IBM PC 300 Maintenance Service Manual page 7

Caution:
When replacing the battery, use only IBM Part Number 36L9077 or an equivalent type battery recommended by the
manufacturer. If your system has a module containing a lithium battery, replace it only with the same module type made by
the same manufacturer. The battery contains lithium and can explode if not properly used, handled, or disposed of.
Do not:
Throw or immerse into water
Heat to more than 100°C (212°F)
Repair or disassemble
Dispose of the battery as required by local ordinances or regulations.
Caution:
When a CD-ROM drive is installed, note the following.
Use of controls or adjustments or performance of procedures other than those specified herein might result in
hazardous radiation exposure.
Removing the covers of the CD-ROM drive could result in exposure to hazardous laser radiation. There are no
serviceable parts inside the CD-ROM drive. Do not remove the CD-ROM drive covers.
D
ANGER
Some CD-ROM drives contain an embedded Class 3A or Class 3B laser
diode. Note the following.
Laser radiation when open. Do not stare into the beam, do not view
directly with optical instruments, and avoid direct exposure to the beam.
32 Kg
(70.5 (121.2
lbs)
Caution:
Use safe lifting practices when lifting your machine.
Caution:
Electrical current from power, telephone, and communication cables can be hazardous. To avoid personal injury or
equipment damage, disconnect the attached power cords, telecommunications systems, networks, and modems
before you open the covers, unless instructed otherwise in the installation and configuration procedures.
55Kg
lbs)
7