v Do not perform any action that causes hazards to the
customer, or that makes the equipment unsafe.
v Before you start the machine, ensure that other service
representatives and the customer's personnel are not in
a hazardous position.
v Place removed covers and other parts in a safe place,
away from all personnel, while you are servicing the
v Keep your tool case away from walk areas so that other
people will not trip over it.
v 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.
v 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.
v Do not wear jewelry, chains, metal-frame eyeglasses, or
metal fasteners for your clothing.
v 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.
v After service, reinstall all safety shields, guards, labels,
and ground wires. Replace any safety device that is
worn or defective.
v Reinstall all covers correctly before returning the
machine to the customer.
Observe the following rules when working on electrical
Use only approved tools and test equipment. Some
hand tools have handles covered with a soft
material that does not insulate you when working
with live electrical currents. Many customers have,
near their equipment, rubber floor mats that contain
small conductive fibers to decrease electrostatic
discharges. Do not use this type of mat to protect
yourself from electrical shock.
v Find the room emergency power-off (EPO) switch,
disconnecting switch, or electrical outlet. If an electrical
accident occurs, you can then operate the switch or
unplug the power cord quickly.
ThinkPad R30 and R31 HMM
Metal objects are good electrical