EIM module electrical installation and maintenance3.pptx

TLE 9
Electrical Installation
And
Maintenance
Lesson 1.3: Inspect Tools and Equipment for
Damage prior to its Use

OBJECTIVES
• inspect tools and equipment for
damage prior to its use;
• know hazards in using power and
hand tools; and
• report damaged tools.

Tools are such a common part of
our lives that it is difficult to
remember that they may pose
hazards. Tragically, a serious
incident can occur before steps are
taken to identify and avoid or
eliminate tool-related hazards.

Checking and inspecting of hand and power
tools before commencing work is crucial to
determine defective or damaged equipment.
Failing to check for damages can be onerous for
both the business and its employees. Damaged
equipment can also cause severe injuries such
as cuts, punctures, blindness, electrical shock,
or skin infection due to scrapes and abrasions.
Equipment should help employees easily
perform their tasks and not put them in danger.

Any person who use hand and power tools are
exposed to the hazards of falling, flying,
abrasive, and splashing objects, or to harmful
dusts, fumes, mists, vapors, or gases must be
provided with the appropriate personal
protective equipment (PPE’s). All electrical
connections for these tools must be suitable for
the type of tool and the working conditions (wet,
dusty, flammable vapors). When a temporary
power source is used for construction a ground-
fault circuit interrupter should be used.

Five basic safety rules can help prevent hazards
associated with the use of hand and power tools
1. Keep all tools in good condition with regular
maintenance.
2. Use the right tool for the job.
3. Examine each tool for damage before use and
do not use damaged tools.
4. Operate tools according to the manufacturers’
instructions.
5. Provide and use properly the right personal
protective equipment.

When and How should you Inspect Powered
Hand Tools?
• Inspect tools for any damage prior to
each use.
• Check the handle and body casing of the
tool for cracks or other damage.
• If the tool has auxiliary or double
handles, check to see that
they installed

When and How should you Inspect Powered
Hand Tools?
• Inspect cords for defects: check the power cord
for cracking, fraying, and other signs of
wear or faults in the cord insulation.
• Check for damaged switches and ones with
faulty trigger locks.
• Inspect the plug for cracks and for missing,
loose or faulty prongs.

What should you do if you find a
tool defective?
• If a tool is defective, remove it from
service, and tag it clearly
"Out of service for
repair".
• Replace damaged equipment
immediately – do not
use defective tools
"temporarily".

What should you do before using power hand tools?
 Do not wear loose clothing or jewelry while
using revolving power tools. Tie back long
hair or wear appropriate hair protection to
prevent hair from getting caught in moving
parts of equipment.
 Do not use a tool unless you have been
trained to use it safely and know its
limitations and hazards.

 Avoid accidental starting by ensuring the tool
is turned off before you plug it in. Also do
not walk around with a plugged-in tool with
your finger touching the switch.
 Do not bypass the ON/OFF switch and
operate the tools by connecting and
disconnecting the power cord.
 Do not disconnect the power supply of the
tool by pulling or jerking the cord from the
outlet.

 Do not leave a running tool unattended. Do
not leave it until it has been turned off, has
stopped running completely, and has been
unplugged.
 Do not use electric tools in wet conditions or
damp locations unless tool is connected to a
ground fault circuit interrupter (GFCI).
 Do not expose electric power tools to rain or
wet conditions; wet tools increase the
likelihood of electric shock.

 Avoid body contact with grounded surfaces
like refrigerators, pipes and radiators when
using electric power tools; this will reduce
the likelihood of shock if the operator's body
is grounded.
 Do not plug several power cords into one
outlet by using single-to-multiple outlet
adapters or converters ("cube taps").
 Do not use light duty power cords.

 Stop using an electric power tool if you feel a
tingle in your fingers. This is a warning that
the tool is faulty and needs repair.
 Do not connect or splice extension cords
together to make a longer connection: the
resulting extension cord may not be able to
provide sufficient current or power safely.
 Do not carry electrical tools by the power cord.

 Do not tie power cords in knots. Knots can
cause short circuits and shocks. Loop the
cords or use a twist lock plug.
 Never break off the third prong on a plug:
replace broken 3-prong plugs and make sure
the third prong is properly grounded.

 Never use extension cords as permanent
wiring: use extension cords only as a
temporary power supply to
an area that does not have a
power outlet.
 Do not walk on or allow vehicles or other
moving equipment to pass over unprotected
power cords. Cords should be put in
conduits or protected by placing planks on
each side of them.

 Do not brush away sawdust, shavings or
turnings while the tool is running. Never use
compressed air for cleaning surfaces or
removing sawdust, metal turnings, etc.
 Do not operate tools in an area containing
explosive vapors or gases.

 Do not clean tools with flammable or toxic
solvents.
 Do not surprise or touch anyone who is
operating a tool. Startling a tool operator
could end up causing an accident or injury.
 Have a qualified electrician install a polarized
outlet if the polarized, two-prong plug of a
double-insulated tool does not fit in a two-
hole receptacle. Double insulated tools use
plugs having one prong that is visibly wider
than the other.

 Use only the kind of battery that the tool
manufacturer specifies for the battery-
powered tool that you are using.
 Recharge a battery-powered tool only with a
charger that is specifically intended for the
battery in that tool.

 Remove the battery from the tool or ensure
that the tool is switched off or locked off
before changing accessories, adjusting, or
storing the tool.
 Store a battery pack safely so that no metal
parts, nails, screws, wrenches and so on can
come in contact with the battery terminals;
this could result in shorting the battery and
possibly cause sparks, fires or burns.

Methods on Identifying Non-Functional Power
Tools and Equipment
1. Visual Inspection- refers to the visual
observation of an expert on the
appearance of the tools and equipment.
2. Functionality- based on vibration or extra
noise from the operation means
problems on parts and accessories
started to develop.
3. Performance- when there is something wrong
with the performance of either electric
tools or equipment, they need an

Methods on Identifying Non-Functional Power
Tools and Equipment
4. Power supply (for electric operated) - failure
to meet the required power supply,
malfunction will occur
in the part of power tools and equipment.
5. Persons involved- refers to the technical
person who has knowledge and
skills about the technology.

Hand tools are tools that are power
manually. Hand tools include anything
from axes to wrenches. The greatest
hazards posed by hand tools result from
misuse and improper maintenance.

What Are the Hazards of Hand Tools?
 If a chisel is used as a screwdriver, the tip of the
chisel may break and fly off, hitting the user
 If a wooden handle on a tool, such as a hammer
or an axe, is loose, splintered, or cracked, the
head of the tool may fly off and strike the
user or other persons.

What Are the Hazards of Hand Tools?
 If the jaws of a wrench are sprung, the wrench
might slip.
 If impact tools such as chisels, wedges, or drift
pins have mushroomed heads, the heads
might shatter on impact, sending sharp
fragments flying toward the user or other
employees.

What Are the Dangers of Power Tools?
Appropriate personal protective equipment such
as safety goggles and gloves must be worn to
protect against hazards that may be
encountered while using hand tools.

Workplace floors shall be kept as clean and
dry as possible to prevent accidental slips
with or around dangerous hand tools.

Power tools must be fitted with guards and
safety switches; they are extremely
hazardous when used improperly. The types
of power tools are determined by their power
source: electric, pneumatic, liquid fuel,
hydraulic, and powder-actuated.

To prevent hazards associated with the use
of power tools, workers should observe the
following general precautions:
 Never carry a tool by the cord or hose.
 Never yank the cord or the hose to
disconnect it from the receptacle.
 Keep cords and hoses away from heat,
oil, and sharp edges.

 Disconnect tools when not using them,
before servicing and cleaning them, and
when changing accessories such as blades,
bits, and cutters.
 Keep all people not involved with the work at
a safe distance from the work area.
 Secure work with clamps or a vise, freeing
both hands to operate the tool.

 Avoid accidental starting. Do not hold fingers
on the switch button while carrying a
plugged-in tool.
 Maintain tools with care; keep them sharp
and clean for best performance.
 Follow instructions in the user's manual for
lubricating and changing accessories.

 Be sure to keep good footing and maintain
good balance when operating power tools.
 Wear proper apparel for the task. Loose
clothing, ties, or jewelry can become caught
in moving parts.
 Remove all damaged portable electric tools
from use and tag them: "Do Not Use."

Things to remember in Equipment Selection
and Monitoring
1. The physical characteristic of the equipment
shall be measured by the changes in
the condition of equipment over
a period.
2. Vibration and temperature are the best
indicators of rotating equipment
condition.
3. A visual and hands-on inspection of the
equipment on a periodic basis is
be conducted to look

Things to remember in Equipment Selection
and Monitoring
4. A periodic or continuous monitoring combined
with visual inspections and time-based
replacement is scheduled
and planned per equipment.
5. Commence monitoring/inspection in a priority
order.
6. Prioritize equipment with known problems
which has history of problems.

Roles and Responsibilities
The Management is responsible for:
• Providing a safe and healthy workplace
including the necessary
equipment, power tools, and the
system.
• Providing training, instruction, information,
supervision and protect workers
from damage equipment,
rotating tools and the system.
• Establishing regular safety inspection of the
workplace.

The Supervisors are responsible for:
• Knowing and complying with health and
safety requirements
• Ensuring workers under their direction
and knowing and complying
with health and safety
requirements.
• Ensuring workers following instruction,
using conditioned
equipment and
receiving adequate supervision.

The Workers are responsible for:
• Following safe work practice and
procedures using safeguards and
personal protective equipment.
• Reporting hazard (such as damaged power
tools and damaged equipment)
to the supervisor.
• Cooperate with the management,
supervisor and the committee on
regular action for inspection.

“Prevention is better than cure”. Always inspect
tools and equipment before using it to avoid
untoward accidents. Always use Personal
Protective Equipment (PPE’s) when working.
Remember the five basic safety rules in inspecting
tools and equipment to prevent hazards
associated with the use of hand and power tools.
REMEMBER

EIM module electrical installation and maintenance3.pptx

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