On the streets of Kyiv today you can see the rare KrAZ, which still continues to operate successfully. This tank is on the KrAZ-250 chassis, the production of which began in 1978. The machine is used by the Kievvodokanal company to supply drinking water to residents of houses during repair work. A four-section tank with a volume of 8.4 cubic meters is installed on the chassis.
The history of the KrAZ-250 model dates back to February 1964, when a decree of the State Committee for the Coordination of Scientific Research ordered the Kremenchug Automobile Plant to develop a technical design for a new family of vehicles with increased payload capacity.
In the same year, the KEU body department already began working on a unified all-metal cab for the new three-axle family. It included a 14-ton flatbed truck – KrAZ-250, a 10-ton KrAZ-251 dump truck and a KrAZ-260 (6×6) all-terrain vehicle with a lifting capacity of 8.0 tons.
At the same time, from the very beginning it was decided to make the car’s cabin spacious and comfortable. Interestingly, this task was completed and even exceeded. Indeed, thanks to the reserves laid down during the design of the cabin for most parameters, even after 20 years it fully complied with the new OST standard adopted in 1986.
Unfortunately, the road to serial production for this cabin was long. The trouble is that the Kremenchug Automobile Plant at that time did not have the powerful presses necessary for its production, and there was no stamping equipment. And the ministerial bureaucrats were in no hurry to help the plant: they were quite satisfied with the great demand that KrAZ trucks enjoyed even with the old wood-metal cab.
And only in 1972, the GAZ and ZIL plants received instructions to design and manufacture the necessary dies and assembly and welding equipment for KrAZ. But this order and the subsequent one in 1976 were never carried out.
Despite this, in 1977 the plant began producing cabins using bypass technologies, although only 3–5 per month. And small-scale production of cars started in 1978. But truly serial production began after the installation of pressing equipment, only in 1984.
The KrAZ-250 differed from its predecessor not only in its modern hood and cabin design. The carrying capacity of the onboard vehicle has increased and amounted to 14,586 kg. True, the YaMZ-238M2 diesel engine with a displacement of 14.86 liters remained the same as that of the previous model. It still produced 240 hp. With. and maximum torque of 883 Nm at 1250 – 1450 rpm.
But in a two-stage transfer case, the top gear ratio has decreased from 1.23 to 1.0. And this gave an increase in maximum speed from 68 to 75 km/h. The efficiency and reliability of the brakes has been improved. And the wheels used were discless. Thanks to this, the car began to meet the requirements of the European road standard for width – 2500 mm.
It is very important that the KrAZ-250 required less time and labor during maintenance. The mileage before the first maintenance was increased by 1000 km, and the mileage until the second was increased by 1500 km.
Cars of this family were produced mostly in the form of a chassis. It had a curb weight of 9.2 tons. Various superstructures were installed on it, including tanks, truck cranes, concrete mixers, telescopic towers, fire escapes, etc. Production of the KrAZ-250 ended only in 1994. A total of 53,005 cars were produced