Angle Grinders are used in many automotive workshops. When not used correctly, angle grinders pose a risk to the health and safety of workers. Choosing a grinder that has an automatic cut-off or “dead-man” switch is the safer option. This means that power will cut off as soon as finger pressure is released. Automatic cut-off switches may not be available on all models and may not be practicable for certain tasks. Where your workshop doesn’t have any grinders with automatic cut-off switches, this is something that should be raised with your MTA Field Officer or with your direct supervisor.
Grinders should only be used by someone who is competent in their use or if they are not competent, under the direct supervision of a competent operator.
Prior to using an angle grinder, pause and assess if it is the right tool for the job. If possible, substitute the angle grinder for a safer option that will achieve the same result.
When using an angle grinder, the following practices will assist with doing the task safely:
- Wear correct PPE
The use of angle grinders requires double eye protection – safety glasses and a face shield. Your body should be protected from sparks generated and suitable hearing protection should be worn. - Assess your work areaPreparation of your work area is key. Inspect the work area to ensure you are not working near any flammable materials, this may include flammable chemicals or even uncovered bins containing cardboard or oily rags and make sure other workers maintain a safe distance from you. Ideally, hot work should be performed in a designated area, however, where this isn’t possible, consider using flame-proof screens to control the sparks and flying particles. Depending on the job being performed, where possible, the work piece should be secured in a vice or similar.
- Inspect the equipmentA pre-use inspection to determine if the grinder is fit for purpose can prevent unnecessary incidents occurring.
- Check to see that guards are fitted and secure
- Ensure the grinder has a handle fitted
- Ensure that the correct type of disc is used for the work and that the disc is secure and in good condition. Using the wrong disc, may result in the disc shattering or “grabbing” the work piece causing kickback
- Check the overall condition of the grinder
Once you have started the grinder, complete a post-start up inspection prior to grinding or cutting. Allow the grinder to warm up and run it at the required operating speed. This will give you the opportunity to identify issues prior to using it on the work piece.
Remember, if at any point during the inspection or use of equipment defects are identified that can not be rectified, tag the equipment out and report it to your supervisor
- Operate the grinderMaking sure the grinder is always kept in control is one of the most crucial safety considerations. Hold the grinder with both hands and adopt a balanced and even body posture. When using a grinder fitted with a cutting disc, keep the depth of cut to no more than double the disc thickness and avoid plunging the disc too far through the work piece.
- Post use inspection
Your responsibilities don’t end the moment you finish using the grinder. As a worker, you have a responsibility to inspect the equipment post-use to ensure it remains fit for purpose and safe to remain in service. Housekeeping is also an important consideration. Ensure that equipment is returned to designated storage areas and your work area is tidied.
October is National Safe Work Month – the perfect opportunity to commit to building a safe and healthy workplace. The theme of this year’s campaign is: For everyone’s safety, work safely. Angle grinder safety is just one of many areas that could be reviewed in your workplace.
