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All Journal Rekayasa Mesin JFA (Jurnal Fisika dan Aplikasinya) Jurnal Fisika FLUX JTT (Jurnal Teknologi Terpadu) AL-JAZARI JURNAL ILMIAH TEKNIK MESIN J-Dinamika: Jurnal Pengabdian Kepada Masyarakat Jurnal Pengabdian Al-Ikhlas JURNAL INOVASI TEKNIK INDUSTRI
Saifullah Arief
Universitas Islam Kalimantan Muhammad Arsyad Al Banjari Banjarmasin
Automotive Engineering Civil Engineering, Building, Construction & Architecture Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Health Professions Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mechanical Engineering Physics Social Sciences

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OPTIMALISASI AVAILABILITY FORKLIFT KOMATSU FD25C-17 SN: FA15 MELALUI PENDEKATAN ANALISIS RELIABILITY Rahman, Faisal; Herlina, Firda; Trianiza, Ice; Arief, Saifullah
Jurnal Inovasi Teknik Industri Vol 4, No 2 (2025): JURNAL INOVASI TEKNIK INDUSTRI
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat Universitas Muhammadiyah Gombong

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26753/jitin.v4i2.1910

Abstract

Forklifts are vital assets in industrial logistics systems, especially in material handling and loading and unloading activities in Warehouse and Jetty areas. High availability is an essential factor to ensure smooth operations and supply chain efficiency. This study aims to analyze the 2014 Komatsu FD25C-17 SN: FA15 forklift and determine the optimal preventive maintenance interval to maximize equipment availability. The research method employs an acoustic analysis approach, utilizing historical maintenance data from the period 1 January 2025 to 30 June 2025. The data is used to calculate the Mean Time Between Failures, Mean Time To Repair, and actual availability. A goodness-of-fit test is carried out to determine the best distribution probability, and the results show that the lognormal distribution best fits the smallest Anderson-Darling value (2.055 and 1.713). Based on the lognormal distribution parameters, a preventive maintenance interval simulation was conducted to find the optimal point (Topt), considering a minimum reliability of 49% and a maximum downtime of 18 hours. The simulation results show that the optimal maintenance interval was achieved at 224 hours of operation, with an availability value increasing from 89.71% to 92.32%. Although there was a slight decrease in the reliability value from 49.42% to 49.15%, this value was still within acceptable limits. This study concludes that implementing the Reliability-Centered Maintenance approach, based on lognormal distribution analysis, significantly increased forklift sales and availability. It can serve as a practical reference for making data-based maintenance policy decisions in the logistics industry.
Desiminasi Inovasi Teknologi Pemanfaatan Oli Bekas Pada Kompor Alternatif: Desiminasi Inovasi Teknologi Pemanfaatan Oli Bekas Pada Kompor Alternatif Arifin, Jainal; Herlina, Firda; Saukani, Muhammad; Sidiq, Abdurahim; Panca Asmara, Yuli; Sasmito, Agus; Arief, Saifullah
J-Dinamika : Jurnal Pengabdian Masyarakat Vol 10 No 3 (2025): Desember
Publisher : Politeknik Negeri Jember

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Abstract

Bedasarkan pengamatan pada Kecamatan Alalak desa Semangat dalam dan kecamatan mandastana desa bangkit baru, harga gas LPJ 3 Kg pada bulan Februari 2025 mencapai Rp 40.000/ tabung, harga ini jauh lebih tinggi dari harga eceran yang ditetapkan pemerintah sebesar Rp 18.500/ tabung, tentunya sangat memberatkan bagi masyarakat yang membeli gas dengan selisih harga normalnya, disamping itu yang memicu mahalnya gas 3 Kg ialah, langkanya gas yang dijual pada warung dan agen-agen Lpj. Penggunaan minyak tanah sebagai bahan bakar kompor sudah ditinggalkan oleh masyarakat karena harganya ikut melabung tinggi berkisar Rp 15.000/ Liter, metode kegiatan ada terdiri dari pelaksanaan persiapan dan perencanaan, desain alat dan pembuatan, selanjutnya tim mengadakan sosialisasi dan pelatihan terhadap masyarakat, terakhir implementasi dan monitoring, dengan adanya kegiatan sosialisasi dan penyuluhan tersebut masyarakat dapat belalih pemakaian Gas Lpj ke kompor alternatif berbahan bakar oli bekas, dalam kegiatan tersebut tim membuat pelatihan perakitan alat dan didemonstraasikan langsung kepada masyarakat, antusias masyarakat dalam kegiatan tersebut sangat bagus, terlihat dengan keseriusan mengikuti kegiatan yang kami laksanakan, adapun hasil kuesioner yang telah kami bagikan menunjukan 73% mereka menilai Sangat Puas, dan penilaian puas 23% sementara 0% kurang puas, penilaian ini dengan jumlah 30 orang masyarakat, harapan kepala desa bangkit baru.
Integrasi Analisis Reliability Dan Availability Dalam Penentuan Interval Perawatan Optimal Excavator Faisal Rahman; Firda Herlina; Ice Trianiza; Saifullah Arief
Jurnal Teknologi Terpadu Vol 14 No 1 (2026): JTT (Jurnal Terpadu Terpadu)
Publisher : Pusat Penelitian dan Pengabdian Kepada Masyarakat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32487/jtt.v14i1.3017

Abstract

Effective maintenance is an essential factor in ensuring the reliability and availability of equipment, especially for heavy equipment that operates intensively. This study aims to optimize the maintenance interval of excavator units by considering the value of reliability against time, to obtain a balance between reducing the risk of failure and maximizing operational availability. Historical data of time between failures (TBF) and time to repair (TTR) were collected from a PC 200 excavator unit operating in a coal mine in South Kalimantan from January 2024 to June 2025. Initial analysis was carried out using a Pareto diagram to identify critical systems, followed by failure mode and effect analysis (FMEA) to determine repair priorities. TBF and TTR modeling were tested with four probability distributions (Normal, Lognormal, Weibull, and Exponential) using the Anderson–Darling goodness-of-fit test, with the result that both data follow a Lognormal distribution. Distribution parameters were used to calculate mean time between failures (MTBF), mean time to repair (MTTR), the reliability function R(t), and availability. The results show an increase in availability from 96.15% to 96.59% after implementing the selected distribution, as well as a decrease in MTTR from 11.21 hours to 9.92 hours. Analysis of the relationship between reliability and availability resulted in an optimal maintenance interval in the range of 230–245 hours, when reliability remains above 90% and availability is around 96%.
Karakterisasi Stabilitas Termal Kaolin Tatakan Kalimantan Selatan: Muhammad Saukani, Izzatus Sholehah, Saifullah Arief, Sadang Husein Muhammad Saukani Muhammad Saukani; Izzatus Sholehah Izzatus Sholehah; Saifullah Arief Saifullah Arief; Sadang Husein Sadang Husein
Jurnal Fisika dan Aplikasinya Vol 16 No 1 (2020): January 2020 Edition
Publisher : Lembaga Penelitian dan Pengabdian Kepada Masyarakat, LPPM-ITS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.12962/j24604682.v16i1.4756

Abstract

This research is to characterize thermal stability of Kaolin from Tatakan, South Borneo. This research have been done by discussing the thermal treatment provided for kaolin clay and it used as a geopolymer base material. The FTIR, DSC-TGA, and XRD characterize the prepared kaolin clay. The DSC-TGA analysis shows that predehydroxylation occurred at temperatures of 50-120C. In addition, the dehydroxylation process started at 430-650C. However, the most stable condition is at 700-900C. Calcination temperature at kaolin clay was given at 650, 750, and 850C with dwell time of 1, 3, and 5 hours. After that, the calcination clay had characterized by FTIR and XRD. The FTIR results showed that all thermal treatments of metakaolin have formed. It was marked by the loss of the characteristic peak of kaolin with wavenumbers of 3600, and 1600 cm-1. Thermal treatment at a temperature of 750C with a holding time of 3 hours showed the largest amorphous phase formed, which was characterized by a decrease in the highest percentage of transmittance. The crystalline peak of kaolin XRD data at 750C shows that the peak of the crystalline phase of kaolinite was lost. It indicates that metakaolin has formed. Based on the results, it shows that the optimum thermal temperature that given to the kaolin Tatakan to create reactive metakaolin is 750C for 3 hours.
Co-Authors Abdurahim Sidiq Achmad Noerkhaerin Putra Agus Sasmito, Agus Ahmadil Amin Budi Hartadi Faisal Rahman Faisal Rahman, Faisal Firda Herlina Heri Irawan Heri Irawan Heri Irawan Ice Trianiza Izzatus Sholehah Izzatus Sholehah Izzatus Sholehah Jainal Arifin Muhammad Abduh Muhammad Firman Muhammad Firman Muhammad Firman Muhammad Firman Muhammad Irfansyah Muhammad Marsudi Muhammad Rizki Muhammad Saukani Muhammad Saukani Muhammad Suprapto Muhammad Suprapto Mujiburrahman Mujiburrahman Pratikto Pratikto rendi , Rendi Rendi Rendi Rendi, Rendi Sadang Husein Sadang Husein Sadang Husein Saukani, Muhammad Trianiza, Ice Yassyir Maulana Yudy Surya Irawan Yuli Panca Asmara