Recommended Tools; Warnings And Precautions; Electrostatic Discharge Information; Grounding Methods - HP 418800-B21 - StorageWorks Modular Smart Array 70 Storage Enclosure Maintenance And Service Manual

Recommended tools

When replacing certain components, such as the power on/off module, the following tools may be
necessary:
Torx T-10 and Torx T-15 screwdrivers
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Phillips screwdriver
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Warnings and precautions

Electrostatic discharge information

To prevent damage to 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
system boards or other static-sensitive devices. This type of damage may reduce the life expectancy of the
device.
To prevent electrostatic damage, observe the following precautions:
Avoid hand contact by transporting 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 stations.
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Cover workstations with approved static-dissipating material. Provide a wrist strap connected to the
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work surface and properly grounded (earthed) tools and equipment.
Keep work area free of nonconducting materials such as ordinary plastic assembly aids and foam
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packing.
Place parts on a grounded surface before removing them from their containers.
•
Avoid touching pins, leads, or circuitry.
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Always make sure you are properly grounded when touching a static-sensitive component or
•
assembly.
Always place hard drives with the Printed Circuit Board (PCB) side down.
•
Use conductive field service tools.
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Grounding methods

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 megohm ±10% 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.
Use conductive field service tools.
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Use a portable field service kit with a folding static-dissipating work mat.
•
If you do not have any of the suggested equipment for proper grounding, have an Authorized HP Reseller
install the part.
NOTE:
For more information on static electricity or assistance with product installation, contact your HP
Authorized Reseller.
Customer replaceable components 21