Jump to content
JNS Forum

GiantRoboJustin

Members
  • Content count

    21
  • Joined

  • Last visited

Everything posted by GiantRoboJustin

  1. I think the brand new replacement motor for my DF200 might be bad already... I purchased it because the locomotive was jerking and stalling randomly on clean track that all my other locomotives were having no trouble at all on, and I had ruled out all other possible causes (dirty wheels/contacts, mechanical binding, etc…) Anyways, I ordered the motor from Hobbysearch, and after installation, the locomotive ran like new…for about 2 minutes, then it picked up the same problems where the old motor had left them off…and then proceeded to make them worse. So, thinking I had just put a new motor in for no reason, I checked and double checked everything else again: Trucks had no binding (in fact, they’re probably the smoothest rolling ones I’ve ever seen. I should also note I replaced the axles that had traction tires with new tire-less ones for better electrical pickup. I have no need for them because I don’t pull long trains, or have any gradients on my small layout) Worm gears and drive shafts seem to be in perfect shape as well. Then I got an idea from another problem. A few days before, I was running my Tomix EF66 and noticed it was stalling for a split second whenever it went over my single crossover. So I ran it over very slow, and it stalled completely. Not only that, but the tail lights on the last car wouldn’t light up either. What was happening, was this: http://my-miniature-worlds.blogspot.com/2015/04/kato-turnout-4-short-circuit.html So basically the wheel contacting the two rails at once was shorting out the whole track, causing even the rear lights to stay out. This got me thinking, if something in the DF200 is shorting out, then other things on the track will stall or dim as well. So, to check for this, I removed the motor, driveshafts, and worm gears so the unit would be a free rolling dummy with working headlights, hitched it up to one of my DE10’s, and towed it around every inch of my layout multiple times to see if the lights would flicker or dim. And they flickerlessly burned bright over every millimeter of it, even over the #4 crossovers, so no problems there. Then, I put the motor back into it, but not the driveshafts or worm gears, so it was still a free rolling dummy, and then pulled it around the layout with the same DE10. But this time, there was a problem. Not only did the DF200’s motor hesitate and stall, but when it did, the DE10’s would as well, just as the tail lights did with my EF66 on the crossover. So it would seem that something in the motor is shorting out. So, I got a bad motor, right? Has this happened to anyone else? I mean, I know it sounds improbable that the new part would be bad as well, but then again, the last time I tried to replace the alternator in my car, I had to buy 3 or 4 before I got a proper working one. Is there something in these motors that can internally short out? I found a motor on plazajapan for $13, but wanted to get some second opinions before ordering…again, lol. So any ideas or advise would be helpful, thanks!
  2. GiantRoboJustin

    Brand new Tomix DF200 motor (0624) problem?

    Pulled the motor out today. Couldn't find any measurable anomalies turning it by hand except for one point where it did bind up when switching direction, So I hooked the motor itself to the controller and it ran like crap. Not at first, but it seems like the warmer it got, the more it would hesitate and sputter. The weird bit is that sometimes it would run at a low but steady speed no matter how much I crank up or turn down the throttle. Then after about 10 seconds or so, it would suddenly speed up as if it had broken free of something. But then a few seconds later be back down into the low speed again. So at this point, I'm pretty sure the motor is the most likely culprit. Can't get a new one for a while though cause I'm moving soon and don't want anything coming in the post until that's all done. But when I do, hopefully I'll have better luck with ebay than I do the auto parts store, lol
  3. GiantRoboJustin

    Brand new Tomix DF200 motor (0624) problem?

    Thanks, I'll give that a go! I suppose if a flywheel manages to touch both halves of the frame at the same time that could short it out as well, I'll double check the clearance on that too and make sure the motor mount is fitting properly.
  4. GiantRoboJustin

    Kato 10-1247 noisy run at speed

    My thoughts as well, though maybe there are some higher quality rubber bands out there. Or perhaps a drive belt for a CD drive or other small electric motor applications that are more purpose built for long term durability... Speaking of DE10's, I have three (well, more like two and a half since I turned my oldest one into a dummy for reasons I should probably make a new thread for, lol), and I've noticed gear noise from them too. The loudest (but still not too bad) being a new-ish Kato, but I also have a brand new 2018 Tomix one that is making a ticking noise around turns sometimes because something is causing the gears to bind up in the 3 axle bogie. Not enough to make it stop, but enough to get annoying because I sometimes have to poke it to get it going from a stand still, especially when switching direction. I just ordered a new bogie for it though, so hopefully that'll help. Either way I wanted it for swapping out the traction tires. I've noticed Tomix locomotives run much smoother without them, especially over turnouts.
  5. GiantRoboJustin

    Kato 10-1247 noisy run at speed

    Well I took a look at it today and found no space in the motor mount in which to fit a shim. However, I did find that the body wasn't clipping on to the frame quite all the way on one side. It was only off by a fraction of a millimeter, but once I got it to fit, the noise was all gone. I haven't let my guard down just yet though. Things I fix sometimes have a way of pretending to be fixed until they find the perfect moment to reveal the problem to still be there. But I've run it around a few laps both directions, and all seems to be well.
  6. GiantRoboJustin

    Kato 10-1247 noisy run at speed

    I know it's been a while since the last post on this thread, but I've got a rather noisy Hankyu 9300 that I think I'll try that motor mount shim trick on. It was quiet out of the box...for about 30 seconds, then the growling started and got louder since. I'm pretty sure it's motor vibration too, cause it runs much quieter with the body shell and motor cover removed. I also tried Kato Uni-Clean oil on the gears like it says in the instructions, but that didn't seem do any good. Aside from the sound it sure runs good though. It's even annoyingly better at slow speed crawling than any of my DE10's, if only I could use it for switching, lol Here's a video of it I posted on Youtube:
  7. GiantRoboJustin

    The Introduction Thread...

    Thanks for the welcome everyone! I'll try to post some bits from my adventures soon. As far as getting into model RRing, indeed I have! I started back into it when I found my old train stuff while helping my parents organize their basement last summer, and have been amazed at the advancements that have come along since the 90's. Currently I have a small (though probably large by Japanese standards) Unitrack layout around a television in my room, It's nothing terribly fancy, but I'll try to post some pics of it soon too.
  8. GiantRoboJustin

    The Introduction Thread...

    Hi everyone! I'm from (and still reside in) Kansas, but have stayed in Japan for a summer years back. I've never traveled by rail in the states, but spent quite a lot of time on trains in Japan, including a night train (though I don't quite remember which one, or if it's still even in service since this was back in 2010) I remember one of my favorite things to see when traveling the countryside by rail (aside from the beautiful country side itself) was all the different types of freight equipment in yards and sidings along the route. I had never really noticed Japanese freight trains before, probably because they are so often overshadowed by shinkansens and other high tech passenger trains and trams. It was really cool to see how different they were from the trains I was used to seeing here in the states. In hindsight I should've made a point to visit some railway museums there, but I was too distracted by the automotive ones, lol. I did get to see a pretty cool steam engine on display next to a park near my friend's apartment though. Anyways, I've been a visitor to this forum many times since I got back into the hobby last spring, and have found it to be quite a helpful resource, so I reckoned I should join. Looking forward to asking many questions, as well as sharing my experiences in hopes of answering ones other people might have as well! -Justin
×