Technical information
Safety instructions
1-16
1070 080 059-101 (2001.04) GB
1.12 Maintenance, repair
DANGEROUS ELECTRICAL VOLTAGE
Prior to any maintenance work - unless described otherwise - the
system must always be switched off!
In the event of necessary measurement or test procedures on the ac-
tive system, these have to be performed by skilled electrical person-
nel.
In any case, suitable insulated tools must be used!
DANGEROUS ELECTRICAL VOLTAGE
If you need to open the MF inverter housing, disconnect the system
from supply and wait at least 5 minutes before you open the housing
so as to ensure that the MF inverter is deîenergized.
DANGER
Danger of life through inappropriate EMERGENCY-STOP facilities!
EMERGENCY-STOP facilities must be operative in all modes of the
system. Releasing the EMERGENCY-STOP facility must by no means
result in an uncontrolled restart of the system! First check the EMER-
GENCY-STOP circuit, then switch the unit on!
DANGER
Danger of explosion of batteries!
Do not forcefully open batteries, do not attempt to charge, solder or
incinerate the battery.
Empty batteries should always be replaced by new ones!
The applicable regulations on the disposal of empty batteries or ac-
cumulators must be observed.
DANGER
The right to perform repair/maintenance work on the components of
the medium-frequency inverters is reserved to the BOSCH service
department or to repair/maintenance units authorized by BOSCH!
CAUTION
Only use spare parts approved by BOSCH!