Thesis Open Access
This thesis is concerned with maintenance practice at Component Rebuilding Center in the case of ries engineering share company in Addis Ababa head quarter located at akaki- kality sub city , it analysis the maintenance practice activities within the organization. The specific objectives are derived to provide focus for the research activities, In order to achieve these objectives; descriptive research design and a combination of quantitative and a qualitative approach was used. since some features of the maintenance practice is expressed by numerical; and the quantitative approach helps the researcher to examine to know frequency of maintenance failures, cost of spare part and the like and also some features of the maintenance practice are also expressed qualitatively like work procedures employed, types of maintenance exercised, and goodness of maintenance plan. Qualitative data was collected by non structured interview (from different levels of management and supervisors) , and the secondary data found from the review of different machinery history file are presented by frequency, percentage and tables to show (examine), frequency of machine failures, downtime amount , spare and maintenance cost and the like. In the study both stratified random sampling and convenient sampling are used to select representative of the population for the study period with a total population of 36. The key findings of the research indicate that the case study organizations preventive maintenance strategy is not being performed as per the schedules of the manufacturer recommendations. Frequent failure problem and stretched downtime are also some of the findings. The case company is recommended to create strong integration among departments and ownership of their work. By taking into considerations these and other factors which can be addressed by effective and efficient implementation of optimum and modern proved maintenance strategies; RESCO will be granted to the improvement of availability by about 26.1% from the existing availability which estimated in the data collection and analysis phase of this work.