Re-assembling the NAA Steering Box

Daniel5555

Member
I have taken apart my NAA steering box and have new bearings etc to put it back together. I have not seen a good drawing or video of how to install the steering sectors and steering shaft so that the gears mesh correctly. Can someone point me in the right direction or give me some help?
Thanks.
 
This is from the I&T FO-19 service manual.

cvphoto4265.jpg
 
Install the steering shaft into the box making sure the bearings do not slip out of place.
I like to put the bottom bearing on the shaft and hold it there with a good gob of grease.
Install the shaft cover and tighten down.
Check for play in shaft.
Add or remove shims to where the bearing have a slight drag but the wheel is easy to turn.

Now install the double sector gear in the left side.
Point the tooth spacer up.
Match the center tooth on the sector gear with the center grove on the steering shaft.

Install the right sector gear center tooth to center grove.

Adjust the end play with the screw and lock nut on end of sector gears.

If you get it one tooth off you will find out when you install on tractor.
The sector gears have a double tooth that must match up with the steering arm.
If you are one tooth off they will not match up or your toe in/out will be way off.
Do not ask how I know this part.
 
(quoted from post at 12:50:57 05/10/20) This is from the I&T FO-19 service manual.

<img src="https://www.yesterdaystractors.com/cvphotos/cvphoto4265.jpg">


Thanks for the reply. I need to buy that manual you are referencing. My manual does not give me that information.

Here is another question: It seems as though on one side of steering sector that there are two bushings due to the thickness of the bushings but looking in from the other side, there is only one thickness of bushing. What am i seeing there and how do I remove the sector bushing and does that large bushing or spacer also come out?

Dan
 

Thanks for taking the time to write out the instructions. I think that they are pretty clear and I can put it back together.

Any suggestions for taking out the steering sector bushings? There appears to be another bushing on the outside of the steering sector bushing.

Dan
 

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