slower speed in a bachmann On30 4-4-9 w/dcc sound

[choochoopapa]

I have a Bachmann On30 4-4-0 w/sound and keep alive . Ican not find the cv s that would make it move slower any cv advise would be grateful.  help help help

[trainman203]

I can't wait to see a 4-4-9.

😂😂😂

[trainman203]

If it has an older Bachmann DCC on board decoder,  this should work.

This will work for any sound value engine, and for Tsunami before series 2.

1.  Get engine on a track controlled by a system that can change cv settings (no EZ Command)
2.  Set cv 2 (starting voltage), 3 and 4 (momentum), 209 and 210 (motor control) to 0.
3.  Set throttle to step 1.  Engine won't move yet.
4.  Try gradually increasing cv 210 value until engine barely starts to move.  It will be jerky.
5.  Slowly increase cv 209 value until jerkiness smooths out.
6.  Set momentum values for smooth start and stop.  I like cv3=50 and cv 4=35 but you may want more or less, experiment.

At this point that baby ought to start and stop silky smooth and crawl like an ant.

If things get catawampus you can always reset with cv8=8 plus track power interupption.