ProLiant DL740 Server Maintenance and Service Guide

Table Of Contents
Service Preparation
Rack Warnings and Precautions
WARNING: To reduce the risk of personal injury or damage to the equipment, be
sure that:
The leveling jacks 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.
Only one component is extended at a time. A rack can become unstable if more
than one component is extended for any reason.
CAUTION: Always begin by mounting the heaviest item in the bottom of the rack. Continue to
populate the rack from the bottom to the top.
Server Warnings and Precautions
48-61 kg
105-135 lb
WARNING: The HP ProLiant DL740 server weighs 61 kilograms (135 pounds) when
fully assembled. To reduce the risk of personal injury or damage to the equipment:
Observe local health and safety requirements and guidelines for manual material
handling.
Obtain adequate assistance to lift and stabilize the product during installation or
removal.
Remove all modules and power supplies to reduce the overall weight of the
product.
WARNING: To reduce the risk of personal injury from electric shock and hazardous
energy levels, only authorized service technicians should attempt to repair this
equipment. Improper repairs could create hazardous conditions.
WARNING: To reduce the risk of personal injury from hazardous energy or damage to
the equipment when working on energized servers:
Remove all watches, rings, and any other loose-fitting jewelry.
Do not use conductive tools inside the server that could bridge live parts.
WARNING: To reduce the risk of electric shock or damage to the equipment:
Do not disable the power cord grounding plug. The grounding plug is an important
safety feature.
Plug the power cord into a grounded electrical outlet that is easily accessible at all
times.
Install the power supply before connecting the power cord to the power supply.
Unplug the power cord before removing the power supply from the server.
If the system has multiple power supplies, disconnect power from the system by
unplugging all power cords from the power supplies.
2-2 HP ProLiant DL740 Server Maintenance and Service Guide
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