Fixing Faulty/Stuck/Dead Digital Turnout with Installed Märklin 74490-1 Turnout Mechan (Tutorial 03)

Опубликовано: 05 Июнь 2026
на канале: Model Train Fun
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If you are having trouble with a faulty, stuck or dead turnout, then it might be the decoder - or it might be the turnout mechanism. This video shows a fix to the Märklin 74490 or 74491 turnout mechanisms that might solve your issue. Be careful you might damage your equipment and it may become in operable.

WARNING: The fix makes the turnout mechanism usable ONLY in digital operations. If you are using analogue do not use this fix.

WARNING: Follow any safety instructions and be careful you might damage your equipment and it may become in operable.

Tips & How to included:
• Fixing the Märklin 74490/74491 turnout mechanism
• If you think it’s the decoder that was faulty - perhaps it really was the Turnout mechanism.

Enjoy and have fun with model trains :-)

Interesting links (English):
Märklin 74490: https://www.maerklin.de/en/products/d...
Märklin 74491: https://www.maerklin.de/en/products/d...
Instructions in Märklin Digital club NEWSLETTER Vol. 31 – No. 1 January – February 2019 (join on https://www.marklin.com/clubs/digital...)
Instructions from internet: http://members.ozemail.com.au/~rossst...
Instructions from internet: https://regulusastro.com/2019/05/02/m...
Discussion on marklin-users.net community: https://www.marklin-users.net/forum/p...

Music
Guitar House by josh pan
   / @yoshibolin  

Chapters
00:00 Intro & turnout symptoms
04:06 The issue and how the fix works
08:07 The fix (do at your own risk)
08:46 Opening the turnout mechanism
12:00 Using a wire
15:38 Just a blob
16:22 Inspect the result
16:54 Re-assembly
17:52 Attach turnout mechanism and test
19:27 Potential mechanical issue
20:14 Mark as "Digital only"
21:08 Was my decoder really dead?