Machine guarding refers to the use of safety features or physical barriers on or around machinery to protect workers from injury. Use this guide to help lead discussions with employees on the importance of machine guarding in the workplace. Empower them with strategies to minimize risks and promote a healthier work environment.

Follow these key machine guarding principles:

1. Prevent contact with moving parts

  • Never reach into a machine while it is operating.
  • Always ensure guards are in place before starting the machine, never remove them.
  • Report missing or damaged guards immediately.
  • Use tools or push sticks instead of hands to feed or remove materials.

2. Protect against flying objects or debris

  • Wear appropriate personal protective equipment (PPE), such as safety goggles or face shields.
  • Keep guards and shields properly positioned and secured.
  • Stand clear of the discharge area when the machine is in use.
  • Inspect the machine for loose parts or damage before operation.

3. Contain hazardous energy (e.g. electrical, hydraulic)

  • Follow lockout/tagout (LOTO) procedures before maintenance or cleaning.
  • Never bypass or disable safety interlocks or emergency stops.
  • Know the specific energy sources your machine uses.
  • Ensure all stored energy is released or controlled before servicing.

4. Prevent accidental machine activation

  • Do not leave machines running unattended.
  • Clearly label and secure start/stop controls.
  • Review all emergency shutdown procedures.

5. Ensure safe maintenance and operation

  • Perform regular inspections to ensure guards and safety devices are functioning properly.
  • Only trained and authorized personnel should operate or service machinery.
  • Follow the manufacturer’s guidelines and safety procedures during operation and maintenance.
  • Keep the work area clean and free of obstructions to avoid slips, trips, or accidental contact with machines.

Resource

For further guidance, refer to Occupational Safety and Health Administration’s (OSHA) Machine guarding hazard recognition.

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