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Cleaning the Computer Case
Follow all safety precautions in the "General Cleaning Safety Precautions" section in this
chapter before cleaning the computer.
To clean the computer case, follow the procedures described below:
To remove light stains or dirt, use plain water with a clean, lint-free cloth or swab.
For stronger stains, use a mild dishwashing liquid diluted with water. Rinse well by
wiping it with a cloth or swab dampened with clear water.
For stubborn stains, use isopropyl (rubbing) alcohol. No rinsing is needed as the alcohol
will evaporate quickly and not leave a residue.
After cleaning, always wipe the unit with a clean, lint-free cloth.
Occasionally clean the air vents on the computer. Lint and other foreign matter can block
the vents and limit the airflow.
Cleaning the Keyboard
Follow all safety precautions in the "General Cleaning Safety Precautions" section in this
chapter before cleaning the keyboard.
To clean the tops of the keys or the keyboard body, follow the procedures described in the
"Cleaning the Computer Case" section in this chapter.
When cleaning debris from under the keys, review all rules in section in the "General Cleaning
Safety Precautions" in this chapter before following these procedures:
Visible debris underneath or between the keys may be removed by vacuuming or shaking.
Canned, pressurized air may be used to clean debris from under the keys. Caution should
be used as too much air pressure can dislodge lubricants applied under the wide keys.
If you remove a key, use a specially designed key puller to prevent damage to the keys.
This tool is available through many electronic supply outlets.
Cleaning under a key may be done with a swab moistened with isopropyl alcohol and
squeezed out. Be careful not to wipe away lubricants necessary for proper key functions.
Use tweezers to remove any fibers or dirt in confined areas. Allow the parts to air dry
before reassembly.
CAUTION: Use safety glasses equipped with side shields before attempting to clean debris
from under the keys.
CAUTION: Never remove a wide leveled key (like the space bar) from the keyboard. If these
keys are improperly removed or installed, the keyboard may not function properly.
Removal and Replacement Preliminaries 3-5
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