CC BY 4.0Flores, Merlito D.Rojas, Chrisjun V.Baterna, Jason M.Cabalbal, Clarito M.Lacbao, Denver W.Llagas, San Angelo A.Mariano, Jomar N.Mortero, Jr., Ernesto M.Palubos, Myla A.Puzon, Sherwin A.Reville, Rey D.2026-06-112026-06-112021-12Rojas, C V., Baterna, J M., Cabalba, C M., Lacbao, D W., Llagas, S A A., Mariano, J N., Mortero, E M., Jr., Palubos, M A., Puzon, S A., & Reville, R D. Improvised hydraulic jack. [Unpublished Undergraduate Thesis]. Don Mariano Marcos Memorial State University – Mid La Union Campus, City of San Fernando, La Union. Lakasa ti Sirib, DMMMSU Institutional Repository.https://lakasa.dmmmsu.edu.ph/handle/123456789/1835Full TextIn automotive industry, jacks and lifters are important in lifting vehicles when taking maintenance and troubleshooting under chassis. The main objective of the study is to develop an improvised hydraulic jack. Specifically, it achieved to construct an improvised hydraulic jack, conduct performance test in terms of how high it can lift and its capacity as well as to evaluate its level of technical performance, level of technical functionality and level of social acceptability and to prepare an operations manual of the project. The study used project development and descriptive evaluative research design. It has been found out that the IHJ is excellent in terms of its level of technical performance, greatly functional in its level of technical functionality, and very highly acceptable in its level of social acceptability.viii, 53 p.: ill. (col.).enHydraulic jacksHydraulic jacks--Maintenance and repairSocial acceptanceThesis