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Offline Kal Suresh  
#1 Posted : 26 March 2024 08:33:11(UTC)
Kal Suresh

India   
Joined: 26/03/2024(UTC)
Posts: 7
Location: Karnataka
I have a Marklin Unimat which I purchased couple of months back and just placed it on tracks couple of days back The set of wheel in the middle the (one without pick up shoues) derails even at at any curve at the beginning or on a turnout on either direction. It is a simple set of hweels as you know and they all look fine without any damage. Any ideas or pearls of wisdom from the group - Kal
Offline JohnjeanB  
#2 Posted : 26 March 2024 10:59:56(UTC)
JohnjeanB

France   
Joined: 04/02/2011(UTC)
Posts: 3,378
Location: Paris, France
Hi Kal
It is customary (no obligation but curtesy) to present yourself and what your project is, where you are from. Just to ease further discussions.
Anyways, a warm welcome to our forum.
Here is what I understand your problem is (in red) on a Gleisstopfmaschine Unimat 39935 from Märklin.
Sans titre.png

I would suggest you verify
- the bogie has enough sideplay to accomodate curves
- it has not inadvertently rotated 180° (half a turn)
- nothing prevents it of being gently pressed against the rail (some vertical play is needed

I hope this helps
Jean
thanks 1 user liked this useful post by JohnjeanB
Offline Kal Suresh  
#3 Posted : 26 March 2024 11:23:06(UTC)
Kal Suresh

India   
Joined: 26/03/2024(UTC)
Posts: 7
Location: Karnataka
Thanks indeed Johnjean B! I am in Bangalore, India doc tor by profession In to model railroading since 1988!!! Most n3 rail Marklin (about 70%) and restr two rail DC. Most of my stocks are pre 1988 from collectibles from 1952 onwards, of course analog. Got in to digital last couple of years and working through it now with CS3+. I have large analog layouyt about 16 x 14 ft. 4 ft above the ground and below a bit smaller digital and now creating routs, automation

I will suggestion when I get hoe in the evening. Thanks again
Cheers
Kal
thanks 2 users liked this useful post by Kal Suresh
Offline Kal Suresh  
#4 Posted : 27 March 2024 09:15:11(UTC)
Kal Suresh

India   
Joined: 26/03/2024(UTC)
Posts: 7
Location: Karnataka
Tried all the suggestion but to no avail. Likely send it back to Marklin for any structuraa/manufacturing problems whcih I have never encountered in 35 years of Marklin collection
Kal
thanks 1 user liked this useful post by Kal Suresh
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