Xylem 19 001 251 R3 Floboy VFD Pumping System - Manual (Page 30)

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MAINTENANCE
Maintenance is an investment that will pay
dividends in the form of improved reliability and
durability. Site maintenance checks are a matter of
day to day, week to week care that is important to
the proper operation of the pumping equipment.
Periodic equipment checks will ensure that the
recommended lubricants, fluids and service parts
are available and planned for. Flowtronex
recommends Preventative Maintenance be
performed quarterly.
DANGER: Personal Injury Hazard
Performing maintenance work on your pump
station can be dangerous. You face the risk of
electrical shock or related injuries, and must be
trained in the danger of electricity. If you have
any doubt, have a qualified technician do the
work. Contact the factory for the closest
authorized Flownet service office to you.
Failure to follow these instructions will result in
death or serious injury.
REGULAR MONTHLY MAINTENANCE
INTERVALS
Heat exchanger:
Verify that the flow through the heat exchanger is
a solid streamline out of the exhaust line into the
wet well. Too little flow reduces cooling capacity.
Too much flow can waste water and reduce the
life of the core. 2 gpm is all that is required.
Control panel:
Using the operator interface, verify that all the
buttons operate properly. Also review the station
operation, fault history, and data log for station
operation.
Verify that all surge devices are visually sound.
Check the surge device for the station (mounted
on the back of the control panel). Black soot on or
around the device indicates that it has taken a
surge and needs to be replaced.
Motor lubrication:
If you have a grease filled bearing, ensure that
grease is not all over the inside of the motor and
down in the bottom of the motor. This could be a
sign of over-filling. Refer to the motor
manufacturer's lubrication instructions.
Pumps - horizontal:
For a horizontal pump, verify that the mechanical
seal is not leaking between the pump and the
motor.
Sound and visual checks of whole station:
Just listen. Do you hear any odd sounds rubbing
or grinding or maybe even electrical arcing or that
something is in a bind? This can indicate a serious
problem.
There is going to be some harmonic vibration with
the pumps and motor. We are looking for
excessive vibration or noise. Can you see a bend
in the pump shaft? Do the motor and shaft shake
violently? This needs servicing immediately. Do
not operate pump if vibration is excessive.
Confirm that the building cooling and ventilation
systems are operating and clear of all
obstructions. Maximum operating range for
equipment is 40°C (104°F). Verify that water,
grease, oil, hardware, etc. are not leaking or loose
on the pump station.
Station skid:
Visually inspect for leaks in the station piping,
valves, and other components.
Visually inspect the piping and skid for any stress
cracks in the welds.
Visually inspect the station for loose or damaged
paint or areas of rust.
DANGER: Personal Injury Hazard
Pump station maintenance must be performed by
properly trained and qualified personnel. Hazards
exist
for electrocution, shock, rotating
components, and pressurized components.
Failure to follow these instructions will result in
death or serious injury.