DF4B diesel locomotive overall device
1--diesel generator set; 2--decorative belt; 3--car body; 4-- bogie; 5--cooling device; 6--fuel system; 7--oil system; 8--cooling water system; 9--air filter; 10--ventilator; 11--measuring instrument; 12--air brake system; 13--sanding system; 14--automatic control system; 15--electrical equipment; 16- - Transmission mechanism; 17 - Preheating system; 18 - Anti-cold device; 19 - Battery box.