Knight Eu3000 trailed sprayer steering problem

[Jc705]

Hi. We have a knight Eu 3000 with smartrack steering drawbar. We are having some issues with it. For some reason when we put it in manual it moves the drawbar all the way to the left. When it's put back to auto I only moves a little and won't follow the tractor at all. We have changed the front potentiometer and calibrated it. Any ideas what it could be?

 

[Bobthebuilder]

Hi. We have a knight Eu 3000 with smartrack steering drawbar. We are having some issues with it. For some reason when we put it in manual it moves the drawbar all the way to the left. When it's put back to auto I only moves a little and won't follow the tractor at all. We have changed the front potentiometer and calibrated it. Any ideas what it could be?

the 2nd potentiometer

 

[Jc705]

The 2nd one is giving a giving a signal when we put a multi meter on it. Voltage goes up and down when you move it

 

[Flat 10]

are those 3 pin plugs clean?

 

[Flat 10]

I have sent my box to david king before

 

[Jc705]

are those 3 pin plugs clean?

The plug we have is a 6 pin plug going on to the steering box in the cab.

 

[Flat 10]

The plug we have is a 6 pin plug going on to the steering box in the cab.

There’s plugs near the angle sensors? 2 or 3 pin I forget

 

[Jc705]

There’s plugs near the angle sensors? 2 or 3 pin I forget

Our one is missing the plug. We just have cable connectors but they are all ok. The 3 wires are live, earth and a signal wire is that right?

 

[Flat 10]

Our one is missing the plug. We just have cable connectors but they are all ok. The 3 wires are live, earth and a signal wire is that right?

I’m not sure but that’s what I expect

 

[Derek67]

The plug we have is a 6 pin plug going on to the steering box in the cab.

This was the culprit on mine.. was doing something the same..

 

[Jc705]

This was the culprit on mine.. was doing something the same..

So was yours going all the way to one side as well when in auto?

 

[Derek67]

So was yours going all the way to one side as well when in auto?

Yes and wouldn't stay straight or do anything except steer left.. was a bad connection in the small plug coming into the cab..

 

[Jc705]

Thank you. I'll give it a try tomorrow and finger crossed that's the problem.

Yes and wouldn't stay straight or do anything except steer left.. was a bad connection in the small plug coming into the cab..

 

[Derek67]

Thank you. I'll give it a try tomorrow and finger crossed that's the problem.

Well check the entire length of that cable for damage. It's likely to be the problem..

 

[Jc705]

Well check the entire length of that cable for damage. It's likely to be the problem..

So we found a few wiring issues. It now works absolutely fine in Auto but with the spray dependency on once you turn the sprayer off and it's goes in to manual if it's slightly to the left it keeps steering left and if it's slightly right it keeps steering right. It also does the same if the spray dependency is off but as soon as you touch the left or right steering switch to stops it powering either left or right. Hope this makes some sense

 

[Flat 10]

If you turn it off does it centre ok?

 

[Derek67]

Have you got the operators manual so you can calibrate the center??