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Service considerations
Review the following sections, which describe service considerations, before removing and replacing
system components.
WARNING! Do not use the front bezel as a handle or lifting point when lifting or moving the
workstation. Lifting the workstation from the front bezel, or lifting it incorrectly, could cause the
workstation to fall, causing possible injury to you and damage to the workstation. To properly and safely
lift the workstation, use the handles. If the workstation is not equipped with handles, lift from the bottom
of the workstation.
Cautions, warnings and safety precautions
For safety, review the cautions, warnings, and safety precautions before accessing the workstation
components. Also, review the Safety and Regulatory Guide that came with the workstation for more
information.
ESD information
Generating static
The following table shows that different activities generate different amounts of static electricity. Static
electricity increases as humidity decreases.
Relative humidity
Event
55% 40% 10%
Walking across carpet
Walking across vinyl floor
Motions of bench worker
7,500V
3,000V
400V
15,000V
5,000V
800V
35,000V
12,000V
6,000V
Removing bubble pack from PCB
Packing PCBs in foam-lined box
7,000V
5,000V
20,000V
11,000V
26,500V
21,000V
CAUTION: Static electricity in the amount of 700 volts might degrade a product.
60 Chapter 5 Replacing components ENWW