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General Safety
Follow these rules to ensure general safety:
• Observe good housekeeping in the area of the machines during and after maintenance.
• Do not perform any action that causes hazards to the customer, or makes the equipment unsafe.
• Keep your tool case away from walk areas so that other people will not trip over it.
• Do not wear loose clothing that can be trapped in the moving parts of a machine. Ensure that
your sleeves are fastened or rolled up above your elbows. If your hair is long, fasten it.
• Insert the ends of your necktie or scarf inside clothing, or fasten it with a nonconductive clip,
approximately 8 centimeters (3 inches) from the end.
• Do not wear jewelry, chains, metal-frame eyeglasses, or metal fasteners for your clothing.
Remember: Metal objects are good electrical conductors.
• Wear safety glasses when you are: hammering, drilling soldering, cutting wire, attaching
springs, using solvents, or working in any other conditions that might be hazardous to your eyes.
• After service, reinstall all safety shields, guards, labels, and ground wires. Replace any safety
device that is worn or defective.
• Reinstall all covers correctly before returning the machine to the customer.
Electrical Safety
xxCAUTION:
Electrical current from power, telephone, and communication cables can be hazardous. To
avoid personal injury or equipment damage, disconnect the server system power cords,
telecommunication systems, networks, and modems before you open the server covers, unless
instructed otherwise in the installation and configuration procedures.
Important: Disconnect all power before performing a mechanical
inspection. Observe the following rules when working on electrical
equipment.
• Before you start to work on the machine, unplug the power cord or power-off at the wall box that
supplies power to the machine and to lock the wall box in the off position.
• Before you start to work on the machine, unplug the power cord. If you cannot unplug it, ask the
customer to power-off the wall box (that supplies power to the machine) and to lock the wall box
in the off position.
• Regularly inspect and maintain your electrical hand tools for safe operational condition.
• Do not use worn or broken tools and testers.
• Never assume that power has been disconnected from a circuit. First, check that it has been
powered-off.
• Always look carefully for possible hazards in your work area. Examples of these hazards are
moist floors, nongrounded power extension cables, power surges, and missing safety grounds.
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SBCEFCSW/SBFCM: HMM and Troubleshooting Guide
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