Modeling of Repair and Maintenance Costs of 2WD Tractors in Iran

Modeling of Repair and Maintenance Costs of 2WD Tractors in Iran

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Machinery ownership and operating costs represent substantial portion of total production expenses. Ownership costs include charges for depreciation, interest of investment, taxes, insurance and housing facilities. Operating costs include repair and maintenance (RaM), i.e. spare-parts, wages and lubricants. RaM costs of machinery are those expenditures necessary to restore or maintain technical soundness and reliability of the machine. Accurate prediction of RaM costs trends is critical to determine optimum economical life of machine and to make appropriate decisions for machinery replacements, and also for general farm management purposes. Since variation in RaM costs depends on site and time specifications, a general relationship can not be suggested. But prediction of these costs at an acceptable level can be made by fitting a regression model based on the previous data. Also, great variations in RaM costs between different tractor models, tractors and their operating conditions make it difficult to obtain meaningful generalized models. The scope of this book is to model accumulated RaM costs based on accumulated usage hours for some two wheel drive tractor models in Iran.The scope of this book is to model accumulated Raamp;M costs based on accumulated usage hours for some two wheel drive tractor models in Iran.


Title:Modeling of Repair and Maintenance Costs of 2WD Tractors in Iran
Author: Majid Rashidi
Publisher:LAP Lambert Academic Publishing - 2013
ISBN-13:

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