If its anything like a 4400 there are a few things to check. One is the linkage. One linkage for each side. The other is the tow valves on top of the hydraulic pump/control unit. There is one for each side. I do not recall right off the top of my head, but both should be orientated the same way. They release pressure on the drive motors. The other is to open up the reservoirs and see if the main drive chain has pop off. There should be two bolts on top that you loosen to slide the cover over to remove it. You will see a three sprocket and chain setup. The large sprocket goes down to the drive motor. The smaller sprockets go to each wheel.
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Today's Featured Article - A Cautionary Tale - by Ian Minshull. In the early 1950s my father bought an Allis Chalmers B and I used it for all the row crop work with the mangolds and potatoes, rolling and the haymaking on our farm. The farm and the Allis were sold and I have spent a lifetime working on farms throughout the country. I promised myself that one day I would own an Allis. That time event
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