ANALISA REALIBILITY DAN MAINTAINABILITY PADA MESIN SCREW PRESS DENGAN MENGGUNAKAN METODE DISTRIBUSI NORMAL DI PABRIK KELAPA SAWIT

Abstract

The cessation of the processing process at the palm oil mill will cause losses to the company, which can result in
low productivity of the plant. Damage to equipment at the palm oil mill requires more costs to repair the damage.
For this reason, good maintenance is needed for each equipment used in the processing process using the normal
distribution method. In this study the tool used was Screw Press. The purpose of this study was to determine the
value of Realibility and Maintainabiity by using a normal distribution and to determine the cause of damage to the
Screw Press machine. This research stage was carried out by taking data on damage and repair of Screw Press in
April-June 2017 and processing data using normal distribution. The data needed in normal distribution is the value
of Realibility, Maintainability, and standard devisia. By doing this data processing, the Screw Press machine can
operate well with reliability value in April-June 2017 on screw press 1 machines at 98%, 98%, 99% and
maintainability value of 21.78 hours, 18.8 hours, 19 , 18 hours. Whereas in screw press machine 2 in April - June
2017 the reliability value is 99%, 98%, 95% and the Maintainability value is 19.9 hours, 18.68 hours and 18 hours.