Lenovo 1304XF8 Manual Do Utilizador

Observe the following rules when working on electrical equipments.

Use only approved tools and test equipments. Some hand tools have handles 

covered with a soft material that does not insulate you when working with live 

electrical currents.
Many customers have rubber floor mats near their machines that contain small 

conductive fibers to decrease electrostatic discharges. Do not use such kind of mat 

to protect yourself from electrical shock. 

Find the room emergency power-off (EPO) switch, disconnecting the switch 

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or electrical outlet. If an electrical accident occurs, you can then operate the 

switch or unplug the power cord quickly. 
Do not work alone under hazardous conditions or near the equipment that 

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has hazardous voltages.
Disconnect all power before:

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–  Performing a mechanical inspection
–  Working near power supplies
–  Removing or installing main units

Before you start to work on the machine, unplug the power cord. If you 

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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.
If you need to work on a machine that has exposed electrical circuits, 

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observe the following precautions:

–  Ensure that another person, familiar with the 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 other hand in your pocket or behind your back. 

 

Attention: An electrical shock can occur only when there is a complete 

circuit. 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; 

instructions for these precautions are in the safety sections of maintenance 

information. Be extremely careful when you measure the  high voltages.

Regularly inspect and maintain your electrical hand tools for safe operational 

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condition. 
Do not use worn or broken tools and testers.

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Never assume that power has been disconnected from a circuit. First, check 

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it to make sure that it has been powered off.