IBM ThinkPad R40 2681 Hardware Maintenance Manual

Also see for ThinkPad R40: Special instructions User guide User manual Setup guide Hardware Maintenance Manual

Contents

Safety informationThe following section presents the safety information thatyou need to be familiar with before servicing an IBMmobile computer.General safetyFollow these rules to ensure general safety:v Observe good housekeeping in the area of themachines during and after maintenance.v When lifting any heavy object:1. Ensure you can stand safely without slipping.2. Distribute the weight of the object equally betweenyour feet.3. Use a slow lifting force. Never move suddenly ortwist when you attempt to lift.4. Lift by standing or by pushing up with your legmuscles; this action removes the strain from themuscles in your back. Do not attempt to lift anyobject that weighs more than 16 kg (35 lb) or objectsthat you think are too heavy for you.v Do not perform any action that causes hazards to thecustomer, or that makes the equipment unsafe.v Before you start the machine, ensure that other servicerepresentatives and the customer’s personnel are not ina hazardous position.v Place removed covers and other parts in a safe place,away from all personnel, while you are servicing themachine.v Keep your toolcase away from walk areas so that otherpeople will not trip over it.v Do not wear loose clothing that can be trapped in themoving parts of a machine. Make sure that your sleevesare fastened or rolled up above your elbows. If your hairis long, fasten it.v Insert the ends of your necktie or scarf inside clothing orfasten it with a nonconductive clip, approximately 8centimeters (3 inches) from the end.v Do not wear jewelry, chains, metal-frame eyeglasses, ormetal fasteners for your clothing.Attention: Metal objects are good electricalconductors.v Wear safety glasses when you are hammering, drilling,soldering, cutting wire, attaching springs, using solvents,or working in any other conditions that might behazardous to your eyes.Safety informationIntroduction 17