SIMATIC Rack PC 847B
Operating Instructions, 06/2008, A5E02203168-01
75
Maintenance and service
11
11.1
Removing and installing hardware components
11.1.1
Repairs
Repairing components
Only authorized technical personnel are allowed to repair device components.
WARNING
Unauthorized opening and improper repairs may lead to material damage and hazards to
users.
●
Always disconnect the power connector before you open the device.
●
Install only system expansions which are designed for this computer. Installation of other
expansions may damage the system or violate safety requirements and RF interference
suppression regulations. Contact Technical Support or your local sales department to find
out which system expansions are suitable for installation.
If you install or exchange system expansions and damage your device, the warranty
becomes void.
NOTICE
Observe the ESD instructions.
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 T10 and T20 drivers, a 4.5-
mm hexagonal wrench (for the interface interlock on the rear panel) and a side cutter.