Prosiding Seminar Nasional Inovasi Teknologi Terapan
Vol. 5 (2025): Prosiding Seminar Nasional Inovasi Teknologi Terapan

PERBAIKAN SISTEM PENGULIRAN PADA MESIN BUBUT DoALL LT 13 DI BENGKEL MEKANIK POLMAN BABEL

Yudha Pirmansyah, Sandika (Unknown)
Pratama , Jhasua (Unknown)
Ramli, Ramli (Unknown)
Pristiansyah, Pristiansyah (Unknown)

Article Info

Publish Date
22 Aug 2025

Abstract

The automatic threading system (half‑nut lever) on the DoALL LT‑13 lathe at Polman Babel's mechanical workshop failed to operate, disabling thread-cutting capability. This research aimed to document the repair process and post-repair functionality tests. The methods included 5 Why analysis, apron disassembly, cleaning, gear-idler clearance adjustment, gear surface lapping, and re-calibration of the half‑nut lever. Tests included functional check, dimensional accuracy, and thread cutting on three specimens: M27×3, M20×2.5, and M18×2.5. Results showed normal operation and all threads met ISO tolerance. The lathe is now functional for educational and light machining purposes.

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Journal Info
Prosiding Seminar Nasional Inovasi Teknologi Terapan
Website

Abbrev

snitt

Publisher

Politeknik Manufaktur Negeri Bangka Belitung

Subject

Computer Science & IT Electrical & Electronics Engineering Mechanical Engineering

Description

Seminar Nasional Inovasi Teknologi Terapan (SNITT) dikelola oleh Politeknik Manufaktur Negeri Bangka Belitung sebagai wadah rutin bagi sivitas akademika dalam berbagi pengetahuan, temuan, dan pengalaman dalam hal inovasi teknologi terapan yang berkelanjutan. SNITT ini merupakan ajang seminar ilmiah ...