Determination of Oil Life for Crane Liebherr LHM 500g Model 301 by Oil Condition Monitoring

The objective of this research is to choose and investigate the best oil replacement time by oil condition monitoring for crane Liebherr LHM 500G model 301 that works near the sea in marine company. This was achieved by investigating different oil sam ple analyses of crane Liebherr LHM 500G model 301. The oil analysis was initially run under regular interval during machines life. Some series of tests were then conducted under the operating hours of machine. Oil samples were regularly collected. Numerical data produced by oil analysis were compared with another sample, in order to quantify the effectiveness of the results of oil condition monitoring technique. The results from this paper have given more understanding on the dependent and independent roles of oil analysis in predicting which oil is more suitable for working machine condition. According to the results, the oil used in this crane can be used more than 130 h and the best oil running time is 160 h.