Posted by Crazy Horse on October 22, 2015 at 14:48:20 from (75.158.36.9):
We have a 1975 Satoh 650G here, Japanese-made small tractor (2200 pounds) with a 3-point class one hitch. I don't expect many here to know these tractors inside out but I suspect that most 3-point systems work the same (or in a similar) way. Haven't had the tractor very long but the 3-point hitch was working (although I think the arms dropped after shutting the tractor down), not sure how well it worked, we never had an implement hooked up to it, but it did lift (with maybe a wee bit of chatter).
So last week I drained out the hydraulic oil, only 5 litres in there. Also cleaned out the metal mesh filter screen. It drained for a couple of days before I got back to refilling it. Started the tractor up today and the 3-point arms would not lift when putting the lever in the lift position.
Any suggestions as to what might be the problem? Maybe an air lock of some kind or someone mentioned the pump maybe losing its prime. Anyways, I appreciate all responses .....
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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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