Waukesha Cherry-Burrell
®
Brand Universal 3 Pump
Operation
02/2021
95-03103
Page 25
Operation
Important Safety
Information
DANGER
The pump contains internal moving
parts. DO NOT put hands or fingers into
the pump body ports or drive area at any
time during operation. To avoid serious
injury, DO NOT install, clean, service, or
repair the pump unless all power is off
and locked out and the pump is de-
pressurized.
WARNING
Handle the pump components carefully because edges may be
sharp. Wear gloves while installing and servicing the pump to
help avoid injuries from these hazards.
CAUTION
Maintenance should be performed only by trained personnel. See
“Qualification Guidelines for Operating Staff” on page 15.
CAUTION
These pumps are positive displacement, low slip design and will
be severely damaged if operated with closed valves in the
discharge or inlet lines. The pump warranty is not valid for
damages caused by a hydraulic overload from operation or start-
up with a closed valve in the system.
Pre-Startup Checklist
1. Ensure that the pump is correctly installed as described in
“Installation” on page 16. Review “Install Relief Valves” on
page 20 and install relief valves as needed.
2. Check the coupling alignment. See “Check Coupling Align-
3. Ensure that the pump and piping are clean and free of foreign
material such as welding slag, gaskets, etc.
4. Ensure that all piping connections are tight and leak-free.
Where possible, check the system with non-hazardous fluid.
5. Ensure that the pump and drive are lubricated. See “Lubrica-
6. Ensure that all valves are open on the discharge side and a
free flow path is open to the destination.
7. Ensure that all guards are in place and secure.
CAUTION
Full guards must be installed to isolate the operators and
maintenance personnel from the rotating components. Guards
are provided as part of a complete pump and drive package. See
8. Double mechanical seals require adequate supply and flow of
clean flushing fluids.
9. Ensure that all valves are open on the inlet side and fluid can
fill the pump. A flooded suction installation is recommended.
10. Check the direction of pump and drive rotation to ensure that
the pump will rotate in the proper direction. See “Check Pump
Rotation” on page 24.
CAUTION
The motor must be installed by qualified
personnel, e.g., a licensed electrician.
CAUTION
Consult the motor or VFD manufac-
turer's manual for setup, operation, dis-
assembly, and troubleshooting of the
motor or VFD, or contact the manufac-
turer.
CAUTION
Do not use this pump to flush a newly-
installed system. Severe damage may
occur to the pump and system if the
pump is used to flush the system.
Remove the rotors during system
flushing, to prevent debris from being
trapped between the rotors and the
pump body. This debris may damage
the pump upon startup.
WARNING
Do not start a pump with seal flush
unless the seal flush is installed and
turned on.