In the present high stress, turbulent business environment well run organizations strive to continually to enhance their capabilities to create excellent value for the customers by improving the cost effectiveness of the operations. Maintenance is thus a vital support function in business, especially increasingly large investments are being required in physical assets. In this case, the line may be running, but it is not producing the quantity it should. Yield losses consist of losses due to rejects and poor start up behavior in the line producing the products. These losses leads to low values of the Overal Equipment s Effectiveness (OEE) which provides a n indication of how effective the production process is. TPM helps to raise the value of the OEE by supplying a structure to facilitate the assessment of those losses and subsequently giving priority to dealing with the more serious offenders. An application of TPM leads to both short and long term improvements. TPM seeks to encourage the setting of ambitious, but attainable goals for raising the value of the OEE and to measure any deviation in what is achieved relative to the original objective.