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Bachmann WD Austerity

dcc fitting lenz wd




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8 replies to this topic

#1 RedgateModels

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Posted 20 October 2009 - 18:17

WD Austerity DCC

by RedgateModels

original page on Old RMweb
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??? originally posted on Fri Mar 28, 2008 10:50 am

Firstly, invert the loco and support it (I use a Peco servicing cradle). Remove the front bogie and unclip the dummy brake cylinder underneath the cab. This gives access to the fixing screws as below

WD_1.JPG

Make sure you have unclipped the cab handrails and gently ease off the body. It might be a bit stiff, but it does come off! The next pic shows the top of the motor with the PCB and carrying plate that needs to be removed

WD_2.JPG

Unsolder the black and red wires from the PCB and the wires leading to the motor, remove the whole PCB and black plastic carrying plate.

WD_3.JPG

Now, trim the wires from the decoder (a Lenz Silver in this case) to length, solder according to the usual "red, black to the track, orange and grey the other way", make sure you've threaded some heatshrink over the red and black wires from the pickups before soldering, test all is OK, shrink the heatshrink, pop a small strip of tape over the motor to insulate it from the decoder and reassemble - job done.

WD_4.JPG

Oh, and a little silcone grease on the gears and light oil on the motor bearings whilst you have it apart Posted Image
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Comment posted by Trains4U on Fri Mar 28, 2008 11:28 am

Saves me a job! Posted Image

Just how I would have done it.
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??? posted on Fri Mar 28, 2008 12:57 pm

I'll take that as a compliment, you should even recognise the heatshrink Posted Image

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#2 Super D

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Posted 23 January 2012 - 10:52

Thanks for reposting the images - much appreciated

#3 Super D

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Posted 06 March 2012 - 19:18

BEWARE!!!

I connected a TCS decoder as per the instructions to find I had a problem. Here is the reply from TCS.

You are correct in wiring the red and black to track. However you need to connect Orange and Gray to the motor.

Blue, Yellow and White control the head lite and back up lite.

#4 Andy Y

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Posted 07 March 2012 - 11:50

BEWARE!!!


solder according to the usual "red, black to the track, orange and grey the other way",


I think Redgate's instructions are clear enough and obviously TCS's advice to you concurs.
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#5 Dutch_Master

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Posted 07 March 2012 - 13:07

You can do away with the heatshrink by unsoldering the red and black wires from the motor instead of the PCB. Then solder the orange and grey wires from the decoder directly to the motor: orange where the red wire was, grey replaces black :)

#6 RedgateModels

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Posted 07 March 2012 - 13:14

Exactly as I did it - see the last pic above ;)

#7 Dutch_Master

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Posted 07 March 2012 - 23:04

Ok, missed that... :sorry:

#8 brossard

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Posted 28 May 2012 - 17:14

Just to add to the knowledge base, I used a Digitrax DZ125 which is very small indeed. The loco runs sweetly. I also tried an NCE N12SR initially. This fit but the wires really have to be cut quite precisely to the correct length. After install, the loco ran away and nothing I tried had any effect. I concluded the decoder was NBG (happens rather too often with NCE I think).

John

#9 greslet

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Posted 10 July 2012 - 23:40

ZTC255 works as well








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