is desired, rotor and shaft assembly must be reversed so that the shaft extends through the endplate. See Reversing Rotation Section below for proper procedure.
Note: Configuration is opposite for 4001 and 4101 series.
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