9
Department of Education
National Capital Region
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S C H O O L S D I VI SI O N O F F I C E -M A R I KI N A C I TY
TLE-Information and Communication Technology
Computer System Servicing
Second Quarter-Module 1
Use and Maintain Hand Tools
Writer:
Donnalynn W. Mercado/
Cover
Illustrator:
Christopher E. Mercado
DISCIPLINE • GOOD TASTE • EXCELLENCE
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This module has the following parts with its corresponding icons:
This part contains the introduction to the
module including the lesson content and
lesson module objectives
It contains assessment to determine your
prior knowledge of the lesson.
Contains introductory activity that helps
you recall the previous lesson.
This is the part that contains part of the
lesson that makes the learners ready to dig
deeper on the following parts.
This part discusses the topic of the lesson
including some activities to undertake.
These are additional information that has
something to do with the topic.
It contains application or practice of the
knowledge and skills learned from the
lesson.
This part summarizes what the learners
grasp from the lesson.
This part contains a post-yest to measure
how much the learners learned from the
lesson
Enrichment activities and reinforcement of
the lesson are written in this part.
This part contains the lists of all references
and resources used in the making of this
module.
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This module was designed and written with you in mind. It is here to
help you develop knowledge, skills, and attitudes in the field of Computer
System Servicing. The knowledge and skills you will gain after finishing the
course will help you become competitive. It will equip you with skills that
can be used for building our future.
The module focuses on:
Lesson 1 Using and Maintaining Hand Tools
After going through this module, you are expected to:
1. to identify and select appropriate hand tools according to the task
requirements.
A. Directions: Fill in the blanks. Write your answers on a separate sheet of
paper. Attach your answer sheet on your portfolio.
1. The purpose of an antistatic wrist strap is to ______________________
the electrical charge between you and the equipment.
2. Turn the screwdriver __________________ to tighten the screw.
3. Turn the screwdriver ________________________to loosen the screw.
4. Use _______________ head screwdriver with crosshead screws.
5. An electrical component, an excessive buildup of dust will act like an
_________________ and trap the heat.
6. When compressed air is used to clean inside the computer, the air
should be blown around the components with a minimum distance of
___________________ inches from the nozzle.
7. Pencils should not be used inside the computer to change the setting
of switches or to pry off jumpers because the tip contains
______________________ which can act as a conductor and may damage
the computer components.
8. To clean the screens of CRT monitors, dampen a soft clean, lint free
cloth with _________________ water and wipe the screen from top to
bottom.
9. Clean the contacts on components with _______________ alcohol.
10. Use a ______________________________ to loosen and tighten bolts that
have a hexagonal (six-sided head).
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After reading and carefully answering the pre-assessment, you might
have ideas of what you will be dealing with in this module.
Lesson 1
Use and Maintain Hand Tools
For a computer technician to work better, one must be knowledgeable
in usinig the proper tools for a specific task. Negligence may lead to damage
of property and injury. Likewise, maintaining the tools and equipment
makes them last longer.
Label the parts of the system unit. Write the answers in your
notebook.
Different jobs makes use of different tools. A carpenter has a set of
hammers, saw and other carpentry tools, an electrician has a multitester,
splicer, wire stripper and other electrical tool.
Based on the pictures on the left: (Write
your answers in yout notebook)
• Do you think these tools are used in
the computer repair?
• Do these tools have their own
functions depending on what they are
used for?
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•
If you were a computer technician, what would be your basis for using
tools?
PROPER USE OF TOOLS:
A tool is a handheld device that aids in accomplishing a task. Tools
range from a traditional metal cutting part of a machine to an element of a
computer program that activates and controls a particular function.
Knowing how to use tools properly will helps prevent accidents and
damage to equipment and people. This lesson familiarizes you with the
correct use of each tool and make sure that the correct tool is used for the
current task. Skilled use of tools and software makes the job less difficult
and ensures that tasks are performed properly and safely.
A toolkit should contain all the tools necessary to complete hardware
repairs. As you gain experience, you learn which tools to have available for
different types of jobs.
How do you select the best tool for the job?
1. First, know and understand in detail the scope of work to be
accomplished, second, plan for the scope considering the sequence of
tasks.
2. Selecting the best tool for each task requires training in the proper use of
the tools, field experience in their safe use, and following the
manufacturer’s guidance and instructions for that specific tool.
3. When obtaining the tool all the associated tooling and consumable parts,
as recommended by the manufacturer, must be included. In addition,
related consumable parts must also be selected and used according to
their manufacturer’s instructions.
SAFE USE OF TOOLS:
Once selected, use the tool for the purpose for which it was designed.
Not all tools come with detailed instructions, but there are those that do
spell out the safety - Do’s and Don’ts for your safety. If there are set-up or
use options, operator judgment must always be based on what is the safest
way to use the tool.
SAFE USE OF TOOLS ENVIRONMENTAL SAFETY AND HEALTH PROGRAM
REQUIRES THE FOLLOWING:
• All tools be kept in good condition with regular maintenance.
• The right tool must be used for the job.
• Each tool be examined before use.
• Damaged or defective tools NOT to be used.
• Tools be operated according to manufacturer’s instructions.
• The right protective equipment for the tool and activity be used.
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HARDWARE TOOLS:
For every job there is the right tool. Make sure that you are familiar
with the correct use of each tool and that the correct tool is used for the
current task. Skilled use of tools and software makes the job less difficult
and ensures that tasks are performed properly and safely.
A toolkit should contain all the tools necessary to complete hardware
repairs. As you gain experience, you learn which tools to have available for
different types of jobs.
Hardware tools are grouped into four categories:
• ESD tools
• Hand tools
• Cleaning tools
• Diagnostic tools
Tool is a handheld device which are more or less durable while Materials are
tose that are consumable and can be replaced when needed. Equipment refers
to echanicalm with specific purpose and use.
1. Electro-Static Discharge (ESD) Tools
There are two ESD tools: the antistatic wrist strap and the
antistatic mat. The antistatic wrist strap protects and equalize electrical
charge between you and computer equipment when grounded to a
computer chassis. The antistatic mat protects computer equipment by
preventing static electricity
from accumulating on the
hardware or on the technician.
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2. Hand Tools
Most tools used in the computer assembly process are small hand
tools. They are available individually or as part of a computer repair
toolkit. Toolkits range widely in size, quality, and price. Some common
hand tools and their uses are:
Name of
Tool
Flat-head
Screw
Driver
Phillips
Screw
Driver
Torx Screw
Driver
Hex Driver
Image
Use/s
Used to tighten or
loosen slotted
screws.
Used to tighten or loosen
crossheaded screws.
Used to tighten or
loosen screws that have a
starlike depression on the
top, a feature that is
mainly found on laptops.
Used to tighten or loosen
nuts in the same way that a
screwdriver tightens or
loosens screws (sometimes
called a nut
driver).
Use to hold small parts
Needle
Nose Pliers
Use to strip and cut wires
Wire
Cutter
Tweezer
Part
Retriever
Used to
Manipulate small parts.
Used to retrieve parts from
locations that are too small
for your hand to fit.
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Used to light up areas that
you cannot see well.
Flashlight
It is used to remove the
insulation from wire so that
it can be twisted to other
wires or crimped to
connectors to make a cable
Used to terminate wire into
Termination blocks. Some
cable connectors must be
connected to cables using a
punch down tool.
Wire
Stripper
Punch
Down Tool
3. Cleaning Tools
Having the appropriate cleaning tools is essential when maintaining
and repairing computers. Using the appropriate cleaning tools helps
ensure that computer components are not damaged during cleaning.
Cleaning tools include the following:
Name of Tool
Soft Cloth/Lintfree Cloth
Compressed Air
Cable Ties
Part Organizer
Image
Use/s
Used to clean different
computer components
without scratching or
leaving debris.
Used to blow away
dust and debris from
different computer
parts without touching
the components.
Used to bundle cables
neatly inside and
outside of a computer.
Used to hold screws,
jumpers, fasteners,
and other small parts
and prevents them
from getting mixed
together.
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4. Diagnostic Tools
Name of
Tool
Digital
Multimeter
Toner Probe
LAN Tester/
Network
Cable Tester
Image
Use/s
A device that can take many
types of measurements. It tests
the integrity of circuits and the
quality of electricity in
computer
components. A digital
multimeter displays the
information on an LCD or LED.
A two-part tool. The toner part
is connected to a cable at one
end using specific adapters,
such as an RJ-45, coaxial, or
metal clips. The toner
generates a tone that travels
the length of the cable. The
probe part traces the cable.
When the probe is in near
proximity to
the cable to which the toner is
attached, the tone can be
heard
through a speaker in the probe
A LAN tester is mainly used for
testing ethernet cables for
faults or missing pair
connections. A decent LAN
tester can also test the
ethernet cable for shorted pairs
and can also tell you if the
cable is straight or a cross
over. They may have the ability
to test co-axial cable as well.
They can tell you if the co-axial
cable is terminated at end or
not.
DEMONSTRATE PROPER TOOL USE AND MAINTENANCE
1. ESD tools
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• Antistatic Wrist Strap
Step 1. Wrap the strap around your
wrist and secure it using the snap or
Velcro. The metal on the back of the
wrist strap must remain in contact
with your skin at all times.
Step 2. Snap the connector on the
end of the wire to the wrist strap, and
connect the other end either to the
equipment or to the same grounding
point that the antistatic mat is connected to. The metal skeleton of the
case is a good place to connect the wire. When connecting the wire to
equipment that you are working on, choose an unpainted metal surface.
A painted surface does not conduct electricity as well as unpainted
metal.
• Antistatic Mat
Step 1. Lay the mat on the
workspace next to or under the
computer case.
Step 2. Clip the mat to the case
to provide a grounded surface
on which you can place parts as
you remove them from the system.
2. Hand tools
Screws: Match each screw with the proper
screwdriver. Place the tip of the screwdriver on
the head of the screw. Turn the screwdriver
clockwise to tighten the screw and
counterclockwise to loosen the screw.
Screws can become stripped if you over-tighten them with a screwdriver.
A stripped screw, may get stuck in the screw hole, or it may not tighten
firmly. Discard stripped screws.
• Flat-Head Screwdriver
Use a flat-head screwdriver when you are working with a slotted screw.
Do not use a flat-head screwdriver to remove a Phillips-head screw.
Never use a screwdriver as a pry bar. If you cannot remove a component,
check to see if there is a clip or latch that is securing the component in
place.
•
Phillips-Head Screwdriver
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Use a Phillips-head screwdriver with crosshead screws. Do not use this
type of screwdriver to puncture anything. This will damage the head of
the screwdriver.
CAUTION: If excessive force is needed to remove or add a component,
something is probably wrong. Take a second look to make sure that you have
not missed a screw or a locking clip that is holding the component in place.
Refer to the device manual or diagram for additional information.
• Hex Driver
Use a hex driver, to loosen and tighten bolts that have a hexagonal (sixsided) head. Hex bolts should not be over-tightened because the threads
of the bolts can be stripped. Do not use a hex driver that is too large for
the bolt that you are using.
CAUTION: Some tools are magnetized. When working around electronic
devices, be sure that the tools you are using have not been magnetized.
Magnetic fields can be harmful to data stored on magnetic media. Test your
tool by touching the tool with a screw. If the screw is attracted to the tool, do
not use the tool.
Component Retrieving Tools
•
Needle-nose pliers and tweezers can be used to place and retrieve parts
that may be hard to reach with your fingers. There are also tools called
part retrievers that are specifically designed for this task. Do not scratch
or hit any components when using these tools.
CAUTION: Pencils should not be used inside the computer to change the
setting of switches or to pry off jumpers. The pencil lead can act as a
conductor and may damage the computer components.
3. Cleaning Materials
• Keeping computers clean inside and out is a
vital part of a maintenance program.
• Dirt can cause problems with the physical
operation of fans, buttons, and other
mechanical components. On electrical
components, an excessive buildup of dust
acts like an insulator and traps the heat.
This insulation impairs the ability of heat sinks and
• cooling fans to keep components cool, causing chips and circuits to
overheat and fail.
NOTE:
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When using compressed air to clean inside the computer, blow the air
around the components with a minimum distance of 4 in. (10 cm) from
the nozzle. Clean the power supply and the fan from the back of the
case.
CAUTION: Before cleaning any device, turn it off and unplug the device from
the power source.
PROPER TOOL MAINTENANCE
If you take care of your tools, they will return the favor.
Proper care and routine maintenance of your hand tools
and power tools makes any home improvement or repair
project easier, safer and more successful.
Proper tool care also saves you money because the better
they’re cared for, the longer they’ll last. Make it a habit to clean tools after
each use before you return them to storage. Wipe them down with a rag or
old towel and be sure they are free of dust, grease and debris before you put
them into their proper
places. This is also an opportunity to look for any damage or defects. Check
your tools' handles for splinters, breaks and cracks. Also, make sure that
metal parts show no signs of corrosion or rust. Repair or replace any tools
that show signs of damage
Hand tools such as screwdrivers, wrenches, hammers, pliers, levels, and
wire cutters are examples of common household tools that are often left out
in places such as basements, garages and tool sheds. Tools are tough, but
they are not indestructible and exposure to the elements can take its toll.
To ensure that tools and equipment remain in good condition and last for a
long time store them properly. Properly stored tools and e6uipment will be
easy to find when needed and are less likely to be lost.
Good practices include:
• Parts should be properly stored and labeled.
Tools should be properly placed on the board and
labeled.
• Consider drawing the shapes of the tools on the
board so that they always (et put bac* in the
same position. Consider making an individual or
individuals) responsible for the good
maintenance of tools and parts.
Benefits:
• Tools and parts are kept in good condition and are easy to find Costs are
reduced.
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• Productivity is increased because time is not wasted looking for tool parts
and equipment.
• Workshop staff develop a sense of responsibility and pride in their work
Read and understand the following activities then answer carefully in a
separate sheet of paper and attach our output in your portfolio.
ACTIVITY 1.
Find the following term in the puzzle based on the given description
1. Used to manipulate small parts.
2. Used to light up areas that you cannot see well.
3. Used to attach connectors to wires
4. A handheld device that aids in accomplishing a task
5. It should contain all the tools necessary to complete hardware repairs
ACTIVITY 2.
Classify the following tools below according to the four categories of
computer hardware servicing tools. Write A if the tool is an ESD tool, B if it
is a hand tool, C if it is a Cleaning Tool and D if it belongs to the Diagnostic
tools.
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1.
2.
3.
4.
5.
Hex Driver
Lint-Free Cloth
Loopback Adapter
Anti-Static Mat
Torx Screwdriver
6. Flashlight
7. Multimeter
8. Cable ties
9. Anti-static wrist strap
10. Parts Organizer
ACTIVITY 3.
Based on the discussion above, identify the following statement. Draw ☺ if
the statement is true and  if the statement is false.
1. All tools be kept in good condition with regular maintenance.
2. Clean a desktop keyboard with compressed air and then use a
handheld vacuum cleaner with a brush attachment to remove the
loose dust.
3. The right tool must be used for the job.
4. Before cleaning any device, turn it off and unplug the device from the
power source.
5. Each tool be examined before use.
6. Damaged or defective tools NOT to be used.
7. Tools be operated according to manufacturer’s instructions.
8. The right protective equipment for the tool and activity be used.
9. Pencils should not be used inside the computer to change the setting
of switches or to pry off jumpers.
10. Using tools properly helps prevent accidents and damage to
equipment and people.
Conduct a maintenance activity on the given hand tools. Some items are
already given to you. Complete the Table below. Copy and answer the
table in you’re a separate sheet of paper and attach yur output in your
portfolio.
Tools
Maintenance Activity
1.Flat-Head Screwdriver
Clean and magnetize
2.Philips-Head Screwdriver
3.Torx Screwdriver
4.Hex Driver
5.Tweezers
6.Needle-Nose Plier
7.Wire Cutter
8.Part Retriever
9. Flashlight
10.Multimeter
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Use MS Word in answering. Save it as PDF and upload in the designated
folder in the Google drive shared by your teacher.
1. If you are a technician, what are the things you should consider in doing
a task?
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________
2. Your teacher has given you a task, but the tools you will use are
outdated. What will you do?
________________________________________________________________________
________________________________________________________________________
________________________________________________________________________.
A. Identify the following statement. Answer in a separate sheet of paper.
1. This tool is used to manipulate small parts.
2. What tool is used to retrieve parts from locations that are too small for
your hand to fit.
3. It is used to remove the insulation from wire so that it can be twisted
to other wires or crimped to connectors to make a cable.
4. It is Used to attach connectors to wires.
5. What tool is used to terminate wire into termination blocks? Some
cable connectors must be connected to cables using a punch down
tool.
6. A tool used to clean different computer components without
scratching or leaving debris is called _____.
7. What tool is used to hold screws, jumpers, fasteners, and other small
parts and prevents them from getting mixed together?
8. It is used to bundle cables neatly inside and outside of a computer.
9. A device that can take many types of measurements. It tests the
integrity of circuits and the quality of electricity in computer
components.
10. Used to blow away dust and debris from different computer parts
without touching the components.
11. Protects computer equipment when grounded to a computer chassis.
12. The tool used to tighten or loosen slotted screws.
13. A handheld device that aids in accomplishing a task.
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14. It should contain all the tools necessary to complete hardware
repairs.
15. An electronic device that can store/restore, encode/decode and
manipulate data in many ways.
Read and understand the statement. You will be graded through the
following rubrics.
Answer in MS Word then save your file as PDF. Upload it in the Google Drive
folder designated for this activity.
Question: What is the importance of knowing the appropriate hand tools for
Computer System Servicing?
RUBRIC FOR ESSAY
Content
The content was well-thought, guide
4
questions were thoroughly answered
Organizatio
The paper was well-written with ideas
3
n
easily conveyed to readers
Developmen
Points are thoroughly developed
3
Total
10
t
BOOK:
IT Essentials 5th Edition, July 16, 2013, Circo Press.
INTERNET/ONLINE REFERENCE:
https://ikstudiesseries.blogspot.com/2017/11/tools-and-equipmentslatesttechnology.html
Photo Credits:
http://www.zeph.com/ http://getgui.com/ https://workingperson.com/
https://ae01.alicdn.com https://images-na.ssl-images-amazon.com/
https://images.homedepot-static.com https://i.ebayimg.com/
https://www.dhresource.com http://www.satworld.ie/ PowerPoint Template
http://www.fppt.com
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Development Team
Prepared by: Donnalynn W. Mercado (PHS)
Editors:
Marites G. Cerojales (Subject Coordinator, PHS)
Reviewer: Joseph T. Santos (EPS -TLE/EPP)
Cover Illustrator: Christopher E. Mercado (JDPNHS)
Layout Artist; Donnalynn W. Mercado
Management Team
Sheryll T. Gayola
Assistant Schools Division Superintendent
OIC, Office of the Schools Division Superintendent
Elisa O. Cerveza
Chief, CID
OIC, Office of the Assistant Schools Division Superintendent
Joseph T. Santos
Education Program Supervisor-TLE/EPP
Ivy Coney A. Gamatero
Education Program Supervisor– LRMDS
For inquiries or feedback, please write or call:
Schools Division Office- Marikina City
191 Shoe Ave., Sta. Elena, Marikina City, 1800, Philippines
Telefax: (02) 682-2472 / 682-3989
Email Address: sdo.marikina@deped.gov.ph
DISCIPLINE • GOOD TASTE • EXCELLENCE