Maintenance; Dismantling / Installation - Wilo Stratos Notice De Montage Et De Mise En Service

9 Maintenance

Before carrying out maintenance / cleaning and repair work, observe Chapters
8.5 "Operation" and 8.6 "Decommissioning".
The safety instructions in Chapter 2.6 and Chapter 7 must be complied with.
After completing maintenance and repair work, install and connect the pump
according to Chapter 7 "Installation and electrical connection". Switch on the
pump according to Chapter 8 "Commissioning".

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 operating status of
the pump or unit (fluid temperature), the entire pump can become very hot.
• At high fluid temperatures and system pressures there is risk of scalding due
to escaping hot fluid.
Before dismantling the motor, close the existing check valves on both sides
of the pump, allow the pump to cool down to room temperature, and drain
the isolated branch of the system. If no check valves are fitted, drain the
entire system.
• Observe the manufacturer's information and safety data sheets on possible
additives in the unit.
• Risk of injury due to the motor/pump falling when the fastening screws have
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!
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.
Installation and operating instructions Wilo-Stratos/-D/-Z/-ZD
English
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