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Discussion Starter · #1 ·
Hi,

I have 2 reversing loops in my new layout that I am having some derailment issues with (even at very slow speed). What are the best practices for laying track?

1. Can I get away with a slight gradient (1%) on a 7' diameter curve running a K-27 (which they recommend 8' diameter minimum)?

2. Do you think I would have less derailments if I banked the curves slightly so they were leaning in?

3. How level does track really need to be (not gradient)?

Best regards,
Ted
 

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Discussion Starter · #6 ·
RE: Track: Derailment issues & how level does it need to be

Hi Guys,

I really appreciate your help. I spent several hours today watching the train go through trouble spots, then correcting them one by one. The Bachmann k27 is now working very well on my layout. I don't know the actual diameter of the curves I have, becuase I am using flextrack, but my smallest is roughly 7 1/2 feet. It's a tight fit, but is working now without issues and I have run the train over it about 30 times without incident.

This is my first g-scale layout and I am really learning as I go. my issues today included:

1. Having to file/dremel the ends of track smooth where i had cut them with an angle grinder. Then I joined them with a splitjaw clamp. Before doing this, I had small burrs that were causing issues. I learned the any curve is very sensitive to a joining track.

2. Having to side to side level track in and leading into a curve.

3. having to regrad some of my layout to smooth out a curve and keep it level in all directions.

4. re-oiling the k-27 very slowly and making sure to get all moving parts.


At a later date, i will send some pics of my layout. I built a waterfall that is about 7' tall, 6 feet wide in each direction and have a curved tunnel that the train goes through (roughly 10' diameter curve). I was so relieved when the train went through it the first time becuase there is so much stone (20k pounds in the entire waterfall) on top of the tunnel. Now that everything is working, I look forward to building structures and tweaking the layout. I would appreciate it if you could give me some more advice on the following topics.

A. In some cases, I have small gaps (~
 

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Discussion Starter · #11 ·
RE: Track: Derailment issues & how level does it need to be

Hi Jim,

I was told when I purchased it that it was the "new" batch from Bachmann with the updated counterwieghts. Any way I can double check this by looking?

Also, just gave myself another issue. Last night I was running the train while cutting my lawn and left it for a few minutes. Sure enough, at one of the switches, the locomotive went one way and the tender went on the other track causing a derailment. The locomotive was sitting perferctly on the track while the tender was across two sets of track laying at a 30 degree angle. I replaced them on the track and it the train wouldn't move. I then replaced them right next to my track power and it would intermintantly get power. I could tell by the lights going on then off. It would only move very slowly and jumpy, stopping more than moving. I took it off the track, examined it, turned the wheels and everything looked fine. Then I checked the electrical wiring in the tender. Looked fine also. I put some conductive lubricant in a few spots, then replaced it on the track. This time it went further without stopping. However, then it stopped and the intermittent on/off is happening again. What do you think I should do? Thanks for your help. - Ted
 

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Discussion Starter · #15 ·
RE: Track: Derailment issues & how level does it need to be

Thanks Guys, I really appreciate your help. Sure enough, the counterwieghts are loose so I have contacted Bachmann for the replacement. Hopefully this solves my issue. I will let you know.

Regarding the derailment that took place at the Aristo #6 switch, I have noticed that when the train goes through the switch the actual plastic switch arm moves a little bit, perhaps becuase I don't have this attached to a motorized switch machine. Do you think that movement may have caused the derailment and if so would you recommend that I tape the little plastic arm in place so the track in the switch doesn't move.

Thanks for your advice
-Ted
 
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