Fronius Exento HighVac Manual De Instrucciones página 59

2.5 Safety instructions for maintenance/troubleshooting
Service and maintenance doors must be freely accessible at all times.
Setting up, maintenance and repair work and troubleshooting must only
be performed when the product is switched off.
Always tighten bolt connections that have been loosened during repair
work. If specified, tighten the relevant bolts with a torque wrench.
In particular, protect connections and screw connections from dirt or care
products at the beginning of maintenance/repair/care
The time frames for periodic testing/inspections stipulated or specified in
the operating instructions must be observed.
Before disassembling, mark the parts that belong together.
2.6 Notes regarding special types of hazard
DANGER
Danger of electric shock!
Any work on the electrical equipment of the product must only be
performed by a qualified electrician or by operating personnel under the
direction and supervision of a qualified electrician in accordance with
electronic regulations.
Before opening the product, pull the plug, if available, and secure it
against accidental switch-on.
For faults with the product's electrical energy supply, immediately switch
the product off at the on/off switch and if available, also pull the plug.
Use only original fuses with the prescribed amperage.
Electrical components, on which inspection, maintenance and repair
work must be carried out, must be disconnected from the power supply.
Secure equipment that has been used for disconnection against
unintentional or automatic reconnection. Firstly check that no voltage is
present in activated, electrical components, then isolate adjacent
components under voltage. When making repairs, ensure that
constructive characteristics are not altered in a way that reduces safety.
Check cables regularly for damage and replace if necessary.
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EN