Back in the 70's a neighbor mistook the 303 hydraulic oil can for motor oil can at a oil change during spring tillage. The 4020 started burning oil and needed an overhaul after running hard for half a day with a full pan of 303 hydraulic oil in the engine.
If you only have one quart of hydraulic oil in the pan and no motor oil yet, I would drain the pan and start over. One quart of hydraulic oil is only what $5 or $6?
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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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