SPXFLOW C Series - Vibration;Noise

Troubleshooting Waukesha Cherry-Burrell
®
Brand C-Series Pump
Page 82 95-03008-IEC 01/2019
Motor Overload,
continued
Impeller interference. Disassemble pump and inspect for
damage. Remove interference if still
present. Replace worn/damaged parts.
Seal binding. Disassemble pump and inspec
t for
damage. Check for material crystallization
on seals.
Discharge head too low allowing
pu
mp to deliver too much liquid.
Raise discharge head until pump achieves
proper resistance to flow.
Liquid heavier or more viscous
than rat
ing.
Contact your SPX FLOW Customer
Service Representative for sizing
information.
Overload heaters too small for
mo
tor.
Inspect and replace as necessary.
Electrical supply, voltage,
fre
quency, incorrect.
Adjust voltage and frequency. Change
motor if necessary.
Impeller diameter too large for
du
ty.
Contact SPX FLOW Application
Engineering for sizing information.
Defective motor. Replace motor.
Vibration/Noise Pump not level. Make sure all legs are touching the floor.
Level
pump.
Piping not supported. Support all piping as described in the
insta
llation section.
Starved suction/Supply line
b
locked.
Shut down pump and remove blockage.
Foreign material in pump. Disassemble pump, re
move all foreign
material and inspect for damage. Replace
worn/damaged parts.
Starved suction/Insufficient NPSH
(
Net Positive Suction Head)
available.
Adjust system to provide correct NPSH.
Impeller hub/impeller shaft worn. Disassemble pump and inspec
t for
damage. Replace worn parts.
Impeller shaft loose or bent. Disassemble pump and inspec
t for
damage.
Impeller out of balance. Disassemble pump and inspec
t for
damage. Replace impeller.
Motor bearings worn. Disassemble motor and inspec
t for
damage. Replace worn parts.
Excessive air in material. Adjust system to remove exc
ess air from
material before it reaches the pump.
Problem Possible Cause
Suggested Action