Remove the decoder and plug in the DC adapter. Hook up your multimeter using the DC amps option. Run the loco on 12 volts DC and do a current check.
Also, cut out any capacitors on the PC board but those should not cause and over temp condition.
What speed are you running the loco at? Just curious.
Rich
If you ever fall over in public, pick yourself up and say “sorry it’s been a while since I inhabited a body.” And just walk away.
It's a new one.
Dam
Is it a newer K4 or one of the old ones? The old ones might be over 1 amp.
--Randy
Modeling the Reading Railroad in the 1950's
Visit my web site at www.readingeastpenn.com for construction updates, DCC Info, and more.
Thanksm here's what I tried to post
Hi all
Hopefully someone can help. I bought a Bachmann K4 today and after fixing the solder short on the circuit board in the tender I fitted a Soundtraxx TSU 1000 and 8ohm speaker. Tight fit, but after some surgery it all went in. Ran fine for about 3 minutes until the decoder overheated. I then taped the flat side of the decoder to a metal weight in the tender to help cooling as recommended in the installation guide, still over heated. I then ran without the tender body on for max air circulation, still overheated.
Surely the motor draw in these K4s isn’t too much for a 1A decoder?
Any advice would be greatly appreciated
Dan
You need to use compatabiity mode (or whatever it's called) with the latest version of Internet Explorer. That's why we can't see what you've typed.
Yes, Tsunamis run very hot. Do you have any ventilation at all, assuming you mounted it in the tender? You might try cutting some plastic out of the floor of the tender to let some more air in.
It takes an iron man to play with a toy iron horse.