Posted by James22 on June 16, 2013 at 22:49:47 from (207.179.239.193):
In Reply to: MM M670 steering posted by G1355 on June 16, 2013 at 11:13:18:
Had a similar problem but not as bad when I replaced the hand metering unit or steering valve attached to the steering wheel because it was worn a little and had some internal leakage. The internal leakage required the driver to turn the wheel slightly clockwise while roading to remain parallel/straight. A salvage yard sold me a nearly new valve from an MM combine which they said would work. However it didn't and I had some of your steering problems that weren't quite so pronounced. The salvage yard also had a nearly new valve for considerably more money ($1000) that was removed from an similar tractor many years ago that was gathering dust because no one was willing to fork over the cash. No parts to rebuild the old one and the "new" one didn't work so rather than go backwards I coughed up the money and it works great. Thus I would first check and be sure someone didn't swap-in an incorrect unit
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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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