Polaris TBM 200 LH - Manual (Page 13)

INSTALLATION, OPERATION AND MAINTENANCE MANUAL
POLARIS - SERIES TBM 200 LH ( 8” ) - TYPE PHO / PBO / PVO
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DOCUMENT NBR. : PED-010 REVISION: 1 EFFECTIVE
DATE: 08-24-2004
6.2 PUMP START UP
Whenever possible, start the pump in clear liquid to prime discharge piping and/or
hoses. If flexible hoses are used, make sure that they are not pinched since the
pressure developed by the pump may not be enough to force them open.
Lower the pump slowly into the material to be pumped.
Mixture density can be monitored via a current meter. Higher current draw of the
pump will indicate higher density and therefore higher production rate. The mixture
density can be controlled by raising or lowering the pump into the material.
Be aware of the mixture characteristics for your specific application. It is important
that you maintain a pipeline velocity above the critical settling velocity of the solids
mixture being pumped to prevent the solids from settling out and clogging the
discharge line.
Never stop the pump while pumping solids through the system. This will plug the
piping. Before shut down, raise the pump into clean water and completely flush the
discharge line.
During the initial few days of operation while all parts are still new, observe the
discharge gauge readings as well as the motor amperage draw. If a flow meter is
available, monitor the pump output as well.
These readings should be taken and recorded periodically and will help you to
establish an inspection and maintenance schedule. Keeping track of your pumps
performance will make it easier to identify problems before they become serious and
cause undue damage.