Heavy equipment relies on hydraulic fluid in order to allow the operator to control the hydraulic fluid using a control valve that is connected to tubes and distributor hoses. Vehicles using hydraulic cylinders are not connected to a valve to control a car or truck, but use piston driven hydraulics.
In this type of machine, high-pressure liquid called hydraulic fluid is transmitted throughout the machine to various hydraulic motors and hydraulic cylinders. Description from ustudy.in. I searched for this on bing.com/images
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Simple Hydrolic Machines: https://www.youtube.com/watch?t=69&v=VFje0G69ku8 Robotic Arm Kit Amazon: http://www.amazon.com/American-Science-Surplus-Pathfinders-Robotic/dp/B0087V3N3U/ref=sr_1_4?s=toys-and-games&ie=UTF8&qid=1443491652&sr=1-4&keywords=hydraulic 4 Machine Kit: http://www.amazon.com/Pathfinders-Hydraulic-Machines-Platform-Excavator/dp/B00192MFDS/ref=sr_1_1?s=toys-and-games&ie=UTF8&qid=1443491652&sr=1-1&keywords=hydraulic Syringes and tubing could also be purchased separately…