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Discussion Starter · #1 ·
Having purchased a Bachmann turbostar [middle coach power unit], find running this model from standing mode to moderate speed, rather interesting.
Turning the CPU voltage control knob marking 40 - the turbostar remains stopped, and after a few seconds slowly attains the preset speed of 40.

Can any forum member know as to this being the correct running procedure?

Is this procedure due to a capacitor fitted to enable the gradual speed up of the motor?

Or is this a fault?
that could in time damage the motor or at worse burn out the motors field coils?
Any replies will be most appreciated.
 

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If you are running on DCC this is normal - it's all down to the setting of the acceleration CV.

If you have further problems on DCC let us know what control system & decoders are in use & post in the DCC forum (hard hats optional, but recommended !)
 

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Just a thought...did you buy this second-hand? If so, and you are using DC, it may have a DCC decoder in it and be running to the settings last used when on DCC.
 

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QUOTE (IanBartlett @ 18 Dec 2006, 09:07) <{POST_SNAPBACK}>Just a thought...did you buy this second-hand? If so, and you are using DC, it may have a DCC decoder in it and be running to the settings last used when on DCC.
That sounds most likely. I have a couple of these and found that they were slow on the take off on analogue dc. I'm not sure if they were as slow as what you are describing. They didn't seem to have a high overall speed either.

I have converted one to dcc and It now has a Lenz Gold in it so it acts the way you say yours does as a matter of course. I reckon have a look inside the centre coach as Ians guess seems best.
 

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Of course Neil - I've found the same - if you run a DCC equiped loco on analogue DC the acceleration setting will still function as if on DCC.
 

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if its new take a quick look at how much lubrication they put in it. i find that all my bachmann bogie mechanisms run rfar better if i clean out all the muck they put in it.

in the instructions it states "lightly lubricate" and thats exactly right. a pinhead of oil should be plenty to last for many years of happy running.
my voyager was running slowly. i took the bogies apart to find them actually full of PTFE grease.
And i recently took an ivatt tank out of the box to have it drip oil all over the place.

peter
 

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Discussion Starter · #7 ·
Thank you all for your observations. The Turbostar model runs on my DC powered layout and an examination of the inners show no DCC circuit board fitted. The Turbostar model was purchased from Rails of Sheffield last summer as new from their Web site.
I have found that all the Bachmann powered bogies - brass cog fitted both ends of driving shaft require some grease application, to reduce the noise element generated.
 
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