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Discussion Boards => N => Topic started by: Lds760 on November 19, 2015, 09:28:54 PM

Title: N Scale GP40 Goes Way too Fast
Post by: Lds760 on November 19, 2015, 09:28:54 PM
Sorry, total newbie, but I have an N Scale Freightmaster set that came with a CEC wall pack with speed controller.  The thing flies around the track at the slowest setting and barely changes if I turn the knob.  How can I slow it down?  Thanks.
Title: Re: N Scale GP40 Goes Way too Fast
Post by: Desertdweller on November 20, 2015, 05:19:50 PM
Unless you want to return the whole set, you will need to isolate the problem.  It sounds to me like the problem is in your speed controller, not the locomotive.  See if you can borrow another N-scale locomotive and see how it performs.  If it runs too fast also, the problem is in your speed controller.

Another way would be to hook a voltmeter to the rails to see what amount of voltage your pack is putting out at different throttle settings.  I'd say you probably have a defective throttle.

Les
Title: Re: N Scale GP40 Goes Way too Fast
Post by: gatrhumpy on November 20, 2015, 05:46:34 PM
Quote from: Lds760 on November 19, 2015, 09:28:54 PM
Sorry, total newbie, but I have an N Scale Freightmaster set that came with a CEC wall pack with speed controller.  The thing flies around the track at the slowest setting and barely changes if I turn the knob.  How can I slow it down?  Thanks.

You probably have the track connected to AC power. Connect it to the DC power, and it should work properly.
Title: Re: N Scale GP40 Goes Way too Fast
Post by: Desertdweller on November 21, 2015, 11:59:46 AM
I disagree.  If you hooked the rails to the AC side, the loco would just sit and hum and burn out.

Les
Title: Re: N Scale GP40 Goes Way too Fast
Post by: spookshow on November 22, 2015, 08:15:03 AM
Quote from: Desertdweller on November 21, 2015, 11:59:46 AM
I disagree.  If you hooked the rails to the AC side, the loco would just sit and hum and burn out.

You are correct.

Cheers,
-Mark