Between 1952 and 1957, the Swedish State Railways SJ procured a total of 93 examples of the Da for use in front of passenger and freight trains. The rod-driven three-coupler with jackshaft is based on the proven D series. After a few years of operation, the spoked wheels were replaced by rubber-sprung models, which significantly improved handling up to higher speeds. In operation, the top speed of the 1840 kW 1'C1' locomotives was limited to 100 km/h. From 1990, the reliable machines began to be phased out. Engineer/driver mode:
F4 - Pantograph up / down (only available in Engineer/driver mode). Engineer/driver mode switch on with CV170 = 1, Engineer/driver mode switch off with CV170 = 0)
The Engineer/driver mode serves as a prototypical control of the train. The realistic start up process and the current-dependent processes are activated.
***Please note! In Engineer/driver mode, the train only reacts when the pantograph is up***
Heavy load operation:
F5 - Activates heavy load operation. The acceleration now takes noticeably longer and the electric motors work harder.
Braking functions:
F12 - Brake function 1 - Downhill simulation (speed reduction with CV179 and CV182 adjustable). Train significantly reduces the speed.
F17 - Brake function 2 with brake valve sound. Trains brakes to a standstill.
Radiator fan automatic:
F15 - In standstill and radiator fan button off:
1 x press = radiator fan step winter / 3 x short press = radiator fan step summer / 2 x short press = stop radiator fan run-on after driving while stationary. If radiator fan button is permanently active = radiator fan remains in radiator fan step winter until button is switched off.
F15 - While driving and radiator fan button on: Radiator Fan button pressed = radiator fan step winter or summer (depending on the speed or forced activation) remains switched on and the button is switched off. Press twice = switch from radiator fan step winter to radiator fan step summer (depending on the speed or forced activation)
*** Attention: After switching on while driving from radiator fan step winter to summer, the step summer remains switched on until radiator fan function is switched off! ***
Deactivate braking Sound:
F27 - Deactivates brake squeal Sound when the train stops. (4 different brake squeal sounds with CV167 value 0-3 selectable)
side rod clank synchronization:
Speed and synchronization of the side rods adjustable with CV57 and CV58