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Safety information
The following section presents the safety information that
you need to be familiar with before servicing an IBM
mobile computer.
General safety
Follow these rules to ensure general safety:
v
Observe good housekeeping in the area of the
machines 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 between
your feet.
3. Use a slow lifting force. Never move suddenly or
twist when you attempt to lift.
4. Lift by standing or by pushing up with your leg
muscles; this action removes the strain from the
muscles in your back. Do not attempt to lift any
object that weighs more than 16 kg (35 lb) or objects
that you think are too heavy for you.
v
Do not perform any action that causes hazards to the
customer, or that makes the equipment unsafe.
v
Before you start the machine, ensure that other service
representatives and the customer’s personnel are not in
a hazardous position.
v
Place removed covers and other parts in a safe place,
away from all personnel, while you are servicing the
machine.
v
Keep your toolcase away from walk areas so that other
people will not trip over it.
v
Do not wear loose clothing that can be trapped in the
moving parts of a machine. Make sure that your sleeves
are fastened or rolled up above your elbows. If your hair
is long, fasten it.
v
Insert the ends of your necktie or scarf inside clothing or
fasten it with a nonconductive clip, approximately 8
centimeters (3 inches) from the end.
v
Do not wear jewelry, chains, metal-frame eyeglasses, or
metal fasteners for your clothing.
Attention:
Metal objects are good electrical
conductors.
v
Wear safety glasses when you are hammering, drilling,
soldering, cutting wire, attaching springs, using solvents,
or working in any other conditions that might be
hazardous to your eyes.
Safety information
Introduction
13
Summary of Contents for ThinkPad T21
Page 4: ...iv ThinkPad T20 T21 T22 T23 MT 2647 2648...
Page 44: ...Checkout guide 38 ThinkPad T20 T21 T22 T23 MT 2647 2648...
Page 83: ...9 8 7 7 8 9 10 9 continued Removing and replacing a FRU ThinkPad T20 T21 T22 and T23 series 77...
Page 132: ...6 5 4 7 5 3 continued Removing and replacing a FRU 126 ThinkPad T20 T21 T22 T23 MT 2647 2648...
Page 181: ...Notices ThinkPad T20 T21 T22 and T23 series 175...
Page 182: ...Part Number 62P9631 1P P N 62P9631...