96/108 Bosch Rexroth AG CS351 | 3609929B45/2014-09
Maintenance and repair
Changing the battery of the Compact
System
When switched off, the installed battery has
a service life of approximately four years
from the date of production. The service life
increases accordingly when under opera-
tion. It is only subject to self-discharge
when under operation. If the battery has run
down, an error message is generated.
The tightening controller has a built-in bat-
tery-buffered RAM for storing the tightening
results. The data is saved in the RAM due to
the battery if the power fails. The system
clock is also supplied by the battery. The
above mentioned data, as well as date and
time, will be lost if the battery is discharged.
Proceed as follows to exchange the battery:
• Carry out data storage (when the battery
is exchanged, all data stored in the me-
mory module is lost).
• Open and remove the front cover.
• Remove the four bolts on the display unit.
Hold the display unit and swivel it to the
left. Do not let the ribbon cable tighten or
come loose!
Fig. 38: Exchanging the battery
DANGER
Electrical voltages!
Electrocution
Do not carry out maintenance work on
the tightening channel unless the
Compact System has been switched
off and the power plug disconnected.
Protect the system from being swit-
ched on again.
Wait until the discharging time (at
least 90 seconds) has elapsed.
CAUTION
Risk of damage to persons and pro-
perty!
To protect the assembly and the sys-
tem components,
measures against damage caused by
electrostatic
discharge (ESD protection) must be
implemented for this assembly work.
CS351_zweispaltig - D.book Seite 96 Donnerstag, 2. Oktober 2014 8:36 08
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