HP ProLiant BladeSystem p-Class System Maintenance and Service Guide

Removal and Replacement Procedures 30
WARNING! Always use at least two people to lift a power supply enclosure or server blade 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! To reduce the risk of personal injury or damage to the equipment, be sure that:
• The leveling jacks of the rack are extended to the floor.
• The full weight of the rack rests on the leveling jacks.
• The stabilizers are attached to the rack if it is a single rack installation.
• The racks are coupled in multiple rack installations.
WARNING! When installing the server blade enclosure in a telco rack, be sure that the rack frame is
adequately secured to the building structure.
WARNING! To reduce the risk of personal injury or damage to the equipment, at least two people are needed
to safely unload the rack from the pallet. An empty 42U rack weighs 115 kg (253 lb), is over 2.1 m (7 ft) tall,
and may become unstable when being moved on its casters. Do not only stand in front of the rack as it rolls
down the ramp from the pallet, but also handle the rack from both sides.
WARNING! To reduce the risk of shock or injury from high-current electrical energy, do not reach into a server
blade enclosure once it has been installed in a rack and connected to a working rack bus bar. Do not touch
the power or data backplanes within the server blade enclosure once it has been installed.
WARNING! To reduce the risk of shock or injury from high-current electrical energy, do not reach into a power
supply enclosure once it has been installed in a rack and connected to a power source. Do not touch the
connectors within the power supply enclosure once it has been installed.
WARNING! To reduce the risk of shock or injury from high-current electrical energy, do not open any access
covers on the rack bus bar after it has been connected to a power source.
CAUTION: Protect equipment from power fluctuations and temporary interruptions with a regulating UPS
device or battery bank. This device protects the hardware from damage caused by power surges and voltage
spikes and keeps the system in operation during a power failure.
CAUTION: Always ensure that equipment is properly grounded before beginning any installation procedure.
Electrostatic discharge resulting from improper grounding can damage electronic components. For more
information, refer to the setup and installation guide.
Power Components Warnings and Cautions
WARNING! A licensed electrician or trained service personnel familiar with high-power circuitry must install
this equipment.
WARNING! Be sure power to all components is off. Be sure that the power enclosure and hot-plug power
supply LEDs are not illuminated.