Safety Inspection Guide - IBM eserver xSeries 232 8668 Hardware Maintenance Manual

v Before you start to work on the machine, unplug the power cord. If you cannot
v If you need to work on a machine that has exposed electrical circuits, observe
v Regularly inspect and maintain your electrical hand tools for safe operational
v Do not use worn or broken tools and testers.
v Never assume that power has been disconnected from a circuit. First, check that it
v Always look carefully for possible hazards in your work area. Examples of these
v Do not touch live electrical circuits with the reflective surface of a plastic dental
v Do not service the following parts with the power on when they are removed
v If an electrical accident occurs:

Safety inspection guide

The intent of this inspection guide is to assist you in identifying potentially unsafe
conditions on these products. Each machine, as it was designed and built, had
required safety items installed to protect users and service personnel from injury.
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Hardware Maintenance Manual: Type 8668
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.
the following precautions:
– Ensure that another person, familiar with the power-off controls, is near you.
Remember: Another person must be there to switch off the power, if
necessary.
– Use only one hand when working with powered-on electrical equipment;
keep the other hand in your pocket or behind your back.
Remember: There must be a complete circuit to cause electrical shock. By
observing the above rule, you may prevent a current from passing through
your body.
– When using testers, set the controls correctly and use the approved probe
leads and accessories for that tester.
– Stand on suitable rubber mats (obtained locally, if necessary) to insulate you
from grounds such as metal floor strips and machine frames.
Observe the special safety precautions when you work with very high voltages;
these instructions are in the safety sections of maintenance information. Use
extreme care when measuring high voltages.
condition.
has been powered-off.
hazards are moist floors, nongrounded power extension cables, power surges,
and missing safety grounds.
mirror. The surface is conductive; such touching can cause personal injury and
machine damage.
from their normal operating places in a machine:
– Power supply units
– Pumps
– Blowers and fans
– Motor generators
and similar units. (This practice ensures correct grounding of the units.)
– Use caution; do not become a victim yourself.
– Switch off power.
– Send another person to get medical aid.