Preventive maintenance planing of a plastic packaging company

Abstract

The objective of this thesis is to study the cause of machine breakdown and loss time in maintenance process of milk container 200 cc. Inorder to let the machine keep continue running by implement the preventive maintenance. The major cause of loss time in machine breakdown can be separated in to three majors; 1. poor in maintenance document, 2. improper maintenance managemant system, 3. staff low quality. At first study the cause of machine breakdown and calculate the average of working life by MTBF. The data that calculate from MTBF can be a guide in order to set the maintenance plan. Secondimprove in maintenance management system by insert the chief of section. Third set up the importance document such as job request, work order, inspection card amd etc. From the study, The maintenance system has been changed. The preventive maintenance has been implemented, the maintenance management has been improve and the steffs skill has been improve. After the implementation of the preventive maintenance program, it is found that the loss time in maintenance is decreased from 442 hours to 264 hours in six months.