PowerPoint Presentation
Other Power Tools
Presented by Orlando Moreno+1 770.354.3072
[email protected] of California at Berkeley
Introduction to Power Tools 00104-15
ObjectivesWhen trainees have completed this session, they should
be able to do the following:
Identify and explain how to use various types of power
saws.Identify and explain how to use a portable band saw.Identify
and explain how to use miter and cutoff saws.Identify and explain
how to use various grinders and grinder attachments.Identify and
explain how to use various types of grinders.Identify and explain
how to use various grinder accessories and attachments.Identify and
explain how to use miscellaneous power tools.Identify and explain
how to use pneumatic and powder-actuated fastening tools.Identify
and explain how to use pavement breakers.Identify and explain the
uses of hydraulic jacks. Introduction to Power Tools 00104-15
ObjectivesRelated Performance Tasks:
Safely and properly demonstrate the use of the following
tool(s): Portable band sawMiter or cutoff saw Portable or bench
grinderPneumatic nail gunPavement breakerIntroduction to Power
Tools 00104-15
Band SawsUsed almost exclusively on metal.Little or no added
pressure is required. Check for blade wear if the cut is not
progressing as expected.Low speeds are best for metal cutting. Many
band saws have only one speed.Push the stop against the workpiece
before starting the saw.The blade can easily be twisted and
stressed while cutting, which results in breakage.
Introduction to Power Tools 00104-15
Introduce the portable band saw and explain that it is primarily
used for cutting metal. Describe the blade and point out that band
saws operate at relatively low speeds.Stress that the band saw stop
must be against the workpiece before starting the saw. Explain that
the weight of the saw is all that is needed for cutting to occur;
added pressure wears the blade.
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Miter SawsCompound miter saws allow for multiple angles in a
single cut. Sliding models allow for cutting wider stock. Many
abrasive saws are for cutoff service only; the cutting angle cannot
be set. Introduction to Power Tools 00104-15
Introduce miter and cutoff saws.Explain the difference between
standard miter saws and compound models. Describe the compound
sliding miter saw.
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Grinders Angle grinders are very common metalworking tools,
especially for welders, pipefitters, and ironworkers. Knotted wire
wheels and cups are common in addition to grinding wheels.
Introduction to Power Tools 00104-15
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Describe the uses of angle grinders and their construction.
Point out that detail grinders have the tool operating in-line with
the motor shaft. Define and describe points. Discuss the use of
bench grinders. Emphasize the importance of using wheels with the
proper ratings. 6
Grinders Die grinders and detail grinders are used for finer
work, such as removing casting waste from componentsIntroduction to
Power Tools 00104-15
Grinders Grinder Safety
Face shields should be worn with all grinders.The maximum rpm of
the grinding wheel must be greater than or equal to that of the
grinder.Grinders create a shower of sparks. Ensure the work area is
clear of flammable materials.Keep the tool rest within 1/8-inch
(about 3 mm) of the wheel.Perform a ring test on new grinding
wheels.Introduction to Power Tools 00104-15
Grinders
Introduction to Power Tools 00104-15
Explain how to hold and use an angle grinder. Explain that
pressure on the tool must be controlled and light. Discuss the
adjustments made to a bench grinder. Emphasize the importance of
keeping the workpiece cool.Discuss the PPE required for grinding.
Talk about grinding disc and wheel selection. Describe and
demonstrate how to do a ring test on a grinding wheel.
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Nailers Pneumatic nailers can set many nails very quickly and
they eliminate the need to grab and hold the nail. The nose of the
nailer must be depressed against a firm surface before it will
fire. Introduction to Power Tools 00104-15
Describe pneumatic nailers and how they work. Point out the
safety features. Describe powder-actuated tools. Explain that
certification is required to operate them. 10
Nailers Powder-actuated tools are excellent when there is no air
or electric power. They can fire fasteners directly into concrete,
which is their primary use. Alternative methods (drilling and
anchors) are much more labor-intensive.
Introduction to Power Tools 00104-15
Pavement BreakersA variety of attachments are available for
pavement breakers, depending upon the task. A typical pneumatic
model weighs between 50 and 90 pounds (20 to 40 kg). Consider what
is under the area being broken up, such as wiring or piping.
Introduction to Power Tools 00104-15
Explain how pavement breakers operate. Describe their operation
and point that they are heavy tools. Describe the possible
attachments. 12
Jacks Jacks can be used for various tasks, such as raising
equipment for the installation of permanent footings and vibration
isolators. A jack should never be depended upon to hold a load;
lift, position supporting materials, and then remove the load from
the jack. Introduction to Power Tools 00104-15
Discuss the exceptional force developed by hydraulic tools.
Describe the construction of a hydraulic jack. Explain that the
pump can be internal or a separate component. Describe jack
characteristics such as capacity and stroke. 13
14/48QUESTIONS ?Orlando Moreno+1
[email protected]
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