Posted by HutchOven on September 16, 2022 at 13:41:52 from (47.154.43.26):
I have an older industrial Massey ferguson 40B that has a weak steering issue.
Wheels on the ground engine running - mid to low rpm I can see the wheels trying to turn but don't. WOT and turning back and forth it will suddenly decides to turn. Seems to turn left better than right, but not much better.
Wheels off the ground engine off - Through the steering wheel it feels like a rough gear is turning somewhere internally but the wheels do turn back and forth.
Wheels off the ground engine running - at idle at wheel lock I get about 1000psi when I can get it to turn. At WOT I get about 1600psi, so it's in spec range. Problem is that I have to sit there and turn back and forth until you feel a slight drag and the engine sounds like it's under a load and the pressure will jump up.
This makes me think it's not the pump. Does anyone have experience with bad orbital valves to know if this sounds like the issue?
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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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