Bachmann decoders defiantly were NOT silent. With the removal of theirs and an addition of an NCE D13SRJ Decoder, made a world of difference. I know that Bachmann uses some good motors, as I have others that run very well. These engines (I think) are from the 2005 area and their decoder really sucked.

As I stated earlier, the problem has been resolved. Currently they are running like the Bachmann that I have come to know. Not what these were.

Couldn't have asked for a better explanation. Thanks
JT

Okay, here I am again with a noisey loco. I'm assuming it is caused by the decoder. Also while it is running it will come to a stop and then start up again. Never the same place always different. I want to take it apart, but I'm a little heavy handed and I don't want to break anything, but can't figure out how to take it apart. It shows one screw at the rear under the cab, but no other screw looks like it holds the body on the frame. Anybody have any idea how to take this thing apart without breaking it?
Thanks, JT

Quote from: Reinhard S on July 16, 2015, 08:27:24 PM
Hi JT.

The fault is not in the drive system or the motor.  The motors found in Bachmann units sold over the past years are of very good quality and, when properly cared for, will last a long tome.  The fault is in the DCC decoder which is of the first generation.  These decoders produce a buzzing sound especially at low speeds.  Changing the decoder to one which has the latest DCC technology will yield a smooth running locomotive with a significant reduction in noise.

All the best.

Reinhard

Putting an end to this thread. By following Reinhards advise did the trick, which was my next move, as opposed to a new motor, and that did the trick. Appreciate the help and solution to this problem.

Thanks

Quote from: richardl on July 16, 2015, 11:26:37 PM

Quote from: CREngineer on July 16, 2015, 10:28:17 PM

That is all part of model railroading. Happens sometimes with other brands of locomotives.

Rich

Don't get me wrong, I think Bachmann has some great loco's and I'll defend that. I have many, but I have three that aren't so great It's no different then if you would buy a pair of shoes that don't fit or a car and the air bag or what ever don't work right and they have a recall. At least they recall them because it's not working as it should and it's their problem. Maybe it don't bother some people to have to lay out more money to make it right, but it does me. But because Bachmann won't make it right, it's up to me and I will continue to pursue the problem till it's right. It remains a problem that they never addressed and should have. It's my opinion and I'm sticking to it. Just sayin.

Thanks for the replies. The decoder has crossed my mind. And in response to 487, I have went through the drive train and found it not at fault. Lube is good. I do agree with you on the quality of the Bachmann motor, it has gotten better.But what is frustrating is that I have an older non DCC that I converted to DCC and it is a perfect running motor with no noise. So my next step it to switch out the decoder and see what the results are. Hopefully this will solve the issue. It's to bad that Bachmann don't offer to correct the problem when reported to them. But there are decoder out there that are good or better. It just sucks that I have to spend more money on their engines to make them better.
JT

As it says in the title. These motors make a buzzing noise from start through different speeds. These are what I think are the first DCC engines they produced. I thought about buying new motors and replacing them, but at present I'm attempting to correct the problem without replacing the motors. Anybody else have this issue and has anybody found a fix for it? Also on one motor I removed the capacitors and resisters, which made no difference whatsoever. This noise takes away from the enjoyment I usually enjoy with Bachmann engines. The engines are Conrail's 2273 & 2269 & a GP-40 3079.
Thanks. JT

Quote from: Joe Satnik on December 22, 2014, 09:24:36 AM
CREngineer, 

My basic knowledge:

Normal AC Volt meters are usually designed with only 50 or 60 Hz sine wave (house power) in mind.

You need an oscilloscope or a special DCC Volt meter to accurately measure a DCC (higher frequency square-wave) waveform.

Does your loco run well on DC without the decoder (bypass jumper installed)?

Joe 

Thanks Joe and to answer your question, it does run well in DC mode. I installed a DZ126T, because I was told it would fit, which it did and told by support people that it will take 19 to 20 volts, which it apparently don't. It operates for approximately 10-15 sec and the motor starts jerking and then quits. So my whole thing is, is the controller (EZ-Command) putting out to much voltage at 18.5 on one and 19.4 on the other, for the decoder to handle? Both controllers are new, so I never give it a thought about to much Voltage/Amperage.

I have the EZ_Command controller, actually have two. My question is what voltage and amperage these are supposed to put out? One output is 18.5 and the other is 19.4 volts. Isn't this is bit high for decoders to handle? The reason for that statement is I've burnt up two right after installing them. And yes they were done correct, as I have installed many prior to this one. Won't mention the brand as I don't think that matters, as much as the voltage/amps output of the controller. It may be the locomotive drawing to much amps, but I tend to not figure that, as I have other Loco's with the same motor and they run great. I'm looking to upgrade my controller and thinking about the Dynamis. But that's for another post later.
Thanks