Grundfos SE - Storing the Product; Servicing and Maintaining the Product

Make sure the pump is connected to an
overcurrent protective device.
No automatic disconnection device is
applied in the product.
DANGER
Electric shock
Death or serious personal injury
‐ Make sure the pump is grounded.
WARNING
Electric shock
Death or serious personal injury
‐ Make sure the connections are correct.
CAUTION
Hearing impairment
Minor or moderate personal injury
‐ Use hearing protection when working
nearby an environment with a sound
pressure level above 70 dB(A).
In case of abnormal noise or vibrations,
stop the pump immediately. Do not restart
the pump until the cause of the fault is
identified and eliminated.
The pump may only be started for a short
period without being submerged for
checking the direction of rotation. The
correct direction is highlighted on the
pump.
Storage
WARNING
Crushing hazard
Death or serious personal injury
‐ Do not turn the impeller by hand.
Always use an appropriate tool.
On pumps fitted with guide vane, be
careful not to damage the guide vane
when turning the impeller.
Maintenance and service
The maintenance and service work on
explosion-proof pumps must be carried out
by Grundfos or an authorised service
workshop.
Do not open the pump if the ambient
atmosphere is explosive or dusty.
DANGER
Electric shock
Death or serious personal injury
‐ Before starting any work on the
product, make sure that the power
supply is switched off and it cannot be
switched on unintentionally.
CAUTION
Crushing hazard
Minor or moderate personal injury
‐ Make sure the pump cannot roll or fall
over.
DANGER
Electric shock
Death or serious personal injury
‐ Make sure the pump is grounded.
CAUTION
Sharp element
Minor or moderate personal injury
‐ Be careful of sharp edges. Wear
protective gloves.
Maintenance and service must be carried
out by qualified persons.
Change the motor liquid after 12.000
operating hours or 3 years, whichever
comes first.
Disposal of the motor liquid must comply
with local regulations.
Replace the ball bearings at least every
25.000 operating hours.
Dry-running switch check
Test the dry-running switch during pump
inspections. During the test, the dry-running switch
must stay in place. If the sensor does not work
correctly, it must be replaced. To test the sensor,
measure the resistance between the wire ends and
compare the values to the table below.
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English (GB)