Hello all,

I got yesterday four Märklin 60944 LFCM motor conversion sets from Eddie. I'm planning to buy four Märklin 210882 field magnets more to be able to convert eight of my locos with these sets. I have at home those extra brush sets. In each 60944 set there comes one 7 and one 8 tooth anchor. There comes also two different types motor cover plates. I have these locos with LFCM type motors (large flat commutator motor):

HR 800 N black/red DB BR 01 steam loco
4 x F800 black/red DB BR 01 steam loco
RET 800 green SBB Re4/4 electric loco
13 x 3021 red/blue DB V200 diesel
2 x 3022 green/black DB E94 electric loco
3027 black/red DB BR 44 steam loco
2 x 3050 green SBB BR Ae 6/6 electric loco
2 x 3066 green/yellow SNCB "Nohab" diesel
3068 brown NSB "Nohab" diesel
3 x 3072 red DB V100 diesel
3074 beige/ocean blue DB BR 216 diesel
2 x 3075 red/grey DB BR 216 diesel
3081 beige/ocean blue DB BR 220 diesel
3083 green/black French ETAT BR 231 steam loco
3089 red streamlined DRG BR 03.10 steam loco
3091 black/red DB BR 18.4 steam loco
3092 green/black K.Bay.Sts.B. S 3/6 steam loco
3094 black streamlined DRG BR 03.10 steam loco
"3096" black modified to ÖBB BR 86
3111 brown/black SNCB "5920" (similar to German S 3/6 or BR 18.4 steamer)
3112 black/red ÖBB BR 86
3137 green NSB "Nohab" diesel
3143 brown NSB "Nohab" diesel
3193 black/red DB BR 01 "Primex" steam loco

= total of 45 locos with this LFCM type motor.

My problem is which of these should I convert to digital or if some are already equipped with digital decoder etc. which should I improve with these 5-pole DCM motors? I will install a ball bearing to all motor covers, but as the frame side of the anchors axles is larger than in normal DCM motor I will leave that side as it is (mostly metal to metal contact). The ball bearings I have are not suitable to the frame side of these locos.

Maybe these as they are not "too old" and expensive. So good candidates to modify and digitalise later without any hard feelings to modify too old locos which I rather keep as original:

3083 ETAT, 3111 SNCB, 3193 DB, 3089 DRG, 3074 DB, 3068 NSB, 3137 NSB and 3143 NSB. All of these are still original analog models.

Some locos from my list are mentioned in the instructions of the 60944 set. I would be glad to know how many of these have 7 or 8 tooth anchors and if I have enough of them and motor covers? I have 4 of each type anchors and motor covers.

I have not decided yet what kind of decoders to use with these 60944 motor kits. Märklin mLD or mSD (expensive but nice!), ESU LokPilot V4 or ESU LokSound decoders... I could maybe use Märklin 6090x type of decoders also if I don't want to have sounds. In my opinion diesels can be without sounds, but for steam locos sounds are a great addition. Without sounds it will be relatively inexpensive and with sounds it gets expensive.... But in the end it does not cost very much extra to get sound decoders when there comes two loudspeakers and other accessories with them.

One of my 3021's is already equipped with 5-pole motor and ESU decoder. One 3066 SNCB Nohab has already 5-pole motor and ESU LokSound 3.5. One 3022 has 5-pole motor and Märklin 6090x decoder. 3096 "ÖBB" has 5-pole motor and ESU LokPilot 4 decoder. 3094 DRG black streamliner, 3092 K.Bay.Sts.B. green/black, 3081 DB BR 220 and 3050 SBB Ae 6/6 have all old Märklin 6080 decoders at the moment. One of my 3075's has older ESU LokPilot decoder and motor done (permanent magnet). Same with one of the 3072. It is actually from 2855 "EVA train set".

I want to keep my oldest locos as analog as I want to use them on our analog layout in the garage.

3112 ÖBB BR 86 would otherwise be good one to modify, but it is somehow very noisy from it's gears. So it can then stay as analog because of this.

I'm sorry for the loooooooong post . I'm just deciding which locos to choose. Feel free to give your suggestions. 3050, 3081, 3092 and 3094 are also "possible" to improve from their current old motors and 6080 old "mouse piano" decoders.

Regards,
Janne

Hi Janne,

There's a lot of useful information in the Digital section in the thread called "Motor Perts for digital conversion of M locos", which is a sticky topic. There I found:

E276770 lamp socket (incl cables) or 604180 (no cables and much cheaper)

I didn't know about these kits. Thanks Francisco!

I guess they had to make these to be able to make the digital 30080 model replica.

Thanks Francisco
I've been searching this for a while for my 3048.

BR,
Juha

Janne, I'm surprised no one has referred you to this list - this is the official Marklin list of what is convertable...

http://www.marklin.com/tech/decodertable.html

Edited by user 15 September 2014 13:25:01(UTC)  | Reason: Corrected spelling mistake

Thank you very much! This helps me a lot .

Janne

Edited by moderator 15 September 2014 13:25:39(UTC)  | Reason: Corrected BDNZ spelling mistake

The table used to have details on which armature (anker) type is required for each of the LFCM conversion - 7 or 8 tooth rotor - but they seem to have omitted it from this version.

However, I had this document saved on my PC, and have been able to find the url for it on the marklin.com website. The table in paragraph #2 shows what rotor and brushplate is required for each of the LFCM locos.

http://www.marklin.com/tech/2-2000.html

I think they are 3.9 uH inductors, and I use common stock 3.3 uH inductors with rebuilds where I don't use a kit that includes inductors.. 3.9 vs 3.3 works in the same critical frequency spectrum.

These are low-pass filters to reduce voltage spikes from motor "sparks" to the decoder... Ie to reduce possible decoder damage risk & radio interference...

That's a good way to do it, and exactly what I did with my 3021 V200 (7 teeth) and my 3060 Ae 6/6 (8 teeth) when I converted them.

After 7 years the links posted by BigDaddyNZ have stopped working. Is anybody aware of new working links on this subject ?
Thank you
Marco