Posted by Ecnerwal on September 27, 2013 at 06:04:33 from (24.25.139.129):
In Reply to: Ford 4500 float valve posted by Jim13 on September 26, 2013 at 17:36:08:
IF it hasn't been "reconfigured" in the past 40+ years, the valve that's a push/pull "rod with knob" on the outside of/below the main control valves is to enable/disable auto-levelling of the bucket. It works along with a one-way valve in the connected plumbing. If some backyard mechanic has used it for something else, who knows (I have an example of each.)
You can help it with a soft-faced hammer if it's stuck, or you can leave it where it is if it suits you. If it's really good and rusty, you're probably better off leaving it alone unless you are prepared to service it when it decides to leak after you move the rusty bits around....
Float is in the main control valve - shoved all the way forward to detent. Only on lift, not on bucket.
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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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