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Offline ASz  
#1 Posted : 28 July 2021 20:36:04(UTC)
ASz

United Kingdom   
Joined: 25/03/2014(UTC)
Posts: 10
Location: London. UK
I have recently acquired the beautiful CSD Skoda Type 109 E locomotive (AC). While testing it on my layout it consistently derails on one of my 5140-R turnouts when going to the right. All my older analogue Märklin locomotives take the turn without a problem. Any suggestions for a fix?
Offline kiwiAlan  
#2 Posted : 28 July 2021 21:31:05(UTC)
kiwiAlan

United Kingdom   
Joined: 23/07/2014(UTC)
Posts: 6,279
Location: ENGLAND, Didcot
Originally Posted by: ASz Go to Quoted Post
I have recently acquired the beautiful CSD Skoda Type 109 E locomotive (AC). While testing it on my layout it consistently derails on one of my 5140-R turnouts when going to the right. All my older analogue Märklin locomotives take the turn without a problem. Any suggestions for a fix?


Step one will be to make sure the bogie is free to turn far enough to take the turn. Also do a test turning the loco end for end to see if it still does it running the same route but with the loco running other end first.

thanks 1 user liked this useful post by kiwiAlan
Offline Ian M  
#3 Posted : 28 July 2021 22:43:06(UTC)
Ian M

United Kingdom   
Joined: 27/01/2018(UTC)
Posts: 220
Location: England, Shrewsbury
Modern stock often has finer wheel profiles which can come to grief on some of the older M track points.

Cut a small strip of black electrical insulation tape and put it on the inside of the check rail - two thicknesses may be required.
Offline dickinsonj  
#4 Posted : 29 July 2021 01:12:52(UTC)
dickinsonj

United States   
Joined: 05/12/2008(UTC)
Posts: 1,444
Location: United States
Originally Posted by: Ian M Go to Quoted Post
Modern stock often has finer wheel profiles which can come to grief on some of the older M track points.


Some of mine have problems on C track points as well, with the three-ways being the worst offenders.

Maybe turnout running issues are a Märklin tradition? BigGrin

Regards,
Jim

I have almost all Märklin and mostly HO, although I do have a small number of Z gauge trains!
I have models from Era I to Era VI, but I try to focus on Eras I & III. Whoops, that one got away from me. Let's just say I focus on cool trains, regardless of the particulars :-)
So many trains and so little time.
Offline JohnjeanB  
#5 Posted : 29 July 2021 12:32:58(UTC)
JohnjeanB

France   
Joined: 04/02/2011(UTC)
Posts: 1,731
Location: Paris, France
Originally Posted by: ASz Go to Quoted Post
I have recently acquired the beautiful CSD Skoda Type 109 E locomotive (AC). While testing it on my layout it consistently derails on one of my 5140-R turnouts when going to the right. All my older analogue Märklin locomotives take the turn without a problem. Any suggestions for a fix?

There may be possible problems:
- the switch has a large size lantern (pre-1970 time) wich are in the way of long vehicles
- the protecting rails (preventing wheels to jump over a frog) are not set properly. By these switches, these rails are made of a simple cut iron plate and attachment to the rail base is by a twisted tongue. It is easy to set it to the proper distance and fix it by twisting the tongues
- the mobile piece to set the direction (points) is not going fully home because of rust or bent edges
Cheers
Jean

My layout videos
latest vid
hump yard
thanks 1 user liked this useful post by JohnjeanB
Offline ASz  
#6 Posted : 31 July 2021 00:03:00(UTC)
ASz

United Kingdom   
Joined: 25/03/2014(UTC)
Posts: 10
Location: London. UK
Thanks everyone for the tips. Before acting on some of the ideas I ran another test with three carriages attached to the loco and it did not derail in the usual place. Some further testing is necessary.
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