MAZ 6303 car is considered one of the most popular today. Belarusian products are distinguished by their unpretentiousness and maximum usability. Even active exploitation vehicle will not lead to undesirable consequences. Today, the manufacturer MAZ is working hard to create improved models that will delight consumers with ergonomics and a long operating period. High strength will avoid unexpected breakdowns.

Features of the model

According to the technical characteristics of MAZ 6303, the vehicle is a unit with a chassis carrying capacity of up to 14.7 tons. Powerful yaMZ engine ensures efficient execution of any tasks important to the user. Depending on the specific modification, the car can move at a maximum speed of up to 95-100 km / h, which is the optimal indicator for a car for this purpose. The special 6x4 wheel arrangement provides high maneuverability of the ATZ 6303 model on various types of surfaces, which will allow the driver to feel calm and confident on the road. Also MAZ 6303 has excellent user characteristics.

Possible modifications

If necessary, you can use the service of manufacturing vans based on the chassis of this model. The final carrying capacity of MAZ will depend on the selected superstructure. The following modifications of vans exist.

• Manufactured goods vans. Made of steel and special automotive enamel. Also used in the manufacture of galvanized, plywood and clad metals.
• Isothermal vans. They are made from the same materials as manufactured goods.
• Refrigerators. The role of thermal insulation is performed by polyurethane foam and foam.
• Highly specialized machines.
• Boards with crane-manipulator installations.

The carrying capacity of MAZ 6303 A5 is 15200 kg. with an assembly length of the frame 5090 mm. This is one of the most versatile chassis in terms of possible superstructures and applications.

As power unit MAZ 6303 has a v-shaped turbocharged diesel engine YaMZ-6582.10 with a capacity of 330 hp, developing 1274 Nm of torque at 1100-1300 crankshaft rpm. To transmit torque to the rear axles, the developers equipped the MAZ 6303 with a gearbox with eight gears of the YaMZ-2381 model. This combination of engine and gearbox, as it later turned out, became one of the the best options for this chassis.

Accurate information about real expense MAZ 6303 fuel was not provided by the manufacturer. The control measurement on the stand showed the result of 24.3 l / 100 km. mileage. The test was carried out at a constant speed of 60 km / h. Maximum speeddeclared by the manufacturer for this vehicle is 85 km / h. A complete list of the official technical characteristics of MAZ 6303 can be found in the table below.

Enterprise "NizhSpetsAvto", engaged in the manufacture and supply of special road transport in the cities of Russia, sells MAZ 6303 and special equipment based on it. All products of our plant are produced in strict accordance with the regulations governing the main parameters and characteristics freight transport.

You can buy MAZ 6303 log truck, grain carrier, flatbed truck, camper van, crane manipulator, hydraulic lift, and other types of special equipment from us.

You can find out the exact price of MAZ 6303 of any modification and with the desired superstructure in our sales department.

Delivery to regions

OOO TPK "NizhSpetsAvto" delivers vans, tow trucks, manipulators, on-board vehicles and other types of special equipment to all cities of Russia.

For example, if you want to buy a campervan in Moscow (or any other city in Russia), but do not have the opportunity to transport it yourself from Nizhny Novgorod, then especially for such cases, we provide a service for the delivery of trucks to all regions of the country.

MAZ-6303 is a truck that still evokes ambiguous feelings among both old-school drivers and new generation professionals. This brainchild of the Minsk Automobile Plant cannot boast of a stylish exterior, like, for example, BMW or Volvo trucks, and the interior equipment of the cab remained at the level of Soviet-era minimalism. However, the lack of external respectability is fully compensated for by excellent technical and operational characteristics This model is one of the most powerful and durable vehicles in the MAZ three-axle truck line, designed to operate at medium and long distances in any climatic zone.

The history of the MAZ-6303 model began back in 1965. It was then that Belarusian designers began to take the first steps towards the creation of full-fledged three-axle trucks with increased carrying capacity. The need to create such cars was due to the intensively increasing volumes of cargo transportation, as well as the poor quality and insufficient ramification of the roads of that time.

The engineers embodied their first developments in the segment of three-axle heavy trucks in the onboard MAZ-516 with a suspended rear axle, truck tractors MAZ-520 and 515, as well as in an on-board main tractor with a passage middle bridge MAZ-514.

As tests showed, these experimental models were still very far from perfect, despite their promising potential. In particular, an increase in the carrying capacity of vehicles required the use of more powerful engines, rear suspension improvements, chassis redesigns, etc.

Over the next years, these models have undergone many changes, but the fate of each of them has developed in a different way. For example, the first batch of improved MAZ-516 rolled off the assembly line in 1969. From 1970 to 1981, the production of the modernized MAZ-516A and 516V continued. MAZ-515 and 520 never went into mass production, but the concept of steering of the latter was later used by designers when creating the MZKT-6515. MAZ-514 tests took place in 1969, but the power of the six-cylinder YaMZ-236 engine for the model that was supposed to work as part of a road train was not enough, therefore the first industrial batch with a 270-horsepower YaMZ-238E engine was released only in 1974.

In the next 10 years, MAZ designers worked fruitfully on the creation of powerful and multifunctional trucks, and by the beginning of the 90s, the enterprise already had in stock several rather successful new generation models. heavy vehicles... It was this fact that helped the car plant not only more or less calmly endure the economic crisis caused by the collapse of the USSR, but also continue the development and production of new cars that were so needed at that time to maintain the competitiveness of MAZ.

Onboard MAZ-630305

One of such bright and fresh models is the powerful onboard three-axle vehicle MAZ-6303, distinguished by its original technical solution in the form of a 6x4 wheel arrangement. This vehicle was originally created for European requirements, so it was, as they say, doomed to success. The novelty turned out to be so successful that almost all subsequent three-axle heavy-duty trucks of the Minsk Automobile Plant had a certain "kinship" with MAZ-6303.

On the basis of this model, special vehicles such as MAZ-630168 (6x2), MAZ-6317 (6x6), a powerful MAZ-630326 timber carrier, a large tractor for work as part of a road train with a carrying capacity of up to 67 thousand kg and other versions were created.

Specifications

Truck MAZ-6303, the technical characteristics of which allow using the machine in difficult conditions, produced at the Minsk Automobile Transport Plant. The truck is equipped with a sturdy steel frame. The linings can fail, but replacing them is simple. The middle bridge is located between the main nodes of the machine. If noise occurs, the gears or bearings must be replaced.

The truck is equipped with an 8-speed transmission. Transmission high Quality, gear shifting is smooth. The car is equipped with an old-style cab: small or large. It has excellent sound insulation. Some models have a spring driver's seat.

The cabin has good overview, along the edges there are handles with which it is easy to climb into the salon.

The cab is almost vibration free. The cab design and ergonomics are still not at the highest level.

The heater tap is hard to find. Wheel vibration is common. The location of the jack and other equipment is not very convenient. The filter cover is not secured with latches, as in modern models, but with studs and nuts. But still, the car is popular because of its high cross-country ability and low cost. The car has:

• engine heater;
• trailer pneumatic outlets;
• soundproofing of the cab;
• seat belts;
• protective device.

Large truck dimensions do not interfere with development high speed, which reaches 85 km / h.

Description of characteristics:

1. The weight in the road train is 44,000 kg.
2. Machine weight - 24,500 kg.
3. Fuel consumption - 25 l / 100 km.
4. Volume fuel tank - 350 l.
5. Dimensions - 10230x2570x4000 mm.
6. Platform area - 18.14 m².
7. The length of the cargo compartment is 7560 mm.
8. Track - 2032 mm.
9. Wheel formula - 6x4.
10. Carrying capacity - 13100 kg.
11. Impact on the front axle - 6500 kg.
12. Impact on rear axle - 18000 kg.

Engine

On modern MAZ mainly installed diesel engines Yaroslavl Motor Plant 238 series, which includes various modifications that differ in their power characteristics. The choice of a specific version is determined by the purpose of the vehicle.

The YaMZ-238 line includes 4-stroke 8-cylinder V-shaped power plants in its nomenclature. Engine power ranges from 170 to 400 hp. Each of the cylinders has a pair of valves. The total working volume of the cylinders is 14.86 liters, and the diameter of each of them is 130 mm. Rotational speed indicators are: at rated power - 2100 rpm, at maximum - 600 rpm.

The engine is located at the front longitudinally. All unit modifications have liquid cooling, are equipped with a special heating system designed to simplify their start-up in freezing temperatures, and comply environmental standards "Euro-3".

Despite the solid power indicators, YaMZ-238 engines are characterized by rather economical fuel consumption. For 100 km, this figure is: in mixed mode - about 27.5 liters, in city conditions - 40 liters and on the highway - about 25 liters.

Powerful and reliable motors provide MAZ-6303 heavy trucks with decent dynamic characteristics. So, in the presence of a speed limiter, a truck can accelerate to 85 km / h, and without it - up to 100 km / h.

Fuel consumption

For MAZ-630305-250, fuel consumption per 100 km is 27.5 liters. The volume of the fuel tank is 350 liters. Most often, while the truck is moving on the highway, fuel consumption is reduced to 24.3 l / 100 km. In the city, this value increases to 40 l / 100 km.

Transmission

MAZ-6303 vehicles are equipped with various modifications of the upgraded mechanical transmissions of the YaMZ 238 series in accordance with the modification of the installed engine. These units are 8-speed units with gears equipped with synchronizers. forward motion... The design of the gearbox includes a main four-speed box and a two-stage additional box - a dual-range planetary range, the main purpose of which is to increase torque.

This is a very important function for heavy duty vehicles operating in heavy road conditions... It allows you to expand the capabilities of the main box, in particular, to increase the number of gears, without interfering with its design.

For example, a car moves at the required speed in 4th gear, but the engine is overloaded, and the transition to 3rd gear is impractical due to high revs... The demultiplier helps to solve this problem. When it is downshifted, the optimum gear ratio is formed under the given conditions.

Gear shifting to a gearbox with a demultiplier has its own characteristics, therefore it should be carried out in strict accordance with the algorithm prescribed in the technical documentation for the unit.

Chassis

The front suspension of the car is leaf spring, on two semi-elliptical springs, with two double-acting hydraulic shock absorbers and a stabilizer lateral stability... The rear suspension is spring-balanced. The steering gear is two-stage, with a gear pair, a helical transmission and a built-in distributor. All wheels are equipped with drum brakes. Rear tires are double. The main braking system is pneumatic type, with separate drive for the front and rear wheels... The parking brake has a pneumatic drive using spring-type brake accumulators on the rear wheels. Auxiliary brake - compression, with dampers in the system exhaust gases engine. The pneumatic drive for the trailer (semitrailer) brakes is two-wire. Depending on the modification on disc wheels tires of size 11.00R20 or 12.00R20 can be installed.

Brake system

The truck is equipped with a working, parking brake system, as well as a spare and auxiliary braking system. The machine is equipped with devices for connecting brakes, a semi-trailer with pneumatic drive and compressed air supply. The service brake system acts on the braking mechanism of all wheels. Diagram of the MAZ 630308 braking system, separate with a pneumatic drive.

The brake system is driven by electrical pressure modulators of the anti-lock braking system. The parking and additional system influences brake units rear and middle axles, driven by brake chambers with spring energy accumulators. The control takes place using a crane in the cab.

The parking brake system is needed to brake the machine if the working system fails. When it is turned on, the control valve handle turns to the extreme position. The compressed air that compresses the accumulator springs is released to the outside and the springs start the brake mechanism.

When the emergency system is activated, the parking brake control valve is in an intermediate non-fixed position. The auxiliary system acts on the transmission, creating back pressure to the exhaust system by throttleequipped with a pneumatic drive.

Electronic control brake systems supplies air to the fuel limiting cylinder through a proportional valve, it is regulated traction control system and a speed limiter. When the truck is braking, the trailer brakes at the same time.

Vehicle device

In the MAZ 6303 machines produced, the classical design scheme is used, where the frame, which is made of durable materials, is considered as a load-bearing element for the body, the power plant, as well as the suspension. This allows it to withstand even harsh conditions of use. But there are also vulnerabilities, which are considered cross members and linings. At the same time, it is easy to replace them, if necessary, for this you must first order the parts through any catalog. The middle bridge itself has a complex design due to the fact that it is a connecting element for the main nodes.

As a power plant, a YaMZ 238 diesel unit of various modifications is used. Which version is installed on a truck is determined by its intended purpose. So, the line of these engines includes 8-cylinder engines with a capacity of 170-400 hp. from. The working volume of such a power plant is 14.86 liters.

The cab body can be shortened, as well as full-size, including 2 berths.

MAZ 6303 is a universal chassis that can be equipped with various types of bodies. The most popular is the truck version. The model was produced in the 90s and since then has received many improvements and modifications.

Cabin

The machines are equipped with large and small cabins. The first is installed on long-haul trucks, truck tractors, and vehicles for the transportation of goods over long distances. There are two berths in the cabin of increased capacity. The small cab is installed on special vehicles, as well as on trucks for transportation of goods over short distances.

The MAZ-6303 model has a cabover-free layout, in order to gain access to the engine, the driver needs to tilt the cab forward. The process is facilitated by the presence of a hydraulic system.

The car has a fairly roomy and spacious interior, which provides an excellent overview of the road space, the interior is not susceptible to vibrations and noise penetration. Thermal insulation is also excellent. The disadvantages of the interior of the truck include the poor quality of finishing materials, imperfect build quality.

In the standard configuration of the cabin, there are suspension seats for the driver and passenger, seat belts, main and autonomous heater... It is easy to turn the steering wheel and press the pedals, which allows you to work on the truck for a long time without getting tired.

Attention! The design of the MAZ-6303 truck implies the presence of a heating tap under the cab, because of this, the process of turning on the heaters is rather inconvenient - the driver needs to get out of the truck, raise the cab, and unscrew the valve to allow heat to enter the cabin.

Modifications

The original version is universal chassis, when using which it is possible to install different types of equipment. For example, the body can be used with an open or closed awning board, as well as a dumping version. It is possible to mount a platform that allows you to transport tanks, a grain carrier, and a crane. Each variant of the created modification received its own unique index indicating the type of construction:

• MAZ-630326 - is a timber carrier;
• MAZ-630308 - used for the transportation of tankers;
• MAZ-630305 - used for the carriage of goods in a closed cabin and an additionally connected trailer;
• MAZ-630168 - a model used for transit traffic;
• MAZ-630303 - designed for installation on the chassis of various mechanisms for road construction;
• MAZ-6317 is an all-terrain version.

The above TTX different types truck represent conditional descriptions of models.

Features and operation

Despite the fact that the MAZ 6303 cab was developed for a long time and is inferior in terms of design to many Western competitors, on the whole it turned out to be successful. Experts note low level noise and vibration, good visibility from all sides. Not only the driver's seat has air suspension, but also the passenger's seat. In conditions of low temperatures, a comfortable stay in the cab is provided by the main and additional heating system. However, the location of the heater tap under the cab does not add comfort in severe frosts. Drivers also complain about the cover air filter on studs with nuts (instead of latches), which makes it difficult to quickly replace the filter element. Complaints are often expressed about the location of the hydraulic lift of the cab in a place unprotected from dirt. However, despite minor flaws, reviews about the car among motorists are mostly positive. In the basic configuration MAZ 6303 is equipped with:

• Spoiler and rear guard;
• Backlash-free coupling;
• Electro-pneumatic leads to the trailer;
• Safety belts;
• Engine preheater;
• ABS system.

The engines of the Yaroslavl Mechanical Plant of the 238th series installed on MAZ 6303 do not cause any special complaints. Depending on the intended purpose, power plants with a capacity of 170 to 400 hp can be installed. In general, the car is reliable, easy to maintain and repair, and is familiar to domestic drivers. There are no problems with the availability of consumables and spare parts, the price of which is much lower than for the European and American analogues of MAZ 6303.

Pros and cons

Benefits:

• Low price;
• Operational reliability;
• Powerful power unit;
• High efficiency of fuel consumption;
• Compliance with European requirements for environmental safety;
• The versatility of the cargo chassis;
• Relatively comfortable interior;
• The presence of a cabin with two berths;
• Maintainability.

The disadvantages truck include:

• Outdated appearance;
• Non-ergonomic arrangement of the heater valve;
• Poor painting quality;
• Uncomfortable interior, use of cheap materials in the decoration and poor build quality of interior panels.

The truck has been produced since the early 90s, but it still retained its relevance, largely due to its advantages and low price. Even used cars are strong enough and can last for more than one year. The disadvantages of the car, first of all, lie in the low quality of painting, poor assembly of interior panels and the use of cheap materials in the interior design of the cab. MAZ-6303 can hardly be called a premium truck, however, it is an inexpensive, versatile, unpretentious, economical and reliable workhorse, capable of easily performing the tasks assigned to it.

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Reliability

Convenience and comfort

Maintainability

MAZ-6303 is a truck that has high technical indicators. It is distinguished by high power, good cross-country ability, and can operate in regions with different climates.

Device and technical parameters

The MAZ-6303 truck, the technical characteristics of which allow the vehicle to be used in difficult conditions, is produced at the Minsk Automobile Transport Plant. The truck is equipped with a sturdy steel frame. The linings can fail, but replacing them is simple. The middle bridge is located between the main nodes of the machine. If noise occurs, the gears or bearings must be replaced.

The truck is equipped with an 8-speed transmission. The gearbox is of high quality, gear changes are smooth. The car is equipped with an old-style cab: small or large. It has excellent sound insulation. Some models have a spring driver's seat.

The cab has a good view, handles are installed along the edges, with which it is easy to climb into the cabin.

The cab is almost vibration free. The cab design and ergonomics are still not at the highest level.

The heater tap is hard to find. Wheel vibration is common. The location of the jack and other equipment is not very convenient. The filter cover is not secured with latches, as in modern models, but with studs and nuts. But still, the car is popular because of its high cross-country ability and low cost. The car has:

• engine heater;
• trailer pneumatic outlets;
• soundproofing of the cab;
• seat belts;
• protective device.

The large size of the truck does not interfere with the development of a high speed, which reaches 85 km / h.

Description of characteristics:

1. The weight in the road train is 44,000 kg.
2. Machine weight - 24,500 kg.
3. Fuel consumption - 25 l / 100 km.
4. Dimensions - 10230x2570x4000 mm.
5. Platform area - 18.14 m².
6. The length of the cargo compartment is 7560 mm.
7. Track - 2032 mm.
8. Wheel formula - 6x4.
9. Carrying capacity - 13100 kg.
10. Impact on the front axle - 6500 kg.
11. The impact on the rear axle is 18,000 kg.

Engine

The MAZ-6303 truck has a four-stroke, 8-cylinder diesel engine manufactured at the Yaroslavl Motor Plant. The engine has a large margin of safety, is reliable and has a long service life. Each cylinder is equipped with two valves. In the car, the motor is located longitudinally.

See " Characteristics of the onboard vehicle MAZ-5336 and TOP-4 of its modifications

Specifications engine:

1. Volume - 11.15 liters.
2. Power - 184 kW.
3. Euro-3 quality standard.
4. The motor is equipped with a heater, which makes it easier to start it in cold weather.
5. The torque is 1225 Nm.
6. The motor is liquid-cooled.

Fuel consumption

For MAZ-630305-250, fuel consumption per 100 km is 27.5 liters. The volume of the fuel tank is 350 liters. Most often, while the truck is moving on the highway, fuel consumption is reduced to 24.3 l / 100 km. In the city, this value increases to 40 l / 100 km.

Brake system

The truck is equipped with a working, parking brake system, as well as a spare and auxiliary braking system. The machine is equipped with devices for connecting brakes, a semi-trailer with pneumatic drive and compressed air supply. The service brake system acts on the braking mechanism of all wheels. Diagram of the MAZ 630308 braking system, separate with a pneumatic drive.

The brake system is driven by electrical pressure modulators for the anti-lock braking system. The parking and auxiliary system affects the braking units of the rear and middle axles, which are set in motion by means of brake chambers with spring energy accumulators. The control is carried out with the help of a crane located in the cab.

The parking brake system is needed to brake the machine if the working system fails. When it is turned on, the control valve handle turns to the extreme position. The compressed air that compresses the accumulator springs is released to the outside and the springs start the brake mechanism.

When the reserve system is activated, the parking brake control valve handle is in an intermediate non-fixed position. The auxiliary system acts on the transmission to create back pressure to the exhaust system through the pneumatically actuated throttle valve.

Electronic brake control supplies air to the fuel limiting cylinder through a proportional valve, which is controlled by the traction control system and the speed limiting unit. When the truck is braking, the trailer is braked at the same time.

Manipulator

MAZ-6303 timber carrier is equipped with a hydraulic manipulator, which has the largest boom reach of 8.1 m. The on-board manipulator allows lifting and transporting goods. Hydraulic manipulators are placed on the chassis with a load moment from 1 to 25 tm. A place for a loader crane is provided at the rear of the truck.

See " Characteristics of the MAZ-4371 flatbed truck and several popular modifications

Lifting capacity

The carrying capacity of the vehicle is 12,700 kg with a permissible total vehicle weight of 24.7 tons. The rear axle has a load of 18 tons, and the front axle is 6,700 kg. Full weight unit as part of a road train - 44 tons. To increase adhesion to the roadway, tires 11.00R20 are installed. The maximum speed is 100 km / h. The length of the cargo compartment is 7560 mm. Height - 2250 mm. Width - 2430 mm.

Modifications

There are several models of this truck. Various modifications have their own technical characteristics that make it possible to use the tools for certain tasks.

MAZ-6303A3

The MAZ-6303A3-347 truck has the following characteristics:

1. Carrying capacity - 15350 kg.
2. Wheel formula - 6x4.
3. Weight - 24.7 tons.
4. Front axle load - 6700 kg, rear - 18000 kg.
5. The engine of the brand is YaMZ-6562.10.
6. The engine power is 183 kW.
7. The gearbox has 8 gears and a leaf spring suspension.
8. The volume of the fuel tank is 200 liters.
9. The machine is equipped with a small cabin.

MAZ-6303A5

The onboard truck with the MAZ-6303a5-321 hydraulic manipulator has the following parameters:

1. Dimensions - 10230x2500x3500 mm.
2. The base of the truck has dimensions of 4590/1400 mm.
3. Wheel formula - 6x4.
4. Gross weight - 24.5 tons.
5. The permissible weight of the cargo is 11550 kg.
6. Internal platform dimensions: length - 6500 mm, width - 2400 mm, height - 700 mm.
7. The loading height is 1400 mm.

MAZ-6303A8

The MAZ-6303A8-328 truck has a permissible gross weight equal to 28.7 tons. The permissible total mass in a road train is 52 tons. The permissible front axle pressure is 6700 kg. Permissible pressure on the rear axle - 22 tons. Vehicle weight - 11.7 tons. Maximum speed - 90 km / h. Carrying capacity - 17000 kg.

See " TOP-2 Soviet MAZ dump trucks and trucks of the model range

The machine is equipped with a YaMZ-6581.10 engine. The engine power is 294 kW. Gearbox - YaMZ-239. The number of gearboxes is 9. Gear ratio driving axles is 5.33. There is leaf spring suspension... The volume of the fuel tank is 300 liters. A large cabin is installed, equipped with a berth, the driver's seat is equipped with springs.

MAZ-630305

The MAZ-630305-250 log truck has a three-axle chassis. Wheel formula - 6x4. Machine weight is 24.7 t. Gross weight distribution on the front axle is 6700 kg. Weight distribution on the rear axle - 18 tons.

Specifications:

1. The mass of the equipped car is 9350 kg.
2. Diesel engine with turbocharging YaMZ-238DE2.
3. The number of cylinders is 8.
4. Engine displacement - 14860 cm³.
5. Engine power - 243 kW.
6. The torque is 1274 Nm.
7. The gear ratio is 6.59.
8. The front suspension is sprung, the rear is sprung and balanced.
9. The gearbox is 8-speed.
10. The volume of the fuel tank is 350 liters.
11. The maximum speed is 85 km / h.
12. Fuel consumption - 29.6 l / 100 km.
13. Carrying capacity - 15.2 tons.

MAZ-630308

The MAZ-630308 onboard vehicle is produced by the Minsk Automobile Plant. The truck is used to transport goods in the transit transport system as part of a road train.

Technical indicators:

1. The mass of the road train is 44 tons.
2. Vehicle weight - 24.5 tons.
3. Pressure on the front axle - 6500 kg, on the rear - 18000 kg.
4. Carrying capacity - 13.2 tons.
5. The volume of the platform is 12.7 m³.
6. Fuel consumption - 23.2 l / 100 km.

Even before the collapse of the USSR, Belarusian MAZ trucks gained a reputation as reliable, unpretentious and powerful heavy-duty vehicles. The MAZ-6303 model is no exception. The car, despite the outdated design, relatively low level of comfort and “poor” interior equipment, is still actively used in many areas of human activity - construction and cargo transportation. The “secret of success” of the machine lies in its low price, excellent maintainability, simplicity and economy in maintenance, power and reliability.

History of creation

The backstory begins in 1965. Then the first developments began to appear for the creation of three-axle trucks with increased carrying capacity.

The first prototype of the new type of trucks was embodied in the MAZ-516 model, as well as the MAZ-520 and MAZ-515 truck tractors. A little later, from the Minsk conveyor automobile plant the MAZ-514 model came down. The cars were quite promising, however, not without a large number flaws. For example, it was experimentally found that the increased carrying capacity of a car required modernization of the engine, chassis, improvement of the rear suspension, and so on.

The updated improved MAZ-516 began production in 1969. Until 1981, various modifications of this truck were produced. Models 515 and 520 never entered serial production, however, a number of developments, for example, the steering concept, smoothly "migrated" to the MZKT-6515.

Over the next 10 years, the designers of the Minsk Automobile Plant have designed multifunctional, universal and powerful trucks, as a result of which, by the beginning of the 90s of the 20th century, MAZ could boast of a whole series of successful new generation truck models. Thanks to this, the enterprise not only survived the collapse of the country, but was also able to independently establish and enter the sales markets. The plant was competitive, and the release of a new model at that time flatbed truck MAZ-6303 was another confirmation of this.

Attention! The car was designed in accordance with European quality requirements, because of this, the heavy-duty car was sold not only in the countries of the former USSR, but also in European countries.

Loading platform and wheel arrangement

The car received a 6x4 wheel arrangement, subsequently, on its basis, the MAZ-63168 (6x4) and MAZ-6317 (6x6) special vehicles were created.

As for the cargo platform of the vehicle, its design allows the vehicle to be used universally. For example, timber trucks (model MAZ-630326), as well as tractors for the transportation of full-fledged road trains, with a maximum carrying capacity of up to 67 tons, are being created on the base.

MAZ-6303 is equipped with cargo platforms curtain, awning and side types. The truck is equipped with different versions of platform-vans, based on a cargo chassis. Truck cranes with increased carrying capacity (maximum rate of 25 tons), multi-lifts, dump platforms for metal transportation, tank cars, tow trucks, log trucks and other similar equipment are being installed.

Cabin

The machines are equipped with large and small cabins. The first is installed on long-haul trucks, truck tractors, and vehicles for the transportation of goods over long distances. There are two berths in the cabin of increased capacity. The small cab is installed on special vehicles, as well as on trucks for transportation of goods over short distances.

The MAZ-6303 model has a cabover-free layout, in order to gain access to the engine, the driver needs to tilt the cab forward. The process is facilitated by the presence of a hydraulic system.

The car has a fairly roomy and spacious interior, which provides an excellent overview of the road space, the interior is not susceptible to vibrations and noise penetration. Thermal insulation is also excellent. The disadvantages of the interior of the truck include the poor quality of finishing materials, imperfect build quality.

In the standard configuration of the cabin, there are suspension seats for the driver and passenger, seat belts, main and autonomous heaters. It is easy to turn the steering wheel and press the pedals, which allows you to work on the truck for a long time without getting tired.

Attention! The design of the MAZ-6303 truck implies the presence of a heating tap under the cab, because of this, the process of turning on the heaters is rather inconvenient - the driver needs to get out of the truck, raise the cab, and unscrew the valve to allow heat to enter the cabin.

Engine and gearbox

The truck is equipped with 4-stroke 8-cylinder V-shaped power plants YaMZ-238. Depending on the engine modification, the motor power is from 170 to 400 horse power... The engines are quite economical. So, in mixed driving mode, the engine consumes 27.5 liters for every 100 kilometers diesel fuel... When driving in the city, this figure increases to 40 liters, and on the highway, decreases to 25 liters, respectively.

The engines can boast of excellent truck acceleration dynamics. So, with an activated speed limiter, MAZ-6303 can accelerate to 85 kilometers per hour, and without a limiter, up to 100 kilometers per hour. The motors are reliable, unpretentious, maintainable and comply with the EURO-3 environmental safety class.

As for the transmission of the truck, various versions of the YaMZ-238 gearboxes are installed. Gearbox modifications depend on the modification of the motor used. The car is equipped with 8-speed mechanical boxes gear shifting and forward gear synchronizers. The model is also equipped with 4-speed manual transmission modifications. Such devices are additionally equipped with a dual-range planetary range to increase torque.

Attention! The dual-band planetary range is used in the design of heavy vehicles operating in difficult road conditions - the device expands the standard capabilities of the installed gearbox, and allows you to increase the number of gears without interfering with the transmission design.

Chassis (suspension, brakes, steering)

MAZ-6303, regardless of modification, is equipped with:

1. Dry double-disc friction clutch equipped with a pneumatic drive booster to disengage the clutch;
2. The front suspension consists of two longitudinal springs and telescopic shock absorbers. Also, the mechanism provides for the presence of a stabilizer bar. The rear suspension installed on the model is spring-balanced;
3. The car is equipped with a two-stage steering gear equipped with a gear pair, an integrated distributor and a helical gear;
4. The car is equipped with pneumatic brakes, with separate drive for each wheel. The trailer or semi-trailer of the MAZ-6303 truck has a two-wire drive, the manufacturer provides for installation electronic system ABS, the parking brake is equipped with a pneumatic drive, and the rear wheel drive works in conjunction with spring electric accumulators. Design auxiliary brake consists of a compression type mechanism equipped with movable flaps in the exhaust system of the truck.

Prices

Excellent technical characteristics, reliability, maintainability and efficiency make the car quite popular not only in Russia, but also abroad. With all its positive features, the model can boast of a low cost, basic configuration a new truck will cost buyers from 1.9 million rubles.

Used cars will cost a little less - depending on the year of manufacture, technical and external condition, modification, and equipment, you can purchase for an amount from 250 thousand to 1 million rubles.

Pros and cons of MAZ-6303

Benefits:

• Low price;
• Operational reliability;
• Powerful power unit;
• High efficiency of fuel consumption;
• Compliance with European requirements for environmental safety;
• The versatility of the cargo chassis;
• Relatively comfortable interior;
• The presence of a cabin with two berths;
• Maintainability.

The disadvantages of a truck include:

• Outdated appearance;
• Non-ergonomic arrangement of the heater valve;
• Poor painting quality;
• Uncomfortable interior, use of cheap materials in the decoration and poor build quality of interior panels.

The truck has been produced since the early 90s, but it still retained its relevance, largely due to its advantages and low price. Even used cars are strong enough and can last for more than one year. The disadvantages of the car, first of all, lie in the low quality of painting, poor assembly of interior panels and the use of cheap materials in the interior design of the cab. MAZ-6303 can hardly be called a premium truck, however, it is an inexpensive, versatile, unpretentious, economical and reliable workhorse, capable of easily performing the tasks assigned to it.

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