Keeping Atlas CZ on the Rails

I have no issues on atlas O72, nor issues on Lionel O72 tubular. 

I've even tried running them on O72 with Kadees and they work just fine with no lifting or tracking issues. 

You can check that the gauge of the track is correct and also the wheels. 

The other thing you can do is adjust the coupler bar to see if that helps your problem, or at least eliminates the issue that one car may be pulling the one next to it off the track. 

Also, the coupler should swing back and forth a bit, make sure that it is free and able to do that.

I've run these cars in 15+ car trains with GGD and K-line aluminums and not had any issues with them tracking properly.

Thanks for the suggestions, emails, and Bill at the Atlas service department.  An additional issue was discovered with the Atlas CZ cars. Some of the uncoupler lever buttons hang way to low and only have a 1/64 clearance. The steam and air hoses also seem to be too low and catch on switches. The steam hose comes off easy, the brake line not so easy. It actually needs to be bent up.  The whole coupler needed to be raised. I did try to use nail polish to insulate it from  shorting, it wasn't sufficient. I found that several of the couplers had to have the whole adjusting bar removed to tighten the mounting screw that allow rotation along with changing the height adjusting screws to a higher position. Running better. 

Again thanks.

Buzz

Yes I noticed the coupler "thumb tacks" were loose as well.

I had great performance from one car I purchased, the dome car.

However when I purchase 2 more and coupled them together, that's when all #*&$ broke loose.

The adjustable couple works but it will need some tweaking around the layout.

S curves they hate, and any switch less than O 100 seems to create issues.

The other track item is any up/down transition in the rails has to be so slight, or else the bolster of the truck will bind on the floor or skirts of the car....

On my upper deck, I had to make sure the minimum radius was 096.

To be honest 072 radius for these cars is just pushing the limit of your sanity.

I have Ross 072 switches. No Problems. The uncoupler buttons are a problem for me when they droop and short out. Solution cover with electrical tape. The coupler length adjustment is critical. If they are not set correctly derailments will occur. Mine even run on a curve that is slightly smaller than 072.