In 1963 the Soviet State Railways ordered a six-axle diesel locomotive with a central driver's cab based on American design principles in the Czech Republic. These had proven themselves in the Alco-RSD1 delivered to the USSR in World War II. The Czech State Railways CKD had the T669.0 derived from the Czech locomotive type supplied to the USSR (referred to as the 770 series from 1988) and purchased 110 units. The charged six-cylinder diesel engine CKD K 6s 310 DR developed 994 kW at 750 rpm and generated the energy for the six electric drive motors TE 006. The maximum speed is 95 km/h. A train heater was not available. CKD delivered similar locos to Albania, Iraq, Syria, India and Poland. Different starting processes can be selected with F1: 1x press button = warm start / press button 2x = false start / press button 3x = cold start
F5 enables the heavy load mode: The diesel notch is always one up compared with normal operation. If you want to jump two notches, simply set CV 104 to 170 (instead of 150).
F17 will bring the locomotive to full stop