8. Storing the product
1. The contractor must inspect the equipment on
delivery and make sure that it is stored in such a
way that corrosion and damage are avoided.
2. If you do not operate the pump soon after arrival,
store it in a clean, dry place under slow, moderate
changes in ambient temperature.
3. Protect the pump from moisture, dust, dirt and
foreign bodies. Before and during storage we
recommend the following precautions:
a. Make sure that the bearings are filled with the
recommended grease to prevent moisture from
entering around the shaft.
b. Make sure that the inlet and outlet ports and all
other openings are covered with cardboard,
wood or masking tape to prevent foreign
objects from entering the pump.
c. If the unit is to be stored where there is no
protective covering, cover it with a tarpaulin or
waterproof material, or other suitable covering.
d. Rotate the shaft two turns every two weeks to
prevent corrosion of the bearing surfaces and
the stuffing box or shaft seal faces caused by
moisture.
4. If the pump is to be stored for more than six
months before being put into operation, apply a
suitable corrosion inhibitor to the internal pump
parts.
Make sure that the corrosion inhibitor used does
not affect the rubber parts with which it comes into
contact.
Commercially available preservatives can be used
for this purpose. Please observe the
manufacturer’s instructions for application or
removal.
5. Keep all openings covered until the pipes are
ready to be fitted to prevent water and dust from
entering the pump.
The cost of having to dismantle the pump during
startup to remove foreign objects can be very
high.
9. Servicing the product
9.1 Contaminated products
CAUTION
Biological hazard
Minor or moderate personal injury
‐ Flush the pump thoroughly with clean
water and rinse the pump parts in
water after dismantling.
The product will be classified as contaminated if it has
been used for a liquid which is injurious to health or
toxic. If you request Grundfos to service the product,
contact Grundfos with details about the pumped liquid
before returning the product for service. Otherwise,
Grundfos can refuse to accept the product for service.
The product must be cleaned thoroughly before you
return it.
Costs of returning the product are to be paid by the
customer.
9.2 Service kits
Service kits for the products, see Grundfos Product
Center in www.grundfos.com or Service Kit
Catalogue.
Related information
• www.grundfos.com
• NB Service Kit Catalogue
• NBG Service Kit Catalogue
• MTB Service Kit Catalogue
10. Maintaining the product
DANGER
Electric shock and unintended pump
start
Death or serious personal injury
‐ Before starting work on the product,
switch off the power supply. Make sure
that the power supply cannot be
accidentally switched on.
10.1 Maintenance of the pump
The pump is maintenance-free.
10.2
Maintaining the mechanical shaft seals
Mechanical shaft seals are maintenance-free,
working almost without any leakages.
• If any considerable or increasing seepage occurs,
check the mechanical shaft seal immediately.
• If the sliding surfaces are damaged, replace the
entire shaft seal. Treat mechanical shaft seals
with utmost care.
35
English (GB)
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