Stellar Pump Australia
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7
Installation, Operation and Maintenance (IOM) Manual
3.
Pump Stop
a.
Necessary valves & fittings are required to protect the pump from water hammer effects when
stopping the operation. Please refer to plumbing and/or water system codes & local regulations
for reference. For deep well, check valve may be installed in vertical column pipe or main riser
column pipe for every 100ft to avoid surge back flow and water hammer when operation stops.
b.
When the pump stops, avoid activate the pump. An interval of 30 minutes prior for start up again
is highly recommended to avoid increase of motor temperature.
SECTION VII. MAINTENANCE PROCEDURE
1.
Routine Inspections
a.
Check the pump if it is producing disturbing noise and/or vibration. Kindly shut down the
pump immediately and inspect the pump and piping system.
b.
Check motor insulation using insulation tester.
c.
Check current condition while motor is operating. Motor current readings should be within
the normal range. Compare the said readings with previous data.
d.
Water level in deep well or water tank should be sufficient enough while pump is operation.
e.
Check quality of water discharging from the pump. Do not operate if water has presence of
excess sand & mud.
f.
Shut down the motor if produces unbalance voltage during operation.
2.
Electrical Conditions
a.
Power voltage fluctuations
i.
To maintain the expected life period, do not operate the electric motor if
1.
Actual voltage fluctuates beyond tolerance bands of +/- 10% from normal
power voltage.
2.
Actual voltage fluctuates within tolerance bands of +/- 10% from normal
power voltage for more than 60 minutes each day.
ii.
Electric components for protection against abnormal fluctuation of power supply
voltage or to maintain the stability of power supply voltage for entire day is required
to avoid premature damage of electric motor.
iii.
Check the condition of electrical components inside the control panel. Make sure the
electrical components or device for protection against voltage surge is working
properly.
b.
Submersible Motors
i.
Please check IOM manual of submersible motor for complete details.