English
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WILO SE 11/2015
• Guards protecting against touching moving components (such as the coupling)
must not be removed whilst the product is in operation.
• Leakages (e.g. from a shaft seal) of hazardous fluids (e.g. explosive, toxic or hot)
must be led away so that no danger to persons or to the environment arises.
National statutory provisions are to be complied with.
• Danger from electrical current must be eliminated. Local directives or general
directives [e.g. IEC, VDE etc.] and local energy supply companies must be
adhered to.
• Faults of electronic devices due to electromagnetic fields Electromagnetic
fields are created during the operation of pumps with frequency converter.
Interference of electronic devices may be the result. The result may be a device
malfunction, which can result in damage to the health or even death, e.g. of per-
sons carrying implanted active or passive medical devices.
Therefore, during operation the presence of any persons e.g. with cardiac pace-
makers in the vicinity of the unit/pump should be prohibited. With magnetic or
electronic data media, the loss of data is possible.
WARNING! Danger due to strong magnetic field!
Inside the machine there is always a strong magnetic field that can cause
injury and damage to property in the event of incorrect dismantling.
• It is only permitted to have the rotor removed from the motor housing by
qualified personnel!
• There is a crushing hazard! When pulling the rotor out of the motor, it may be
suddenly pulled back into its initial position by the strong magnetic field.
• If the unit consisting of impeller, bearing shield and rotor is pulled out of the
motor, persons with medical aids, such as cardiac pacemakers, insulin pumps,
hearing aids, implants or similar are at risk. Death, severe injury and damage
to property may be the result. For such persons, a professional medical
assessment is always necessary.
• Electronic devices may be impaired functionally or damaged by the strong
magnetic field of the rotor.
• If the rotor is outside the motor, magnetic objects may be attracted very
suddenly. That can result in injury and damage to property.
In assembled condition, the rotor's magnetic field is guided in the motor's iron
core. There is therefore no harmful magnetic field outside the machine.
2.6 Safety instructions for installation and maintenance work
The operator must ensure that all installation and maintenance work is carried
out by authorized and qualified personnel, who are sufficiently informed from
their own detailed study of the operating instructions.
Work to the product/unit must only be carried out when at a standstill. It is man-
datory that the procedure described in the installation and operating instruc-
tions for shutting down the product/unit be complied with.
Immediately on conclusion of the work, all safety and protective devices must
be put back in position and/or re-commissioned.
