Lifting Ratchet Rack Mechanism 06 July 2017, 19:00 Sorry, your browser doesn't support embedded videos, but don't worry, you can download it and watch it with your favorite video player! Move green lever up down to lift the load (not shown) hung on the yellow hook. « previous mechanism Bar Mechanism for Reversing Rotation next mechanism » Four-Wheel Vehicle load comments Please enable JavaScript to view the comments.