Answers.Body: <p>The speed regulator light being on is a good start. It looks like you have things set up correctly as far as I can tell.</p>
  
  <p>The first step is to identify which part is having issues. All of these parts can be purchased on Bricklink, so once you know what has failed, you can replace the defective part.</p>
  
  <p>Here are some ideas for testing components:</p>
  
  <ul>
  <li>If you have a 9V light brick or similar, you can attach it directly to the speed regulator to see if that is delivering power.</li>
  <li>It's fairly easy to test if power is getting to the track if you have a volt meter handy. You can simply measure the voltage between the tracks when you have the regulator turned all the way up. If this reads around 9 volts, then everything is working except the train motor.</li>
  <li>You can test the motor by connecting one pole of a 9V battery to one side of the wheels and one side of the battery to the other. You'll need to use a paper clip or something to bridge the gap. If the motor spins, you know that it isn't the issue.</li>
  <li>You can also directly power the track using a 9V battery. You just need one pole on one rail and one on the other. You can make the connection using a small wire, paper clip, or whatever you have handy.</li>
  </ul>
  
  <p>If any of that doesn't make sense, let me know and I can add more detail and/or pictures. Let us know what works and then we can go from there.</p>
  
Answers.ContentLicense: CC BY-SA 3.0
Answers.CreationDate: 2017-02-09T01:21:53.490Z
Answers.LastActivityDate: 2017-02-09T01:21:53.490Z
Answers.UserDisplayName: jncraton
Answers.Body: <p>If there is a suspicion that the metal surfaces have developed dust and grime or any other insulating layer, a solution would be to give the tracks a Brasso (or other metal polish) wipe and quick rinse and dry with water. Also give the train motor wheels a wipe of the same polish.</p>
  
  <p>Also check this YouTube video <a href="https://www.youtube.com/watch?v=RCda7voqyUY" rel="nofollow noreferrer">https://www.youtube.com/watch?v=RCda7voqyUY</a></p>
  
  <p>Edit 2: not having Brasso made me try a standard cleaning wet-wipe and after a few wipes it felt smoother (less sticky/rubbing) and guess what? One motor runs perfectly fine, the other stops after a few seconds, I've opened that one up and cleaned the insides (grease got dusty and hard) and it now runs fine without any grease and sounds way better!</p>
  
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-04-30T07:37:31.103Z
Answers.Text: Hi Tom and welcome to Bricks.SE! I took the liberty to add a clause about the specific problem this method solves, just to avoid anyone trying this unnecessarily (like when all involved metal surfaces are squeaky clean). If you don't like this edit, feel free to update, extend, amend or rollback.
Answers.UserDisplayName: zovits
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-04-30T17:36:40.927Z
Answers.Text: It doesn't even look like there is rust on his tracks.
Answers.UserDisplayName: mindstormsboi
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-05-01T09:41:55.963Z
Answers.Text: @mindstormsboi it doesn't seem like rust build up, which would be rather unlikely since it's either stainless steel or a nickel/zinc alloy but there very well could be a layer of build up dust and grime not neccesarily visible with the naked eye but very well eletrically insulating
Answers.UserDisplayName: Tom Hofman
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-05-01T09:45:26.537Z
Answers.Text: @zovits thanks for the edit, but it's _very_ unlikely for rust to occur it's more likely dust & grime
Answers.UserDisplayName: Tom Hofman
Answers.ContentLicense: CC BY-SA 4.0
Answers.CreationDate: 2020-04-30T06:45:02.580Z
Answers.LastActivityDate: 2020-05-01T09:44:52.667Z
Answers.LastEditDate: 2020-05-01T09:44:52.667Z
Answers.UserDisplayName: Tom Hofman
Body: <p>My son just received an old LEGO 9V electric train (no model numbers or instructions) from a family member. </p>
  
  <p>I've set it up and turned it on. It lights up but when I put one of the trains or just the train motor (refer to image below) on the tracks nothing happens. </p>
  
  <p>I've connected the Train Speed Regulator to the power adapter and turned it on, then connected (to the top of the speed regulator) the extension wire with the train track clip things to each side of the tracks - refer below. </p>
  
  <p>Is this the correct way to set it up?</p>
  
  <p><a href="https://i.sstatic.net/ELZB1.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/ELZB1.jpg" alt="power setup"></a></p>
  
  <p>And set up the track in the smallest possible loop for testing:</p>
  
  <p><a href="https://i.sstatic.net/9emxm.jpg" rel="nofollow noreferrer"><img src="https://i.sstatic.net/9emxm.jpg" alt="circle of track"></a></p>
  
  <p>If anyone has any suggestions or solutions on how to make this work or the correct way to set it up it would be greatly appreciated!</p>
  
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2017-02-08T22:50:42.823Z
Comments.Text: thanks @AlexanderO'Mara ! - do you know if these cars can be fixed - or new ones purchased?
Comments.UserDisplayName: Justin Kelly
Comments.ContentLicense: CC BY-SA 3.0
Comments.CreationDate: 2017-02-08T23:00:31.617Z
Comments.Text: I don't think they are generally repairable unfortunately. If you're lucky, it might just be something isn't connecting. If unlucky, you can buy them 2nd hand on BrickLink and others: https://www.bricklink.com/v2/catalog/catalogitem.page?P=590
Comments.UserDisplayName: Alexander O'Mara
Tags: <trains><9v><tracks>
Title: Electric train set not working - even though the light is on
UserDisplayName: Justin Kelly
ThreadText: # Electric train set not working - even though the light is on
  
  (Asked by: username_0 on 2017-02-08)
  
  My son just received an old LEGO 9V electric train (no model numbers or instructions) from a family member.
  
  I've set it up and turned it on. It lights up but when I put one of the trains or just the train motor (refer to image below) on the tracks nothing happens.
  
  I've connected the Train Speed Regulator to the power adapter and turned it on, then connected (to the top of the speed regulator) the extension wire with the train track clip things to each side of the tracks - refer below.
  
  Is this the correct way to set it up?
  
  [![power setup](https://i.sstatic.net/ELZB1.jpg)](https://i.sstatic.net/ELZB1.jpg)
  
  And set up the track in the smallest possible loop for testing:
  
  [![circle of track](https://i.sstatic.net/9emxm.jpg)](https://i.sstatic.net/9emxm.jpg)
  
  If anyone has any suggestions or solutions on how to make this work or the correct way to set it up it would be greatly appreciated!
  
  **Tags:** trains, 9v, tracks
  > **Comments:**
  > **username_0**: thanks @AlexanderO'Mara ! - do you know if these cars can be fixed - or new ones purchased?  
  > **username_1**: I don't think they are generally repairable unfortunately. If you're lucky, it might just be something isn't connecting. If unlucky, you can buy them 2nd hand on BrickLink and others: https://www.bricklink.com/v2/catalog/catalogitem.page?P=590  
  
  ---
  
  ## 2 answers
  
  ### Answer by username_2 on 2017-02-09. Score: 6
  
  The speed regulator light being on is a good start. It looks like you have things set up correctly as far as I can tell.
  
  The first step is to identify which part is having issues. All of these parts can be purchased on Bricklink, so once you know what has failed, you can replace the defective part.
  
  Here are some ideas for testing components:
  
  * If you have a 9V light brick or similar, you can attach it directly to the speed regulator to see if that is delivering power.
  * It's fairly easy to test if power is getting to the track if you have a volt meter handy. You can simply measure the voltage between the tracks when you have the regulator turned all the way up. If this reads around 9 volts, then everything is working except the train motor.
  * You can test the motor by connecting one pole of a 9V battery to one side of the wheels and one side of the battery to the other. You'll need to use a paper clip or something to bridge the gap. If the motor spins, you know that it isn't the issue.
  * You can also directly power the track using a 9V battery. You just need one pole on one rail and one on the other. You can make the connection using a small wire, paper clip, or whatever you have handy.
  
  If any of that doesn't make sense, let me know and I can add more detail and/or pictures. Let us know what works and then we can go from there.
  
  
  ---
  
  ### Answer by username_3 on 2020-04-30. Score: 4
  
  If there is a suspicion that the metal surfaces have developed dust and grime or any other insulating layer, a solution would be to give the tracks a Brasso (or other metal polish) wipe and quick rinse and dry with water. Also give the train motor wheels a wipe of the same polish.
  
  Also check this YouTube video <https://www.youtube.com/watch?v=RCda7voqyUY>
  
  Edit 2: not having Brasso made me try a standard cleaning wet-wipe and after a few wipes it felt smoother (less sticky/rubbing) and guess what? One motor runs perfectly fine, the other stops after a few seconds, I've opened that one up and cleaned the insides (grease got dusty and hard) and it now runs fine without any grease and sounds way better!
  
  > **Comments:**
  > **username_4**: Hi Tom and welcome to Bricks.SE! I took the liberty to add a clause about the specific problem this method solves, just to avoid anyone trying this unnecessarily (like when all involved metal surfaces are squeaky clean). If you don't like this edit, feel free to update, extend, amend or rollback.  
  > **username_5**: It doesn't even look like there is rust on his tracks.  
  > **username_3**: @mindstormsboi it doesn't seem like rust build up, which would be rather unlikely since it's either stainless steel or a nickel/zinc alloy but there very well could be a layer of build up dust and grime not neccesarily visible with the naked eye but very well eletrically insulating  
  > **username_3**: @zovits thanks for the edit, but it's _very_ unlikely for rust to occur it's more likely dust & grime  
  
  ---
  
  