WHA-GW-*
Maintenance and repair
22
1981
2011
-0
7
87
7
Maintenance and repair
7.1
WHA-GW*
The national requirements apply to maintenance, servicing, and inspection of associated
apparatus.
No maintenance is necessary if the devices are operated properly, observing the mounting
instructions and ambient conditions.
The devices must not be repaired, changed or manipulated. If there is a defect, the product
must always be replaced with an original device.