SPX FLOW Universal TS Series Instruction Manual page 93

Waukesha Cherry-Burrell Brand Universal TS Series
PROBLEM
Noisy operation
Noisy operation
caused by mechanical
problems
06/2017
POSSIBLE CAUSE
Fluid viscosity greater than
expected.
Fluid temperature higher than
expected (vapor pressure higher).
Cavitation
High fluid viscosity.
High vapor pressure fluid.
High temperature.
Net Inlet Pressure Available less
than Net Inlet Pressure
Required.
Air or gas in fluid
Leaks in the pump or piping.
Dissolved gas or naturally aer-
ated products.
Screw to body contact
Improper assembly of pump.
Distortion of pump due to
improper piping installation.
Pressures required higher than
the pump is rated for.
Worn bearings.
Screw to Screw Contact
Loose or incorrectly-timed gears.
Sheared keys.
Worn gear splines.
Drive noise caused by gear trains,
chains, couplings, bearings.
95-03141
Troubleshooting
SUGGESTED ACTION
Reduce pump speed and accept lower
flow, or change system to reduce line
losses.
Change temperature of product to
reduce viscosity.
Reduce temperature, reduce speed and
accept lower flow or change system to
increase Net Inlet Pressure Available.
Slow down pump, reduce temperature,
change system setup.
Increase NIPA - Net Inlet Pressure
Required or reduce NIPR - Net Inlet
Pressure Required. Contact SPX
FLOW if necessary.
Correct leaks.
Minimize discharge pressure (also see
"Cavitation," above).
Check clearances
Change piping installation to eliminate
piping stress and distortion on body.
Reduce discharge pressure required.
Rebuild with new bearings and lubricate
regularly.
This has caused severe damage to
components - rebuild with new parts.
This has caused severe damage to
components - rebuild with new parts.
This has caused severe damage to
components - rebuild with new parts.
Repair or replace drive parts. Check
bearings for damage and replace as
necessary.
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