Looks like your tractor has a flowmeter(that silver box) rather than a wheel angle sensor. JD use it on some models and it measures flow in and out of steer cylinder to somehow calculate angle. To use aog you will need to fit your own wheel angle sensor.
Yeah, I’ve got nothing like that.
The hydraulic steering control is there so that’s the nice part. All you should have to do is mount your own wheel angle sensor and then have the IBT2 control the steering control
So how does the oem WAS work in the axle? I’ve got a few different parts than you. I was wondering if I could make a WAS with a similar design right on the pivot, but everything turns with the wheel.
This is the best parts diagram I could find of the OEM. And I’m confused as to how it works…
I’m not exactly sure how it all works. I assume that where you have the grease fitting, that that grease fitting does not move, but the axle knuckle there rotates around it. I think the potentiometer WAS rotates around with the knuckle and the pin that comes out of the potentiometer stays in the same spot. I imagine you could make something like this work https://m.aliexpress.com/item/4000148633075.html?pid=808_0000_0101&spm=a2g0n.search-amp.list.4000148633075&aff_trace_key=&aff_platform=msite&m_page_id=7632amp-eijwOWxuSylAL0WIgO_wGQ1587264595194&browser_id=667274d470ab4614b8d482bca9bbd122&is_c=Y (headlight level sensor if the link is broken). Our tractor doesn’t have a grease fitting there
You say everything is moving! But the pin pointing up in the center should not totate.
Well does all rotate. I removed that grease pipe and zerk, and stuck a small screwdriver down there. It fell like its all one piece all the way down to the bottom of the steering kingpin. So I’m quite confused… 
The more I look at the parts breakdown, it seems like there may be some other different parts that we don’t have. It’s pretty bad resolution but it looks like the steering arms (33 vs 34) maybe have a slightly different design in the center. And there is that pin that look like it has keyways on it.
So if someone has an idea as how i should try and mount a WAS, I’m open to ideas.
I did not see that it was a grease point coming from the center. Maybe it is as a New Holland factory auto steer front axle, there are no top grease point for the right side king pin. So either grease point or steer point for WAS
page 20 has an idea for WAS. also a terminator to avoid error codes on JD harness .
So I’ve thought of doing something similar, but I’m not willing to make a long arm like that with just a Delphi sensor, because I’m a little worried about a block of mud breaking it off. But this looks alot stronger. I’m guessing that’s a sensor mounted on that block somehow. So is that available to buy somewhere…?
It doesn`t need to be sophisticated. 2 ball bearings bolted together, an arm on one side and a rubber tube that connects end of bolt with shaft of sensor.
And some plate to hold it together.
Or as shown here: WAS housing for Honeywell RTY series - #2 by PeterSK
Also be aware of ackermann effect here! Must probably be made with same distances and angles as on picture to reduce that effect.
Thanks. That’s what I was trying to imaging but had not seen that thread. I’ll have to figure out a way to make that. I guess that gives me a reason to buy
a 3D printer that I haven’t been able to justify. 
@timmy95 Did you ever finish this project? I’m thinking of doing the same on a 7930 (autosteer ready), which I imagine would be in the same boat as the 8230.
@JohanL Unfortunately no. I was unsure on a few things, such as how to wire the valve, whether or not there is any proper code written to control the valve, and how to best mount the WAS. Probably all solvable problems, but I just ran out of time. But I haven’t forgotten about the idea and really would still like to do it.
Just did one of these recently. It was an R version but pretty much plug and play with the latest hardware.
Danfoss PVE valve
Danfoss Vdd to Lock
Danfoss Vs to Left
Maxpwm 255
minpwm 70-ish
Encoder yellow cable gives the pulses that goes to the remote pin.
Count sensor in AgOpenGPS value set to 1 for steering disengage.
- Used WAS_H + WAS_L and differential mode to steal the WAS signal
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I’m trying to setup on a 8120 that was has a factory JD steering valve with a 4-pin JD harness and a JD factory WAS. I’m guessing it’s a Danfoss valve based on what I’ve read? Did you have any pictures or diagrams as to how you hooked everything up? Any tips/suggestions on wiring? Thanks!
