MAINTENANCE 90
16.1 Safety information about repairs
DANGER!
Before beginning any work, ensure that the system is free of voltage and remains so
for the duration of the work. Observe the safety instructions in the section 4 Safety in-
structions!
WARNING!
Risk of injury due to improperly performed maintenance work!
Improper maintenance can result in serious personal injury or property damage.
► Ensure that there is sufficient clearance before starting work.
► Pay attention to order and cleanliness in the workplace!
► Follow the procedure according to4 Safety instructions before starting work.
WARNING!
Danger due to insufficiently qualified persons!
Insufficiently qualified persons cannot assess the risks involved in operating the sys-
tem and expose themselves and others to the risk of serious or fatal injuries.
► Have all work performed only by persons qualified for the task.
► Inadequately qualified persons should be kept away from the work area.
CAUTION!
Tripping hazard due to protruding parts
There is a tripping hazard during the work.
► Watch out for steps and holes in the floor when walking inside the work area and
the danger zone. There must be no loose objects in the work area.
CAUTION!
Danger due hot surfaces at the controller.
Light injuries
► It must be noted that the heat sink and brake resistor become hot during opera-
tion. Be sure to let the components cool down before performing any work on
them.
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