Observe the special safety precautions when work with very high voltages; these instruction the safety sections of maintenance information. extreme care when measuring high voltages. Re larly inspect and maintain your electrical hand for safe operational condition.
Ÿ Do not use worn or broken tools and testers.
ŸNever assume that power has been disconnected from a circuit. First, check that it has be
ŸAlways look carefully for possible hazards in
work area. Examples of these hazards are moi floors, nongrounded power extension cables, powe surges, and missing safety grounds.
ŸDo not touch live electrical circuits with the surface of a plastic dental mirror. The surf conductive; such touching can cause personal in and machine damage.
ŸDo not service the following parts with the p when they are removed from their normal opera
places in a machine:
– Power supply units
–Pumps
– Blowers and fans
–Motor generators
and similar units. (This practice ensures co grounding of the units.)
Ÿ If an electrical accident occurs:
– Use caution; do not become a victim your- self.
– Switch off power.
–Send another person to get medical aid.
Safety Inspection Guide
The intent of this inspection guide is to assist fying potentially unsafe conditions on these produc machine, as it was designed and built, had requ items installed to protect users and service per injury. This guide addresses only those items. H good judgment should be used to identify potenti hazards due to attachment of
If | any | unsafe | conditions | are | present, you must | ||
how | serious | the | apparent | hazard could be and w | |||
you | can | continue | without | first | correcting | the pro | |
sider these | conditions and the | safety | hazards |
ŸElectrical hazards, especially primary power ( voltage on the frame can cause serious or f trical shock).
14 ThinkPad 390X / i 1700 HMM