Waukesha 200 series Operation And Maintenance Manual - page 27
Troubleshooting
Waukesha Cherry-Burrell
Page 28
95-03074
January 2003
PROBLEM
POSSIBLE CAUSE
SUGGESTED ACTION
Vibration/Noise
Pump not level.
Ensure legs are touching floor. Level
pump.
Piping not supported.
Support all piping as described in
installation section.
Starved suction/supply line
blocked.
Shutdown pump and remove blockage.
Foreign material in pump.
Disassemble pump, remove all foreign
material and inspect for damage. Replace
worn or damaged parts.
Starved suction/insufficient
NPSH (Net Positive Suction
Head) available.
Adjust system to provide correct NPSH.
Impeller out of balance.
Disassemble pump and inspect for
damage. Replace impeller.
Motor bearings worn.
Disassemble motor and inspect for
damage. Replace worn parts.
Starved suction/supply line too
long.
Shorten system supply line.
Starved suction/supply line too
small.
Install larger supply lines.
Rapid Seal Wear
Water Hammer.
Adjust system to reduce air in system and
sudden starts or stops in flow.
Abrasive product.
Contact your Waukesha Cherry-Burrell
Customer Service Representative for
alternate seal information.
WCB Customer Service Telephone:
1-800-252-5200 or 262-728-1900
Prolonged “dry” running.
Adjust process to insure pump has
continual fresh supply of product during
operation.
Abrasive solids (unfiltered) in
flush water supplied to seal.
Use only filtered water in seal flush
system.
Seal Leaks
Gasket damaged or worn.
Replace gasket.
Seal not installed correctly.
Disassemble pump and inspect seal for
damage (replace if necessary). Install seal
correctly and reassemble pump.
Carbon seal worn or damaged.
Replace carbon seal.
Inlet/outlet connection loose.
Inspect inlet/outlet connection for gasket
and tighten connection.