Grounding Requirements; Computer Cleaning; Case; Air Intake Filter (Hp 9040 Only) - HP 9030 Service Manual

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General Information
Grounding Requirements
To protect operating personnel, the National Electrical Manufacturers' Association (NEMA) recom-
mends that the computer chassis be grounded. The computer is equipped with a three-conductor
power cable which, when connected to an appropriate power receptacle, grounds the computer
chassis.
Computer Cleaning
Exterior case parts and the air intake filter (HP 9040 only) should be checked and cleaned as
required per the following instructions.
Case
The computer has been painted with a durable, long lasting, water-based paint which is non-·toxic
and environmentally safe. It will preserve the appearance of the computer for many years. Clean
the computer according to the following instructions to sustain the quality finish indefinitely. Should
the finish be damaged, consult your local HP Sales and Support Office (Appendix G) for available
touch-up paints.
CAUTION
CHEMICAL SPRAY -ON CLEANERS USED FOR APPLIANCES AND
OTHER HOUSEHOLD APPLICATIONS MAY DAMAGE THE FIN-
ISH. THESE OR OTHER CHEMICAL CLEANERS SHOULD NOT BE
USED. DO NOT USE DETERGENTS THAT CONTAIN AMMONIA,
BENZENES, CHLORIDES, OR ABRASIVES. DISPLAY GLASS
SHOULD NOT BE CLEANED WITH ANY CLEANER. ONLY CLEAN
WATER SHOULD BE USED FOR CLEANING DISPLAY GLASS.
Before cleaning the computer, turn off the power switch, unplug the power cord, and remove any
interconnecting cables. Dampen a clean, soft, lint-free cloth with a solution of clean water and mild
soap. Wipe the soiled areas of the computer, ensuring that no cleaning solution gets inside the
computer. For cleaning more heavily soiled areas, a solution of 80% clean water and 20% isop-
ropyl alcohol may be used. Using a clean, soft, lint-free cloth dampened with clean water, wipe over
all areas that were cleaned with cleaning solution. Then dry the computer with a clean, soft, dry
cloth. A non-abrasive eraser may be used to remove pen and pencil marks.
Air Intake Filter (HP 9040 Only)
Cooling air is drawn through the air intake filter at the bottom of the computer and is exhausted at
the top. Ensure that the filter is free of obstructions at all times. Vacuum or wash filter as necessary.