Hi,
If you have cleaned the locomotive now you need to lubricate it. The motor has two points (in between the brushes) where you need to put one drop of oil. Also one more drop in each gear.
The sound you get is typical from an engine that needs oil. Don´t put too much oil just a couple of drops and put the engine to work again.




You can use Marklin oil or any oil manufactured for model trains.

Kr

Eduardo

OK here is what I got. I put oil in the location pointed out. It was covered by a capacitor in the wiring and I did not see it a first. So for the first 10 minutes all was OK then the chirping sound re-appeared. Let me know what you think.

That's definitely the sound of a dry point somewhere. I have heard it often myself. In my case it was a dry armature bearing. It could be , but be careful not to over oil the brush end of the motor. A bit of oil on the end of a pin could be enough, but you may need to work the motor shaft back and forward to get the oil in the right place.

Dereck

OK thanks for the comments. I think I pulled out the stuff in the little bearing box because I thought it was dirt. That was when I did the first cleaning.

Those older locos do run at different speeds. Its just the way it is. I have three BR23's [ DA800 etc ] and all are different. My two BR01's are different from each other as well. I Wouldn't necessarily say they were designed to run slower. Mind you different types of Locos are bound to be different. Both BR01's are noisey and one is noisier than the other [ gear noises ]. Yet some of my 50-70 year old geared locos are relatively quiet. A lot has been talked about on this forum relating to how the gears were made etc.

Dereck

Hi, if your locomotives have the boxes, you can find the date of production on it and will give you an idea of the year of your locomotive. There are several types of boxes and that can also give to you an idea.

Here is a guide http://www.maerklinist.de/pages...dell/kartons/kartons.htm
Hope this help you.
Also, there is a book called Kohls that can drive you about the version and age of your locomotives.
I saw your collection and looks very nice several classic analog tech, I love those ones. I got this year a very nice 3045 which is like your 3046 that had the oil problem but for the Danish railroad, it is rare because it was issued only for two years 1967-68. Your one is the French class 150 in green and black colour, there is also the German one model 3047 it is all back with red wheels, the 3045 is black with black wheels and has an odd light arrangement.