Depending on the pump or system operating conditions (fluid temperature), the entire
pump can get very hot.
Allow the system and pump to cool to room temperature.
9 Maintenance
Before carrying out maintenance / cleaning and repair work, observe
chapters 8.2 "Operation", 8.3 "Decommissioning" and 9.1 "Dismantling/installation".
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".
NOTICE: When it is being disassembled, the entire pump should be dismantled from the
system as a basic principle. An extraction of components (cable, control module, motor
head, etc.) is not permitted.
9.1
Dismantling/installation
WARNING! Risk of personal injury and material damage!
Incorrect dismantling/installation can lead to injuries and damage to property.
• Risk of burns if the pump is touched!
Depending on the pump or system operating conditions (fluid temperature), the entire
pump can get 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 shut-off devices 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 shut-off devices 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 work, 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.
Installation and operating instructions Wilo-Stratos PARA/-Z
English
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