Design, analysis and fabrication of wheel dolly jack / Muhammad Haiqal Danish Ahmad and Nor Liawati Abu Othman

Jack is a device that uses a mechanical mechanism to amplify force in order to lift heavy objects beyond human capabilities. Wheel dolly jack is an advanced variant of jack that has the ability to lift and move the vehicle. To use the wheel dolly jack, the user must first extend the wheel dolly jack and slide it under the vehicle’s wheel. Then, turn the lock handle so the wheel dolly jack won’t extend when used. Press the foot pump repeatedly to retract the cylinders slowly and clamp the vehicle’s wheel. The cylinders will push and lift the vehicle’s wheel. The results of testing show that the prototype is able to lift compact and midsize class vehicles but unable to lift large class vehicles. The prototype is also unable to descent the lifted wheel which is an unforeseen factor of the project. This problem can be solved with the use of lubricant. It is also difficult to see the full potential of the wheel dolly jack since we only have 1 prototype when the standard use requires a 4-wheel dolly jack. The results show that the prototype is far from perfect with plenty of room for improvement