Angle Grinders - Safety Talk

Angle Grinders
Page 1 of 10
© PA Services Group - SMARTsafe 2013 Document Number: ST036
Revision 2013 1.0
Angle Grinders
SAFETY AWARENESS KEPT SIMPLE
This pack contains:
• 7 - Page Talk Text
• 5 - OHP Presentation Slide Pack
Using the talks (Extract “How to Present Safety Talks”):
Plan which topic you want to discuss with your team.
Read through the script before you hold the meeting to
familiarise yourself with the material.
Start the talk with a comment that makes the topic relevant to
the team. For example, if you have seen a number of people
using ladders incorrectly, use this as your opening comment.
Follow the script but don’t read straight from the page. The
script is only a prompt and it will sound better if you use your
own words.
Ask the questions as they appear in the script. It is important
you do this because they are a lead in to the next section of
your talk.
Give the team enough time to answer the questions. Safety
talks can be boring for the team if you are the only one talking.
Hand out the information sheets as they appear in the script.
Don’t hand out all the information sheets at the start of the talk
otherwise there is a temptation for the team to read ahead and
not listen to the points you are making.
Collect the information sheets at the end of the talk so they
can be used again.
Safety Talk Mini - Delivery Pack
To obtain your full Safety Talk Delivery Pack go to: www.smartsafe.com.au
The full Safety Talk pack contains MS Office
Editable documents :
• 7 - Page Talk Text
• 5 - OHP Presentation Slide Pack
• 10 - A5 talk Handout Sheets
• Assessment and Assessment Answers Sheet
• Employee Attendance Register
• A “How to Present Safety Talks Guide”
SMARTsafe Safety Talks - ST036

Angle Grinders
Page 4 of 10
Revision 2013 1.0
SELECTING THE CORRECT WHEEL
Grinding wheels are made with three different types of bonding material. These are:
Organic bonded wheels - which use resins, rubber or shellac to bond the abrasive material together.
Inorganic bonded wheels - which use sodium silicate, magnesium, oxy-chloride or metal as a bonding
agent.
Vitrified bonded wheels - which use clay, glass or porcelain as a bonding agent.
“What type of wheel must you use with portable angle
grinders?”
You should only use organic bonded wheels with portable angle grinders. They tend to be less brittle
than the other two types of grinding wheels and more capable of withstanding the wheel flexing that
occurs with angle grinding.
Organic bonded wheels are also made with reinforcing fibre or filament to provide greater strength.
You should only use:
soft grade wheels when angle grinding hard materials; and
hard grade wheels when angle grinding soft materials.
“What can happen if you use a soft grade wheel on soft
material?”
If a soft grade wheel is used on soft material the wheel face can become clogged or loaded with particles
of the material being cut or ground.
If a hard grade wheel is used on hard material this can cause the wheel face to become glazed.
If a wheel becomes glazed or clogged it reduces the abrasiveness of the wheel causing you to press the
wheel harder against the work piece. This can lead to excessive flexing of the wheel causing it to
shatter.
For this reason you should not use masonry grinding wheels on metal or metal grinding wheels for
grinding masonry.
“What else should you consider when selecting a grinding
wheel?”
Hand out sheet 1 – Selecting grinding wheels
This document is a partial preview. Full document download can be found on Flevy:
http://flevy.com/browse/document/angle-grinders-safety-talk-474

Angle Grinders
Page 7 of 10
Revision 2013 1.0
A wheel that is too loose on the spindle will run off-centre, causing stress and vibration that can lead to
the wheel shattering.
After fitting the wheel and before turning on the power, turn the wheel by hand for a few revolutions to
check the fitting and to make sure the wheel is clear of the grinder guard.
CHECKING THE GRINDER
“What items should you check on an angle grinder before you
operate it?”
Hand out sheet 3 – Checking the grinder
Before you start any grinding work you should check the condition of the grinder. You should check the:
outer casing is free of cracks or damage;
operating switch operates and automatically returns to the OFF position;
grip handle is fitted and secure;
guard is securely in position;
exposure angle of the wheel is no more than 150 degrees;
flexible cord is free of any damage to the insulation;
electrical inspection tag is up-to-date;
power plug does not have cracks or bent pins; and
casing screws are intact and firmly in position.
Electrically operated angle grinders used with grinding wheels of 130 mm diameter or greater must be
fitted with a switch or speed control device that automatically returns to the OFF position and is not
capable of being locked in the ON position. This is known as a “deadman switch”.
Pneumatic grinders must be checked to make sure the:
air hose does not have any splits or cracking;
air hose is securely clamped to the grinder body;
air hose coupling is securely clamped;
operating trigger automatically returns to the OFF position; and
grinder stops completely when the operating trigger is in the OFF position.

Angle Grinders
Page 10 of 10
Revision 2013 1.0
LICENCE AND LIMITATION OF LIABILITY
Under copyright laws, the documentation may not be copied, photocopied, reproduced, translated or
reduced to any electronic medium or machine-readable form, in whole or in part or sold or distributed
without the prior written consent of PA Services Group Pty Ltd. SMARTsafe is a registered trademark of
the PA Services Group.
Copyright 2013
PA Services Group Pty Ltd
GPO Box 924, Brisbane QLD 4001
www.smartsafe.com.au
Email: info@smartsafe.com.au
Under no circumstances shall PA Services Group Pty Ltd or associated Companies be liable for any
loss, damage or injury (including without limitation any loss of profit, indirect, consequential or
incremental loss, damage or injury) arising from the supply of this TALK or use of the MATERIAL and
any accompanying written materials or any failure by PA Services Group Pty Ltd or trademarks products
branded SMARTsafe perform any obligation or observe any terms of this agreement.
By using this material the Purchaser agrees to the above terms.
The laws of Australia govern this agreement.
The artwork “IMAGES” in the Safety Talks are incorporated for viewing purposes. Reproducing the
“IMAGES” in other documents or transferring them in electronic form is a breach of third party copyright.
The “IMAGES” used in this material are drawn from photo stock and other sources.
PA Services Group Pty Ltd has the right to make periodic changes, additions and deletions to the
material and products described within the publications without notice.
DISCLAIMER
The information presented in the Safety Talks has been compiled from sources believed reliable.
However it cannot be assumed that all acceptable measures are contained within the talk nor that other
additional measures may not be required under particular, specific or exceptional circumstances and that
your company, manufactures or statutory procedures and rules may apply and take precedence over this
material.

Angle Grinders – ST036 © PA Services Group - SMARTsafe 2013
Tap here 45
degrees from
centre line
Tap here Tap here
Tap here
25mm in from
Outside edge
Sheet 2 – Testing the Wheel

Angle Grinders – ST036 © PA Services Group - SMARTsafe 2013
• Remove flammables.
• Secure the work piece in a vice or clamp.
• Never use your foot as the clamp.
• Keep work piece at waist height.
• Adopt a comfortable stance.
• Keep both hands on the grinder.
• Run the grinder “up to speed”.
• Apply minimal pressure on the wheel.
• Avoid using excessive force.
• Fully position the guard between you and the work
piece.
• Position the grinding wheel between 15 to 30 degrees.
• Take frequent breaks to rest arms and hands.
• Never put the grinder down until the wheel has fully
stopped.
• Don’t drop grinders onto the ground.
Sheet 5 – Operating the Grinder

1
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Angle Grinders - Safety Talk

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