Educational guidance on how workplace induction and safety instruction generally work — connected to workplace safety, occupations, industries, employment documents and company types. Informational only — not certified training, not an official qualification and not a substitute for mandatory workplace instruction; employers remain responsible for required training, competence and authorisation.
What this instruction covers
Abrasive wheel safety instruction explains, in general terms, why abrasive wheels are hazardous, how they are used safely, and why mounting them is restricted to trained, authorised people.
This page is an educational outline only. It does not replace the manufacturer’s instructions, the employer’s risk assessment, machine-specific instruction or the formal training that mounting an abrasive wheel requires.
The hazards
- Wheel bursting or breaking up at speed and ejecting fragments.
- Contact with the rotating wheel causing severe injury.
- Sparks, hot particles and the risk of fire or burns.
- Dust, including harmful dust depending on the material.
- Entanglement and being drawn towards a wheel.
Who needs this instruction
- Workers who use fixed or portable grinders fitted with abrasive wheels.
- Those who mount, change or dress abrasive wheels (formal training required).
- Supervisors who oversee abrasive wheel work and authorisation.
- New starters and transfers before any abrasive wheel work.
The safe method
- Use a wheel rated for at least the machine’s speed and the correct task.
- Keep the work rest correctly adjusted and close to the wheel where fitted.
- Apply work steadily; do not jam, force or grind on the side of a straight wheel.
- Let the wheel reach full speed and stand to one side when starting.
- Do not exceed the maximum speed marked on the wheel.
Guarding & controls
- Wheel guards must be fitted, correctly positioned and in good condition.
- Adjust the tongue guard and work rest to the small gaps specified.
- Do not run a grinder with the guard removed or damaged.
- Use the on/off controls and let the wheel stop fully before adjusting.
Required PPE
- Eye and face protection against sparks and fragments.
- Hearing protection where the work is noisy.
- Dust protection (RPE) where harmful dust is produced.
- Close-fitting clothing and no gloves that could be drawn in (per the risk assessment).
Pre-use checks
- Inspect the wheel for cracks, chips and damage before fitting and use.
- Confirm the wheel speed rating suits the machine and the guard is correct.
- Check the work rest and tongue guard gaps are correctly set.
- Do not use a damaged wheel, an incorrect wheel or an unguarded machine.
Isolation before mounting & maintenance
- Isolate the machine before mounting, changing or dressing a wheel.
- Confirm the wheel has stopped fully before any adjustment.
- Mounting is a controlled task done only after isolation and by trained staff.
- Restore guards and checks before returning the machine to use.
What the worker is and is not authorised to do
- Use a grinder only if instructed and authorised for that machine.
- Do not mount, change or dress an abrasive wheel unless formally trained and appointed.
- Do not remove or defeat the wheel guard.
- Do not exceed marked speeds or use a wheel for the wrong task.
What to do if something is wrong
- Stop and isolate if the wheel runs out of balance or sounds wrong.
- Report cracked or damaged wheels, guards and machines.
- Take a faulty grinder out of use and label it.
- Report any burst, near miss or injury immediately.
Training & competence
Reading this page does not make a worker competent or authorised. Using a grinder needs machine-specific instruction and assessment, and mounting an abrasive wheel is a recognised high-risk task.
Mounting and changing abrasive wheels legally requires formal training in selection, mounting and the dangers involved, and the employer must appoint and authorise the person. This page does not provide that training, qualification or appointment.
Documentation
- A record of the abrasive wheel instruction and any formal training.
- An appointment or authorisation record for those who mount wheels.
- Wheel inspection and machine maintenance records kept by the employer.
- These can be shared as PDFs; a record documents instruction, not competence.
Common mistakes to avoid
- Letting an untrained, unappointed person mount or change a wheel.
- Running a grinder with the guard removed or wrongly set.
- Using a cracked wheel or exceeding the marked maximum speed.
- Grinding on the side of a straight wheel or forcing the work.
Who is responsible
The employer is responsible for safe machines and wheels, guarding, the formal training abrasive wheels require, appointing and authorising those who mount them, assessing competence and keeping records. This guide is an educational outline to support that work.
It does not deliver training, certify, appoint or authorise anyone, satisfy any legal requirement or transfer the employer’s responsibility for abrasive wheel safety and supervision.
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