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The purpose of this thesis is to provide the best fit maintenance management alternative to assets owned by the company from the point of view of operational readiness. The nature of this topic is to determine the use of the reference maintenance management model, with several parameter adjustments for the implementation area at the plant and other critical operational assets. This research aims to the research is to analyze effectiveness engine oil drain interval and replacing engine oil filter to reduce contaminant on engine oil to meet acceptable level parameters as equipment manufacturing recommendation to meet target replacement 500 h using Taguchi Method. Based on the results of the analysis conducted, conclusions can be drawn (1) Oil formula factor and filter replacement have been proven to have a significant effect on all elements of the oil condition, wear metal, and additive response variables. The contribution of the oil formula factor in influencing the response was 33.33% and the contribution of the filter replacement factor in influencing the response was 66.66%. (2) The combination of factor levels that provide the most optimum results is an oil with a new formula and filter replacement is performed at 250 h. The alternative conditions that might be applicable in addition to the optimum conditions, namely oil with a new formula, but no filter replacement was performed at 250 h. (3) The average value of each element at the optimum conditions and alternative conditions compared with the applicable limit or standard, where the results can be concluded as (a) Optimum conditions: In the oil condition response variable, TBN falls into the caution category at 250 and 500 h, while OXI is normal. In the wear metal response variable Al, Cr, Fe, Pb, Cu, Sn are normal at the 250th and 500th hours. While the additive response variables, Zn, Pb, Mo are trending down but 2 other elements namely Mg and Ca have increased. (b) Alternative conditions: In the oil condition response variable, TBN falls into the caution category at the 250 and 500 h, while OXI is normal. In the wear metal response variable Al, Cr, Fe, Pb, Sn are normal at 250 and 500 h, but Cu is only normal at 250 h while at 500 h’ critical category. While the additive response variable, P and B are trending down but 4 other elements namely Zn, Mg, Ca and Mo have increased. |
