MAZ-4370: specifications, owner reviews

2024 Author: Erin Ralphs | [email protected]. Last modified: 2024-02-19 11:42

MAZ-4307 "Zubrenok" is the first Belarusian medium-duty truck with a cabover layout, a large loading platform and a significant number of various modifications developed and produced on its basis.

Truck production

MAZ-4370 or Zubrenok is produced by the Belarusian company MAZ. The history of the enterprise dates back to 1944, when a car restoration and repair workshop was established in liberated Minsk. Gradually, the company switched to assembling trucks from car kits. In 1945, the construction of production workshops of the plant for the manufacture of heavy vehicles began. The company assembled the first MAZ-205 trucks in 1947, and two years later, conveyor production of cars was established. An important moment in the formation of the plant was the development and production of cabover trucks. In the future, the company, thanks to its own developments, not only expanded the range of cars, but also significantly increased production.

Currently, the MAZ association produces more than 80 modifications of trucks for various purposes, and also produces buses, trolleybuses, trailers andsemi-trailers.

History of the truck

The appearance of the MAZ-4370 is connected with the increased demand for medium-duty vehicles at the end of the 20th century, as well as the desire of the MAZ company to expand the production line of trucks due to the new model. Such a compact vehicle can be effectively used in urban areas and on short suburban trips for transporting small consignments of various cargoes.

In order to speed up the development and start of production at the enterprise, a truck of the same class MAN-L-2000 was chosen as a prototype, but the carrying capacity of this model was only 2.5 tons. MAZ did not consider lower carrying capacity a problem. Due to the developed main elements of the new truck, frame, suspension, bridges, she not only designed the truck in a fairly short time, but also carried out all the required testing and certification work. This made it possible to start production of the MAZ-4370 Zubrenok model in 1999.

Model design

Unlike the produced Russian medium-tonnage vehicles, the Belarusian novelty received a traditional cabover layout for MAZ. This significantly increased the size of the onboard area of the car, and according to this indicator, only KAMAZ-4308, released in 2007, could compete with the MAZ-4370 (among CIS trucks).

The next distinguishing feature of Zubrenka was a high comfortable cabin designed for 3 people. In order to improve aerodynamics, it was equipped with threespoilers and fairing.

The design of the car is based on a solid ladder-type frame with two spars in the form of a channel, as well as crossbars, which received a round tubular and U-shaped section. Thanks to the dependent type of front and rear suspension on semi-elliptical springs in combination with 17.5-inch wheels, the truck received a low platform location, which, according to the reviews of the owners of the MAZ-4370, was very comfortable when performing loading and unloading operations.

At the initial stage of production, the car was equipped with an MMZ D-245.9-540 engine with a capacity of 135 forces and a five-speed manual transmission. Subsequently, the number of power units on the MAZ-4370 increased.

Technical parameters

The main technical characteristics of the MAZ-4370 are as follows:

• engine model - MMZ D-245.9.540;
• type - diesel turbocharged;
• volume - 4, 75 l;
• number of cylinders/arrangement - 4/L-row;
• power - 136.0 l. p.;
• execution - Euro 2;
• wheel drive - rear;
• wheel formula - 4×2;
• KP type - five-speed manual;
• max speed is 90.0 km/h;
• fuel consumption (combined) - 18.1 l/100 km;
• wheelbase - 3.0 m;
• length - 6, 20 m;
• height - 0.54 m;
• width – 2.49m;
• platform execution - onboard, with the possibility of mounting an awning;
• capacity - 4.95 tons;
• gross weight - 10, 10 tons;
• front axle load –3.65T;
• rear axle load – 6.40 t;
• tire size - 8, 25R20, 235/75R17, 5
• fuel tank capacity - 130 l;
• voltage of the on-board network - 24 V.

Zubrenka engines

Besides the MMZ D-245.9.540 diesel engine, the MAZ-4370 truck is equipped with the following power units:

1. Model - D-245.30E2

• type - diesel supercharged;
• cooling - liquid;
• number of cylinders – 4;
• cylinder arrangement - in-line (L);
• volume – 4, 75 l;
• power - 156, 4 l. p.;
• compression ratio - 17, 0;
• weight – 0.50 t;
• green performance - Euro 2.

2. Model - D-245.30E3

• type - diesel supercharged;
• cooling - liquid;
• number of cylinders – 4;
• cylinder arrangement - in-line (L);
• volume – 4, 75 l;
• power - 156, 4 l. p.;
• compression ratio - 17, 0;
• weight – 0.45 t;
• green performance - Euro 3.

3. Model - DEUTZ BF4M 1013FC

• type - diesel;
• cooling - liquid;
• number of cylinders – 4;
• cylinder arrangement - in-line (L);
• working volume - 4, 80 l;
• power - 170, 0 l. p.;
• compression ratio - 16, 1;
• weight – 0.56 t;
• green performance - Euro 3.

Paired with a DEUTZ engine, a five-speedbox ZF S5-42.

Car modifications

In addition to various powertrains, the car has several wheelbases along the length:

• 3, 30m;
• 3, 35m;
• 3, 70m;
• 4, 20 m.

This number of options definitely serves as additional popularity for the truck. In addition to the standard cab, a double sleeper cab is available.

MAZ, in combination with a variety of engines and different wheelbases, produces the following modifications:

• onboard;
• side curtain;
• dump truck;
• van;
• isothermal van;
• chassis;
• tow truck;
• onboard with CMU.

A significant number of modifications, wheelbase options and cabin design significantly expanded the scope of the MAZ-4307.

Maintenance and troubleshooting

To maintain the good condition and high-quality operational parameters of any vehicle, including the characteristics of the MAZ-4370, maintenance is required in accordance with the manufacturer's regulations. The following types of necessary maintenance are installed for the Zubrenok truck:

• daily - before and after work;
• break-in - performed after 1.0 thousand run;
• TO-1 – 5.0 thousand km;
• TO-2 - 20.0 thousand km;
• seasonal - when the season of operation changes.

Depending on the operating conditions of the truck, the mileage between the first and second service could bereduced.

Among the possible problems, especially in the initial period of vehicle operation, it should be noted:

• heavy shifting due to poor clutch adjustment;
• increased heating of the rear axle due to inaccurate adjustment of the engagement gears, as well as excessive oil in the crankcase;
• uneven power steering due to the presence of air;
• drift of the machine when driving in a straight line, due to the weakening of the tightening of the spring ladders;
• low brake pressure due to leakage;
• alternator tensioner belt slippage.

Advantages and disadvantages of the car

The owners in their reviews of the MAZ-4370 highlight the following main advantages of the truck:

• affordable cost;
• comfortable cab;
• traction parameters of engines;
• economical operation;
• low loading height;
• large platform area;
• compact size.

Among the shortcomings most often noted:

• low heater power;
• frequent breakdowns of the rear axle gearbox;
• gearbox defects;
• quick wear of the clutch disc;
• breakage of springs.

Despite the presence of shortcomings, especially at the initial stage of production, due to its carrying capacity, cost and the presence of a large number of various modifications, a medium-duty truckMAZ-4370 is in stable demand. The improvements and upgrades carried out allow Zubrenok to remain the most demanded truck in its segment.