Goulds Pumps 3910 11th ed. - IOM - Manual (Page 25)

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CAUTION
Damage occurs from:
1. Increased vibration levels - Affects bearings, seal
chambers, and mechanical seals.
2. Increased radial load - Increases stress on shaft and
bearings.
3. Heat build up - Vaporization causes rotating parts to
score or seize.
4. Cavitation - Increases damage to internal surfaces of
pump.
OPERATING UNDER FREEZING
CONDITIONS
Exposure to freezing conditions while pump is idle could
cause liquid to freeze and damage the pump.
Liquid inside pump should be drained. Liquid inside
auxiliary piping, if supplied, should also be drained.
SHUTDOWN
1. Slowly close discharge valve.
2. Shut down and lock out driver to prevent
accidental rotation.
s
! WARNING
When handling hazardous and/or toxic fluids, proper
personal protective equipment is required. If pump is
being drained, precautions must be taken to prevent
physical injury. Pumpage must be handled and
disposed of in conformance with applicable
regulations.
FINAL ALIGNMENT
!
Alignment procedures must be followed to prevent
unintended contact of rotating parts. Follow
coupling manufacturer’s installation and operation
procedures.
1. Run the unit under actual operating conditions for a
sufficient length of time to bring the pump and driver and
associated systems to operating temperature.
2. Shut down and lock out driver as described above.
s
! WARNING
Before beginning any alignment procedure, make sure
driver power is locked out. Failure to lock out driver
power will result in serious physical injury.
3. Remove coupling guard. Refer to coupling guard
installation and disassembly instructions in Appendix I.
4. Check alignment while unit is still hot per alignment
criteria in the Installation section.
5. Reinstall coupling guard. Refer to coupling guard
installation and disassembly instructions in Appendix I.
3910-1
1th IOM 5/08
25
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