Journal of Biosystems Engineering

Korean Society for Agricultural Machinery (한국농업기계학회)
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Comparison of Test Standards for the Performance and Safety of Agricultural Tractors: A Review

  • Kabir, Md. Shaha Nur (Department of Biosystems Machinery Engineering, Chungnam National University) ;
  • Chung, Sun-Ok (Department of Biosystems Machinery Engineering, Chungnam National University) ;
  • Kim, Yong-Joo (Department of Biosystems Machinery Engineering, Chungnam National University) ;
  • Shin, Sung-Hyun (MogenKorea)
  • Received : 2014.08.01
  • Accepted : 2014.08.21
  • Published : 2014.09.01
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Abstract

Purpose: The objective of this paper was to compare test standards regarding the performance and safety of agricultural tractors to identify the differences in test conditions, measurement tolerances, and test procedures. Based on the comparison, some recommendations were proposed for possible revisions or improvements to current tractor test standards. Methods: The test standards and codes of major standards development organizations (SDOs), such as the Organization for Economic Cooperation and Development (OECD), the International Organization for Standardization (ISO), the American Society of Agricultural and Biological Engineers (ASABE), EC type approval, and the board of actions of the Nebraska Tractor Test Laboratories (NTTL), were selected and analyzed. Comparison of the test standards: The ISO provides references for fuel and lubricants for tractor tests, and the OECD provides additional measurements for calculating fuel consumption characteristics during the power take-off (PTO) tests. The ISO, EC type approval, and the ASABE provide PTO protective device and the safety requirements. During drawbar power tests, seven transmission ratios are selected for fully automatic transmissions, according to the OECD. In case of hydraulic lift tests, ISO 789-2 and OECD Code 2 advise the use of a static lift force, while SAE J283 advises the use of additional dynamic lift capacity tests for a better representation of in-field operations. The OECD, the ISO, and EC type approval determine the seat index point (SIP), whereas the ASABE determines the seat reference point (SRP) for roll-over protective structure (ROPS) tests. Diversified measurement tolerances were among the braking performance test standards. The European Union (EU) has developed daily limits for vibration exposures with adaptations from ISO 2631-1. Electromagnetic compatibility evaluations are emerging of high-efficiency tractors due to the long-term conformance to electromagnetic emissions and interferences. Comparisons of tractor test standards discussed in this paper are expected to provide useful information for tractor manufacturers and standards development personnel to improve the performance and safety test standards of tractors.

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References

  1. ASABE Standards. 2009a. SAE J283: Test procedure for measuring hydraulic lift capacity on agricultural tractors equipped with three-point hitch. St. Joseph, Mich.: ASABE.
  2. ASABE Standards. 2009b. SAE J2194: Roll-over protective structures (ROPS) for wheeled agricultural tractors. St. Joseph, Mich.: ASABE.
  3. ASABE Standards. 2011. ANSI/ASAE S365.9: Braking system test procedures and braking performance criteria for agricultural field equipment. St. Joseph, Mich.: ASABE.
  4. Bertram, H-H. and S. Liberatori. 1998. On the certification of agricultural machinery. 9th OECD Members Meeting, Bologna, Italy.
  5. Day, B., L. Field and A. Jarvis. 2009. The Wrest Park Story 1924-2006. Biosystems Engineering 103(1):36-47. https://doi.org/10.1016/j.biosystemseng.2008.11.024
  6. EEC. 1986. 86/297/EEC: Council Directive - On the approximation of the laws of the member states relating to power take-offs of wheel agricultural and forestry tractors and their protection. Official Journal of the European Union L 186/19-25.
  7. EU. 2002. 2002/44/EC: Directive of the European parliament and of the council, on the minimum health and safety requirements regarding the exposure of workers to the risks arising from physical agents (vibration). Official Journal of the European Communities. L 177/13.
  8. EU. 2009a. 2009/75/EC: Directive of the European parliament and of the council, on roll-over protection structures of wheeled agricultural or forestry tractors (static testing). Official Journal of the European Union L 261/40-77.
  9. EU. 2009b. 2009/64/EC: Directive of the European parliament and of the council, on the suppression of radio interference produced by agricultural or forestry tractors (electromagnetic compatibility). Official Journal of the European Union L 216/1.
  10. EU. 2010. 2010/62/EU: Commission Directive. Amending, for the purpose of adapting their technical provisions, Council Directives 80/720/EEC and 86/297/EEC and Directives 2003/37/EC, 2009/60/EC and 2009/144/EC of the European Parliament and of the Council relating to the type-approval of agricultural or forestry tractors. Official Journal of the European Union L 238/7-13.
  11. EU. 2012. 2012/24/EU: Commission Directive. Amending, for the purpose of adapting its technical provisions, Council Directive 86/297/EEC on the approximation of the laws of the Member States relating to the power take-offs of tractors and their protection. Official Journal of the European Union L 274/24-25.
  12. FACT. 2014. Agricultural Machinery Testing and Evaluation: Foundation of Agri. Tech. Commercialization and Transfer (FACT), OECD official tractor test station, Suwon, Republic of Korea.
  13. Isiktepe, M and S. K. Sumer. 2010. Comparing operational characteristics of 540 rpm and 750 rpm PTO in tractors through laboratory tests. Anadolu Journal of Agricultural Science 25(3):168-174.
  14. ISO. 1982. ISO 5697: Agricultural and forestry vehicles - Determination of braking performance. Geneva, Switzerland: ISO.
  15. ISO. 1990a. ISO 789-1: Agricultural tractors - Test procedures - Part 1: Power tests for power take-off. Geneva, Switzerland: ISO.
  16. ISO. 1990b. ISO 789-9: Agricultural tractors - Test procedures - Part 9: Power tests for drawbar. Geneva, Switzerland: ISO.
  17. ISO. 1993. ISO 789-2: Agricultural tractors - Test procedures - Part 2: Rear three-point linkage lifting capacity. Geneva, Switzerland: ISO.
  18. ISO. 1997. ISO 2631-1: Mechanical vibration and shock - Evaluation of human exposure to whole-body vibration - Part 1: General requirements. Geneva, Switzerland: ISO.
  19. ISO. 1998. ISO14982: Agricultural and forestry machinery - Electromagnetic compatibility - Test methods and acceptance criteria. Geneva, Switzerland: ISO.
  20. ISO. 2002. ISO 5008: Agricultural wheeled tractors and field machinery - Measurement of whole-body vibration of the operator. Geneva, Switzerland: ISO.
  21. ISO. 2004a. ISO 500-1: Agricultural tractors - Rear mounted PTO types 1, 2 and 3 - Part 1: General specifications, safety requirements, dimensions for master shield and clearance zone. Geneva, Switzerland: ISO.
  22. ISO. 2004b. ISO 2631-5: Mechanical vibration and shock - Evaluation of human exposure to whole-body vibration - Part 5: Methods for evaluation of vibration containing multiple shocks. Geneva, Switzerland: ISO.
  23. ISO. 2006. ISO 5700: Tractors for agriculture and forestry - Roll-over protective structures (ROPS) - Static test method and acceptance conditions. Geneva, Switzerland: ISO.
  24. Kabir, M. S., Ryu, M. J., Chung, S. O., Kim, Y. J., Choi, C. H., Hong, S. J and J. H. Sung. 2014. Research trends for performance, safety, and comfort evaluation of agricultural tractors: A review. Journal of Biosystems Engineering 39(1):21-33. https://doi.org/10.5307/JBE.2014.39.1.021
  25. Kim, H. J., Kim, K. W., Choi, S., Kim, J. S., Kim, Y. Y., Kim, J. O., Kim, H. K and S. H. Kwon. 2010. A study on improving the tractor ROPS and seatbelt use of Korean farmers. Journal of Biosystems Engineering 35(5):294-301. https://doi.org/10.5307/JBE.2010.35.5.294
  26. NTTL. 1998a. Board Action No. 06, Nebraska Tractor Test Board. Department of Biological System Engineering, University of Nebraska, Lincoln: NTTL (Nebraska Tractor Test Laboratory).
  27. NTTL. 1998b. Board Action No. 08, Nebraska Tractor Test Board. Department of Biological System Engineering, University of Nebraska, Lincoln: NTTL (Nebraska Tractor Test Laboratory).
  28. OECD. 2014. Standard codes for the official testing of agricultural and forestry tractors. Parish, France: OECD. Available at www.oecd.org.
  29. OECD. 2014a. OECD code 2: Standard code for the official testing of agricultural and forestry tractor performance. Parish, France: OECD. Available at www.oecd.org.
  30. OECD. 2014b. OECD code 4: Standard code for the official testing of protective structures on agricultural and forestry tractors (Static test). Parish, France: OECD. Available at www.oecd.org.
  31. PAMI. 1996. Standardized tractor performance testing - What it is - and isn't? Research update 727. Humboldt, Saskatchewan, Canada: Prairie Agricultural Machinery Institute (PAMI).
  32. Shin, C. S and K. U. Kim. 2011. Evaluation of vibration reduction performance of operator seat for agricultural tractors. Journal of Biosystems Engineering 36(1): 1-8. https://doi.org/10.5307/JBE.2011.36.1.1
  33. Sim, K., Cho, W and Y. Lee. 2011. Development on test specification of reliability of agricultural tractor. In: Proceedings of the Korean Society of Automotive Engineers, Autumn Conference, pp43-48, Guangzhou, Honam Branch.
  34. Sumer, S. K., Kocabiyik, H., Say, S. M and G. Cicek. 2010. Comparisons of 540 and 540E PTO operations in tractors through laboratory tests. Bulgarian Journal of Agricultural Science 16(4):526-533.
  35. Takahashi, H. 1998. Generality of the official testing system for agricultural machinery. 9th OECD Members Meeting, Bologna, Italy.
  36. UNIDO. 2006. Role of standards- A guide for small and medium-sized enterprises, working paper. Vienna, Austria: United Nations Industrial Development Organization (UNIDO).