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.
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| Relative humidity |
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Event | 55% | 40% | 10% |
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Walking across carpet | 7,500V | 15,000V | 35,000V |
Walking across vinyl floor | 3,000V | 5,000V | 12,000V |
Motions of bench worker | 400V | 800V | 6,000V |
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Removing bubble pack from PCB | 7,000V | 20,000V | 26,500V |
Packing PCBs in | 5,000V | 11,000V | 21,000V |
CAUTION: Static electricity in the amount of 700 volts might degrade a product.
60 Chapter 5 Replacing components | ENWW |
