Skip to main content

i have a scale weaver 4-8-4 that I put a Lionel fan driven smoke unit in it pulls 0-4 amp at 19 volts which connection should i hook up to? I would like it to be in time with the chuff, but I don't want to blow out the commander all it runs is the motor all of the lights are on the pickup roller  that run off of track power

Original Post

Replies sorted oldest to newest

There's no way a smoke unit should draw 4 amps!  That will cook the R4LC triac in seconds!

Also, if the engine is drawing four amps without the smoke unit, you likely need to either repair whatever is binding or if everything is free, replace the drive motor.  An unloaded locomotive with a can motor running alone shouldn't draw more than about an amp.  I have seen a few defective Williams motors that draw excessive current, and I've had to replace them.

As Pat suggests, the Chuff-Generator and the Super-Chuffer II will give you a complete smoke management package for steam fan driven smoke.

I've had a number of the Williams and Weaver motors on the bench that drew 2-3 amps and even more when free running, that's WAY too much current!  Needless to say, they also got pretty hot after a short time.  I properly operating can motor that you find in O-gauge your model locomotive should never draw even an amp on the bench with no load.

A popular Pittman motor size, the 9433F686 draws just over 200ma at 12VDC on the bench.  This is the size motor that's used in the largest steamers.  The Mabuchi 555, a similar size motor, draws around 300ma.  My Mabuchi 365 and 385 samples draw from 175ma to around 300ma on the bench.  All these motors are rated at 12V, and those are the results I would expect as a rule.

Add Reply

Post

OGR Publishing, Inc., 1310 Eastside Centre Ct, Suite 6, Mountain Home, AR 72653
800-980-OGRR (6477)
www.ogaugerr.com

×
×
×
×
Link copied to your clipboard.
×
×