The study aimed to identify the right preventive care for corrective treatment formerly used in the company. When the production process, the breakdown of the production of frequently caused by the production process operating 24 hours, and led to activities in the production process. The company has several: the boiler of a steam engine, thermal oil heater, conveyor, and chiller water. As for the data thesis research needed in this primary data conducted interviews directly with the heads of the technique, operators and mechanics. n its management will be arranged in table containing column function descriptor components and component failure of function, data - this data will be used for analysis Failure Mode and Effect Analysis (FMEA). Based on the result analysis and processing the data was already performed in pt indhoperin jaya, through a failure by both fmea analysis method known components valves expansion and be a failure for the highest of an RPN 162 and 180. Of engineering treatment with rcm keandalannya mengunnakan methods to find, reliability of expansion valves from components originally 36,8 % into 73,6 %. For the reliability of components to be 28,4 % 56,8
%
