IOM/KPDS/NOV 19/00
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Issue Date : 22/11/2019
Revision: 00
8.
EQUIPMENT SCHEDULE:
8.1 Installation:
For location, preparing foundation, installation, alignment, piping, general
maintenance, trouble shooting, etc. the instructions given in our publication -
’GENERAL
INSTRUCTIONS
FOR
INSTALLATION
OPERATION
AND
MAINTENANCE OF KIRLOSKAR CENTRIFUGAL PUMPS’ which is also printed
along with this booklet must be followed very carefully. The external sealing
connection to the pump, if applicable, must be made after installing and before
commissioning the pump. Pump on hot service must have final coupling
alignment made with the unit at its operating temperature.
8.2
Mounting and alignment:
A flexible coupling is used to connect pump shaft to the driver. However other
types of coupling can be supplied against request.
8.2.1 Alignment-
ALWAYS REMEMBER “A FLEXIBLE COUPLING IS NOT A UNIVERSAL JOINT”.
Correct alignment is essential for the smooth operation of the pump. There are
two types of misalignment between the pump shaft and the drive shaft, which
are:
1)
Angular misalignment – shaft with axis concentric, but not parallel.
2)
Parallel misalignment – shaft with axis parallel, but not concentric.
This misalignment is checked by using a straight edge as shown in Fig. 1 given
above.
Following points should be checked before alignment.
i)
Check the direction of rotation of prime mover before mounting.
ii)
Fix the motor on motor stool.
iii)
Check the float adjustment and start aligning the coupling.
iv)
Check free rotation of shaft after alignment.
Before commissioning the pump set, please ensure:
A.
The pipe connections are flushed and tightened properly.
B.
Alignment is proper.
C.
Auxiliary piping connections such as external lubrication connections,
cooling connections, etc. are made.
9.
EQUIPMENT OPERATION:
9.1
Before starting the pump check the following:
1)
The pump rotates freely by hand.
2)
The cooling water connections are properly tightened and adjusted.
3)
The direction of rotation of driver. It should correspond to the direction of
rotation of pump.
CORRECT
STEEL STRAIGHT STRAIGHT EDGE
INCORRECT PARALLEL
MISALIGNMENT
STEEL STRAIGHT STRAIGHT EDGE
STEEL STRAIGHT STRAIGHT EDGE
INCORRECT ANGULAR
MISALIGNMENT
Fig. 1
Summary of Contents for KPDS
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Page 44: ...IOM KPDS Issue Date 10 08 2007 Page 41 of 50 Last Revision 20 07 2017...
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