The shuttle valve is not too difficult to service. It is accessed through a hole in the Hydro housing that has a large pipe plug in it. when the snap ring comes off the usual symptom is that the tractor will not move forward from the neutral position until you first put it in reverse.
Another possibility it the drive control valve either is out of adjustment or has a spring problem. That is the valve that is activated when you move the speed control lever to either side before going forward or backwards. Try holding the speed control lever more to the side when slowing down and see if that changes things.
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Today's Featured Article - Hydraulic Basics - Part 2 - by Curtis Von Fange. In the last entry to this series we gave a brief overview of hydraulic system theory, its basic components and how it works. Now lets take a look at some general maintenance tips that will keep our system operating to its fullest potential. The two biggest enemies to a hydraulic system are dirt and water. Dirt can score the insides of cylinders, spool valves and pumps. Wate
... [Read Article]
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