A Preliminary Study on Ergonomic Contribution to the Engineering Design Approach of a Wheel Loader Control Lever System

Studies show that heavy machinery operators are exposed to risk factors of musculoskeletal diseases. However, there has yet be a study investigating the grip analysis control levers. This preliminary aims investigate system emulates push–pull operations, handle shapes, and resistance wheel loader lever systems. The was designed, analysed, optimised using Autodesk Inventor 2019 before fabrication testing. It underwent usability testing for estimated perceived force (ergonomics analysis). tests measured sensor glove, Borg CR10 scale. data were analysed regression paired t-tests. findings suggested pulling high required higher (339.50 N) (5.625) than pushing low in manoeuvring (p < 0.05). cylindrical more but less (4.5) spherical due ergonomic design considerations Although inaccuracies measurement methods, method still effective collection, since it is challenging measure real situation with machinery. While this only simulation, provided researchers ideas may solve problems manipulation