Posted by BarnyardEngineering on August 31, 2023 at 05:19:34 from (161.69.57.47):
In Reply to: update on 544 hydro PTO posted by philcaseinWPA on August 30, 2023 at 13:16:28:
What do you mean by "would not disengage?"
The "actuator" is called a "spool" because it's a hydraulic spool valve that sends pressurized hydraulic oil to a piston, which then compresses the clutch plates in the PTO to make the shaft turn.
Is the spool stuck in the up position? If yes, that's why it won't shut off. You need to get the spool to go back down to shut the PTO off. Have you gently tapped on the spool to try and get it to go back down?
OR
Does the spool drop down, yet the PTO shaft continues to turn? If that is the case, warped clutches and the PTO unit needs to come out.
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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