What should you know before working with a surface grinder?
Surface grinders can be dangerous if not used properly.
- Read the owner's manual carefully.
- Make sure you understand instructions and are properly trained before operating a surface grinder.
Refer to Metalworking Machines - General for basic safety tips.
Also refer to Abrasive Wheels for further information.
What are some basic safety principles to know when using a surface grinder?
- Wear appropriate safety glasses. In addition, use the eye shield on the grinder, when provided.
- Ensure that the grinder has a start/stop button within easy reach of the operator.
- Check the grinding wheel before mounting it. Make sure it is properly maintained and in good working order.
- Follow the manufacturer's instructions for mounting grinding wheels.
- Keep face of the wheel evenly dressed.
- Ensure that the wheel guard covers at least one half of the grinding wheel.
- File off any burrs on the surface of work that is placed on the magnetic chuck.
- Clean the magnetic chuck with a cloth and then wipe with the palm of your hand.
- Place a piece of paper slightly larger than workpiece in the centre of chuck.
- Position work on the paper and turn on the power to the magnetic chuck.
- Check that the magnetic chuck has been turned on by trying to remove work from the chuck.
- Check that the wheel clears the work before starting the grinder.
- Run a new grinding wheel for about one minute before engaging the wheel into the work.
- Stand to one side of the wheel before starting the grinder.
- Turn off coolant before stopping the wheel to avoid creating an out-of-balance condition.
- Keep the working surface clear of scraps, tools and materials.
- Keep the floor around the grinder clean and free of oil and grease.
What are some things you should avoid doing?
- Do not run a grinding wheel faster than the speed recommended on the wheel.
- Do not clean the magnetic chuck or mount or remove work until the wheel has completely stopped.
- Do not grind material for which wheel is not designed.
- Do not grind without proper ventilation.
- Do not start the machine until the wheel guard is in place.
- Do not stand directly in front of a grinding wheel when starting a grinder.
- Do not apply work too quickly to a cold wheel or disk.
- Do not jam work into the wheel.
- Do not reach above or around a moving wheel.
Document confirmed current on March 30, 2011
Document last updated on August 21, 2001
Copyright ©1997-2013 Canadian Centre for Occupational Health & Safety