3. OPERATION:
3.1 Before starting the pump check the following:
3.1.1. The pump rotates freely by hand.
3.1.2. Sealing/flushing connection provided is properly tightened and adjusted.
3.1.3. Fill in the grease for bearings, if not done earlier.
3.1.4. The direction of rotation of motor corresponds to the direction of rotation of the
pump.
3.1.5. The pump and the suction pipe is fully primed with the liquid.
3.1.6. Valve on the delivery side is closed.
3.1.7. Stuffing box packing is properly tightened properly.
3.1.8. The cock for the pressure gauge connection is closed.
3.2 Starting the pump
3.2.1 Start the pump. Let the prime mover pick up its full speed.
3.2.2 Open the valve on delivery side slowly.
3.2.3 Open the cock for pressure gauge connection.
3.3 During running the pump
3.3.1 The pump is running smoothly.
3.3.2 The flow of sealing water is uninterrupted.
3.3.3 Leakage through stuffing box is normal. There should be leakage is 60 to
80 drops/ min. (if pump is with gland packing arrangement, in mechanical seal
Pump there will not be any leakage)
3.3.4 The bearings are not getting heated up excessively.
3.3.5 Head and capacity developed by the pump is as specified.
3.3.6 Power consumption is within limit.
3.3.7 Ensure that there is no mechanical friction in the pump.
3.3.8 Stop the pump immediately, if any defects are noticed. Do not start the pump
unless the defects are rectified. Report immediately to the supplier, if it is not possible to
rectify the defects.
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