Front-wheel-drive (FWD) vehicles are widely used because of their simple construction, fuel efficiency, and relatively low maintenance costs. However, rear tire damage on the road often makes vehicle handling difficult because conventional jacks are less practical for moving the vehicle. This study aims to manufacture a portable mechanical dolly jack with a maximum load capacity of 400 kg to lift the rear wheel of an FWD vehicle, allowing the vehicle to be moved to the nearest repair shop. The manufacturing process included literature review, design development, material procurement, machining, assembly, and testing. The materials used consisted of hollow steel sections, steel shafts, steel plates, and steel pipes. The evaluation included manufacturing time and cost estimation, direct mobility testing on a vehicle, and structural strength analysis using Finite Element Analysis (FEA). The test results showed that the device was capable of lifting loads of up to 400 kg and moving properly without damage. Therefore, the developed portable mechanical dolly jack fulfilled the intended functional requirements and can be used as a practical and easy-to-operate device for lifting and moving vehicles in emergency situations.
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