The tractor is between the front and the carriage is a tool used for traction, which is the front of the vehicle can be separated from the original carriage and other traction carriage, and the carriage can also be detached from the original front by other locomotives traction general large trucks (trailer).
Compared with the same cargo truck tractor has the following characteristics: three short short beam, short wheelbase, rear suspension (rear axle extending after the short part); transmission gears and some more, from low speed to high speed 12 gear; larger fuel tank, double tank; compressed air reservoir capacity more; a trailer brake valve and trailer brake connecting pipe; a back light and pull circuit connecting plug.
The tractor is generally between the front and the carriage is a tool used for traction is the front of the vehicle can be separated from the original carriage and other traction carriage, and the carriage can also be detached from the original front is large trucks other front traction in general. Commonly known as "semi-trailer tractors", after a partial frame bridge point a bearing turntable, called "saddle".
