A Analysis of Preventive Maintenance Schedule of Xym1900 Vertical Roller Mill Crusher Machine using MTBF (Mean Time Between Failures) Method Based on RCA (Root Cause Analysis). ITEJ (Information Technology Engineering Journals), [S. l.], v. 10, n. 1, p. 78–92, 2025. DOI: 10.24235/itej.v10i1.205. Disponível em: https://itej.uinssc.ac.id/index.php/itej/article/view/205. Acesso em: 10 mar. 2026.