Xylem GLS GLV - Manual (Page 26)

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Pay attention that the electric pump may start without prior notice.
Verify that the safety equipments are always active. Observe all the accident prevention regulations.
Check the current absorbed by the motor and, if necessary, adjust the setting of the thermal relay.
Make sure that the level of the liquid is high enough to prevent inlet of air to the pump through the
suction port.
6.4 Distance to wet areas
Risk of electrical shock when pumping near a lake, beaches, jetties, beaches or similar wet areas. There
must be a safety distance of at least 20 meters between the person and the electric pump if the person is
in contact with the pumped liquid.
Do not use the electric pump for swimming pools or fountains.
7. Maintenance, service and spare parts Information for maintenance personnel
Before performing any maintenance operations on the electric pump, make sure that the motor is
voltage-free.
Maintenance operations must be performed by skilled, qualified and authorized personnel only. Use
suitable equipment and protection devices. Observe the accident prevention regulations in force. If you
need to drain the pump, make sure that the drained liquid does not cause damage or injuries.
Wait for all the components to cool down before touching it.
During maintaining and before reassembly, always remember to clean carefully all the components, in particular O-rings seats,
and to replace all the O-rings, the gaskets and the sealing faces of the seals.
7.1 Routine maintenance
The pump requires a few simple routine maintenance tasks to be performed on a regular basis.
Frequency* Operation
Within the first year of operation Initial inspection.
Ask our Sales and Service Department for a check of the
electric pump conditions to determine the frequency of
maintenance inspections.
At least once a year for normal applications and operation in
liquids with temperature < 40°C.
Periodical inspection to avoid operation breakdowns and
failures.
At least once every 3 years for normal applications and
operation in liquids with temperature < 40°C.
Major inspection to ensure a long electric pump operating
lifetime.
* more frequent operations may be necessary if the electric pump is used in extreme conditions, like for example pumping
abrasive or corrosives solids, or liquids with temperature > 40°C.
7.1.1 Initial and periodical inspections
Component to be inspected Operation
If the outer jacket is damaged, replace the cable
Electric cable
Check that the cables do not have any sharp bends and are not
pinched.
Electrical connections Check that the electrical connections are properly tightened.
Electrical cabinets Check that they are clean and dry.
Impeller Check the impeller clearance. If necessary, adjust the impeller.
Stator casing* Drain all liquid, if present.
Check that the insulation resistance between the ground and the phase
lead is more than 5 MΩ.
Insulation
Check the resistance between phases.
Terminal board box Check that it is clean and dry.
Lifting device Check that local safety regulations are followed.
Lifting handle Check the screws. Check the conditions of the handle. Replace if
necessary.
Replace the oil plug O-rings.
Replace the O-rings on the terminal board cover.
O-rings
Grease the new O-rings.
Personal safety devices Check all the protections.
Rotation direction Check the rotation direction.
Oil housing Fill with new oil, if necessary.
Terminal board / closed end splice Check that the connections are properly tightened.
Voltage and amperage Check the values.
* regardless of the individual application, the inspection chamber should be inspected at least with the same frequency than
the intervals for normal applications and conditions with liquids having temperature < 40°C.
WARNING