Mabalot, Mhicos Joshua O. <br/><br/>
Development of semi - automatic gear oil refilling for differential/ 
Mhicos Joshua O. Mabalot, Paul Joseph F. Macalino, Jagie Pantaleon, Joseph Roderick M. Ramos, Paul Manaseh T. Tatel, And Kiel Nahum T.vargas.-- 
 - Manila:  Technological University of the Philippines,  2025. 
 - xiii, 101pages:  29cm. 
<br/><br/> Bachelor's thesis 
<br/><br/>College of Industrial Technology.-- 
<br/><br/>Includes bibliographic references and index. 
<br/><br/> Mechanical oil pumps have been used in the automotive industry due to their relatively<br/>simple design, small overall dimensions, mass, ease of reversal, and maintainability.<br/>However, problems arise using this pump which include inadequate gear oil refill, pump<br/>calibration, inconsistent gear oil flow during refill due to possible leaks and spills, exposure<br/>of oil to outside contaminants, and discomfort while doing the process. Inadequate gear oil<br/>causes wear and tear between gears that leads to abnormal noise during operations. The<br/>developed semi-automatic gear oil refilling functions as a refilling machine that resolves<br/>not only leaks and spill issues but also contamination. This prototype benefits not only auto<br/>mechanics but also people with vehicles. The prototype also reduces the duration of gear<br/>oil refilling for the differential which benefits technicians by reducing the discomfort of<br/>refilling the differential. The design of the prototype also addresses the issues of spills,<br/>leaks, and contamination because it is secured with proper fittings and enclosed in a storage<br/>tank to reduce the risk of contaminants getting into the oil. The prototype was tested for<br/>how long the process of refilling is using the semi-automatic gear oil refilling versus the<br/>conventional way and the test results showed the semi-automatic process was much faster,<br/>averaging just 4 minutes and 18 seconds versus the conventional method which took 14<br/>minutes and 54 seconds. The overall time saved on average was 10 minutes and 36 seconds.<br/>The prototype was evaluated by 50 evaluators composed of engineers, auto mechanics,<br/>technicians, and automotive students under College of Industrial Technology of the<br/>Technological University of the Philippines. It was rated with an overall mean of 4.56 with<br/>a descriptive rating of “Excellent”. This signifies that the device is useful for automotive<br/>mechanics and technicians in terms of Functionality, Aesthetics, Workability, Durability,<br/>Economy, and Safety. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Differential<br/>Refilling<br/>Semi-automatic
<br/><br/><label>LC Class. No.: </label>BTH TL 146   / M33 2025