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 - Grain Threshing in the Early 40's - by Jerry D. Coleman. How many of you can sit there and say that you have plowed with a mule? Well I would say not many, but maybe a few. This story is about the day my Grandfather Brown (true name) decided along with my parents to purchase a new Ford tractor. It wasn't really new except to us. The year was about 1967 and my father found a good used Ford 601 tractor to use on the farm instead of "Bob", our old mule. Now my grandfather had had this mule since the mid 40's and he was getting some age on him. S
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