Wilo Stratos PARA/-Z Série Notice De Montage Et De Mise En Service page 45

9.1 Dismantling/installation
WARNING! Risk of injury and damage to property!
Incorrect dismantling/installation can lead to injuries and damage to property.
• Touching the pump can cause burns!
Depending on the pump or system operating conditions (fluid temperature), the entire
pump can become very hot.
• At high fluid temperatures and system pressures there is risk of scalding due to escap-
ing hot fluid.
Before dismantling the motor, close the existing check valves on both sides of the
pump, allow the pump to cool down to ambient temperature, and drain the isolated
branch of the system. If no check valves are fitted, drain the system.
• Observe the manufacturer's information and safety data sheets on possible additives
in the unit.
• Risk of injury due to the pump falling when the threaded pipe union has been undone.
Comply with national regulations for accident prevention and also with the operator's
internal works, company and safety regulations. If necessary, wear protective clothing
and equipment!
• It is not permitted to remove the control module and/or motor head!
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 not permitted to remove the rotor from the motor housing!
• There is a crushing hazard! If the rotor is pulled from the motor without permission, it
may be suddenly pulled back into its initial position by the strong magnetic field.
• If the unit consisting of impeller, bearing plate and rotor is pulled out of the motor
without permission, 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.
This 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.
DANGER! Risk of fatal electrical shock!
Even without the module (without electrical connection), there may be dangerous
contact voltage at the motor contacts.
It is not permissible to dismantle the module!
• For the commissioning of the pump, see Chapter 8.
Installation and operating instructions Wilo-Stratos PARA/-Z
English
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