It's a combination of electric and hydraulic. A unit sits behind the blade on the bracket. A 12 volt motor about the size of a starter motor drives a built-in hydraulic pump. There are hydraulic cylinders that lift the blade and angle it. A T handle "joy stick" in the cab controls the lift and the blade angle through armored cables similar to shift and throttle controls on a boat.
A micro switch in the controller applies power to the unit and runs the motor only when hydraulic pressure is called for.
Make sense? I once had a unit that was pure hydraulic and used a Chrysler power steering pump for a hydraulic pump. Which required a bracket for the pump and another belt off the crank pulley to run it.
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Today's Featured Article - Farmall 460: That's My Girl - by LeAnn R. Ralph. How many sounds can you think of that are as familiar to you as your own breathing? What about the hum of your refrigerator? Or the thump of your clothes dryer? Maybe the engine of your car? You hear those sounds every day, and you don't think much about them, do you. I can think of a few common, ordinary sounds in my daily life, too.
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