RF Tech World Key Quick Manual page 37

Electrical hazards: direct contact with live parts within the electrical
cabinet.
All the operations must be carried out by a qualified technician .
Caution:
 Service the machine only after the main power supply has been switched off.
Hazards linked with battery replacement
Explosion hazard should the battery supplied with the appliance be
replaced with another battery which is incompatible.
Caution:
 The battery installed in the device has been dimensioned to last as long as the
appliance. If the battery presents any problems, do not try to replace it but contact
the Comestero after-sale service.
Hazards during machine maintenance
EN
37