Technical characteristics of the GAZ-SAZ-3507 dump truck and its main modifications

The 4th generation GAZ SAZ 3507 dump truck is designed for moving in space and mechanized unloading of dry cargo. The car moves along public roads with hard surfaces. It is allowed to drive onto unpaved roads provided that the vehicle has normal cross-country ability. The 3507 dump truck was built on the basis of another creation of the Gorky Automobile Plant, which has stood the test of time - GAZ 3307.

This is what the Gas SAZ 3507 truck looks like

GAZ-SAZ-35071: design features :: SYL.ru

The production program of the GAZ plant has always included medium-duty trucks. The company produced them in the form of a full-fledged onboard version or in the form of a chassis, which was supplied to other enterprises to be equipped with various superstructures.

Dump truck on a new chassis

For many years in a row, the specialized Saransk dump truck plant was engaged in the production of dump trucks on the chassis of Gorky trucks. SAZ products were widely used in agriculture and public services.

In the second half of the 80s, the Gorky Automobile Plant mastered the production of a new basic GAZ 3307 truck with a gasoline engine. In 1994, production of a diesel version of the truck with index 3309 began. Both types of chassis are supplied to Saransk, where dump trucks with three-way unloading are assembled on them. The diesel version with a carrying capacity of 4000 kg is designated GAZ SAZ 35071.

Dump chassis use a frame shortened by 152 mm at the rear. There is no towing device on the rear cross member, but there are hooks on the side members. Another difference is the displacement of the spare wheel bracket closer to the rear axle.

With Gorky diesel engine

In its original form, the base chassis 3309 was equipped with a four-cylinder supercharged diesel engine GAZ 5441. The forced air-cooled engine developed power up to 116 hp. With. Externally, a diesel truck can be distinguished by a high pipe for air intake into the engine, located on the left side of the cab. The characteristics of the GAZ SAZ 35071 made it possible to very quickly displace less economical gasoline cars.

Tractor engine

But in mid-1997, production of 5441 series motors was suddenly declared unprofitable and suspended indefinitely. ZMZ gasoline engines were returned to equip the trucks. But soon the diesel came back, only now it was a four-cylinder MMZ D245.7, produced by a motor plant in Minsk.

Engines of this family are installed on common MTZ tractors. The automotive version of the engine is equipped with a modified liquid cooling system and turbine. Dump trucks with such a 125-horsepower engine retained the previous designation GAZ SAZ 35071.

Dump truck equipment

The car is equipped with a standard two-seater cab located behind the engine. Behind it, an all-metal platform with an area of ​​about 8 m2 is installed on a separate auxiliary frame.

The side and rear sides are mounted on swivel hinges and can be folded back. The folding elements are equipped with mechanisms to facilitate closing. Side clamps are manual. Before unloading, the required element is secured. The standard platform has a side height of 62 cm. However, they can be increased to 1.25 m using standard extension panels. Thanks to such sides, the volume of the platform doubles, which is very convenient for transporting light and large cargo.

To tilt the GAZ SAZ 35071 platform, it is equipped with a telescopic cylinder with a hydraulic drive. This part consists of three sections that give a maximum stroke of 670 mm. The oil supply for the system is located in a 16-liter tank on the frame side member. Its filler neck has a filter and a level indicator. The second filter is installed on the oil supply line to the pump.

The pressure in the drive of the tipping system is created by a gear pump NSh 32UK-3 installed on the power take-off. Torque is taken to drive the pump from the gearbox intermediate shaft gear. The unloading direction is selected by the position of the control valve valves. To fix the platform in a raised state, there is a mechanical stop.

The unloading of GAZ SAZ 35071 is controlled from the driver’s cab. There are two levers for this - one turns on the power take-off, the second selects the direction of unloading. To install these levers in the cab, an original floor panel with cutouts is used.

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Modifications

Supplied under the designation GAZ-SAZ-35071, the dump truck is equipped with a diesel power unit. The increase in engine weight led to an increase in the total weight of the car, which reached 8090 kg. Early releases used a 125-horsepower MMZ D-245.7 unit, which was later replaced by a 135- or 149-horsepower YaMZ-534 engine. A 3-seater cabin is used as standard, but a 5-seater 2-row unit can be used.

The dump truck, shipped under the symbol GAZ-35072, was designed for transporting construction materials. The machine is distinguished by the use of an all-metal platform with a folding tailgate. The side parts are made beveled, which ensures increased strength of the unit. The standard equipment includes a short protective visor that covers part of the driver's cabin. There is a ladder at the back of the platform. The vehicle is designed to transport cargo weighing 4000 kg, the body capacity is 5.4 m³. It is possible to install a protective awning, which reduces the risk of cargo blowing out.

The GAZ-SAZ-3507-01 modification is distinguished by the use of a 125-horsepower gasoline engine equipped with an exhaust gas neutralizer without the ability to adjust the mixture composition. Some cars produced after 2016 have a modernized engine equipped with a fuel injection system. The unit develops a power of 137 hp and complies with Euro 4 standards. A standard type dump platform is installed, designed for 5 m³ of cargo.

The variant version of GAZ-SAZ-35072-10 is distinguished by the design of the platform lift, which allows only one-sided unloading to the rear. Because of this, the side sides are made motionless, only the rear section reclines. The standard body has a capacity of 5 m³, the use of extension sides allows you to increase the volume to 10 m³.

Performance

The engine determines many of the performance characteristics of the GAZ-SAZ-3507. Thus, it is possible to transport 4.125 tons of cargo (4.325 tons with extension sides) on the 3507-01 model and 4.1 tons on the 35072. At the same time, the curb weight of the first modification is 3.6 tons (extension sides increase it by 200 kg) , full - 8 tons. For 35072, similar parameters without extension sides are 3.69 tons and 7.94 tons, respectively.

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Truck 35071 is capable of transporting 4 tons, and 35072 - 3.95 tons. The curb and gross weight values ​​​​for the first version are 3.94 and 8.09 tons, and for the second - 4.08 and 8.18 tons. Fuel consumption also differs . Gasoline versions consume 19.6 liters per 100 km at 60 km/h, while diesel versions consume 14 liters. The maximum speed is 95 km/h for 35072-10 and 90 km/h for other modifications of the GAZ-3507 (SAZ).

Peculiarities

GAZ-SAZ-3507 dump trucks have been really popular for a very long time, but the demand for them has not disappeared even today. This is due to the fact that the model has proven itself to be an unpretentious machine, easy to operate and maintain. Also, many owners note that the equipment is very versatile and can work in many areas, from agriculture to the construction of any objects. But, despite all its advantages, the truck also has quite a few disadvantages.

First of all, mention should be made of the poor quality of the metal used in the construction of the cargo platform. Because of this, the car body quickly becomes covered with rust.

But in addition to corrosion, systematic heavy loads can also have a negative impact. Moreover, this has been proven many times in practice, since most often the truck is operated with overload on board. The consequence of this is metal separation at joints and sometimes even at welds. This problem cannot be solved even by installing various reinforcements in the form of additional channels and strips.

Another common problem is the occurrence of leaks in cuffs and hoses in the hydraulic system.

Other serious malfunctions occur quite rarely with this truck; minor breakdowns are more common. They can be eliminated with almost a minimum set of tools and in a short time. This feature is explained not only by the wide distribution and availability of spare parts and consumables, but also by the simplicity of the design. Even the most seemingly complex truck components can be repaired independently. Thanks to this, the GAZ-SAZ-3507 model remains a very popular, simple and reliable vehicle, which also has a low cost.

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History of creation

GAZ 3507 is one of the latest developments of the Gorky Automobile Plant (production began in 1984). The model was considered as a replacement for the GAZ 3307, the production of which ended in 1994. Engineers at the Gorky Automobile Plant decided to unify the models as much as possible by unit, which ensured the reliability of the design and reduced development costs. As a result, the GAZ 3507 retained most of the components from its predecessor, including a large hooded cabin and angular contours. The interior of the cabin has been redesigned, improving the heating and ventilation systems. There are new floor mats in the interior. GAZ 3507 received a completely redesigned rear frame of shorter length. The tow hooks have been replaced with a towing device, and the spare wheel has been moved rearward by 272 mm. The changes also affected the line of power units.

It is noteworthy that the GAZ 3507 was considered as a transitional model, which was later supposed to be replaced by a diesel version with greater efficiency. In the 1990s, the Gorky Automobile Plant began producing its own engines for cars, but after the collapse of the USSR, the enterprise was gripped by a crisis, as a result of which the production of engines and cars (gasoline GAZ 3507 and diesel GAZ 3507-01, GAZ 35071) sharply decreased.

However, production of the model did not stop completely. Moreover, in 2003, the Saransk Automobile Plant revived the car by creating a new version of the GAZ 35072, the basis for which was the GAZ 3309 model, equipped with a Belarusian D-245 diesel unit. The car became more economical than its predecessor and was practically not inferior to it in terms of technical characteristics. GAZ 35072 also retained the design of the original version. The carrying capacity of the machine was 4250 kg (only one-sided unloading was allowed).

In 2009, production of gasoline versions of the GAZ 3507 ended. The release of other models is currently ongoing.

Chassis

All versions of the GAZ 3507 are built on a 4 by 2 wheel arrangement. In terms of design, the series is almost complete analogues of its predecessor, the GAZ 3307. The basis of the car is a stamped frame shortened by 152 mm. The side spars, trimmed at the rear, were reduced in size. The developers also abandoned the stern crossbar.

The front suspension is equipped with double-sided hydraulic telescopic shock absorbers and is mounted on 4 longitudinal semi-elliptical springs. The rear suspension uses a similar design, but the shock absorbers here have additional springs. In the basic configuration, the GAZ 3507 is equipped with 20-inch wheels and pneumatic tires.

Engines, transmission, steering, brakes

GA3-Z307 trucks are equipped with 3M3-52Z1.10 gasoline engines. This is an eight-cylinder V-shaped carburetor engine with a working volume of 4.67 liters and a rated power of 124 hp. Maximum torque – 298 N.m. Compression ratio – 6.7. There is an exhaust gas recirculation function and liquid cooling. Motor weight – 275 kg. The engine runs on low-octane (76, 80) gasoline.

Trucks of the GA3-Z307 model are equipped with D-245.7 diesel engines from the Minsk Motor Plant. This is an in-line 4-cylinder diesel engine with a displacement of 4.75 liters and a power of 122 horsepower, with a turbocharger and intercooler (pre-cooling of charge air). And also - a microprocessor diesel fuel injection system. The weight of this engine is 530 kg. maximum torque – 410 N.m. Compression ratio – 17.

The GA3-SA3-Z507 dump truck is equipped with a mechanical four-speed gearbox, a single-plate dry clutch and a single hypoid final drive. For steering, a pair is used - a globoid worm and a three-ridge roller (on gasoline dump trucks), or a screw-type mechanism - a ball nut with a hydraulic booster. The brake system is with pneumohydraulic drive and drum mechanisms. The hand brake is cable driven.

STORY

In Soviet times, the Gorky Automobile Plant was considered one of the main manufacturers of medium-duty trucks. After the collapse of the USSR, the company lost its position, but some models of the brand remain in high demand on the market.

GAZ 3507 is one of the latest products of the Gorky Automobile Plant. Production of the car started in 1984. The well-proven GAZ 3307 was used as the basis for its creation. The model was a great success in the Union republics, but by the beginning of the 1980s it began to become obsolete. The developers wanted to create a new model at minimal cost and preserve the advantages of its predecessor. As a result, the priority became maximum unification of elements and nodes. Many units and parts of the GAZ 3307 were “migrated” into the design of the GAZ 3507, which made it possible to significantly save on the development process. The design has remained virtually unchanged. GAZ 3507 received the cabin of its predecessor with a large hood, standard angular shapes and a large radiator grille. The cabin of the new series has become larger and has improved heating and ventilation systems.

The GAZ 3507 differed from the previous version by a rear frame shortened by 152 mm. Changes in appearance were minimal. The spare wheel has moved 272 mm back. The towing hooks used in the GAZ 3307 were replaced with a towing device. The casing and floor mats have been completely changed. The remaining elements have been preserved in the same format.

Transformations took place in the engine line. GAZ 3507 was considered as a transitional series, which was supposed to be replaced by a more economical and modern model. To achieve this goal, in the early 1990s, the Gorky Automobile Plant opened the production of its own engines, but after the collapse of the USSR, the enterprise was gripped by a severe crisis. As a result, car production decreased noticeably, and the transitional model is still available on the market today.

Initially, the new series consisted of 2 modifications: GAZ 3507 (a dump truck based on the GAZ 3307 with a ZMZ-5231 gasoline engine, a load capacity of 4.13 tons and a body volume of 5 cubic meters) and GAZ 35071 (a diesel variation with similar characteristics). In 1989, a new generation of GAZ 3307 was introduced, on the basis of which modifications GAZ 3507-01 and GAZ 35072 were created.

The series expanded in the 2000s. After the appearance of the GAZ 3309 chassis, the premiere of the new version of the GAZ 35071 took place. However, truck sales continued to decline.

In 2003, the Saransk Automobile Plant tried to revive the series and launched the GAZ 35072. The model was based on the GAZ 3309 chassis with the Belarusian D-245 diesel unit. The car had a 4.5 cubic meter body, one-sided unloading and had a load capacity of 4.25 tons. Compared to other versions of the GAZ 3507, the new product was much more economical and required 14 liters of fuel per 100 km, practically not inferior in power and traction to the classic version. In terms of design, the GAZ 35072 was no different from the base model.

In 2009, production of gasoline modifications ended.

GAZ 3507 remains in demand in the domestic market. The production of the series on a small scale continues to this day.

Modern GAZ-SAZ dump trucks

In 2003, the plant in Saransk began production of the new model GAZ-SAZ-35072. The base chassis was the GAZ 3309, and its power unit was a Belarusian-made diesel engine D-245. This version of the dump truck turned out to be very economical - fuel consumption according to technical characteristics was 14 liters per 100 km at a speed of 60 km/h.

Dump truck based on GAZ 53 with preliminary lifting of the platform
Despite the fact that the diesel engine has half as many cylinders as the gasoline ZMZ, the power of the D-245 is slightly less. Dump trucks GAZ-SAZ-35071 and GAZ-SAZ-35072 are still produced by the Saransk plant, and these products are deservedly popular.

How to determine the malfunction?

If you have an electrical diagram on hand, you can easily use it to determine a malfunction in the operation of one or another element. To diagnose a breakdown, you will need a test lamp with cables and crocodiles, as well as a multimeter, which should be activated in advance to the voltmeter operating mode. One clamp from the control should be connected to the input contact of the node that you are diagnosing, and the second to ground, that is, to the body or engine of the vehicle or the “-” output of the battery.

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In accordance with the diagram, it is possible to determine which route the voltage takes from the battery to the diagnostic site; accordingly, the voltage should be diagnosed at all contacts of this section. If there is voltage on all contacts and elements of the circuit, the multimeter must be switched to ohmmeter mode and its terminals connected to the ends of one or another wire. If there are no breaks in the circuit, the arrow will deviate; if there are, then it will not move. To restore the functionality of a certain section of the circuit, you need to find a break and eliminate it. When diagnosing, it should be taken into account that electrical equipment often comes into operation when the ignition is activated (video author - Time Auto).

Purpose

Basically, the GAZ-SAZ-3507 truck carries out transportation and mechanized unloading of various cargo, both agricultural (grain, silage, manure) and fine-bulk (sand, expanded clay, crushed stone). As for operating conditions, the model can move on asphalt, dirt and field roads.

The instruction manual supplied with this truck contains a special note from the manufacturer stating that the model is not intended to transport concrete mixtures and mortars in the back, or to work in quarries. In addition, it is not recommended to transport large indivisible cargo, hard rocks, etc. This is due to the fact that the design of the truck is not capable of withstanding such loads, which in turn can lead to very serious damage. It is also unsafe, since due to large-sized cargo, the equipment can easily tip over.

The manufacturer recommends using the GAZ-SAZ-3507 as a single truck. Therefore, a coupling device is not installed on it from the factory and it is not prohibited to install it yourself.

This truck is ideal for use in temperate climates. But it can also be used in fairly harsh temperature conditions, since its full functionality is maintained even at temperatures from minus 45 to plus 45 degrees.

Possible truck malfunctions

In addition to relatively minor faults that do not take much time to repair, there are also more serious problems. First of all, we are talking about problems with hydraulics.

During long-term operation, minor leaks of hydraulic elements are observed. The truck's design is designed in such a way that even with a small leak, the driving performance of the GAZ is not reduced.

On the one hand, the driver will continue driving to the place where there are tools for repairs. On the other hand, the car remains for a long time without proper technical inspection. Drivers do not attach importance to the leak that appears; as a result, after 1-2 months the car becomes unusable. In addition to hydraulic fluid, truck hydraulic cylinders often fail.

This is what a hydraulic cylinder for lifting the body of a GAZ SAZ 3507 looks like

The manufacturer made sure that the GAZ 3307 and its cargo modification could cope with various loads:

• hard loading and unloading;
• transportation of oversized items;
• driving on a dirt road;
• operation in harsh weather conditions.

Depending on the intensity of driving, the driver is required to do a preventive examination every 3 months. The primary focus is on the hydraulic system, housing and engine. Despite the fact that the vehicle diagram does not include parts that are difficult to find, there is no need to allow serious damage.

The problem is that one breakdown often provokes a chain reaction. For example, when hydraulic fluid begins to leak, the engine starting circuit fails. A temporary, seemingly simple defect will result in a lengthy and expensive repair. If you are planning a long trip, it is strongly recommended that you take material with you to carry out repairs along the way. First of all, you need to pay attention to hydraulic pipes, hydraulic units, body mounts and oil.

GAZ SAZ-3507 Saransk dump truck plant

Initially, the GAZ 3507 dump truck was developed exclusively for use in the agricultural sector, since its technical characteristics allow it to be driven on poor quality roads. However, thanks to numerous advantages, the vehicle has become a truly universal solution for transporting goods.

According to the official data of the manufacturer, indicated in the documentation supplied with the car, it is not intended for transporting concrete, various solutions for construction purposes, or for use in quarries. This is due to the specific design of the vehicle, which involves transportation of:

• grains;
• manure, other fertilizers;
• silo;
• sand, gravel and small stones.

The vehicle drives well on bad roads. Failure to follow the manufacturer's recommendations can lead to rapid breakdown of key components of this truck. Most often, malfunctions are observed in the dump truck tipping mechanism, as well as related components. The design of the car does not imply the possibility of installing a coupling device, since its use can also lead to serious damage.

Description of the car

If you look at the photo of this kind of model, you can note that its design is fully consistent with the year of manufacture and is currently frankly outdated. Nevertheless, many cars in this series continue to be actively used to this day, due to their excellent performance and reliable design.

GAZ SAZ was equipped with a set of extension sides made of sheet metal or mesh. To increase the service life of the vehicle, the manufacturer recommended reducing the load on it to 75% of the maximum established values ​​during the break-in period. However, it is not recommended to use a car to transport goods weighing more than 4 tons.

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The truck is designed for use in areas with temperate climates, where temperatures range from +45 to -45 degrees. There are 2 modifications of this car, which differ in the type of power unit. Z5071 is a standard diesel truck, and modification 01 assumes the presence of a gasoline unit.

Truck device

The design of the vehicle is simple and reliable, which has made the use of the truck possible today. Its main element is the body, which is made of metal. It should be noted that the quality of the material often causes complaints from car enthusiasts, since when used intensively, it is often susceptible to corrosion or deformation.

The over-frame device deserves special mention, assuming the presence of the following components:

• front beam made of bent metal profile;
• rear beam;
• subframe - a welded structure consisting of cross members and longitudinal beams.

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The hydraulic cylinder support, as well as rubber buffers, are connected to the last element. The electrical circuit of the truck is extremely simple, it includes a generator, a battery, and is used to illuminate the roadway at night, as well as for a confident start of the car. The cost of the product is extremely low, varying from 90 to 600 thousand rubles, depending on the condition and year of production.

ABS diagram GAZ 3309

The ABS scheme of the GAZ 3309 is an ABS anti-lock braking system that provides effective braking and a minimum braking distance, preventing blocking of wheels located in less favorable traction conditions on ice.

GAZ 3309

The GAZ 3309 ABS diagram consists of four ABS sensors in the wheel units of the car, three modulators on pneumatic amplifiers, an ABS control unit, an ABS diagnostic button, an ABS fault indicator and an ABS harness connecting the sensors and modulators of the control unit on the GAZ 3309 ABS diagram.

ABS diagram GAZ 3309

ABS diagram GAZ 3309: 1 compressor; 2 – air dryer with pneumatic regulator; 3 – regeneration air cylinder; 4 – double-circuit protective valve; 5 – air pressure drop sensor; 6 – air cylinder; 7 – condensate drain valve; 8 – two-section brake valve with lever; 9 – ABS rotor speed sensor; 10 – brake mechanism with ABS rotor on the hub; 11 – electric pressure gauge; 12 — buzzer; 13 – indicator of emergency piston movement and drop in brake fluid level; 14 – ABS signaling device; 15 – two-section tank; 16 – pneumatic booster with main cylinder; 17 filter; 18 – emergency piston stroke sensor; 19 – control valve; 20 – ABS modulator; 21 – ABS control unit; 22 – sensor for switching on the “STOP” signal; 23 – pressure gauge sensor; 24 – “STOP” signal lamp; 25 – brake fluid level drop sensor; 26 – silencer

DEVICE

The design of the GAZ 3507 is not distinguished by its elegance, since the car was created for economic purposes. The large hooded cabin, preserved from Soviet times, the powerful bumper pushed forward, and the round headlights in the wings do not add to the car's attractiveness. In technical terms, the GAZ 3507 looks much better. For its class, the truck is relatively small in size and is characterized by high directional stability and maneuverability. Large rear mirrors allow you to control the situation when driving, and high-power lighting devices allow you to operate the vehicle in the dark.

Overframe device

GAZ-SAZ-3507 is equipped with a special over-frame device on which a dump cargo platform is installed. This device has three separate units, namely the front and rear beams, and the subframe itself.

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The front beam is presented in the form of a hollow beam, which is essentially a bent metal profile. The upper plane of the beam has a welded pair of brackets on which rubber buffers are installed. The lower plane has brackets, through which it is installed in the frame structure of the truck. The ends of the beam have side plates and a pair of welded axles that have front platform support brackets, and several brackets that secure the front side light and side protection.

The subframe is a welded frame structure secured to the vehicle frame with bolts. It has two longitudinal beams and cross members connecting them to each other. In addition to connecting the crossbars, they also serve as a stop for the hydraulic cylinder of the lifting mechanism. The left longitudinal beam is equipped with a safety stop that secures the rear-raised loading platform. To soften shock loads, the subframe also has rubber buffers.

A rectangular metal profile was taken as the basis for the rear beam. The upper plane is equipped with thrust brackets and supports that interact with the rear rotating bearings of the body. The side and bottom planes have brackets that allow you to firmly fasten this beam to the frame structure of the truck.

The taillights are also mounted to the rear beam using brackets. In addition, there is a license plate holder, rear side marker light and contour lights.

Body description

The manufacturer installs a steel body with folding sides on the base chassis. Unloading can be done to both sides and to the back.

Optional installation available:

• Frame with awning;
• High-height extension sides;
• Board assistants;
• Side seals.

The dump truck's passport indicates that it has an agricultural purpose and is suitable for unloading. The hydraulic drive ensures lifting and tilting of the body.

GAZ-SAZ-35071 body with awning

Specifications

Table 1 Technical characteristics of the dump truck

• through the front axle
• through the rear axle

Continuation of Table 1

* Control fuel consumption is used to determine the technical condition of a dump truck and is not an operational standard.

Engine

Modern GAZ 3507 models are assembled on the GAZ-3309 chassis. The truck is equipped with an MMZ D-245.7 engine. This in-line 4-stroke 4-cylinder engine with gas turbine supercharging and liquid cooling complies with Euro 1 environmental standards.

Characteristics of the MMZ D-245.7 unit:

• working volume – 4.75 l;
• rated power - 122.4 hp;
• compression ratio – 17.

Earlier models used a 4-stroke V-shaped 8-cylinder engine ZMZ-5231.10 with exhaust gas recirculation and liquid cooling. The design features of the unit are the presence of aluminum blocks, cylinder head and OHV valve mechanism. The engine is a carburetor type and meets the requirements of the Euro-2 standard.

Motor parameters ZMZ-5231.10:

• working volume – 4.67 l;
• rated power - 124 hp;
• maximum torque – 298 Nm;
• motor weight – 275 kg;
• compression ratio – 7.6.

The engine runs on A-76 or AI-80 gasoline. After additional configuration, the unit can be used with AI-92 fuel. ZMZ-5231.10 is characterized by high fuel consumption, which is why the Gorky plant decided to switch to diesel modifications.

Fuel consumption

The fuel consumption of a given vehicle is determined by the load level and speed limit. At a speed of 60 km/h it is 19.6 l/100 km, at a speed of 80 km/h – 26.4 l/100 km. The fuel tank capacity is 105 liters.

The gearbox is mechanical, consisting of four stages. The GAZ 53 dump truck was equipped with a single-plate dry clutch and a single hypoid final drive. The steering was equipped with a pair of globoid worms with a three-ridge roller. The tire diameter was 20 inches.

Dumping device for loading platform

The loading platform of the GA3-SA3-Z507 dump truck is raised and tipped using a hydraulic cylinder 3507-01-8603010-01. It is telescopic, single-acting, with three retractable plunger links. The total stroke of the links is 695 mm. The tipping mechanism lifts and lowers the platform, stopping it in any intermediate position; The pressure limit in the hydraulic system is no more than 115 - 120 kgf/cm2.

The lower and upper ball joints of the hydraulic cylinders are located in the centers of the lower part of the body and subframe. The desired tipping side is selected by the driver by releasing the removable hinge pins at the base of the platform. If the stall is to the left, the driver releases the two right hinges; right - vice versa; if the stall is rear, then two front ones.

Energy is transferred from the engine to the platform raising mechanism using a power take-off controlled by a lever from the cab. The power take-off is mechanical, single-speed, combined with a pump and control valve. The PTO lever has two locking positions: “lift” and “neutral”. The hydraulic system filling capacity holds 16 liters. An NSh-32U-3 oil pump is placed on the power take-off housing, and behind the cab, between the frame and the body, there is an oil tank made of thin stamped steel sheets.