Operating instructions

Service and maintenance
11.8 Removing and installing hardware components
SIMATIC IPC677C
Operating Instructions, 05/2010, A5E02722710-01
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Disclaimer of liability
All technical data and approvals apply only to expansion units which are released by
SIEMENS.
Siemens disclaims any liability for impairment of functions caused by the use of third-party
devices or components.
Tools
You can perform all installation tasks on the device using Torx T6, T10, T15 and T20
screwdrivers.
11.8.2 Preventive maintenance
To maintain high system availability, we recommend the preventative replacement of those
PC components that are subject to wear. The table below indicates the intervals for this
replacement.
Component Replacement interval:
HDD 3 years
Fan 3 years
CMOS backup battery 5 years
11.8.3 Replacing the Backup Battery
Note
Batteries are wearing parts and should be replaced every five years in order to ensure
proper functioning of the PC.
To be noted before you replace the battery
CAUTION
Risk of damage!
The lithium battery may only be replaced with an identical battery or with a type
recommended by the manufacturer (Order No.: A5E00331143).
WARNING
Risk of explosion and release of harmful substances!
For this reason, do not burn lithium batteries, do not solder on the cell body, do not open,
do not short circuit, do not reverse polarity, do not heat above 100°C, dispose of correctly,
and protect against direct sunlight, dampness and dew.