Starting Up The Product; Servicing The Product; Contaminated Products; Maintaining The Product - Grundfos MTD Montage- Und Betriebsanleitung

5. Starting up the product

WARNING
Rotating shaft
Death or serious personal injury
- Be sure that the coupling guard is in
place before starting the pump.
CAUTION
Hot surface
Minor or moderate personal injury
- Make sure that persons cannot
accidentally come into contact with the
hot surface.
The pump can be started against an open or a
closed outlet valve.
Before starting the pump:
• Make sure that all pipe connections are tight.
• Make sure that the pump is immersed to the
recommended level.
• Make sure that chip trays are not blocked by
impurities.
Start the pump as follows:
1. See the correct direction of rotation of the pump
on the motor fan cover. When seen from the top,
the pump must rotate counterclockwise.
2. Start the pump and check the direction of
rotation.
Fig. 5 Motor fan cover with indication of the
correct direction of rotation
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6. Servicing the product

6.1 Contaminated products

CAUTION
Biological hazard
Minor or moderate personal injury
- Wear personal protective equipment
and take necessary protective
measures when handling the product.
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 liquid before
returning the product for service. Otherwise,
Grundfos can refuse to accept the product for
service.
Any application for service must include details
about the liquid.
Clean the product in the best possible way before
you return it.
Costs of returning the product are to be paid by the
customer.

6.2 Maintaining the product

6.2.1 Lubrication and maintenance

Pumps installed in accordance with these
instructions require very little maintenance.
The motor ball bearings are grease-packed and
sealed for life. No further lubrication is necessary.
If you need to replace a ball bearing, change the
bearing seal.
6.2.2 Filters
Clean chip trays, filters, etc. at regular intervals to
ensure a correct flow of liquid. This will also increase
the pump life.

6.2.3 Periodic checks

Make the following checks at regular intervals,
depending on the conditions and time of operation.
• Check the quantity of liquid and the operating
pressure.
• Check that there are no leaks.
• Check that the motor is not overheating.
• Check the tripping of the motor-protective circuit
breaker.
• Check that all control devices are operating
satisfactorily.
If the above checks do not reveal any abnormal
operating details, no further checks are necessary.
Should any faults be found, see section
finding the product.
7. Fault