Metal Crank Loco Sounds Crash Injector Loco Sounds Loco Sounds Scraping coal shovel Steam Air Release Safety Air Pump Sand Coupler Fire Box Close Fire Box Open Metal Crank Loco Sounds Crash Injector Loco Sounds Loco Sounds Scraping coal shovel Lights (*2 Master volume) Bell Whistle Air Release Coupler Brake Squeal Conductor/Toggle Chuff Fire Box Whistle Select Water Blower Hiss Master Volume Coal Auger Air Hose Firing Shoveling Bell Select Bell Ring Rate Bell Volume Whistle Volume Chuff Volume Chuff Select Air Brake Release Range 0-32 Range 0-32 Range 0-32 Range 0-32 Range 0-3 MRC claims Range 0-14 on Challenger, 0-18 on Big Boy Range 0-3 Range 0-3 Range 0-3 Range 0-50 Range 0-3 Range 0-3 Range 0-3 Range 0-3 Range 0-3 Range 0-3 Range 0-3 Range 0-3 Range 0-3 Range 0-3 Range 0-3 Disable, constant lights Enable, Directional Range 0-2 MRC docs, not on Big Boy Range 0-3 Range 0-3 Range 0-30 Range 0-7 MRC docs, not on Big Boy, but it DOES work Linear Slow increase at slow speed Fast increase at slow speed MRC