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clean.mnt
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1991-10-26
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CLEANING PROCEDURE
For the purpose of cleaning, we can divide the computer system
into the following parts:
1- The Keyboard
2- The Monitor (Screen)
4- The Computer shell (Case)
4- Disk Drives
5- The Power Supply
6- Electronic Boards
7- The Printer
8- The Hard disk
The cleaning process involves removing dirt, dust, and any other
foreign particles from all computer parts to keep the computer
clean and looking new.
Before you start cleaning make sure that the power is OFF. Unplug
the computer, monitor and keyboard. Generally the cleaning process
is simple if you have the right cleaners.
1- KEYBOARD
In cleaning the keyboard you may perform some or all of the
following.
* Keyboard caps can be brushed lightly with all purpose cleaning
spray on a cloth.
* Use presaturated swabs to clean the area between the caps.
* Using the duster blow away all the remaining dirt and dust.
* You may open the screws at the bottom of the keyboard then
clean the inside of the keyboard using the duster.
* A vacuum cleaner with a small attachment may also be used to
clean the keyboard. Neither sprays nor liquids should be used
on the keyboard because a drop of liquid might fall underneath
and damage the electronic board.
2- MONITOR
The only maintenance required for the monitor is to keep the
screen clean for good vision and the air vents free from dust and
dirt.
* A dirty screen can be rubbed clean with a lint free cloth
moistened with ordinary glass cleaner. You may also use the
special monitor screen cleaners such as PLAST-N-GLASS or
SCREEN PREP mentioned earlier. If the monitor is equipped with
anti-glare screen, the use of solvents or cleaners is generally
prohibited.
* The monitor shell can be cleaned with cloth moistened by all
purpose cleaner. Instead of the all purpose cleaner you can
moisten the cloth with TF SOLVENT or any general purpose
computer cleaner. You may also use CHEMPAD or any other special
lint free wipers.
3- COMPUTER CASE
To clean the computer case use the same cleaners used for
monitor shell.
4- DISK DRIVES
Disk drives (floppy drives) are extremely sensitive and are
usually the first part of computer to need repair. Never use
Dusters or SWABS to clean the disk drive heads. You should always
use the special disk drive head cleaning kit. The kit contains a
cloth disk on which you drop a small amount of cleaning fluid
which is included in the kit. Insert the disk in the drive while
the computer is on. Type in a command and press enter or return.
You will hear the disk spinning. Let it spin for about 10-20
seconds then open the disk drive door to stop the spinning. This
cleans the heads. Repeat for the other drive. The kit is usually
good for about 15 times of use.
Note that the process of disk drive cleaning is the only one that
requires the computer to be ON. Therefore you should clean the
disk drives after you are finished with your other cleaning, or
if you wish you may first clean them before turning the power off
and disconnecting the cords. You should keep in mind that SWAPS
ARE NOT RECOMMENDED FOR CLEANING DISK DRIVE HEADS.
5- ELECTRONIC BOARDS
Electronic boards consist of the main board (mother board),
controller cards such as disk drive and/or hard disk controller
and other cards such as monitor card, memory expansion card,
modem card and multi-function card. The names are not important
for the purpose of the cleaning. So don't worry about them. All
you need to do is to clean them using a cleaner which is safe and
leaves no residue. TF SOLVENT is the best for circuit boards.
You may use a duster in combination with TF SOLVENT. If it is
too dirty inside, it is a good idea to use a small vacuum cleaner
to remove most of the dust and dirt before using other cleaners.
Before you can clean the electronic boards, you will need to
open the computer case by removing the screws that is holding it.
6- POWER SUPPLY
Usually the power supply is mounted in a separate metal box. You
can not get to the inside of it. All you need is to make sure
that the air vents are free from any dust or dirt. Use a vacuum
and/or a duster to clean the air vents of the power supply.
7- PRINTER
In most computer systems, the printer has the largest number of
mechanical parts. It is the device that most likely to fail. You
should make sure that the ventilation openings are clear of dust
and debris.
Periodically you should disassemble the top part of the printer
and look for dust and debris inside. Where found, dust should be
wiped off with a lint free cloth, vacuumed or simply blown away
with a duster.
For the moving parts, the best cleaner I found for printers is
TRIFLEX which is made by Chemtronics. It is good for cleaning
acrylics, nylon, polystyrene, and rubber. Use dusters to remove
dirt around the paper feeds and printing mechanism, then use
TRIFLEX to clean other moving parts. It also works as a dry
lubricant for all the moving parts of printers specially the
gears. The printer case is cleaned the same way as the computer
case or the monitor shell.
8-HARD DISKS
Hard disks are sealed and hard to get into. Therefore they
require no cleaning. However, you may clean the metal surface of
the hard disk by rubbing it gently with presaturated pads or lint
free wipers.
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