Correction of the inter-repair period of aggregates /nodes / of the machines

  • 1 Institute of Soil Science, Agrotechnology and Plant Protection "N. Pushkarov", Sofia, Bulgaria
  • 2 Technical University of Moldova, 168, Ștefan cel Mare Blvd., Chișinău, Republic of Moldova


The stages of the life cycle of complex technical products, such as tractors and self-propelled agricultural machinery, are examined. The need to correct /extend/ the period between repairs of individual aggregates and nodes is justified.
For this purpose, a corrective expression was derived for determining the economically expedient extension of the between-repair period of the machine elements, which takes into account the economic effect of extending the repair period, the relative share of the costs of purchasing replacement units and the set value of the confidence probability of the resource of the aggregates.



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