IBM I 1700 manual Electrical Safety

ŸReinstall all covers correctly before returnin machine to the customer.

Electrical Safety

Observe the following rules when working on electr equipment.

Important

Use only approved tools and test equipment. So hand tools have handles covered with a soft m that does not insulate you when working with li trical currents. Many customers have, near thei ment, rubber floor mats that contain small conduc fibers to decrease electrostatic discharges. this type of mat to protect yourself from el shock.

ŸFind the room emergency power-off (EPO) switch

disconnecting switch, or electrical outlet. I trical accident occurs, you can then operate switch or unplug the power cord quickly.

ŸDo not work alone under hazardous conditions

near equipment that has hazardous voltages.

Ÿ Disconnect all power before:

– Performing a mechanical inspection

– Working near power supplies

– Removing or installing main units

ŸBefore you start to work on the machine, un

power cord. If you cannot unplug it, ask th

to power-off the wall box that supplies powe machine and to lock the wall box in the off

ŸIf you need to work on a machine that has

electrical circuits, observe the following pre

–Ensure that another person, familiar with power-off controls, is near you.

Attention: 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 hand in your pocket or behind your back

Attention: There must be a complete circui cause electrical shock. By observing the rule, you may prevent a current from pas through your body.

–When using testers, set the controls corr

and use the approved probe leads and a ries for that tester.

–Stand on suitable rubber mats (obtained

if necessary) to insulate you from ground as metal floor strips and machine frames.

ThinkPad 390X / i 1700 13HMM