The jamming mechanism diagnosis (what I would do) The situation could be anything from a self destructing bearing, to a broken tooth on a bull gear. To determine where the failed part is located, and because you have had it jam more than once, I would ask you to cause it to jamb again, but do not free it. On each brake housing there is a central cap. This cap (from looking at the parts book) is the same as found on letter series tractors, and covers the slotted end of the differential shafts (driving the pinions of the final drive) Remove these covers (they look like bearing dust covers on a trailer of non drive axle) exposing the pinion shaft ends. These are slotted. With the tractor shut off, and the trans in neutral, brakes off, and wheels on the ground, use a suitable lever or bar that fits in that exposed slot. DO not force rotation!!! The purpose of the bar is to feel the shaft for looseness. Gently turning CW and CCW feeling and looking for movement. If the shaft is stuck, go to the other side and "feel" for movement there. The bull gear and pinion will have a tiny amount of slack between the gear teeth. You are feeling for this tiny movement. If there is clearly no movement on one but not the other, there might be abroken tooth jamming the drive on the side that has no motion. If both sides have motion, jack up each side (one at a time) and feel for freedom to turn the shaft with the bar making the wheel turn. If both sides turn(independently) then ither is less likelihood that the differential and finals are broken. If one side seems locked up and will not turn with the bar, in my opinion the finals are the source of the jam. If turning harder, or rocking the tire frees the side that didn't turn, That side is the issue. If no difference is detected, and no resistance to motion is encountered turning the shafts. the issue is likely in the ring and pinion, bearings in the trans main shafts, or counter shafts, or in the intermediate pilot bearing between the input shaft and output shaft. I do not think the TA could cause this type of issue. Good luck, and get back to us in a new posting. Jim
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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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