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ALL SHOOK UP VIBRATIONS IN AGRICULTURE
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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
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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?
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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.
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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
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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
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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
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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)
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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
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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
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References http://www.hsa.ie/eng/Topics/Physical_Agents/Vibratio n/ http://www.safeworkaustralia.gov.au/sites/SWA/about/ Publications/Documents/712/Whole_Body_Vibration_F act_Sheet.pdf http://deohs.washington.edu/business-labor- resources/topics-z/vibration http://www.healthyworkinglives.com/advice/workplace- hazards/vibration.aspx#riskshttp://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
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For More Information OSU Ag Safety & Health The Ohio State University Ag Engineering Building 590 Woody Hayes Drive Columbus, Ohio 43210-1057 Email: jepsen.4@osu.edu Phone: 614-292-6008 Website: agsafety.osu.edu
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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.
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