Posted by cpalermo on September 10, 2008 at 15:20:58 from (74.33.240.236):
Hello. I have an Int'l 300 Utility. Over the last 3 or 4 years, I've tinkered here and there with the tractor, trying to get it to be a reliable machine for the homestead.
My latest problem has me stumped, and it is the hydraulics. On the top of the hydraulic box, just under the back right side of the seat, there is a round recessed area. Inside this recessed area is a washer, on top of which is a small round "nub." The nub resembles a grease fitting, though there is no hold on the top of it, nor is there a hex head to turn it out. My only thought was that it looked like some type of pressure relief mechanism.
When I use the hydraulics to either lift, or apply down pressure to the three point hitch, hydraulic fluid sprays out of that spot with considerable pressure. Also, if I pull the lever ALL the way in either direction, it doesn't spray It is only when the lever is traveling (or held) at some point between its normal position and fully engaged.
Does anyone have any idea what might cause this? Or know what the function of the little recess/washer/nub is?
Incidentally, this started happening right after I replaced a leaking hose on the steering system. I did not remove any other hoses, and am sure the the new hose was installed properly.
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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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