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9
Maintenance
WARNING
Danger due to strong magnetic field
Inside the motor, there is always a strong magnetic field that can cause personal injury and
material damage in the event of incorrect dismantling!
The magnetic field may cause death to persons with electronic implants (pacemakers, insulin
pump etc.)!
NOTICE
When it is being disassembled, the entire pump should always be dismantled from the sys-
tem. It is not permitted to remove the components (control module, motor head etc.)!
9.1
Product life cycle
The product is maintenance-free. Regular inspection every 12,000 h is recommended. The intended service
life is ten years, depending on the operating conditions and the fulfilment of all the requirements in the in-
stallation and operating instructions.
9.2
Shutdown
The pump must be shut down before carrying out maintenance, repair or dismantling work.
DANGER
Electric shock!
There is a risk of fatal injury from electric shock when working on electrical devices!
•
Work on electrical components may only be carried out by qualified electricians!
•
Switch off the voltage on all-poles of the pump and secure against unauthorised restart!
•
Always deactivate the power supply from the pump and if necessary SSM and SBM!
•
Due to the presence of dangerous contact voltage, work on the module must not be started until
5 minutes have elapsed!
•
Check whether all connections (even potential-free contacts) are voltage-free!
•
The pump may still be live even in voltage-free state. The rotor induces a contact voltage, which is also
present at the motor contacts. Close the existing shut-off devices in front of and behind the pump!
•
If the control module/cable is damaged, do not operate the pump!
•
In case of impermissible removal of operating and settings elements on the control module, there is a risk
of electrical shock if inner electrical components are touched!
9.3
Dismantling/installation
Before any dismantling/installation operation, make sure that the "Shutdown" section has been taken
into consideration!
74
Installation and operating instructions • Wilo-Para MAXO/-G/-R/-Z • Ed.04/2024-11
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