The truck MAZ 5551 dump truck began to be produced back in the days of Soviet Union in 1985. MAZ 53371 served as the main base of units and assemblies for this machine. The body of the model is made of all-metal, and the board is made with automatic opening and closure. Unloading occurs back from the tailgate. The exhaust gases of the engine serve to heat the bottom of the body, so that the transported materials do not freeze in winter time. The cab, which leans forward, is designed for two people. There are several modifications, some of which can operate at temperatures up to -60 degrees Celsius.
The car is produced at the Minsk Automobile Plant. Its direct predecessor existed during the war years. It was the MAZ 500 model. After several years of modifications, revisions and improvements, the MAZ 5551 was released. The biaxial layout gave excellent maneuverability and maneuverability. Models are actively used both in Russia and in Belarus.
Application area
The machine is actively used in the field of construction. Like its predecessors, the MAZ 5551 dump truck serves as one of the main trucks for transportation building materials. It can work with both bulk and other types of raw materials. It can be bricks, pipes, wood and other things. This technique can also be used for the removal of construction debris. capacity and maximum load vehicle makes it possible to work with sufficient volumes that are suitable for any type of construction site.
The dump truck can transport materials over medium and short distances. It is designed to work in urban environments, but good cross provided due to the need to move in difficult conditions on construction sites. The truck moves without problems countryside and other off-road conditions. Ability to work with low temperatures does not complicate its use in winter, especially since there is body heating here.
Another area of use is agriculture. There is also work with the transportation of bulk materials, such as grain and so on. Despite the fact that such machines are often included in car parks various enterprises, they can also be found in private properties. IN this case they can find applications in almost any area where they will be in demand specifications.
Advantages
Long service life in many industrial and construction areas are provided by the main advantages of the machine:
- In the domestic market, the characteristics are not much inferior to modern brands;
- It is easy to get spare parts and there are no problems with repairs;
- The car performs well when driving on bad roads;
- There are no problems during operation during low temperatures;
- Available automatic system opening and closing of the board;
- For winter use, heating is provided, which works economically on exhaust gases.
Flaws
- In comparison with Western counterparts, the car is less comfortable to drive, and everything inside the cab is not comfortably arranged;
- Capacity is sometimes not enough for more serious work in the construction industry.
Specifications
The technical characteristics of the MAZ 5551 dump truck are the main data that determine the scope of its application. The main characteristics of this model for use are as follows:
| Characteristics | Meaning |
|---|---|
| Maximum load capacity of the model, kg | 8500 |
| Curb weight, kg | 7580 |
| It includes: | 3450 |
| Total weight, kg | 16230 |
| The total weight includes: | 10250 |
| Max speed cars, km/h | 83 |
| How long does it take the car to accelerate to 60 km/h, s | 50 |
| The maximum rise that the car can overcome,% | 25 |
| Run-out of the car from 50 km/h, meters | 85 |
| Fuel consumption of MAZ 5551 per 100 km at a speed of 60 km/h, liters | 23,21 |
| Turning radius characteristics: | |
| Outer wheel, m | 7,9 |
| Overall, m | 8,6 |
| Total gear ratio of drive axle | 7,79 |
| Volume cargo body car, m | 5,5 |
| Approximate lifting time of a fully loaded body, s | 15 |
| Approximate lowering time of the empty body, s | 10 |
Device
The YaMZ236 engine is installed on MAZ 5551 dump trucks. IN standard equipment engine produces 180 Horse power, which equals 132 kW of power. The maximum torque is 667 Nm. In the latest modifications, the YaMZ636 engine is installed, the power of which is already 230 horsepower. According to international standards, the machine meets the Euro3 environmental class. Some modern modifications have a carrying capacity of 10 tons higher than the standard ones. Here a five-speed mechanical box gears. The engine is not supercharged, which gives it high reliability and good power.
There is no berth in the cabin, but in addition to the driver, two more passengers can be accommodated. Handrails and stands provide easy and quick access to the cab from the street. The ergonomics of the arrangement of objects inside is not the best here. The steering wheel can be adjusted in height and angle. The seat moves back and forth on a special slide, but sometimes it is difficult to find a comfortable position even under such conditions. special attention deserves ventilation and lighting in the cockpit. They are made at a high modern level.
Manufacturer
The Minsk Automobile Plant is engaged in the release of the car. On this moment this enterprise is the managing holding of BelAvtoMaz. The main specialization of the plant is the production of heavy trucks, trolleybuses and cars. Products are supplied to 45 countries of near and far abroad. According to 2016 data, this is the most unprofitable enterprise in the country.
Conclusion
Among the many domestic cars that were produced back in Soviet times, this dump truck is one of the most modern, since the beginning of its release fell just at the beginning of the collapse of the Soviet Union. At the moment, its production continues in Minsk and is supplied to neighboring countries. When saving modern characteristics the car has a relatively low cost, which favorably distinguishes it from competitors. Especially popular are specialized modifications of the model, designed for difficult operating conditions.
The MAZ-5551 dump truck, whose production started more than a quarter of a century ago, in 1985, cannot be called a new car. However, even today this dump truck remains one of the most popular truck models found in Russia.
It is difficult to find at least one construction site in the country, wherever these maneuverable dump trucks work. The popularity of the "Minsk citizen" is also facilitated by the fact that he has practically no competitors among domestic cars. ZiL-4520 is also present on the market in the same segment, however, these are 6x4 dump trucks, more suitable for transporting cargo on long distance, but the MAZ-5551 is optimal for working on the "short arm", which allows it to be used on urban construction sites.
Interior, exterior and ergonomics
Let us consider in more detail what the Minsk “long-liver” is. In the version without bed the cabin of the MAZ is much more spacious than the KamAZ. The well-positioned steps and handrails make it easy to climb into the cab. But the ergonomics of the cabin leaves much to be desired.
Although steering column adjustable in two planes, and the seat cushion moves on a skid, a comfortable driver's position cannot be achieved. Visibility does not suffer, but discomfort leads to increased driver fatigue, especially on long routes. Doesn't add comfort and is too big steering wheel, for the rotation of which the driver of small stature has to constantly lean forward.
The dashboard of the truck, in general, is convenient and quite informative. However, even here it was not without a “fly in the ointment”. We are talking about insufficient brightness of the light indication, which is poorly visible in the daytime.
Nevertheless, successful decisions outweigh the mistakes made in the design of the cabin. So, the layout of the fuse and relay box is very convenient. It is located behind the dashboard on the passenger seat side under an easy-to-open hatch. Comfort in the cab is also provided by a ventilation hatch on the roof, a ceiling lamp for interior lighting of the cab and efficient system heating.
In the cabin, unlike KamAZ, there is only one passenger seat. Between the driver's and passenger seats is a convenient shelf for storing documents, bottles and other small items. A cigarette holder is also located here, but for some reason the developers did not provide for ashtrays and a cigarette lighter. Large rear-view mirrors provide the driver with excellent visibility and help to increase the safety of driving a dump truck.
The driver's seat was installed on air suspension
The adjustable driver's seat is equipped with a suspension system. However, the cabin of a Minsk truck cannot be called truly comfortable, since the cab attachments to the frame are not equipped with a shock absorption system. And the passenger seat is generally devoid of comfort, because it is not adjustable, and is simply rigidly attached to the cabin floor.
Raising the cab to gain access to the power unit is carried out using a hydraulic drive. The hydraulic drive has an important advantage in comparison with the spring cab lift system, since it eliminates the possibility of unintentional tilting of the cab in the event of a lock failure. Hydraulic actuators, which are equipped with domestic cars, and MAZ still cannot be attributed to foreign cars, almost all are identical, but the designers did not come up with cunning fixation systems for the tilted cab, insuring it with an ordinary steel cable. As they say, cheap and cheerful.
Raising the cab is only allowed when the radiator grille is open, and so that the driver or mechanic does not forget about this operation, the assembly that activates the lift is fixed under the grille. And the towing pin is removed only after the radiator grille is tilted.
Among the shortcomings, we note the low location of the inner handle for opening the door, which is why it is extremely inconvenient to open the door from the inside.
Technical part
Now let's talk about driving performance dump truck. Since the copy we are considering is new, with a mileage of only 900 kilometers, some complaints about individual units may be temporary. For example, a shifter gearbox has good selectivity but very high shift effort.
The gearshift process itself is devoid of smoothness. But this is definitely a temporary drawback: after running in and grinding in the parts, the operation of the unit acquires proper smoothness. At least shifting from low to high with a double clutch release, and from high to low, with regassing and double squeeze happens without precisely and gently. YaMZ engine 236 while working without strain downshift. According to the plant, the YaMZ-6563.10 eco-standard Euro-3 has been installed on the dump truck.
established Yaroslavl V-shaped motor YaMZ-236NE2-30 EURO-2
By the way, the Yaroslavl engine without a turbocharging system is an excellent unit, verified time. There are practically no complaints about the engine. But the Yaroslavl box causes a lot of criticism. With a full load of 10 tons, the truck is very difficult to move in first gear. Due to the short first gear, the accelerating dynamics are very slow. But on flat road truck with gross weight, exceeding 17 tons, starts off without problems from the second gear.
It is better to wrap the pneumatic tubes immediately - otherwise they will rub against the frame
A dump truck with a full load is capable of speeds up to 90 km / h. This is the maximum speed, but even in fifth gear MAZ keeps 40 km / h. The dump truck is also distinguished by its briskness, the power steering with the engine running works smoothly.
The maneuverability of the dump truck is at a height - in two steps it is able to turn around even at the very narrow road. Stabilizer roll stability, installed behind the rear axle, provides high stability to a heavily loaded machine when cornering.
Pneumatic brakes are quite effective, the only drawback is the long air injection into the system. As you can see, the compressor power is not high enough. Loading and unloading of ballast during the tests took place in the normal mode, without problems, just like on other dump trucks.
But with the front right wheel, the operators, I must admit, were not lucky. The factory workers fixed it on the hub with a slight misalignment, which is very strongly felt on the steering wheel. The weight of the wheel is almost equal to a centner, in principle, it can weigh more, if only distortions are not allowed during its installation. You involuntarily recall that in the USA discless wheels were also in fashion at one time, but now they are practically not found there.
General impression
But in general, the car left a good impression. We got acquainted with the car in the most economical version of the dump truck, which is sold at the lowest price. Summing up, we can come to the conclusion that Minsk automakers produce high-quality, reliable equipment.
When developing this model, the shortcomings that were present in previous models were taken into account and finalized. So, in the MAZ-5551, the designers finally said goodbye to the gearshift lever in the form of scrap, which is present in all previous models.
Yes, and transmissions are no longer required, as before, to be caught throughout the cabin space. At the same time, the gearshift scheme remained the same.
The drum handbrake on the MAZ - 5551 was replaced by brake chambers with spring energy accumulators. True, the chambers are not equipped with bolts for forced release in the absence of air in the system.
But, such shortcomings should be treated with understanding, because the cost of a car is much lower than similar foreign-made models, stuffed with all sorts of additional components and systems.
Of course, when testing the dump truck, a lot of elements were found that require “hands on”, but there are much fewer of them than on any of the cars produced at the CIS car factories. Thus, the MAZ-5551 dump truck proves that it was not in vain that he inherited the nickname "hard worker", deserved by his predecessor MAZ-503 back in the 60s.
A bit of history
The construction of an automobile plant in Minsk, drained of blood from the Nazi occupation, began in 1944. First, the plant repaired cars intended for the needs of the front, and after the end of the Great Patriotic War, in 1947, in the experimental workshop of MAZ-a, the assembly of the first trucks of the YaAZ brand was carried out.
In February 1948, the first production model of the MAZ 200A truck went to Moscow for testing and approval at the USSR Ministry of Automotive Industry. It was this car that marked the beginning of the production of a whole generation of new Soviet heavy two-axle trucks. The emblem of the Minsk Automobile Plant, the Bialowieza bison, perfectly personified the mighty strength and endurance of Belarusian hard workers.
Truck design has been constantly improved. By the beginning of the 1960s, bonnet-type trucks with two-stroke engines had given way to vehicles of their own design MAZ-500 with a four-stroke power unit YaMZ-236, located under the cab. Among the many modifications of this truck, there was also a MAZ-503 dump truck, which is the predecessor of the MAZ-5537 model, on the basis of which the MAZ-5551 was developed.
MAZ-5551 on trials
IN new version truck cardinal changes cabin has undergone The design of headlights, radiator grilles has been changed, the shape of the cab has acquired clear edges instead of rounded shapes. Instead of a bifurcated windshield, a curved panoramic windshield was installed on the truck. Roof spoiler installed new design. The changes also affected the interior design of the driver's cab, new levers and a steering wheel appeared.
The lifting mechanism of the cabin is actuated using the “mounting”, with its help the lock that fixes the cabin is also opened.
Attitude to constructive solutions applied in the development of the truck can be twofold. On the one hand, most of the applied solutions can be called an anachronism, on the other hand, time-tested solutions. Having tested a dump truck that just rolled off the assembly line, we are more inclined towards the second approach. However, some components and structural elements certainly need to be updated and brought into line with modern requirements.
The country in which the first MAZ-5551 dump truck rolled off the assembly line many years ago is no longer on the world map. Russian Federation and the Republic of Belarus are sovereign, independent states. Unfortunately, many of the famous factories created during the years of the existence of the Soviet Union fell into decay and ceased to exist. The Minsk Automobile Plant also experienced difficult times during the transition period, but thanks to flexible management and effective work of the entire workforce, the enterprise survived and became one of the leading manufacturers automotive technology in the post-Soviet space.
Many people remember that in Soviet times, almost no construction was carried out without the participation of MAZ-5551. In addition to the construction industry, this model was often used in various industries, which include urban and agriculture, construction and repair highways, industrial use. Basically, it transports various bulk materials. Despite the emergence of numerous new products in the truck industry, it was not possible to oust this hard worker from the market. This is due to the constant modernization and introduction of modern technologies into production, which still produces this model.
The production of MAZ-5551 began in 1985 and has been going on for more than 30 years. Its old-style design, and in particular the front end, did not prevent it from remaining one of the most sought-after trucks in the domestic market. This unit belongs to cargo class eight tons.
Among all car models produced by the Minsk Automobile Plant, MAZ-5551 is the most old model. MAZ-5337 served as a prototype for its creation. For the entire time of production, for the MAZ in question, there were no worthy competitors. Of the few, some models of KamAZ and ZIL can be distinguished, but they, after all, have a 6 × 4 wheelbase, which leads to the transportation of goods on the “long arm”. Wheelbase our sprinter, which is designed to work at short distances, is 4x2, which historically led to its use on urban construction sites.
Design and construction
At the beginning of mass production, the appearance of the car was not given special significance and it was rather poor. In particular, the cab of the car did not have a hood. A strong bumper was installed in the front large sizes, huge headlights and a mediocre grille. Main element cars - body. Here he rose and leaned back and had one opening side.
In 1998, this model was restyled. A more modern cabin was installed on the car, its capacity has become larger. Now the cab could be tilted forward for technical inspection and repair of the units of the unit under it. side panel got a more user-friendly design with more functionality. The driver's seat is installed in a spring type, with the ability to move forward and backward. Mirrors are electrically heated.
After restyling, the old bumper was replaced with a more streamlined one. In addition to the headlights, which were slightly modified, direction indicators were installed on it. The grille has been revised and its size has become larger, which increases engine cooling in hot weather. Windshield older models had a separate one, after modification it became panoramic, with a wide view. A spoiler appeared on the roof of the car.
Design and equipment
The design of the MAZ-5551 is of high quality, but not very convenient for operation. As evidence of this, the cabin is rigidly attached to the frame without the use of a spring softener. To this you can add the steering wheel and its column. It takes a lot of effort to drive a car. The body is made of all-metal and, as mentioned above, has rear unloading. For a comfortable stay in the cockpit in winter period under the bottom is a heating system that runs on recycled exhaust. When driving in a laden state, it is not difficult to make turns, which is facilitated by a stabilizer installed behind the rear axle.
The dimensions of the truck are: length - 5.99 m, width - 2.5 m and height - 2.3 m. The braking system is quite reliable and simple, but the disadvantage is its long pumping. The basis of the braking system of the front and rear wheels are drums on pneumatic control. Front and rear suspension made in the form of springs. A transmission in the form of a five-speed manual gearbox YaMZ-236P is installed on the basic version of the car. With the modernization of the model and an increase in carrying capacity up to 10 tons, they began to install the YaMZ-2361 box. At present, MAZ-5551 is more advanced and modern truck, which is often fitted with a Western-made transmission.
The MAZ-5551 was equipped with a V-6 YaMZ-236M2 diesel engine manufactured at a motor plant in Yaroslavl. Later, in the process of modernization, it was replaced by modern engine YaMZ-6563.10. Such a motor meets the European environmental requirements and complies with the Euro-3 class. This unit consumes about 25 liters of fuel per 100 km, if you drive at average speed 60 km/h Motor power is 180 hp. The fuel tank is designed for 200 liters.
Invest in this model dump truck, will be the best solution for its further use in construction, various farming, etc. When transporting various bulk materials, there will be no unforeseen problems on the road and fuel consumption will not hit your wallet.
Photos
car video
Specifications
| Layout | Front-engined, rear-wheel drive |
| Wheel formula | 4x2 |
| Number of seats | 3 |
| Dimensions, mm | |
| Length | 5990 |
| Width | 2500 |
| Height | 2925 |
| Wheelbase | 3950 |
| Clearance | 270 |
| Weight, kg | |
| curb | 7580 |
| Complete | 17600 |
| Load capacity, kg | 10000 |
| Engine | |
| Model | YaMZ-236M2, YaMZ-6563.10 |
| Type | Diesel |
| Number of cylinders | V6 |
| Volume, cm 3 | 11 150 |
| Power, hp | 180 - 230 |
| Transmission | Mechanical, 5-speed |
| brakes | |
| Front | drum |
| Rear | drum |
| Suspension | |
| Front | Spring |
| rear | Spring |
| Maximum speed, km/h | 83 |
| Fuel consumption, l/100km | |
| Mixed | 22-25 |
| Volume fuel tank, l | 200 |
Truck MAZ-5551 is produced by Minsk car factory for three decades, since 1985. Despite the far from innovative design (its immediate ancestor, the MAZ-503, first went on the road back in 1958), the -5551 remains one of the most popular eight-ton trucks in the Russian open spaces. Read about Kamaz 500 series in
Description and scope
Unlike long-range counterparts, for example, ZIL-4520, more compact and maneuverable MAZ-5551 easy to move in urban areas. Most often, it can be found working at a city construction site. The main purpose of this truck is the transportation of bulk materials, and on a short arm, which is determined by its 4x2 drive.
Look at the video:
Other scopes of MAZ-5551:
- Agriculture
- industry
- urban economy and road construction
Body Features
IN standard modification MAZ-5551 is equipped with a one-piece body with rear unloading. Tailgate tilting and body tipping have remote control and happen automatically.
There are two seats in the cockpit, as can be seen in the photo, there is a space for storing things and documents between the passenger and driver seats. driver's seat equipped with springs and moves in the direction back and forth, but the steering column can be adjusted in two directions.
On this, and even side mirrors with electric heating, comfort in a standard cab ends, there is not even depreciation in the places of its attachment.
To access power nodes cab tilts forward with hydraulic drive. Raising the cab is only possible with the radiator grille open, and the mechanism actuating device is located behind the grille itself. Fixation in the lowered form is carried out by a conventional steel cable.
The bottom of the truck is heated by supplying exhaust gases. This design greatly facilitates the use of the dump truck in the cold season. For extreme conditions and temperatures down to -60°C, the MAZ-5551 01 HL model was developed.
The transmission of the basic version is a 5-speed manual YaMZ-236P, on later models with a load capacity of up to 10 tons, YaMZ-2361 was installed. Now on new cars there are Western-made boxes.
stands behind anti-roll bar, which significantly reduces the roll of the truck in corners. Front and rear brakes- drum with pneumatic control.
Often when passing a technical inspection, the question arises of where the chassis number is located. The number on the MAZ-5551 frame is in the traditional Soviet trucks place - on the right rear, on the front of the frame (usually in the area rear axle or with a slight offset).
MAZ 5551 engine and fuel consumption
The MAZ-5551 engine is a diesel V6 (like that). Up to recent years all MAZ-5551 dump trucks were equipped with a 180-horsepower YaMZ-236M2 Yaroslavsky engine plant. In new modifications, it has been replaced by YaMZ-6563.10 with environmental class Euro-3, and on some models - on Cummins engines with Euro-4 class and turbocharging.
Despite the appearance of kits with imported engine, on driver forums, units from YaMZ are still advised for their reliability and ease of maintenance.
MAZ-5551 features low fuel consumption per 100 km for your class. Consumption is about 23 liters at a speed of 60 km / h and a load of approximately 85% of the maximum. For comparison, the model has a fuel consumption of 30-35l / 100km.
Specifications
Overall dimensions, mm
- length - 5990 (with tilted cab - 7850)
- width - 2500 mm (in models with unloading on 3 sides - 3450 with a fully tilted body)
- height - 2925 mm
- with the body folded back - 4850
- when unloading sideways - 3850
- ground clearance - 270 (minimum, in the area of the front axle)
Device motor parameters
- Volume - 11150 cm³ (YaMZ-236)
- Power - 180 hp
- Torque - 667 Nm
- Maximum speed - 83 km / h (some models can be up to 90 km / h)
Weight MAZ-5551 in standard modification, kg
- curb - 7580, incl.
- on the front axle - 4130
- on rear axle - 3450
- full - 16 230, incl.
- on the front axle - 5980
- on the rear axle - 10 250
Carrying capacity and body capacity MAZ-5551
- load capacity - 8500 kg
- body volume - 5.4 m³, while
Dimensions and dimensions of the body
MAZ-5551 dimensions with such a volume, the platforms are 3800 x 2269 x 630 mm.
For comparison, we suggest that you familiarize yourself with.
Depending on the modification, the carrying capacity can be up to 10.2 tons (comparable to the carrying capacity), the volume of the MAZ-5551 body can be up to 12.5 m³ (15.5 with raised sides).
Wheels and tires of the tractor
- wheel formula - 4x2maximum angle of inclination of the roadway - 25 degrees
- turning radius - 7.9 m (overall - 8.6 m)
Tires - 12.00 R20, it is also possible to install 12.0-20 or 11.00 R20
The tire pressure of the MAZ-5551 will depend on the model of the tires themselves and the truck. For example, for a dump truck with a load capacity of 10 tons and tires 12.00 R20 - 7.1 on the front and 6.9 kgf / cm2 on the rear axle.
Load platform drive
The body lifting device MAZ-5551 is located under the platform. The tipping mechanism, like most modern dump trucks, is hydraulic with pneumatic control.
Telescopic variable displacement hydraulic cylinder consists of three sequentially retractable links - this design allows you to develop sufficient working forces with a small weight and size when folded. Its main disadvantage is the significant complexity, as well as the risk of clogging tightly fitting links.
To improve the safety of unloading, a safety device is provided in the control valve of the hydraulic cylinder. It does not allow the platform to be fully lifted when overloaded with more than 1.5 tons.
tailgate trunnions are controlled by a pneumatic cylinder that is triggered when the handle of the device is brought to the “Lift” position.
clutch adjustment
The MAZ-5551 is equipped with a traditional powerful trucks two-disk friction clutch . The elements of this assembly are subject to wear due to significant overloads during operation and require periodic maintenance.
Clutch adjustment MAZ-5551 required, for example, in the following cases:
- clutch slip at high rpm
- rattle during gear shift
- Clutch doesn't fully disengage
There are three main stages:
1.Gap setting 1 mm between the adjusting screws and the middle driving disc is made as follows:
- remove the manhole covers to expose the clutch and flywheel,
- with the clutch engaged, move the gearshift lever to neutral,
- unscrew the lock nuts and screw all the adjusting screws into the middle drive disk until it stops, the flywheel must be turned for this,
- loosen the screws 1 turn and tighten the locknuts with a little force.
Due to this adjustment, the required distances between the discs and the friction surface of the flywheel are ensured.
2. Providing a gap of 3.3 ... 3.7 mm between the nut and the back cover of the valve. To adjust, loosen the locknut and set the gap to the desired value by tightening the adjusting nut.
3. Pedal free play setting. The standard value is 34-43 mm (measured with a ruler with an empty pneumatic system).
User manual
Dashboard and controls
The truck is started by turning the key in the lock located on the bottom of the steering column.
Under the left hand is the turn signal switch and low / high beam headlights. The direction indicators switch in the horizontal plane. Permanent or short-term activation is possible. The headlights are controlled in a vertical plane. When you press the handle from the end, an audible signal is activated.
To the right of the steering column is the wiper and washer switch.
Speedometer, tachometer and combined instrument p showing fuel level, coolant temperature, oil pressure and voltage are on dashboard in front of the driver.
There are also control lamps and switches for lighting devices, as well as a button for disabling the cross-axle differential and ABS control lamps (if the truck is equipped with this stabilization system).
Nearby on the instrument panel are signal lamps:
- coolant temperature (lights up at a temperature of 105±5°С),
- emergency oil pressure,
- fuel level (lights up when the fuel tank is 16-20% full and below),
- air pressure in the brake system,
- pollution oil filter and others.
To warm up the engine or inflate tires, press the fuel pedal, latch it and release it. The engine should be warmed up at minimum speed with a gradual increase to medium. You can start moving only when the coolant is heated to at least 40 ° C.
Do not use constant fuel supply while driving!
The parking brake is activated by bringing the lever to the rear position. When you return to the forward position, it turns off. In intermediate positions, an additional brake is connected.
Gearbox YaMZ-236P - five-speed with synchronizers in 2-3 and 4-5 gears. Gear shifting occurs as follows:
To raise the platform, turn the control valve to the “lift” position. Other provisions: stop, descent and transport.
When starting on a slippery surface, passing difficult sections of the road differential lock must be engaged. You need to do this on parked car or at speeds up to 10 km/h.
Entering a corner with a locked differential is dangerous. This reduces control and leads to increased wear power drive! When the differential is locked, the corresponding icon on the dashboard lights up orange.
Safety
Working with a dump truck is associated with the risk of injury and accidents. To reduce these risks and the likelihood of breakdowns, a number of safety rules should be observed. Here are some of them.
- It is forbidden to stand in front of the cab when lifting and lowering, as well as driving without fixing the cab with a cable and with the tilt mechanism open.
- Do not adjust the driver's seat while driving.
- It is forbidden to drive with a raised platform and lowering a laden platform.
Detailed instructions for safe work and contains the instruction manual MAZ-5551. In the same place, in addition to a detailed description of the design and components of the dump truck, you can find requirements for maintenance and basic troubleshooting tips.
Due to the popularity of this car, there are also many repair manuals on sale, and buying spare parts will not cause any difficulty.
Modifications and prices
MAZ-5551 is available in a variety of trim levels, differing from each other in carrying capacity, unloading capabilities, platform volume. This allows you to choose a machine for any household or industrial needs. Popular models include:
- MAZ-5551-020- an old modification with an engine of 180 hp, but with a load capacity increased to 10 tons.
- MAZ-5551 A2-320 – new model With higher load capacity, similar to the standard modification, it has unloading only back. Engine - 230 hp from YaMZ.
- MAZ 5551 A3-4327- model for transporting bulk materials or agricultural products with a large welded body (volume 12.5 m³) and unloading on three sides. The body has folding boards that gives the chance of loading from two parties. MAZ 5551 "farmer" has a carrying capacity of 9.2 tons
- MAZ-5551 A2-325- a dump truck for transporting goods as part of a road train, can work with a trailer. Similarly, MAZ-5551 A3-4327 has the possibility of three-way unloading, but with a body of 5.5 m³. Can carry up to 9.7 tons of cargo.
- Tractor also available MAZ-5551 A2-340 with semi-automatic hitch having two degrees of freedom. Designed for picking special equipment and work in public utilities, as a tow truck, etc.
The spread of prices for used cars with a 230 hp engine. ranges from 400 to 900 thousand rubles, depending on the condition and year of manufacture. For less money, from 150 to 300 thousand, you can buy a car with a 180-horsepower engine, usually such cars require more or less extensive repairs before the start of operation of the MAZ-5551.
Price for a new dump truck modern modifications- about 1 million 300 thousand rubles. This is slightly less than the price of
For many years, MAZ-5551 has deservedly remained in demand in the territory former USSR. His first models were inferior in functionality, however, since the late 90s, new modifications have become safer and more reliable.
This immediately received a response in the market. Among the advantages of MAZ-5551:
- suitability for any climatic conditions and road conditions
- maneuverability and controllability, ease of turn, which is especially important in the city
- low fuel consumption of the MAZ-5551 makes the dump truck profitable in operation
- fast payback even at a relatively high price
All this is done by the MAZ-5551 dump truck, the technical characteristics and price of which meet the needs of most enterprises, great choice for work. well and people's love for MAZ-5551 is also expressed in 1:43 models, which can be used to track changes appearance and development of dump truck modifications.
On our website you will find a description of another dump truck -
In the vastness of the big Soviet country MAZ-5551 participated in almost every construction site and other areas of the national economy.
The USSR no longer exists, and this dump truck continues to be produced and modernized in the already independent powers.
The model is assembled at the MAZ automobile plant in Minsk.
What makes this truck so popular and in demand already so for a long time despite the abundance foreign analogues and competitors?
History of development
The Belarusian "hard worker", as he is called, began his life in the war years after the liberation of Minsk.
The emblem of the brand was the Bialowieza bison. With the development of production, the MAZ-500 was created - the main progenitor of the modern MAZ-5551. It happened in the late 60s.
The dump truck has become own development Minsk designers. It was aggregated with the YaMZ-236 engine, which was already a four-stroke.
After a series of modifications and improvements in 1985, she entered mass production one of the versions is the MAZ-5551 dump truck. It is the most common in Russia.
An important advantage of the "Belarusian" is its agility and maneuverability due to the truck's small wheelbase and two-axle layout.
Therefore, in urban conditions, it fits perfectly even in small construction sites and U-turns.
Description of the base model dump truck and its modification 020
The only difference between modification 020 is the increased volume of the loading part due to a change in the initial height of the sides. The rest of the characteristics are identical.
Engine
The heart of this truck is a diesel 6-cylinder V-twin engine.
YaMZ-236M2 (Yaroslavl) copes with its duties perfectly, working out the loads without tears and complaints.
Torque of 667 Nm and 180 hp. With. more than enough to pull a loaded dump truck out of difficult situations.
IN latest versions the factory put YaMZ-6563.10, YaMZ-6581.10 (shown in the photo on the left) or Deutz BF4M1013FC.
According to the technical specifications, the power of these units is higher than that of the older model. In addition, MAZ keeps up with the times, and the latest engines meet the Euro 3 standard, which greatly expands the possibilities of their application.
Transmission and drive
The MAZ-5551 dump truck is equipped with a 5-speed manual transmission. Its technical characteristics cannot be called ideal.
Under heavy loads, the first gear is too short, and on unstable ground it is very difficult to move the truck.
But on a flat road, the engine and transmission match perfectly and move a loaded truck with ease. The maximum speed is 90 km/h. The rear axle is leading, corresponding to the type of drive 4x2.
However, a major improvement in gear shifting has been constructive change shift mechanism from lever to box. This made it possible to significantly shorten the lever itself.
All innovations have made life easier for the driver, because earlier, in order to "catch" desired gear, the crowbar-like lever had to be “pulled” throughout the cabin, but now this process has become easy and pleasant.
load capacity
Reliable power steering does its job well. Thanks to the anti-roll bar, the car feels confident in corners, especially when fully loaded.
Another advantage are pneumatic brakes. They are very reliable and time-tested, such important element safety is made by the manufacturer on top.
| Specifications | MAZ-5551 | MAZ-5551-020 |
| Cargo indicators | ||
| Load capacity, kg | 10 000 | 10 000 |
| Loading platform length, mm | 3 860 | |
| Loading platform width, mm | 2 265 | |
| Board height, mm | 630 | |
| Curb weight of the truck, kg | 7 470 | 7 820 |
| Gross weight, kg | 17 620 | 17 820 |
| Maximum front axle load, kg | 6 120 | 6 320 |
| Maximum loading of the rear axle, kg | 11 500 | 11 500 |
| Wheel diameter | R20 | R20 |
| Performance indicators | ||
| body type | dump truck | dump truck |
| Cabin seats | 3 | 3 |
| Tank volume, l | 200 | 200 |
| Turning radius, m | 4,3 | 4,3 |
| Truck length, mm | 5 990 | 5 990 |
| Truck width, mm | 2 500 | 2 500 |
| Truck height, mm | 2 925 | 2 925 |
| Wheel base, mm | 3 300 | 3 300 |
| Clearance, mm | 270 | 270 |
| Suspension | ||
| Front | Spring | Spring |
| rear | Spring | Spring |
| brakes | ||
| Front | drums | drums |
| Rear | drums | drums |
Convenience and comfort
What did the designers do for ergonomics and convenience of the driver and passengers in the MAZ-5551?
Unlike previous version nevertheless, some pleasant changes were made to the design and arrangement of controls, the driver's seat and the dashboard, which, of course, added comfort and ease of use.
The cabin is spacious and comfortable. Without a bed, the driver and two passengers are easily accommodated here.
Cab access is easy thanks to properly positioned handrails and steps. The ergonomics of the arrangement of the cabin elements can hardly be boasted of.
The steering wheel is adjustable both in height and angle of inclination. The seat moves on sleds. But it is still difficult for the driver to find a comfortable position for himself.
This leads to rapid fatigue and negatively affects the concentration and quality of his work.
The steering wheel is too big, and in order to turn it, a short driver needs to constantly move towards it with his body forward, which can hardly be called convenience.
However, thanks to the large side mirrors and the position of the driver, visibility remains at its best.
The instrument panel is quite informative, but due to the weak brightness of the light indication of some indicators individual elements hard to see during the day.
But still, the Belarusian creators tried in many ways to transform the cabin and interior space. And they did it.
The location of the safety box was successful - behind the instrument panel near the passenger seat, access to it is not difficult.
The next indicator of comfort can be called good and efficient heating, which even in severe frosts copes with its function.
Lighting and ventilation of the cabin are made at a high level.
Between the driver and the passenger there is a special compartment in which you can put, for example, documents, a bottle of water and other little things.
There is also a cigarette holder here, but for some reason neither the cigarette lighter nor the ashtray were provided by the developers of this car.
The sprung driver's seat compensates for the lack of a cab suspension system that is directly attached to the frame. But the passenger seat is rigidly attached to the floor and is devoid of any adjustments.
It is inconvenient to open the doors from the inside due to the low location of the opening lever.
To overturn the cab, the MAZ designers took into account the shortcomings of the spring mechanism, which could create a danger due to spontaneous snapping and tilting, and equipped it with a hydraulic drive.
It is thanks to such a system that the danger inherent in a spring lock is cut off. For domestic market trucks, all hydraulic drives are interchangeable.
MAZ can also be called domestic, since it was originally made in one big country- THE USSR. The fixing system is very simple - a steel cable is attached to the frame and any point on the bottom of the cab.
Although not aesthetically pleasing, it is cheap, reliable and practical. The cab lift control is located under the radiator grille.
This arrangement is due to the fact that the driver remembers that it is impossible to raise the cab without an open grille.
The quality of the body metal and the elements themselves are not as reliable as we would like, but this does not prevent the car from being used as a tractor.
The handbrake on the MAZ-5551 is already a modern model with spring-type energy accumulators, has good technical characteristics.
A significant miscalculation of the system, according to experts, is the lack of bolts in the chambers, with which you can forcibly release the brake pads.
Varieties
Often there are different versions of the MAZ-5551, such as 020 with an increased load volume.
MAZ-5551-020R is equipped with an even larger loading surface and volume.
MAZ-555102 has three configurations - 220, 223, 225. The series is equipped with engines of 230 hp. With.
Model 225 is equipped with a three-way dump truck and the ability to articulate into a road train. The load capacity is 9,500 kg, the 220th and 223rd versions are 10,200 and 10,100 kg, respectively.
MAZ-5551W3-425-000 (E-4) and MAZ-5551R7-425-000 (E-4) are equipped with the most modern and technologically advanced engines, which meet environmental Euro standards 4 and have a capacity of 245 and 250 hp. With. respectively.
Optionally equipped with air conditioning, engine heater, interior heater, extension boards, awning, electro-pneumo-hydraulic outlets for the trailer, rear bumpers and side railing.
What are the benefits
In conclusion of the review of the MAZ-5551 car, one can note the persistence and desire of Belarusians to keep up with the times and thereby stay afloat in the competition with branded imported brands.
During the crisis in the post-Soviet era, many auto enterprises closed and ceased to exist, but MAZ survived and developed production to world standards, now competing with the rest.
Of course, when listing the main miscalculations and shortcomings of the MAZ-5551, we must not forget that its price is many times lower than imported ones, which are full of various technological equipment and capabilities.
Important! For example, the MAZ-5551 A2-325 model of 2013 can be purchased for 760,000 rubles.
Millions of drivers in the CIS countries perceive MAZ as a very true friend who will bring them home both in the heat and in the cold, despite their own, perhaps insufficient comfort and convenience. He is rightfully awarded the popular nickname "hard worker".
