The class 62 express tank locomotive was part of the standard locomotive program of the German Reichsbahn-Gesellschaft (DRG). The 1,680 hp two-cylinder locomotive was designed for service on short main routes where the idea was to avoid turning the locomotives in the terminal stations in favor of short turnaround times. The drive wheel diameter of 1750 mm was a good compromise for good acceleration and a top speed of 100 km/h. During the DRG era, the 15 locomotives proved their worth, for example, in front of express trains in the hill country. The Deutsche Reichsbahn (DR) used the locomotives after the Second World War until the 1970s, for example on the Berlin outer ring. The five remaining locomotives on the German Federal Railway (DB) were withdrawn from service in 1956.
| Key | Functions | Sound slots | Volume CVs | Volume values |
|---|
| F0 | front light | 16 | 379 | 5 |
| F1 | sound on/off | 1, 2, 28, 32 | 259, 267, 475, 507 | 230, 230, 15, 3 |
| F2 | whistle | 3 | 275 | 255 |
| F3 | train driver's dialog #1 | 7 | 307 | 100 |
| F4 | coal shoveling | 5 | 291 | 30 |
| F5 | heavy load | | | |
| F6 | acceleration/brake time, shunting mode/shunting speed | | | |
| F7 | curve squeal | 15 | 371 | 50 |
| F8 | AUX#1 | | | |
| F9 | cylinder blow out | 9 | 323 | 130 |
| F10 | conductor's signal | 10 | 331 | 48 |
| F11 | coupler clank | 8 | 315 | 70 |
| F12 | coasting | | | |
| F13 | set brake/brake release (automaticly) | 13 | 355 | 50 |
| F14 | train driver's dialog #2 | 14 | 363 | 100 |
| F15 | ESU smoke generator | | | |
| F16 | safety valve | 12 | 347 | 128 |
| F17 | brake function 1 (brake valve sound) | 25 | 451 | 40 |
| F18 | train driver's dialog #3 | 22 | 427 | 100 |
| F19 | water pump (slow) | 21 | 419 | 50 |
| F20 | injector | 20 | 411 | 37 |
| F21 | water refill | 18 | 395 | 40 |
| F22 | dumping | 19 | 403 | 70 |
| F23 | turbo generator off/on | | | |
| F24 | air pump (slow) | 6 | 299 | 50 |
| F25 | sanding valve | 11 | 339 | 35 |
| F26 | sound fader | | | |
| F27 | disable brake squeal sound | | | |
| F28 | Stuffing box in slow speed on/off | | | |
| F29 | air pump (fast) | 27 | 467 | 50 |
| F30 | water pump fast | 26 | 459 | 50 |
Make sure that index CV31 is set to 16 and index CV32 is set to 1 before changing a volume CV.