Development of a Four Speed Manual Transmission System Instructional Model

Authors: Vergel E. Tampes , Darrel Lee E. Tampes and Keno S. Domingo

Abstract: Improvement of the project design in every institution is a never-ending process in order to cope with the needs. In college and universities, said that having an instructional model is helpful for understanding a lesson. To contribute to the process, a four-speed manual transmission system instructional model was made. The design of improved project is more suitable for hands-on experiences and it also provides a different kind of activities to gain more knowledge about manual transmission system. The study is about manual transmission, specifically, Toyota four speed manual transmission was used. It is a speed power changing device located between the engine and the driving wheels of a vehicle. The development of the project would be helpful in preparation of students for their TESDA assessment. The design project was rehabilitated and restored in the author’s residence from November 2016 to May 2017. The study was focused in manual transmission only, this is limited the discussion of other parts and assembly of the project. 

Keywords: Transmission System, Instructional Model

Analysis on the Occupational Risk Factors of Manual Tasks in Wood Furniture Manufacturing Associated to Musculoskeletal Disorders of the Hand and Wrists

Authors: Justine Karl D. Ambat, Anthea Marie C. Pido, and Gerry M. Castillo

Abstract: The study was conducted to identify the ergonomic risk factors of manual tasks in wood furniture manufacturing associated to musculoskeletal disorders of woodcarvers. Job related attributes such as working condition, types of activities perform and working postures were tested with the frequency and severity of the symptoms to identify the risk factors that contribute to the occurrence of musculoskeletal disorders and other related illness to woodcarving. The participants of the study were one hundred (100) woodcarvers residing at Pakil, Paete, Laguna. Woodcarving process was considered in the study, which involved shaping of wood, lifting, design detailing, wood finishing and even final touches like painting and varnishing. Through industrial engineering tools and techniques, ergonomic risk factors in woodcarving were then identified. Job related attributes and frequency and severity of musculoskeletal disorders symptoms were also obtained. Job Strain Index worksheet was used to evaluate working condition and determine variables that affects musculoskeletal disorder occurrence like intensity of exertion, duration of exertion, efferts per minute, Hand/wrist posture, speed of work, and durations per day. These variables determined the rating value to evaluate if a worker is within safe work or not.

Keywords: MSDs, Ergonomics, Furniture