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Slider Issue - New Model - Märklin 39463
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Offline Eddie7979  
#1 Posted : 08 July 2024 02:25:20(UTC)
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Eddie7979

Australia   
Joined: 01/07/2022(UTC)
Posts: 139
Location: Western Australia, Bassendean
Hi everyone,

Last night I set up my new Re 460 (Märklin no 39463) and preparing to do a run in, as it started going I heard this loud squeal that just wouldn’t go away.

My first thought, maybe it needs oil so put a tiny amount to the gears on the trucks without the slider to see what happens. Back on the tracks, squeal again!

So I remove it from the tracks and check the slider, I did a minor adjustment (even though it looks straight) then back on the tracks, the squeak stops. When going forwards, it seems to work well.

Then the test backwards, it sounds like the slider is catching on something as you can hear it bouncing off the centre studs. Since it was getting late and I was frustrated, I decided to leave it and try it again after work today.

I have some spare sliders and think I will just replace it but wanted to see if anyone else here had the same experience?

The other new locomotives I’ve bought in the last year have worked without any issues so this was a bit weird.

Regards,

Eddie
Eddie
Perth 🇦🇺
Marklin | Roco | Piko
CS3+ & iTrain
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Offline marklinist5999  
#2 Posted : 08 July 2024 14:20:30(UTC)
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marklinist5999

United States   
Joined: 10/02/2021(UTC)
Posts: 3,868
Location: Michigan, Troy
Check the azimuth angle of the slider looking from the end. If it is crooked, it might catch the edge on the studs. The end is rounded, so I don't see how it can cactch the studs from the front. It would need to be realy bent downward. Are you sure it isn't the coupler catching?
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Offline Eddie7979  
#3 Posted : 08 July 2024 14:45:22(UTC)
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Eddie7979

Australia   
Joined: 01/07/2022(UTC)
Posts: 139
Location: Western Australia, Bassendean
Originally Posted by: marklinist5999 Go to Quoted Post
Check the azimuth angle of the slider looking from the end. If it is crooked, it might catch the edge on the studs. The end is rounded, so I don't see how it can cactch the studs from the front. It would need to be realy bent downward. Are you sure it isn't the coupler catching?


Hi,

So the taping noise was very faint, I double checked to see if anything else was catching on the studs and couldn’t find anything.

I ended up replacing the slider, this one is bit noisy as well so maybe it needs to be adjusted. I thought I would do a good run in before I do anything else.

Funny thing is, I have 4 other new locomotives over the last 1/2 years and they don’t make as much noise. It’s hard to describe the noice, perhaps more a metallic sound and the noise of going up and down (over turnouts).

I’m just hoping it needs to run and eventually it will go more quiet.
Eddie
Perth 🇦🇺
Marklin | Roco | Piko
CS3+ & iTrain
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Offline Bill L  
#4 Posted : 08 July 2024 18:22:31(UTC)
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Bill L

United States   
Joined: 08/12/2021(UTC)
Posts: 140
Location: California, Sonoma County
Choose the lok that you have that does not make that much noise and switch the pickup shoe with this one. If the noise continues to be produced, then it could be the cardan shaft gear system with the centrally mounted motor.
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Offline mike c  
#5 Posted : 08 July 2024 20:13:57(UTC)
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mike c

Canada   
Joined: 28/11/2007(UTC)
Posts: 8,218
Location: Montreal, QC
It used to be simple that you could simply unscrew the slider and mount it in the other direction to see whether this solved the issue.
It is possible that the slider was damaged when the model was set into it's cradle, either at the shop or at some other point.
I have had a few items where this type of damage was the result of the model being "inspected" by customs and then improperly repackaged.

To eliminate any possibility that the problem is not the slider, you can connect two wires to a 9V battery and touch one to the slider and the other to a wheel and see if the noise is coming from the drive.
If there is no abnormal noise, the issue is probably with the slider. If you can reverse the slider direction, you can try that to see how it affects the operation/noise.

Check the slider to make sure that it is even and not pushing down more on one side
Make sure that the slider is sitting straight and that it is not more to one side over the axles
Also check to make sure the axles are properly lubricated (squeal).

I have a few Roco, Piko and other models that make a clicking noise when the slider goes over the studs. I would not describe that as a squeal.

If you can, post a quick video of the noise.

Regards

Mike C
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Offline Eddie7979  
#6 Posted : 09 July 2024 02:22:46(UTC)
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Eddie7979

Australia   
Joined: 01/07/2022(UTC)
Posts: 139
Location: Western Australia, Bassendean
Originally Posted by: mike c Go to Quoted Post
It used to be simple that you could simply unscrew the slider and mount it in the other direction to see whether this solved the issue.
It is possible that the slider was damaged when the model was set into it's cradle, either at the shop or at some other point.
I have had a few items where this type of damage was the result of the model being "inspected" by customs and then improperly repackaged.

To eliminate any possibility that the problem is not the slider, you can connect two wires to a 9V battery and touch one to the slider and the other to a wheel and see if the noise is coming from the drive.
If there is no abnormal noise, the issue is probably with the slider. If you can reverse the slider direction, you can try that to see how it affects the operation/noise.

Check the slider to make sure that it is even and not pushing down more on one side
Make sure that the slider is sitting straight and that it is not more to one side over the axles
Also check to make sure the axles are properly lubricated (squeal).

I have a few Roco, Piko and other models that make a clicking noise when the slider goes over the studs. I would not describe that as a squeal.

If you can, post a quick video of the noise.

Regards

Mike C



Hi Mike,

Thanks for commenting.

I wish Marklin had stayed with the screw on slider, have a real dislike to plastic clip and have a habit of braking them. Being the first time dealing with the newer types of sliders, I used a wooden stick with a flat head edge (used for manicuring) and that seemed to get it off without causing any damage.

About the squeal, that only happened when the look came out of the packaging for the first time. Naturally, I thought it needed oiling so placed a tiny amount on the gears on the truck that didn’t have the slider attached. The squeal persisted until I took it off and rubbed the slider, placed it back on and it went away.

When going forwards, it seems ok but backwards I felt that was rubbing against the studs.

Out of frustration, I just replaced the slider with a new one. I gave the look a good run in yesterday, about 20 mins or so each way. I was able to replicate the sound by getting the old slider and rubbing it against the studs, it’s the metal on metal sound. I’m starting to think that maybe it’s all in my head and that it’s normal.

I also tried to check the position of the slider and make sure it is straight and well aligned. While it’s easy when the lok is off the track, it’s not easy with the Re 460 when on the track.

I’m fairly certain that the mechanism is fine, it runs really well and smooth. I’m also thinking that the track I ran it on were all R1 curves so I think I need to see how it goes on other parts of my layout where I have R2, R3 and R4.

After that, I will reverse the slider and see what effect that does. I guess I wanted to ask what whether anyone else experienced the same thing.
Eddie
Perth 🇦🇺
Marklin | Roco | Piko
CS3+ & iTrain
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Offline mike c  
#7 Posted : 09 July 2024 04:26:05(UTC)
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mike c

Canada   
Joined: 28/11/2007(UTC)
Posts: 8,218
Location: Montreal, QC
One thought. The latest Re 460 have the central motor which is much quieter than the older motors that were used. This makes it much easier to hear things that were previously hidden by the motor noise.

Regards

Mike C
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