OK,
Sorry that I have been photographically challenged on this project. I have been getting help from a neighbor and when you have free help, you don't let it sit while you snap a set of pics!
Here's the latest and greatest. First off, I found the root cause for the failure. Seems when the trans was rebuilt last time (by me), the shaft that the main cluster of gears sits on was bent. Actually, just the "nose" where the input shaft mates to the front bearing. It was bent 0.037" total indicated runout. That's not much, unless it is a precision shaft like for a transmission! It being bent made it bind when I assembled it. Thinking I had shimmed it wrong, I added shims to make it unbind. When the banana bend was away from the bind, it was double far due to the extra shims. When power is being transfered, teeth will snap right off.
Here is a pic of the shaft. That little thing I am pointing to is 0.75" diameter and it is the only thing bent.
I was able to get a used shaft from John Smith in Illinois. Google him with "8N Ford Tractor". The shaft came in yesterday around noon. By 1:30 gears were back on and the correct preload was set with help from my neighbor, who has experience. By 4 the trans was all back together. That was a bit longer as we double checked a couple times to make sure everything was just so. Then we worked after supper to put the trans back on the rear end, and get that assembly back onto the tractor. It being an industrial TLB with external frame rails, BH mounts, FEL mounts, hydraulic lines and other stuff, it was a slow process. But it yielded to our persuasion and was back together by 1 AM. It would have been an hour or more sooner, but "somebody" parked the tractor in such a place that to move the cherry picker around, it had to be taken apart and put back together. And it was moved from front, to side to back and around a lot.
I still have more to do to put all the little pieces back on, but it should go pretty quick.
jb
Sorry that I have been photographically challenged on this project. I have been getting help from a neighbor and when you have free help, you don't let it sit while you snap a set of pics!
Here's the latest and greatest. First off, I found the root cause for the failure. Seems when the trans was rebuilt last time (by me), the shaft that the main cluster of gears sits on was bent. Actually, just the "nose" where the input shaft mates to the front bearing. It was bent 0.037" total indicated runout. That's not much, unless it is a precision shaft like for a transmission! It being bent made it bind when I assembled it. Thinking I had shimmed it wrong, I added shims to make it unbind. When the banana bend was away from the bind, it was double far due to the extra shims. When power is being transfered, teeth will snap right off.
Here is a pic of the shaft. That little thing I am pointing to is 0.75" diameter and it is the only thing bent.
I was able to get a used shaft from John Smith in Illinois. Google him with "8N Ford Tractor". The shaft came in yesterday around noon. By 1:30 gears were back on and the correct preload was set with help from my neighbor, who has experience. By 4 the trans was all back together. That was a bit longer as we double checked a couple times to make sure everything was just so. Then we worked after supper to put the trans back on the rear end, and get that assembly back onto the tractor. It being an industrial TLB with external frame rails, BH mounts, FEL mounts, hydraulic lines and other stuff, it was a slow process. But it yielded to our persuasion and was back together by 1 AM. It would have been an hour or more sooner, but "somebody" parked the tractor in such a place that to move the cherry picker around, it had to be taken apart and put back together. And it was moved from front, to side to back and around a lot.
I still have more to do to put all the little pieces back on, but it should go pretty quick.
jb