I've seen a number of different failures. When they're working properly, they step up from "low-medium-high" when you press the smoke key repeatedly. There's no "boost" like in TMCC, any boost is applied automatically by the Legacy logic. Somewhere there is a chart that I believe Mike Reagan posted once that showed the sequencing of the Legacy smoke operation. At each upward step there was a brief automatic "boost" before it settled at the new setting. If the smoke regulator is doing what I've seen some of them do, it may be forgetting the "high" setting and when you step back up it's applying the high boost momentarily.
FWIW, the Legacy smoke units also respond to the TMCC regulator key sequences, might be useful to try those and see what happens.
AUX1, AUX2, 9, H, then AUX2 again to save the setting. This sets the smoke volume to high.
The L,M,H, buttons are the momentum buttons at the bottom of the remote, they also select smoke volume.
Setting smoke volume on TMCC locomotives with smoke regulator.
- AUX1
- AUX2
- 9
- <vol> (see below)
- AUX2
<vol> is the smoke volume setting, L, M, or H. The L,M,H, buttons are the momentum buttons at the bottom of the remote, they also select smoke volume.
When you're done, you will probably want to set the momentum back to your desired setting as setting the smoke volume affects that too.
