Start The Pump - Xylem LOWARA e-MPA Manual De Instalación, Funcionamento Y Mantenimiento

4. Close the screwed plugs.
Installations with liquid level below the pump
(suction lift)
1. Open the on-off valve located upstream
from the pump
2. Close the on-off valve located downstream
from the pump.
3. Open the screwed plugs (PM2).
4. Fill the pump until the water flows out of the
hole.
5. Close the screwed plugs.
5.2 Check the rotation direction
Follow this procedure before start-up.
1. Locate the arrows on the adaptor or the
motor fan cover to determine the correct
rotation direction.
2. Start the motor.
3. Quickly check the direction of rotation
through the coupling guard or through the
motor fan cover.
4. Stop the motor.
5.3

Start the pump

The responsibility for checking the correct flow
and the temperature of the pumped liquid rests
with the installer or owner. Before starting the
pump, make sure that:

The bearings are already filled with grease
and therefore ready for operation.

Pump and suction pipe must be filled
completely with liquid when starting up, see
chapter 5.1

Turn pump unit once again by hand and
check that it moves smoothly and evenly.

Check that coupling guard is installed and
that all safety devices are operational.

Switch on any sealing, flushing or cooling
devices that are provided.

Open valve in suction/intake pipe.

Set the pressure-side on-off valve to
approx. 25% of the pump rate for which the
system was designed. For pumps with a
drive output lower than 30 kW, the on-off
valve may also remain closed briefly upon
startup.

Secure, that unit is electrically connected
according to all regulations and with all
safety devices.

Start the pump. At the expected operating
conditions, the pump must run smoothly
and quietly. If not, refer to Troubleshooting.
6 Maintenance
Precautions
Electrical Hazard:
Disconnect and lock out electrical
power before installing or servicing the
unit.
WARNING:

Maintenance and service must be
performed by skilled and qualified
personnel only.

Observe accident prevention
regulations in force.

Use suitable equipment and
protection.

Make sure that the drained liquid
does not cause damage or injuries.
6.1 Service
If the user wishes to schedule regular
maintenance deadlines, they are dependent on
the type of pumped liquid and on the operating
conditions of the pump.
Contact the local sales and service
representative for any requests or information
regarding routine maintenance or service.
Extraordinary maintenance may be necessary to
clean the liquid end or replace worn parts.
Pumps with regreasable bearings

Regrease at 4000 operating hours, but at
least once per year. Clean lubrication
nipples (SN) first.

Use NLGI Grade 2 grease or equivalent.
Contact the local sales and service
representative for any requests or information.
Motor bearings
After approximately five years, the grease in the
motor bearings is so aged that a replacement of
the bearings is recommended. The bearings must
be replaced after 25 000 operating hours or
according to the motor supplier maintenance
instructions, whichever is shorter.
Motor with greased for life bearings
Motor with greased for life bearings do not
require any scheduled routine maintenance.
Motor with regreasable bearings
Follow motor supplier maintenance instructions.
Coupling
Check the clearance in the coupling elements
regularly, at least once a year. We recommend
checking every 1000 operating hours or every
three months, whichever comes first.
6.2 Inspection checklist
Check the Check the flexible elements of
coupling the coupling. Replace the
relevant parts if there is any
sign of wear and check the
alignment.
Check the Check for leakage of the
mechanical mechanical seal. Replace the
seal mechanical seal if leakage is
found.
Checking the Check correct seating of axial
bearing seals seal rings mounted on the
shaft. Only gentle contact of
the sealing lip shall be
established.
Check for quiet Check frequently for quiet
running running of the pump with
vibration measurements tools.
en - Original instructions
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