14 Component Replacement; Safety Considerations; Preventing Electrostatic Discharge; Grounding Methods To Prevent Electrostatic Damage - HP StorageWorks 12000 User Manual

14 Component Replacement

This section provides detailed instructions for replacing customer-replaceable VLS components. See
Customer Self Repair
CAUTION:
Always replace components with the same make, size, and type of component. Changing the hardware
configuration voids the warranty.

Safety Considerations

Before performing component replacement procedures, review all the safety information in this guide.

Preventing Electrostatic Discharge

To prevent damaging the system, be aware of the precautions you need to follow when setting up
the system or handling parts. A discharge of static electricity from a finger or other conductor may
damage static-sensitive devices or micro circuitry. This type of damage may reduce the life expectancy
of the device. Proper packaging and grounding techniques are necessary precautions to prevent
damage.
To prevent electrostatic damage:
• Avoid hand contact by transporting and storing products in static-safe containers, such as conductive
tubes, bags, or boxes.
• Keep electrostatic-sensitive parts in their containers until they arrive at static-free workstations.
• Cover workstations with approved static-dissipating material. Use a wrist strap connected to the
work surface and properly grounded (earthed) tools and equipment.
• Keep work area free of non-conductive materials, such as ordinary plastic assembly aids and foam
packing.
• Place parts on a grounded surface before removing them from their containers.
• Always be properly grounded when touching a static-sensitive component or assembly.
• Avoid touching pins, leads, or circuitry.

Grounding Methods to Prevent Electrostatic Damage

There are several methods for grounding. Use one or more of the following methods when handling
or installing electrostatic-sensitive parts:
• Use a wrist strap connected by a ground cord to a grounded workstation or computer chassis.
Wrist straps are flexible straps with a minimum of 1 megaohm ± 10 percent resistance in the
ground cords. To provide proper ground, wear the strap snug against the skin.
• Use heel straps, toe straps, or boot straps at standing workstations. Wear the straps on both feet
when standing on conductive floors or dissipating floor mats.
for details.
HP StorageWorks 12000 Gateway Virtual Library System User Guide 195