EBARA EFQU4 User Manual
Page 21
EBARA Fluid Handling
20
TROUBLE POSSIBLE
CAUSE
PROBABLE
REMEDY
EXCESSIVE NOISE
Cavitation in pump.
Pumping entrained air.
Pump or drive not securely mounted.
Impeller clogged or damaged.
Reduce suction lift and/or friction losses in
suction line. Record vacuum and pressure
gauge readings and consult local
representative or factory.
Locate and eliminate source of air bubble.
Secure mounting hardware.
Clean out debris; replace damaged parts.
BEARINGS RUN
TOO HOT
Bearing temperature is high, but within
limits.
Low or incorrect lubricant.
Suction and discharge lines not properly
Supported.
Drive misaligned.
Check bearing temperature regularly to
Monitor any increase.
Check for proper type and level of lubricant.
Check piping installation for proper support.
Align drive properly.