IOM/RKBV/OCT 19/00 Page 6 of 47 Issue date : 23/10/2019
Revision: 00
3.1.6
Before commissioning the pump set, please ensure:
1)
The pipe connections are flushed and tightened properly.
2)
Alignment is proper.
3)
Auxiliary piping connections such as sealing connections, cooling
connections, etc., are made. Details of sealing liquid are given in our
supply order.
4. OPERATION
:
4.1
Before starting the pump check the following:
1)
The pump rotates freely by hand.
2)
Fill the grease for the driving end bearings, if not done earlier. The bearings are
packed with grease in the factory for grease lubricated pumps.
3)
However, if the pump is stored for a longer time it is necessary to refill the grease in
the bearings.
4)
If pump is with external flushing arrangement to bush bearings, then please ensure
that external flushing connection is given and flushing liquid is supplied to the pump.
(Refer Fig No. 5).
5)
The direction of rotation, it should be anticlockwise when viewed from driving end.
6)
The sealing liquid and cooling water connections are properly tightened and
adjusted.
7)
The direction of rotation of driver. It should correspond to the direction of rotation of
pump.
8)
The pump casing and the suction pipeline is fully primed with the liquid.
9)
Valve on delivery side is closed.
10)
The cock for pressure gauge connection is closed.
11)
The stuffing box packing is properly tightened for gland packed pump.
4.2
Starting the pump
1)
Start the pump. Let the prime mover pickup its full speed.
2)
Open the valve on delivery line gradually.
3)
Regulate the required flow by adjusting the delivery valve.
4)
Open the cock for pressure gauge connection.
4.3
During running the pump
Check the following things and regulate if needed –
1)
The pump is running smoothly.
2)
The flow of sealing liquid and cooling water is uninterrupted. If necessary,
provide sight glass in the piping.
3)
The bearings are not getting abnormally hot.
4)
Power consumption is within the limit.