Analysis of Failure States of Transportation Vehicles Using the Ishikawa Diagram: A Case Study

This study focuses on analyzing transportation vehicles using Ishikawa diagrams to understand random events (fault conditions) in the operation of monitored transportation vehicles. Creation of a universal system for monitoring and evaluating the operating parameters of trucks used for wood transportation and wood material with self-service maintenance. Currently, the priority of all companies is to minimize costs and maximize profits, which can be achieved through a properly set maintenance system and proper care for transportation vehicles. The article presents only partial results of the entire research. Data for the study of the operational reliability of IVECO, SCANIA, and TATRA vehicles were obtained from real operating conditions of two companies engaged in the timber cutting and transportation process. The mentioned vehicle brands were chosen due to their use in the Slovak forest economy and management. Using Ishikawa diagrams for individual design groups of monitored transportation vehicles, operators were provided with a proposal on how to influence operational reliability. The study’s results, based on the real needs of the companies mentioned, can serve as a valuable analysis for the operation of the transport vehicles in use.