Man/Machine Interface – Equipment Blind Spots

What hazards could and/or have occurred when working around machines, heavy equipment and mobile plants?

It is extremely important for both heavy equipment operators and the nearby workforce to understand the blind spots equipment creates for the operator. The operator must make sure nothing is in a blind spot before moving the equipment. The workforce must to not move into an equipment blind spot where the operator won’t be able to see you.

Ask the question: Can the operator see me?

  • No, if I am standing or approach in a blind spot.
  • Maybe, if the operator is watching for people in their work area.
  • Yes, if I make eye contact or ask permission before approaching.

Have you seen this post in the shared learnings area (click here)?

Let’s see how difficult this is from the operator’s view point.  Blind spots vary for all types of equipment.

When working near heavy equipment, remember these important safety points (there are only a few listed here):

  1. Only qualified and authorized personnel are permitted to operate heavy equipment.
  2. Stay alert at all times.
  3. Use a spotter
  4. Establish communication before starting work – hand signals, whistles, radios, air horn, audible alarm, or other means of effective jobsite communication. The spotter must maintain line of site or communication with the equipment operator.
  5. Anyone entering the danger zone must first establish communication, preferably eye contact, with the operator.
  6. Prevent unauthorized workers or bystanders from entering a danger zone. Install barricades and signs around the danger zone.
  7. The use of cell phones and other communication devices is prohibited except for job required or emergency situations.
  8. Wear high visibility clothing and other appropriate personal protective equipment.
  9. Watch for shifting or unstable loads and working surfaces.
  10. NO RIDERS. Only equipment that is designed to carry multiple persons shall have more than one occupant.

What else can we do to control our work where blind spots present a risk?

Challenge: Sit in the driver seat of a vehicle.  Have a helper stand behind the vehicle and walk away from the vehicle until you can see their feet in your rear view mirror. Measure this distance. That is the blind spot behind your vehicle!  

Visit back here as people comment.

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