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Offline davidtfrs  
#1 Posted : 31 August 2016 19:20:40(UTC)
davidtfrs

Sweden   
Joined: 19/08/2016(UTC)
Posts: 4
Location: Stockholms Lan, Stockholm
Hi!

I have two old Märklin 3000 (DB 89 006) analog.
The newer of the two started to go slower a month back or so, now it doesn't run at all without giving it a push.

I've opened it up and cleaned it out with a cotton swab and put some new oil on the oiling spots, that didn't help.
So I talked to my local dealer and got a pair of new motor brushes (E601460), didn't help either.

I can see that small sparks appear inside by the brushes if I run it with the loco body off, also the brushes looks a bit burned.

Could it be the 3 pole anchor that is broken? I cant really tell from looking at it. Attaching images.

IMG_8152.JPG
IMG_8154.JPG
IMG_8156.JPG
Offline Hoffmann  
#2 Posted : 31 August 2016 19:55:04(UTC)
Hoffmann

Canada   
Joined: 25/11/2004(UTC)
Posts: 1,106
Location: Guelph, Ontario

Hi

One Segment of your Rotor ( anker ) is broken. You are running on 2 Zylinders instead of 3. You need a new Rotor ( anker ).

Martin
marklin-eh
Offline davidtfrs  
#3 Posted : 31 August 2016 19:59:49(UTC)
davidtfrs

Sweden   
Joined: 19/08/2016(UTC)
Posts: 4
Location: Stockholms Lan, Stockholm
Thank you Martin for your reply!

Could you tell that from the picture or is it a typical behaviour?
I'll order a new anchor in that case.

Thanks again!
Offline Hoffmann  
#4 Posted : 31 August 2016 20:13:33(UTC)
Hoffmann

Canada   
Joined: 25/11/2004(UTC)
Posts: 1,106
Location: Guelph, Ontario


Hi


Looking at your Picture of the Rotor it seems that a Wire is broken on the top segment ( I could be wrong ).

Regards Martin
marklin-eh
Offline RayF  
#5 Posted : 31 August 2016 20:43:25(UTC)
RayF

Gibraltar   
Joined: 14/03/2005(UTC)
Posts: 15,838
Location: Gibraltar, Europe
Originally Posted by: Hoffmann Go to Quoted Post


Hi


Looking at your Picture of the Rotor it seems that a Wire is broken on the top segment ( I could be wrong ).

Regards Martin


I thought so too!
Ray
Mostly Marklin.Selection of different eras and European railways
Small C track layout, control by MS2, 100+ trains but run 4-5 at a time.
Offline Dave Banks  
#6 Posted : 31 August 2016 21:10:48(UTC)
Dave Banks

Australia   
Joined: 08/03/2006(UTC)
Posts: 1,025
Location: Gold Coast, Australia.
Hi, I concur, new armature required. Old one looks well worn & seems to have a broken wire. #231440

Dave...

http://www.ebay.de/itm/Marklin-...%3D6%26sd%3D131854227947
D.A.Banks
Offline jvuye  
#7 Posted : 31 August 2016 21:13:06(UTC)
jvuye

Belgium   
Joined: 01/03/2008(UTC)
Posts: 2,881
Location: South Western France
Originally Posted by: Hoffmann Go to Quoted Post

Hi

One Segment of your Rotor ( anker ) is broken. You are running on 2 Zylinders instead of 3. You need a new Rotor ( anker ).

Martin

Absolutely correct.
I have hundreds of these in my spares inventory.
If you want to I can send a couple, just for mailing cost.
Good call!
Jacques Vuye aka Dr.Eisenbahn
Once a vandal, learned to be better and had great success!
Offline river6109  
#8 Posted : 01 September 2016 05:05:25(UTC)
river6109

Australia   
Joined: 22/01/2009(UTC)
Posts: 14,636
Location: On 1965 Märklin Boulevard just around from Roco Square
on the other hand if you can unwind the broken wire without breaking it again you could solder it to the missing spot and you could save yourself some money but as Jacques said he has got plenty (so do I)

John
https://www.youtube.com/river6109
https://www.youtube.com/6109river
5 years in Destruction mode
50 years in Repairing mode
Offline Moritz-BR365  
#9 Posted : 01 September 2016 07:42:23(UTC)
Moritz-BR365

Germany   
Joined: 02/04/2013(UTC)
Posts: 682
I can't see, that there is a broke wire. But, if the loco starts to become slower and slower, this is in most cases because of abrasion from the brushes filled into the collector gaps.

I use a small needle to take the abrasion away and clean the collector carefully. The brushes should be cleaned as well. The same for the motor shield.

Be very spare with oil on the motor shield!!! When the oil reaches the collector and brushes, the gaps will fill again within a few hours of driving! Better then oil is, to mount a ball bearing into the motor shield. Then You will never have to use oil for the anchor!

UserPostedImage

Regards,
Moritz
Offline river6109  
#10 Posted : 01 September 2016 11:40:32(UTC)
river6109

Australia   
Joined: 22/01/2009(UTC)
Posts: 14,636
Location: On 1965 Märklin Boulevard just around from Roco Square
Moritz, for absolute better performance have a close look at your motor shield and tell me if you find any abnormalities. a.) always check the spring tension (in right position, b.) when drilling a hole for the ball bearing always make sure its in the centre and c.) only use one diode (between the spring tensions = as per above picture) for the loco (when using ESU decoders., d.) most modelers don't realize the brushes are most the time not in a 90° angle and this either makes the loco more noisy and slower and therefore can also hinder the loco to perform properly at slow speed.

John
https://www.youtube.com/river6109
https://www.youtube.com/6109river
5 years in Destruction mode
50 years in Repairing mode
Offline davidtfrs  
#11 Posted : 01 September 2016 19:03:41(UTC)
davidtfrs

Sweden   
Joined: 19/08/2016(UTC)
Posts: 4
Location: Stockholms Lan, Stockholm
Originally Posted by: jvuye Go to Quoted Post
Originally Posted by: Hoffmann Go to Quoted Post

Hi

One Segment of your Rotor ( anker ) is broken. You are running on 2 Zylinders instead of 3. You need a new Rotor ( anker ).

Martin

Absolutely correct.
I have hundreds of these in my spares inventory.
If you want to I can send a couple, just for mailing cost.
Good call!


You got a spare rotor? That would be great!
Offline davidtfrs  
#12 Posted : 01 September 2016 19:20:47(UTC)
davidtfrs

Sweden   
Joined: 19/08/2016(UTC)
Posts: 4
Location: Stockholms Lan, Stockholm
Originally Posted by: Moritz-BR365 Go to Quoted Post
I can't see, that there is a broke wire. But, if the loco starts to become slower and slower, this is in most cases because of abrasion from the brushes filled into the collector gaps.

I use a small needle to take the abrasion away and clean the collector carefully. The brushes should be cleaned as well. The same for the motor shield.

Be very spare with oil on the motor shield!!! When the oil reaches the collector and brushes, the gaps will fill again within a few hours of driving! Better then oil is, to mount a ball bearing into the motor shield. Then You will never have to use oil for the anchor!

Regards,
Moritz


Thanks for the reply, do you mean the gaps in the surface where the brushes interact with the rotor?
Offline Moritz-BR365  
#13 Posted : 01 September 2016 22:37:29(UTC)
Moritz-BR365

Germany   
Joined: 02/04/2013(UTC)
Posts: 682
Originally Posted by: davidtfrs Go to Quoted Post
Thanks for the reply, do you mean the gaps in the surface where the brushes interact with the rotor?


Yes, exactly! I have a BR 50 which run slower and slower, finally it stops. I cleaned the gaps, removed much abrasion, cleaned the brushes and it was like a new loco!

thanks 1 user liked this useful post by Moritz-BR365
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