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Offline obb_taurus  
#1 Posted : 12 January 2020 19:41:32(UTC)

Joined: 09/05/2006(UTC)
Posts: 56
Location: ,
I've been having many issues with locomotives getting stuck around my layout but I've traced that back to the new style pickup shoe, I had to bend it more straight cause only a small portion was making contact with the track. One issue I haven't been able to solve is many locations get stuck around my layout where I have C contact tracks (24995). It appears to happen when practically any locomotive approaches the middle of the track so I'm wondering if I have some defective contact tracks as this does not happen everywhere or is this a normal issue with these tracks.

Also, when putting the 2 tracks together, are the rail splits supposed to be on the same side or opposite sides, saw an image on Amazon.com where they are on opposite sides so I'm wondering if it makes a difference?

Offline Crazy Harry  
#2 Posted : 12 January 2020 20:15:39(UTC)
Crazy Harry

Joined: 18/11/2008(UTC)
Posts: 338
Location: Oakville, Ontario
The rail splits, the sides with the raised indicator, have to be on the same side for the contact area to be isolated properly. Here is the manual for those tracks for reference, note the pictogram on page 2:

0a3da96b1c15614d4d6d58afdad7c3b01512382695.pdf (810kb) downloaded 30 time(s).

That answers your second question.

I can only guess why your locos are getting stuck in the isolated areas; it may be insufficient grounding since the one rail is isolated from ground.

Hope this helps,

Offline TEEWolf  
#3 Posted : 12 January 2020 21:11:49(UTC)

Joined: 01/06/2016(UTC)
Posts: 2,140
Does all your locos and coaches have non isolated wheelsets? Using contact tracks for Maerklin AC you need for your complete rolling stock these non isolated wheelsets. For straight circuit tracks and Reed contacts it is not necessary.

The wheelsets for DC are all isolated. Using these wheelsets on AC Maerklin contact tracks, your train will stuck.
CS 3 is a controlling station from Märklin - not a central station.
Offline obb_taurus  
#4 Posted : 12 January 2020 23:58:28(UTC)

Joined: 09/05/2006(UTC)
Posts: 56
Location: ,
I've never changed any of my wheelsets, but if that was the issue it would happen at all contact tracks, while it is only happening at a few.
Offline mike c  
#5 Posted : 13 January 2020 01:21:58(UTC)
mike c

Joined: 28/11/2007(UTC)
Posts: 6,455
Location: Montreal, QC
Back in the day, the metal bodies of locomotives and cars conducted the return (ground), which meant that, in addition to the wheels of the locomotive, the ground was carried to the cars/coaches via the metal couplings, bodies and bogies/wheels. Today, modern cars/coaches have plastic bodies/chassis and the couplers are insulated from the body by plastic coupling socket. This means that much more than previously, models must rely on contact between the wheels and rails for operation.

This becomes problematic when using contact tracks, where one section of rail is sectioned off from the ground and uses the passage of the uninsulated wheels to complete the circuit and trip the solenoid accessory. As the model is only having contact on one side at that moment, it may fail if there is not good contact. It may not be the track, but rather the ground contact between the model and the wheel that is causing the poor contact.


Mike C
thanks 2 users liked this useful post by mike c
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