Assessment of hand-arm vibration levels/exposure during motor-manual tree processing with the MPTMGS5803 chainsaw model

Document Type : Research Paper

Authors

1 Department of Forestry, Faculty of Natural Resources, University of Guilan, Sowmeh Sara, Iran.

2 Department of Forestry and Forest Economy, Faculty of Natural Resources, University of Tehran, Karaj, Iran.

3 Department of Occupational Health, School of Health, Guilan University of Medical Sciences, Iran.

4 Lab of Forest Utilization, Faculty of Forestry and Natural Environment, Aristotle University of Thessaloniki, POB 227, Thessaloniki, Greece.

10.22059/jfwp.2024.371383.1281

Abstract

Chainsaws, which are widely used in tree felling operations, create vibrations. Long-term and intense exposure to vibration may lead to the development of vascular, neurosensory, and musculoskeletal disorders in the upper limbs of chainsaw workers, known as Hand-arm vibration syndrome. This study investigates the vibration levels during tree bucking operations on poplar trees with the MPTMGS5803 chainsaw model, one of the most widely used chainsaws in forest operations in the western part of Guilan province. Simultaneous vibration measurements in three directions (x, y and z) were carried out using the SVANTEK 106A vibration meter, aiming to determine the total amount of chainsaw vibration and the daily exposure period. The results show that the highest amount of vibration was measured in the x (1.61±0.62), (2.01±0.90) direction and the lowest in the y (1.48±0.17), (0.73±0.09) direction both in the rear handle and front handle of the chainsaw. The rear handle of the chainsaw had a higher overall vibration acceleration (3.05±0.54 m/s2) compared to the front handle (1.94±0.53 m/s2). In terms of the daily exposure period, the level of vibration exposure inflicted on the chainsaw operator during a  three-hour and 70 second working period amounted to 1.19 m/s2 in the front handle and 1.87 m/s2 in the rear handle, with both values falling within the permissible vibration range.

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References

[1] Ålander, T., Antikainen, E., Raunemaa, T., Elonen, E., Rautiola, A., & Torkkell, K. (2005). Particle emissions from a small two-stroke engine: effects of fuel, lubricating oil, and exhaust aftertreatment on particle characteristics. Aerosol Science and Technology, 39(2), 151-161.
[2] Anonymous, 2007. Forest Management Plan of Tanyan district (Section 2). Published by General Directorate of Natural Resources and Watershed Management of Guilan Province, Rasht, 79 p. (In Persian)
[3] De Jesus, A.T., Fiedler, N.C., do Carmo, F.C.D.A., & Juvanhol, R.S. (2020). Exposure of operators to chainsaw vibration in forest harvesting. Floresta, 50(3), 1653-1659.
[4] Dos Santos Depoi, J., Brandelero, C., Werner, V., Schlosser, J.F., Russini, A., & de Vargas, F. (2022). Hand-arm vibration in different operating conditions with a chainsaw. Floresta, 52(1), 074-082.
[5] Färkkilä, M., Pyykkö, I., Jäntti, V., Aatola, S., Starck, J., & Korhonen, O. (1988). Forestry workers exposed to vibration: a neurological study. Occupational and Environmental Medicine, 45(3), 188-192.
[6] Feyzi, M., Jafari, A., & Ahmadi H. (2022). Transmitted vibrations to the wrist and arm of a chainsaw operator: The effect of wood cutting process. Journal of Health and Safety at Work, 12(2), 309-323 (In Persian)
[7] Feyzi, M., Jafari, A., & Ahmadi, H. (2023). The effect of wood species on chainsaw vibrations during bucking operations. International Journal of Forest Engineering 34(177), 1-9.
[8] Golmohammadi, R. (2017). OEL assessment guideline for noise and vibration, Daneshjou press, Hamedan.
[9] Groover M.P. (2007). Work systems and methods, measurement, and management of work. Upper Saddle River (NJ), Pearson Prentice Hall: 778 p.
[10] International Labor Organization (ILO). (1991). Occupational Safety and Health in Forestry; Report II; Forestry and Wood Industries Committee, Second Session: Geneva, Switzerland.
[11] International Organization for Standardization UNI EN ISO 11681-1. (2011). Machinery for Forestry—Portable Chain-Saw Safety Requirements and Testing—Part 1: Chain-Saws for Forest Service; International Organization for Standardization: Geneva, Switzerland.
[12] Khajavi, S., Jourgholami, M., Majnounain, B., & Moradpour, P. (2019). Evaluation of the effect of chainsaw vibration on user's hand and arm during log bucking operations. Iranian Journal of Wood and Paper Industries, 9(4), 471-483. (In Persian)
[13] Khajavi, S., Jourgholami, M., Majnounian, B., & Moradpour, P. (2020). Ergonomic evaluation of the effect of chainsaw on Vibration White Finger disease (VWF) in the operator. Forest and Wood Products, 72(4), 289-299 (In Persian)
[14] Landekić, M., Bačić, M., Pandur, Z., & Šušnjar, M. (2020). Vibration levels of used chainsaws. Forests, 11(2), 249.
[15] Majnounian, B., Jabari, M., Jourgholami, M., YarAhmadi, R., & Deljouei, A. (2017). Assessment of hand-arm vibration caused by chainsaw in beech tree felling and bucking operations. Iranian Journal of Forest, 9(3), 301-313. (In Persian)
[16] Majnounian, B., Abdi, E., & Foshat, M. (2015). Ergonomy in Forestry and Wood Industry, Jihad University, Tehran.
[17] Miyashita, K., Miyamoto, K., Kuroda, M., Takeda, S., & Iwata, H. (1994). Hand-arm vibration exposure and the development of vibration syndrome. Nagoya Journal of Medical Science, 57, 43-48.
[18] Naghdi, R., Nikooy, M., Mohammadi Limaie, S., & Shormage, Y. (2010). Evaluation of felling productivity in Shafarood forest (Guilan province). Iranian Journal of Forest and Poplar Research, 18(3), 425-417 (In Persian).
[19] Poje, A., Potočnik, I., & Mihelič, M. (2018). Comparison of electric and petrol chainsaws in terms of efficiency and safety when used in young spruce stands in small-scale private forests. Small-scale Forestry, 17(3), 411-422.
[20] Rahimi, F., Nikooy, M., & Ghajar, I. (2018). Ranking the dangers of working with chainsaw during felling operation. Forest Research and Development, 4(3), 401-413. (In Persian)
[21] Rottensteiner, C., P. Tsioras., & K. Stampfer. (2012). Wood Density Impact on Hand-Arm Vibration. Croatian Journal of Forest Engineering, 33(2), 303-312.
[22] Rottensteiner, C., & Stampfer, K. (2013). Evaluation of operator vibration exposure to chainsaws equipped with a Kesper safety bar. Scandinavian Journal of Forest Research, 28(2), 193-200.
[23] Stempski, W., Jabłoński, K., & Wegner, J. (2010). Relations between top-plate filling angle values of cutting chains and chainsaw vibration levels. Acta Scientiarum Polonorum, 9(2), 31-39.
[24] The group of writers. (2022). Occupational exposure limits, Environment and Work Health Center, Ministry of Health, Treatment and Medical Education, Iran.
[25] Yovi, E.Y., & Yamada, Y. (2019) Addressing Occupational Ergonomics Issues in Indonesian Forestry: Laborers, Operators, or Equivalent Workers. Croatian Journal of Forest Engineering, 40(2), 351-363.
Forest and Wood Products
Volume 77, Issue 1
June 2024
Pages 13-22

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