11. The locomotive was being transported along the M5 Motorway when a fire started on the lorry under the loco's leading wheels . 12. The weight of the locomotive was spread over six driving wheels with a diameter of and four smaller leading wheels in a bogie. 13. The highest number of leading wheels on a single locomotive is six as seen on the 6-2-0 S2 steam turbine. 14. For example, the 2-8-2 Mikado type locomotive had two leading wheels , eight driving wheels, and two trailing wheels. 15. Each engine unit has two leading wheels in a leading truck, six powered and coupled driving wheels on three axles and no trailing wheels. 16. Their leading wheels were mounted in a Krauss-Helmholtz Bissel truck which was arranged in front instead of to the rear of the cylinders. 17. Each power unit has two pairs of leading wheels in a leading bogie, followed by three coupled pairs of driving wheels and no trailing wheels. 18. The leading wheel will take most of the weight-almost like a wheelbarrow . talk ) 09 : 19, 22 February 2013 ( UTC) 19. Each power unit has a single pair of leading wheels in a leading truck, followed by four coupled pairs of driving wheels and no trailing wheels. 20. From engine number 03 123 onwards the pumps were located in the centre of the locomotive and from number 03 163 the locos had larger leading wheels .
