The great problem of preventive maintenance to maintain operational readiness and keeping equipment, machinery and facility. Use planning system and provide maintenance and repair services, we create the most favorable adopt best practices for organizations with maximum efficiency, sustainability and cost reduction, in the absence of the restrictions on the increase investments of sources and of the There. To use this system needs to identify some of the important factors affecting its performance is always a cost associated beneficial results will be achieved. The research effort is to identify and prioritize the factors influencing them using Analytical Hierarchy Process in the organizations bus Tabriz through the questions and comments of managers and experts have been addressed.According to the obtained results, it is observed that the main criterion of technology with a coefficient of priority (0.1290) has the highest importance among the studied criteria. Also, the criteria of structural problems (0.1230), cultural issues (0.1119) and lack of proper knowledge of the net (0.0986) have the next ranks.



Findings: In this regard, 12 sub-factors were identified, which were categorized into the main criteria of technology, structural problems, cultural issues and lack of proper recognition of the net, According to the obtained results, it can be seen that the main criterion of technology has the highest importance among the examined criteria. Also, the criteria of structural problems, cultural issues and lack of proper recognition of net have the next ranks.