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ALL SHOOK UPVIBRATIONS IN AGRICULTURE
Learning Objectives
• Understand what are vibrations and the risks they cause
• Recognize symptoms and effects – Hand arm and whole body vibrations
• Preventing and reducing injury
What is Vibration?
• Rapid movement to and from or oscillating movement.
• Hand-arm vibration (HAV) and or whole-body vibration (WBV).
• Agriculture vibrations come from a variety of sources– Tractor seats– Steering wheels– Power hand tools– Others?
Risk Factors
• Risk of permanent damage from vibration depends on a number of factors including:– how high the level of vibration is– how long the equipment is used for – short exposures and
occasional spells can be equally as damaging depending on other factors
– how tightly the equipment is gripped– how awkward the equipment is to use– how cold and wet it is when use the equipment is used.
Hand-Arm Vibrations (HAV)
• Use of tools and equipment that transmit vibrations into the hands and arms– chainsaws, brush cutters, and
grinders
• Long-term, regular exposure can lead to potentially permanent and debilitating health effects – hand-arm vibration syndrome,
vibration white finger and carpal tunnel syndrome.
Credits: sxc.hu
Whole Body Vibrations (WBV)
• Vibration transmitted through the seat or the feet by workplace machines and vehicles – Tractors, skid loaders, combines
• Travelling over rough ground (fields), along a track, and over bumps or potholes
• Regular, long-term exposure linked to lower back pain, early degeneration of spine, herniated discs
Whole Body Vibrations (WBV)
Factors that can increase or decrease WBV exposure include:
– road construction/ maintenance – vehicle type/design – age/condition of vehicle – maintenance of vehicle suspension systems – seat design, suspension and maintenance – cab layout, design and orientation – task design and work organization – vehicle speed, driver skills and awareness – lighting and visibility
Exposure to Vibrations
Minimal Risk: Must Manage Exposure
High Risk: Most likely to cause back pain
Extreme Risk: Must Restrict as much as possible
Combining
Hedging and Ditching
Self-Propelled foragers
Duties requiring power take-off not otherwise listed
Bailing
Drilling
Foraging
Spraying
Plowing
Harrowing
Cultivation (up to 5 ½ hrs)
Mowing (Up to 8 hrs)
Tedding (Up to 5 hours)
ATV (Up to 5 ½ hrs)
Cultivation (Over 5 ½ hrs)
Mowing ( Over 8 hrs)
Tedding (Over 5 hrs)
ATV ( Over 5 ½ hrs)
Prevention Methods
• Ensure vehicles and machinery are properly maintained• Make sure the drivers seat is in good repair and gives
good support• Make sure suspension seats are suitable for the
vibration characteristics of the machine• Make sure seats are properly adjusted to the size and
weight of operator• Choose the right vehicle for conditions, ground surface,
and task
Conclusion
• There are various sources of vibration in the agricultural industry
• Two of the most common conditions association with vibrations are Hand-Arm Vibrations and Whole-Body Vibrations
• Although you may not be able to eliminate them the risk of vibrations can be reduced through various prevention methods
References
• http://www.hsa.ie/eng/Topics/Physical_Agents/Vibration/
• http://www.safeworkaustralia.gov.au/sites/SWA/about/Publications/Documents/712/Whole_Body_Vibration_Fact_Sheet.pdf
• http://deohs.washington.edu/business-labor-resources/topics-z/vibration
• http://www.healthyworkinglives.com/advice/workplace-hazards/vibration.aspx#risks
• http://www.hse.gov.uk/pubns/ais20.pdf• http://www.hse.gov.uk/agriculture/topics/vibration.htm
For More Information
OSU Ag Safety & Health
The Ohio State University
Ag Engineering Building
590 Woody Hayes Drive
Columbus, Ohio 43210-1057
Email: [email protected]
Phone: 614-292-6008
Website: agsafety.osu.edu
This project was supported by the USDA’s National Institute of Food
and Agriculture (NIFA) Rural Health and Safety Education Grant
Program- grant number 2012-46100-20144.