Grundfos AMG Serie Instrucciones De Instalación Y Funcionamiento página 28

8. Service
8.1 Maintenance
Before starting work on the mixer or flow-
maker:
• make sure that the fuses have been re-
moved or the main switch has been
switched off
• make sure that the power supply can-
not be switched on unintentionally
• make sure all rotating parts have stop-
ped moving.
Observe all regulations applying to mixers
installed in potentially explosive environ-
ments.
Make sure that no work is carried out in
potentially explosive environments.
8.2 Repairing the product
Before starting work on mixers or flowmakers used
in contagious/toxic liquids, carry out thorough
cleaning and venting according to local regulations.
8.2.1 Explosion-proof mixers and flowmakers
Explosion-proof mixers and flowmakers must be
serviced and repaired by Grundfos or anauthorised
service workshop.
Service work has to be carried out according to the
EN 60079-19 standard.
Spare parts
Damaged mixer or flowmaker parts must always be
replaced by new and approved ones.
The details on the nameplate are required to order
spare parts.
8.2.2 Contaminated mixer or flowmaker
WARNING
Biological hazard
Death or serious personal injury
‐
The product is classified as contamina-
ted, if it is used for contagious or toxic
liquid.
Before returning the product for service, contact
Grundfos with details about the liquid. Otherwise,
Grundfos can deny to service the product.
Any application for service must include details about
the liquid.
Clean the product the best possible way before
returning it. Possible costs of returning the mixer or
flowmaker are paid by the customer.
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