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9.4
Removal
10
Maintenance and repair
10.1
Maintenance intervals
10.2
Maintenance tasks
32
DANGER
Risk of fatal injury due to electrical current!
Improper conduct when carrying out electrical work can lead to death
due to electric shock!
• Electrical work must be carried out by a qualified electrician!
• Observe local regulations!
✓
Decommissioning performed.
✓
Mains connection is switched so that it is voltage-free and safeguarded against being
activated by unauthorised persons.
✓
The power connection for fault and run signals is switched so that it is voltage-free
and safeguarded against being activated by unauthorised persons.
1.
Open the switchgear.
2.
Disconnect all connection cables and pull them out through the threaded cable con-
nection.
3.
Close off the ends of the connection cables watertight.
4.
Seal threaded cable connections watertight.
5.
Support the switchgear (e.g. get a second person to help).
6.
Loosen the switchgear fastening screws and remove the switchgear from the struc-
ture.
▶
Switchgear removed. Observe the following for storage!
DANGER
Risk of fatal injury due to electrical current!
Improper conduct when carrying out electrical work can lead to death
due to electric shock!
• Electrical work must be carried out by a qualified electrician!
• Observe local regulations!
NOTICE
Unauthorised work or structural changes are prohibited!
Only maintenance and repair work described in this manual may be car-
ried out. All other works and any alterations to the construction may only
be carried out by the manufacturer.
Regular
•
Clean switchgear.
Annually
•
Check electro-mechanical components for wear.
After 10 years
•
General overhaul
Cleaning switchgear
✓
Switch off switchgear.
1.
Clean switchgear with a damp cotton cloth.
Do not use any aggressive or scouring cleaners or fluids!
Check electrical-mechanical components for wear
Have electrical-mechanical components checked for wear by an electrician. If wear is as-
certained, have the affected components replaced by an electrician or by the Wilo Cus-
tomer Service.
Installation and operating instructions • Wilo-Control MS-L • Ed.02/2022-05
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