Answers.Body: <p>Sometimes the calibration failure can be solved by reinstalling the control+ app.</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2024-01-19T09:40:34.503Z
Answers.LastActivityDate: 2024-01-19T09:40:34.503Z
Answers.UserDisplayName: Paolo Paoletti
Answers.Body: <p><a href="https://i.sstatic.net/TBlDE.png" rel="nofollow noreferrer"><img src="https://i.sstatic.net/TBlDE.png" alt="enter image description here" /></a></p>
  <p>I made a major rebuild of the D11, opened the gearbox, and found this orange <a href="https://www.bricklink.com/v2/catalog/catalogitem.page?P=35188" rel="nofollow noreferrer">Changeover Rotary Catch</a> in a false position on Step 110 (Page 107) of the instructions. After the correction, the D11 runs fine.</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2023-01-30T09:51:49.190Z
Answers.Text: Well done! Don't forget to accept your answer if it did indeed solve the original problem :)
Answers.UserDisplayName: zovits
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2023-01-30T10:24:03.877Z
Answers.Text: Thank you for your recommandation.
Answers.UserDisplayName: Jeeplego
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2023-01-30T09:21:05.987Z
Answers.LastActivityDate: 2024-01-19T13:44:16.820Z
Answers.LastEditDate: 2024-01-19T13:44:16.820Z
Answers.UserDisplayName: Jeeplego
Body: <p>I just finished the <a href="https://brickset.com/sets/42131-1/Cat-D11-Bulldozer" rel="nofollow noreferrer">D11 bulldozer</a>. The last LEGO set I built was 55 years ago; now I got this big machine and I really enjoy it!</p>
  <p>But I have trouble with the calibration and I think the failure is in the gearbox.</p>
  <p>What is the best method to reverse engineer the D11 for error correction?</p>
  <p>If possible, I don't want to totally rebuild the whole set.</p>
  
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2023-01-26T07:09:21.980Z
Comments.Text: Without any specific details of your issue there is only one option - rebuild the portion that is causing the issue and paying attention to all the details.
Comments.UserDisplayName: Alex
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2023-01-26T07:52:10.853Z
Comments.Text: I think it is the best way to fix the problem.
Comments.UserDisplayName: Jeeplego
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2023-01-26T12:14:31.167Z
Comments.Text: If you can tell us more (what actions you took, what did you expect to happen and what happened instead), provide photos or a video of the failure then we might be able to help. Otherwise the most that can be advised is to compare your model to photos or videos found on the internet (hoping you can spot something different) or try to trace the faulty function from either the motor or from the effector end.
Comments.UserDisplayName: zovits
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2023-02-08T10:30:44.323Z
Comments.Text: How complicated is a rebuild, I’ve got the same problem 
Comments.UserDisplayName: Teresa Taylor
Comments.ContentLicense: CC BY-SA 4.0
Comments.CreationDate: 2023-02-10T09:03:34.777Z
Comments.Text: The correction was therefore difficult because many parts had to be dismantled to get to the error. The error already happened during the first construction steps.
  
  But many elements can be dismantled as a whole.
  
  In the end, I had some parts left over that I still don't know where they belong.
  
  All this was a satisfying work!
Comments.UserDisplayName: Jeeplego
Tags: <technic><gears>
Title: Error correction after building the D11
UserDisplayName: Jeeplego
ThreadText: # Error correction after building the D11
  
  (Asked by: username_0 on 2023-01-26)
  
  I just finished the [D11 bulldozer](https://brickset.com/sets/42131-1/Cat-D11-Bulldozer). The last LEGO set I built was 55 years ago; now I got this big machine and I really enjoy it!
  
  But I have trouble with the calibration and I think the failure is in the gearbox.
  
  What is the best method to reverse engineer the D11 for error correction?
  
  If possible, I don't want to totally rebuild the whole set.
  
  **Tags:** technic, gears
  
  > **Comments:**
  > **username_1**: Without any specific details of your issue there is only one option - rebuild the portion that is causing the issue and paying attention to all the details.  
  > **username_0**: I think it is the best way to fix the problem.  
  > **username_2**: If you can tell us more (what actions you took, what did you expect to happen and what happened instead), provide photos or a video of the failure then we might be able to help. Otherwise the most that can be advised is to compare your model to photos or videos found on the internet (hoping you can spot something different) or try to trace the faulty function from either the motor or from the effector end.  
  > **username_3**: How complicated is a rebuild, I’ve got the same problem   
  > **username_0**: The correction was therefore difficult because many parts had to be dismantled to get to the error. The error already happened during the first construction steps.  But many elements can be dismantled as a whole.  In the end, I had some parts left over that I still don't know where they belong.  All this was a satisfying work!  
  
  ---
  
  ## 2 answers
  
  ### Answer by username_0 on 2023-01-30. Score: 8 | Accepted answer
  
  [![enter image description here](https://i.sstatic.net/TBlDE.png)](https://i.sstatic.net/TBlDE.png)
  
  I made a major rebuild of the D11, opened the gearbox, and found this orange [Changeover Rotary Catch](https://www.bricklink.com/v2/catalog/catalogitem.page?P=35188) in a false position on Step 110 (Page 107) of the instructions. After the correction, the D11 runs fine.
  
  > **Comments:**
  > **username_2**: Well done! Don't forget to accept your answer if it did indeed solve the original problem :)  
  > **username_0**: Thank you for your recommandation.  
  
  ---
  
  ### Answer by username_4 on 2024-01-19. Score: -3
  
  Sometimes the calibration failure can be solved by reinstalling the control+ app.
  
  
  ---
  
  