IBM ThinkPad 340 Series Hardware Maintenance Manual

Also see for 360: Specifications Hardware Maintenance Manual Operating guide User guide Manual

Regularly inspect and maintain your electrical handtools for safe operational condition. Do not use worn or broken tools and testers.Never assume that power has been disconnectedfrom a circuit. First,check that it has beenpowered-off. Always look carefully for possible hazards in yourwork area. Examples of these hazards are moistfloors, nongrounded power extension cables, powersurges, and missing safety grounds. Do not touch live electrical circuits with the reflectivesurface of a plastic dental mirror. The surface isconductive; such touching can cause personal injuryand machine damage. Do not service the following partswith the power onwhen they are removed from their normal operatingplaces in a machine:– Power supply units– Pumps– Blowers and fans– Motor generatorsand similar units. (This practice ensures correctgrounding of the units.) If an electrical accident occurs:– Use caution; do not become a victimyourself.– Switch off power.– Send another person to get medical aid.Safety Inspection GuideThe intent of this inspection guide is to assist you inidentifying potentially unsafe conditions on these products.Each machine, as it was designed and built, had requiredsafety items installed to protect users and servicepersonnel from injury. This guide addresses only thoseitems. However, good judgment should be used to identifypotential safety hazards due to attachment of non-IBMfeatures or options not covered by this inspection guide.If any unsafe conditions are present, you must determinehow serious the apparent hazard could be and whetheryou can continue without first correcting the problem.Consider these conditions and the safety hazards theypresent: Electrical hazards, especially primary power (primaryvoltage on the frame can cause serious or fatalelectrical shock). Explosive hazards, such as a damaged CRT face orbulging capacitor Mechanical hazards, such as loose or missinghardware16 IBM Mobile Systems HMM