HP D6000 Disk Enclosure Maintenance And Service Manual page 20

WARNING: To reduce the risk of personal injury or equipment damage when unloading a rack:
• At least two people are needed to safely unload the rack from the pallet. An empty 42U rack
can weigh as much as 115 kg (253 lb), can stand more than 2.1 m (7 ft) tall, and might
become unstable when being moved on its casters.
• Never stand in front of the rack when it is rolling down the ramp from the pallet. Always handle
the rack from both sides.
WARNING: The enclosure is very heavy. To reduce the risk of personal injury or damage to the
equipment:
Observe local occupational health and safety requirements and guidelines for manual
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material handling.
Remove all hard drives before installing or moving the enclosures.
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Use caution and get help to lift and stabilize enclosures during installation or removal,
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especially when the enclosure is not fastened to the rack.
Never stack an enclosure on top of another enclosure.
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Never place equipment on top of an enclosure.
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Never place an enclosure on a surface that cannot support up to 163.3 kg (360.0 lb).
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WARNING: To reduce the risk of personal injury or damage to the equipment, you must
adequately support enclosures during installation and removal.
WARNING: Always use at least two people to lift an enclosure into the rack. If the enclosure is
being loaded into the rack above chest level, a third person must assist with aligning the enclosure
with the rails while the other two people support the weight of the enclosure.
WARNING: Be sure to install enclosures starting from the bottom of the rack and work your way
up the rack.
These symbols, on power supplies or systems, indicate that the equipment is supplied by
multiple sources of power.
WARNING: To reduce the risk of injury from electric shock, remove all power cords to
completely disconnect power from the system.
• Each enclosure has two or more power supply cords. A single rack or cabinet may
contain more than one enclosure. Power may be supplied in a redundant fashion.
Removing any single source of power does not necessarily remove power from any
portion of the system. When performing any service other than hot-plug module
replacement, you must completely disconnect all power to that portion of the system.
When performing service procedures on enclosures, shut off the circuit breakers to
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both A and B AC power feeds and then disconnect all power cords from the outlets
before servicing.
WARNING: To reduce the risk of personal injury from hot surfaces, allow the drives and the
internal system components to cool before touching them.
WARNING: To reduce the risk of electric shock or damage to the equipment:
Never reach inside the chassis while the system is powered up.
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Perform service on system components only as instructed in the user documentation.
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WARNING: A risk of electric shock from high leakage current exists. Before connecting the AC
supply to the power enclosures, be sure that the electrical outlets are properly grounded (earthed).
Removal and replacement procedures 20