Open AccessPreventive Maintenance Scheduling for Shifter Machine in Flour Mills
Author(s) -
Wahyukaton Wahyukaton
Publication year - 2020
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/847/1/012031
Subject(s) - preventive maintenance , factory (object oriented programming) , mean time between failures , operations management , engineering , mathematics , computer science , reliability engineering , failure rate , programming language
PT. Indofood Sukses Makmur Tbk, Divisi Bogasari Flour Mills is one of biggest food factory especially for producing flour. In this flour mills division has several machines which are composed from several components, so that the maintenance division has to keep all the machines in a good performance. The factory has three shifter machines which were composed 3 critical components which are motor, bearing, and shifter and they were experienced 133 breakdowns in the last 6 months in 2019. The maintenance was conducted by determining a Mean Time to Failure (MTTF) value and conducted a preventive maintenance. The calculations result showed for 3 critical components were motor has a replacement interval time at 781 hours (day 98 th ) with the availability value was 0, 99914, bearing has a replacement interval time at 994 hours (day 124 th ) with the availability value was 0, 999255, and shifter has a replacement interval time at 575 hours (day 72 nd ) with the availability value was 0, 998729.