Don't know if this means anything, but I have been watching your channel for months! I had a problem with my BN SD40-2, acting like it had a cracked gear, and first, I couldn't see how to split the frame (no screws). Then, was my real problem getting the truck apart? And you solved both and actually the repair that was needed! Now my best and favorite is running smoothly and quietly! So, in short, I wanted to say. THANK YOU!

Great work. Though they run nicely, I can’t say I share your preference for the newer kato mechanism. I like the worm gears in the frame rather than the trucks. The new trucks are too tricky with that worm gear attached. I had the same problem with a crooked truck on an sd40-2 of mine. The problem was those tabs on the worm gear “holder” part. It wouldn’t push down properly in relation to the truck contact strip. It blocked the trick contact from touching the chassis contact strip. Once I readjusted that and properly seated it, the wheels straightened out. Thanks again for these videos. Excellent. 😊👍👍

Great work and full explanation that is easy to follow. Hope I never have to do so much work, but I’m not likely going to avoid it as I continue my N Scale journey...Anthony

Thanks for showing us the "inside story" on this very capable locomotive!

What a great, clear demonstration. Thanks to you, I got the confidence to attempt a repair of my SD70. What makes it particularly easier to understand is your knowledge of all the technical terms for the various components (how is that?). Thanks!

Good show looks to be like the other one, nice to see how it works....thanks for sharing....Jack 😀

I'm having trouble with mine. It runs great in reverse but not In forward It seem to struggle forward

Like your video

Plz send motor voltage and size

Repair Kato N scale SD40-2 🎃 Burlington Northern Santa Fe locomotive. 🇯🇵 Locomotive. I gonna have a Atlas GP15-1 BNSF 🎃 in N scale.