Adam Posted July 27, 2004 Report Share Posted July 27, 2004 technically inclined please explain how a hydrastatic transmission works, i have ran a couple pieces of equipement with it, and soon i am going to be running a forwarder for my dad in the woods with one and just wanting to know a little more about it Quote Link to comment Share on other sites More sharing options...
Guest FBody Addict Posted July 28, 2004 Report Share Posted July 28, 2004 hydrastatic or hydrostatic its kinda hard to explain, but it shouldnt work any different than a normal automatic tranny using bands and stuff and go here cause i cant explain it www.howstuffworks.com Quote Link to comment Share on other sites More sharing options...
desperado Posted July 28, 2004 Report Share Posted July 28, 2004 Most from what I understand work similar to a torque convertor with a variable pitch stator. The pitch degree regulates the output speed or the tranny. Operation is simple though. You will set the engine RPM at a certain level and leave it. Then the speed control is done by the hydrostat drive Quote Link to comment Share on other sites More sharing options...
Adam Posted July 28, 2004 Author Report Share Posted July 28, 2004 yeah i have driven a couple things with it before, know "how" to work it, just wanted to know how it works Quote Link to comment Share on other sites More sharing options...
RedRocket1647545505 Posted July 29, 2004 Report Share Posted July 29, 2004 I work at an equipment rental place, and I belive those type of hystat trannys are just driven by a hydrolic pump, along with everything else. How the inner components work....couldn't tell ya. But I do believe the the speed is adjusted by valves. could be wrong though. Quote Link to comment Share on other sites More sharing options...
Awfulcanawful Posted August 1, 2004 Report Share Posted August 1, 2004 The speed of the motor is varied by the displacement of the pump or motor. The more fluid that is displaced the faster the motor will turn. When you push a lever or something forward you are probably changing the pitch of a valve plate that changes the stroke of the pistons in the motor. It is kinda hard to understand unless you can see a picture of it or a book. It all has to do with the displacement of *** fluid either from the pump or motor. Quote Link to comment Share on other sites More sharing options...
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