WOW - I'm blown away by the number of reply's that this has received! So, rather
than answering each individual reply, I'll just make a blanket statement and say
thank you for all of your concerns and comments. Several of you are thinking
the same way I did as far as speculating what broke. I too am glad no one was hurt,
and believe me, I know it was a stupid move on my part, not to tie the tractor down,
just to save a few minutes. So please, no more comments about that. Thanks.
All repairs have been made, and I have several hours of use without any problems.
But I want to continue on with the story. Hopefully it will be of some help to someone
who might have a similar problem.
So, on with part 2 - teardown/diagnose.
As I mentioned earlier, several of you are thinking exactly what I was, and after reading
posts here on TBN, I also saw that this particular tractor model, JD 4200,4300,4400, has a
tendency to break the range selector shaft off. I was happy to read that, and I thought for
sure, that that was my problem. So I decided to keep tearing it down, since replacing the
selector shaft looked fairly simple. Thanks again to dfkrug for all his detailed explanations
and great photo's. Those along with the repair manual, were a great help. I removed the
rock shaft hsng so I could get a look at the internals of the range selector and PTO drive gears.
The first 2 photos are showing the internals as seen from the top. There was no damage found.
Everything functioned as it should. I decided to also remove the rear PTO cover in order to get a
look from the rear. Again, no damage seen. But there were a few small bits of metal laying in
the bottom. The 3rd photo is after removing the rear PTO cover. Upon further inspection, I
could see that there were more metal bits in the tunnel section, ahead of the rear section.
Looks like it's time to split the rear section from the tunnel. I'll get into that in part 3. For now,
I have to get busy and plow snow .... again.