Electronic Theses and Dissertation

ABSTRAK
Konveyor skrup Fuller-Kinyon Screw Pump Type M merupakan salah satu peralatan vital pada Departemen Logistik PT. Solusi Bangun Andalas yang berfungsi mengangkut material semen bubuk secara kontinu melalui kombinasi sistem mekanis dan pneumatik berkapasitas 600 MTPH. Pengoperasian yang terus-menerus dan kontak dengan material bersifat abrasif berpotensi menimbulkan keausan serta gangguan teknis yang memicu terhentinya proses produksi. Penelitian ini bertujuan untuk mengidentifikasi prinsip kerja, memetakan komponen utama, menganalisis jenis dan penyebab kerusakan, serta mengevaluasi sistem perawatan yang diterapkan pada alat tersebut.
Metode penelitian yang digunakan adalah deskriptif kualitatif dengan pendekatan studi kasus melalui observasi lapangan, wawancara teknis, dokumentasi, dan pengukuran variabel operasi menggunakan instrumen seperti Infrared Thermometer, Tachometer, Vibration Meter, serta jangka sorong. Penelitian dilaksanakan pada bulan Oktober hingga Desember 2025. Hasil pemeriksaan awal menunjukkan adanya kerusakan kritis berupa keausan berat dan retakan pada ulir screw akibat gesekan abrasif material semen, serta lonjakan suhu bantalan (bearing) melebihi 90°C disertai suara abnormal akibat efisiensi pelumasan yang menurun.
Tindakan perawatan dan pemeliharaan perbaikan yang dilakukan meliputi rekayasa perbaikan ulir melalui proses pengelasan (welding overlay/hard-facing) dan pengecatan pelindung, penggantian unit bantalan yang rusak, pembersihan area casing, inspeksi kelurusan kopling, pengencangan sabuk-V, serta pembaharuan skema pelumasan secara berkala. Penerapan perawatan preventif dan korektif secara terstruktur ini terbukti efektif mengembalikan performa operasional mesin, menekan tingkat downtime, mencegah kerusakan fatal pada komponen poros, serta memperpanjang umur pakai (lifetime) peralatan secara keseluruhan.

Kata Kunci: Konveyor Skrup, Fuller-Kinyon Screw Pump Type M, Perawatan Preventif, Keausan Ulir, Pelumasan Bantalan, PT. Solusi Bangun Andalas.

ABSTRACT The Fuller-Kinyon Screw Pump Type M conveyor is a critical piece of equipment in the Logistics Department of PT. Solusi Bangun Andalas, designed to transport powder cement material continuously through a combination of mechanical and pneumatic systems with a capacity of 600 MTPH. Continuous operation in an environment handling highly abrasive materials frequently leads to mechanical wear and operational issues that risk halting production. This study aims to analyze the working principles, identify main components, evaluate failure modes and root causes, and assess the effectiveness of the maintenance system applied to the conveyor. This study employed a qualitative descriptive method with a case study approach, utilizing field observations, technical interviews, documentation, and direct diagnostic measurements using tools such as an Infrared Thermometer, Tachometer, Vibration Meter, and Vernier Caliper. The research was conducted from October to December 2025. Initial inspection findings revealed critical failures, including severe thread wear and surface cracking on the screw flighting caused by continuous abrasive friction with cement powder, as well as an overheating bearing reaching temperatures over 90°C accompanied by abnormal noise due to degraded lubrication. Corrective and preventive maintenance actions performed included screw flight restoration via hard-facing welding and protective coating, replacement of damaged roller bearings, thorough casing cleaning, coupling alignment checks, V-belt tensioning, and establishing a regular re-lubrication schedule. The implementation of structured preventive and corrective maintenance successfully restored full operational efficiency, minimized unplanned machine downtime, prevented catastrophic drive shaft failure, and extended the overall service life of the conveyor components. Keywords: Screw Conveyor, Fuller-Kinyon Screw Pump Type M, Preventive Maintenance, Screw Flight Wear, Bearing Lubrication, PT. Solusi Bangun Andalas.