At harvesting a harvester passes many tens of kilometers. The way to fields lays mainly along the country roads, and the pavement quality of such roads is not worth mentioning — it does not exist. And fields are very different: today you work on an even and wide field and the next day you have to harvest a narrow and rough field. In such conditions the harvester
ride-qualities are no last factor of harvesting completion to time.
«Vector», as all modern harvesters, is equipped with hydrostatic transmission, which ensures a stepless speed adjustment within any of 3 ranges. Unlike
«Don-1500», «Vector» has a more powerful engine
GST-112. Such conception improves the reliability of the undercarriage drive gear by the increase of the reserve power and hydraulic motor operational life. The transmission ratio of 2
nd gear is modified for the purpose to increase operational speed till 12 km/h (usually — till 10 km/h), that is important at operating
on low-yelding fields. The travelling speed is increased to 25 km/h, the turning radius is minimized (8,1 m) — «Vector» is well adapted for driving.
The fore and rear wheels track coincide, that reduces a detrimental effect of tyres on the soil. The low-pressure tyres reduce the load on the soil, increase a draft and reduce the fuel consumption. The high self-cleaning lugs (the «herring-bone» type) improve the harvester readability and allow to operate on the «slushy» road.