123 repairs--down the rabbit hole we go!
 

Well, it's time to split the 123. What started out as "let's just swap in another motor" is taking on a new, much wider dimension .



This poor thing has worked hard its whole life. Let's see what all is wrong.



It's got OEM dirt under here!

:biggrin2::biggrin2:

This is the reason why so many people stay away from narrow frames, because they don't wanna split the tractor to work on it. But once you're used to it, it gets a lot easier. I can get my 107 split in under 30 minutes at this point, and depending on the repair required have it back together in under an hour.

Hardest part is the hydro linkage only because you've gotta find a way to get 2 wrenches in there. Everything else is pretty straight forward.

Yeah, that one nut on the ball joint that connects to the hydro linkage is tough!

Dreaded Previous Owner (DPO)
 

Rather than getting a correct spiral pin, he used a spring steel roll pin of the right size, backed up with another smaller roll pin hammered into the center of the larger on and both rusted into place.

I did get them out and both the trunion and the input shaft to the hydro are un-egged, unlike the engine end of the drive shaft!


Off to Jeff!

Thankfully, the back end doesn't look bad

Hey, what's up with these MONSTER pictures???
I am dealing with this same issue on another forum I frequent and it's starting to be a real PITA to have to fiddle around to see them and then try to read the text at the same time without a dam microscope!!

Interesting question.


I just uploaded 3 different file sizes of this image to imgur. I then copied the link that imgur rendered and the pictures all look the same size on the forum.

So in answer to your question:


I have no earthly idea.


Here's the image really cropped and it's still embiggened ...

I have no idea how to resolve the picture problem but if I could make
a suggestion. I am looking at splitting a couple NF in the future.
Some pictures of the process would sure help out. Am betting that
a whole bunch of folks in the future would love to see it.
It's one of those kinda scary things.

Ken

You will find that info in the FSM
I suggest you download a copy of it from the manuals section.
It will answer a lot of your questions.

Hi- and to follow up on Fins comments, this is the first time I've done a hydro. It's a little more complex than with a manual transmission, but not too bad.


I just followed the instructions that are found in the chassis manual and while those took a bit of study, they were correct and didn't leave anything out.



One suggestion... you'll need at minimum a way of elevating your tractor to look at it from the bottom, OR an engine hoist to lift the front so you can work at getting the various brake linkage bits apart. With the engine out, I could lift the frame/front axle enough to stand it up on a WorkMate so that I could access stuff underneath. While OSHA and common sense may convince you it's a bad idea (and you'd probably be right) it worked for me.



That having been said, I'll try and remember to take photos of the hydro/brake linkage when I reassemble.