Bulldozer Shantui SD23: technical specifications

Shantui SD23 is in great demand among Russian consumers. The advantages of special construction equipment include adaptability to performing excavation work during the construction of industrial and civil facilities, construction and repair of road surfaces. In addition, the bulldozer is positioned as a reliable, productive, powerful and economical machine with a modern appearance.

Shantui SD23 Crawler Dozer

Navigation

• Features and Benefits
• Technical characteristics and dimensions
• Engine
• Device
• Chassis
• Hydraulic system
• Operator's cabin
• Ease of operation and maintenance
• Working equipment
• Modifications
• Cost of new and used
• Analogs
• Manual

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Information about the manufacturer of this equipment

Shantui is a large manufacturer of construction equipment from the People's Republic of China, whose main product was originally bulldozers. In the 2010s, the company significantly increased both production volumes and the range of products. Now it includes, in addition to bulldozers, also excavators, road rollers, pipe layers, motor graders, front loaders and other construction equipment. Shantui is part of the large state-owned industrial concern Weichai Holding Group Co., Ltd.

Shantui's headquarters is located in Jining, Shandong Province, China. But the company's factories are not only located there. The history of this company is consonant with the history of the rapid growth of the entire Chinese economy. It was founded at the turn of the 1990s/2000s. She did not invent something of her own, but used the technologies of one of the largest manufacturers of construction and industrial equipment - the Japanese Komatsu Corporation - to create and develop her own production.

Thanks to affordable prices for its equipment, it has increased sales of bulldozers for export, and is already making bold and ambitious plans - to become the largest manufacturer of industrial and construction equipment in the world, surpassing the leader - Caterpillar Inc.

Over the past two decades since the start of full-fledged production, Shantui's products have become widely known far beyond China: the Shantui trademark is registered in more than 120 countries around the world. An extensive network of dealership centers for the sale and service of special equipment was created on all continents, with the exception of Australia and North America. Currently, Shantui also includes twelve subsidiary manufacturing companies.

Features of the Shantui SD23 bulldozer

This bulldozer model can rightfully be called a complex product from Shantui and Komatsu. Simply put, the Shantui SD23 bulldozer is not a copy, but a complete analogue of the Japanese-made Komatsu D85A-21 model. Moreover, we are not talking about piracy: Shantui has the right to use Komatsu’s developments within the framework of a cooperation agreement with this respected Japanese manufacturer, including in the production of subsequent models and modifications of this special equipment. The distinctive features of this bulldozer include:

• a system for strengthening the stability of a special vehicle when operating on a slope, to prevent it from tipping over on its side;
• a large area of ​​support for the caterpillar track on the base, which also has a beneficial effect on the stability of the bulldozer;
• the use of seven support and two support rollers to maintain the caterpillar track;
• location of the swing axes in the front part of the chassis to reduce the impact on the final drives and increase the duration of their service life;
• special damper supports that significantly reduce the amount of vibration in the cabin and increase its noise immunity;
• an electronic control system that monitors the state of the special vehicle during its operation. In case of minor deviations in operating characteristics from normal, it helps to immediately resolve the problem without interrupting the work process. During troubleshooting, control is carried out through redundant channels;
• multi-disc brakes installed in an oil bath. This solution eliminates the need for maintenance and system settings.

The drive rollers are manufactured using casting. Thanks to the wide caterpillar track, with a large support area, the specific pressure on the base does not exceed 78 kPa. This is also facilitated by an increase in the area of ​​the shoes, and the installation of seventy-eight of them.

The advantages of the Shantui SD23 bulldozer include its relative affordability and efficiency in operation, decent technical characteristics, comfortable operator's workplace, and modern technologies in the production of special equipment. Thanks to these qualities, and first of all, the lower cost of the bulldozer than its famous “classmates”, it is in consistently high demand.

Features and Benefits

The developers of the Shantui SD23 bulldozer have provided for the possibility of using it in many areas of activity, which ensures such quality as versatility. It easily copes with excavation work, loosening soil, clearing areas, as well as transporting goods. The equipment is most often used in road and construction work, because... in these industries it is most effective.

Optionally, attachments can be installed to improve productivity when working in the following conditions:

• in highlands where thin air is present;
• in places of disposal of various wastes;
• in forestry;
• in marshy areas or in low-traffic conditions;
• in deserts;
• at low temperatures (Far North, etc.).

Bulldozer Shantui SD 23

The bulldozer is a complex product of Shantui (China) and Komatsu (Japan). The manufacturer has the right to use joint developments in the production of subsequent models and modifications of equipment. The Shantui SD 23 bulldozer itself is an analogue of the Japanese-made D85A-21 model. The distinctive features of the Chinese product include:

• a system to increase machine stability when working on a slope, which prevents tipping;
• increased area of ​​support of the caterpillar track on the base, which also has a beneficial effect on stability;
• to maintain the caterpillar track, seven support and two support rollers are installed;
• The swing axes are located at the front of the chassis. This allows you to reduce the impact on final drives and increase the duration of their trouble-free service;
• damper supports reduce the amount of vibration in the cabin and noise;
• an electronic control system that monitors the state of the machine during operation. In case of small deviations of operating characteristics from the norm, it allows you to quickly eliminate the cause and not interrupt the work process. During troubleshooting, control is carried out through redundant channels;
• The brakes are multi-disc, in an oil bath. This eliminates the need for maintenance and system setup.

Shantui SD23. Photo

In addition, the advantages of construction equipment include efficiency, high technical characteristics, comfort, and modern production technologies. Due to these qualities and the low cost of the bulldozer, it is in high demand.

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Areas of application of Shantui SD23 bulldozer

The Shantui SD23 bulldozer has a high degree of versatility, which makes it possible to use it in many areas of economic and industrial activity. This includes leveling excavation work, clearing territories and large construction sites, and loosening soil. Most often, this special equipment is used during road and construction work, because... in these industries it demonstrates the greatest efficiency.

The Shantui SD23 bulldozer is capable of productive work in a wide variety of climatic conditions. Thanks to the use of Japanese developments, the reliability and service life of the main functional units have been significantly increased.

As an additional option, this special machine can be equipped with mounted working parts, which help to increase productivity when working in the following specific conditions and adapt to them:

• in the highlands - where thin air is present;
• in places of burial of various household, chemical or radioactive waste;
• in forestry;
• in swampy areas, or on loose soils, in conditions of reduced cross-country ability;
• in desert areas;
• at extremely low temperatures (in the conditions of the Far North, Siberia, and so on).

Ease of operation and maintenance

The chip of the Shantui SD23 bulldozer condition monitoring system allows you to timely determine the cause and location of the problem.

Maintenance is quick and easy thanks to the unique one-sided design. The engine compartment has increased internal space, which allows for quick and free service work. Liquid tanks, controllers and main functional units are located here. The block arrangement of control points reduces the time for technical inspection and the duration of downtime of the bulldozer during its implementation, and also reduces the cost of checking and servicing the special vehicle.

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Technical characteristics and overall dimensions of Shantui SD23 in numbers

• Weight – 24.6 tons;
• Overall dimensions (length x width x height) – 5.87 m x 3.73 m x 3.38 m; length including blade and ripper – 7.18 m; width including blade and ripper – 4.39 m.
• The track width of the caterpillar track is 2 m.
• The minimum turning radius is 3.3 m.
• Minimum ground clearance – 405 mm.
• Track width – 0.56 meters;
• Specific pressure on the base – 78 kPa;
• Ground pressure – 0.078 MPa.
• Maximum depth – 0.54 meters;
• The maximum digging depth is 0.7 meters;
• Number of support rollers (each side): 2 pcs., support rollers (each side): 7 pcs. (5 single-breasted and 2 double-breasted).
• The number of shoes with a single grouser is 39 pcs. from each side.
• The width of the track shoes: standard, in the basic configuration - 560 mm (by additional order it is possible to install shoes with a width of 610 mm or 660 mm).
• The track pitch is 216 mm.
• The maximum pressure in the hydraulic system is 19.1 MPa (195 kg/cm2).
• Liquid supply is at a speed of 194 liters per minute.

SPECIFICATIONS

Overall dimensions of Shantui SD23:

• total length – 6830 mm;
• length without ripper – 5790 mm;
• length without equipment – ​​4200 mm;
• width – 2680 mm;
• cabin height – 3380 mm;
• length of the supporting surface – 2730 mm;
• front track – 2000 mm;
• rear track – 2000 mm;
• ground clearance - at least 405 mm;
• minimum turning radius – 3300 mm.

The operating weight of the machine is 24600 kg, the specific pressure on the surface is 0.078 MPa. The bulldozer is capable of working on slopes of up to 30 degrees.

Characteristics of the main line

front attachment (straight blade/pivot blade/ball blade):

• volume – 7.8/5.4/8.4 cubic meters;
• width – 3725/4365/3860 mm;
• height – 1395/1107/1379 mm;
• maximum depth – 540/560/540 mm;
• maximum skew adjustment – ​​1210/1240/1210 mm;
• weight – 2900/3372/3350 kg.

The basic configuration of Shantui SD23 assumes the presence of a straight fixed blade and a three-tooth ripper for working with frozen soils. The maximum lifting height of the ripper is 555 mm, the distance between the teeth is 1000 mm.

A single-shank ripper is available as an option.

Shantui SD23 bulldozer engine

The consistently high technical characteristics of the Shantui SD23 bulldozer are determined by the installation of a powerful, modern and productive engine manufactured by Cummins. Modifications: NT855-C280 S10 and NT855-C280 BCIII. Any of these power plants weighs no more than 1.18 tons. These are four-stroke six-cylinder in-line diesel engines with liquid cooling, direct injection of diesel fuel, and turbocharging.

The engine compartment of the bulldozer has increased internal space. This made it possible to place in it not only all the main devices, but also controllers. Which, in turn, guarantees ease of maintenance and reduces downtime when performing various service work. Maintenance can be done quickly and easily due to the unique one-sided design. Tanks for liquids, controllers and main functional units are located in convenient accessibility. The block arrangement of control points not only reduces maintenance time, but also reduces the cost of checking and maintaining the special vehicle.

Engine specifications in numbers

• Working volume – 14 liters.
• Rated power – 162 kW (220 hp)
• The highest torque is 1030 N.m, at a rotation speed of 1850 rpm.
• Cylinder diameter – 139.7 mm. The piston stroke is 130 mm.
• Diesel fuel consumption – 217 g. for every kilowatt of power per hour of operation, which is about 35–40 liters per hour.
• The capacity of the diesel fuel tank is 600 liters.

Engine

The high technical characteristics of the Shantui SD23 bulldozer are due to the installation of a modern powerful engine manufactured by Cummins. The engine compartment has increased internal space, which made it possible to place not only the main devices, but also controllers. This ensures ease of maintenance and reduces downtime during service work.

Two types of engines can be installed on a bulldozer. These are improved units NT855-C280 S10 and NT855-C280 BCIII. At the same time, the power plant weighs no more than 1.18 tons, and the power indicators are higher than the standard model. These units operate in four-stroke mode, are equipped with six cylinders and consume diesel fuel. To lower the engine temperature, a liquid cooling system is provided; the high-quality operation of the installation is guaranteed by a direct fuel mixture supply system. This results in high efficiency and economical diesel consumption.

On average, a bulldozer consumes 217 g of fuel per kilowatt of power per hour of operation, which is about 35 - 40 l/h. The capacity of the fuel tank is 600 liters.

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Transmission of Shantui SD23 bulldozer

The gearbox of this special vehicle allows you to change gears in a timely manner and move at speeds from 3.8 to 11.8 km/h in forward gears and from 4.9 to 14.3 km/h in reverse gears. The transmission of the Shantui SD23 bulldozer also includes:

• final drive, equipped with a spray lubrication system, as well as a 2-stage spur gearbox;
• drive drive, also equipped with a spray lubrication system, as well as a spiral gear transmission and a single-stage gearbox;
• single-stage, three-element single-phase hydraulic transformer;
• rotary coupling - continuously closed, multi-disc, in oil with hydraulic drive;
• planetary transmission, hydraulically connected, with a forced lubrication system and a multi-disc clutch.

The hydromechanical gearbox implemented on these special vehicles greatly simplifies the process of moving and controlling the bulldozer. You need to select the maximum engine speed, and then, using the decelerator pedal and steering levers, you can easily move the bulldozer in any direction, simultaneously performing all the currently necessary working functions: soil leveling, pushing and moving masses of soil, loosening the soil, clearing construction sites and technological dirt roads. Also, in the middle of the final drive drive frame there is a PTO - power take-off shaft.

Main settings

“Shantui SD 23” can be called a complete analogue of the Japanese Komatsu D85A-21. In this case, there is no need to talk about technical piracy or industrial espionage, because The bulldozer was created as part of a cooperation agreement between two manufacturers.

The car organically combines Japanese quality and reliability with Chinese mass production and low price.

Table No. 1. Technical characteristics

Engine, fuel consumption

The bulldozer is driven by a power unit manufactured by Cummins. The diesel engine is represented by an in-line six-cylinder design.

• The cylinders are located in a vertical plane.
• Fuel is injected directly into the combustion chamber using Cummins' patented PT technology, and turbocharging is used to generate more power.
• The engine is liquid cooled.

The engine compartment has an increased internal volume, which makes it easier to service or repair the power plant. Operating parameters:

• crankshaft rotation speed - 1850 rpm;
• cylinder volume - 14 l;
• torque (crankshaft speed) - 1030 Nm (1250 rpm);
• average fuel consumption - 214 g/kW·h (approximately 38 l/h);
• cylinder diameter and piston stroke - 140x152 mm.

Transmission, chassis

The power transmission of the bulldozer is represented by a reliable transmission of a new design. It includes: a three-element single-stage torque converter, a 6-speed gearbox, final drives, and rotary clutches.

The gearbox receives rotation from the engine through a multi-plate clutch operating in an oil bath.

The gearbox is equipped with a forced lubrication system. Thanks to this, the torque on the output shaft has increased, friction losses and wear of contact surfaces have decreased.

Final drives are represented by two-stage spur gearboxes. Gears are lubricated by dipping them into oil and then spraying it. Drive sprockets are installed on the output shafts of the gearboxes, which engage with the caterpillar track.

Maneuvering is carried out by breaking the torque. For this purpose, multi-disc disconnecting clutches are installed on the track drives of the right and left sides. The operator activates them by moving the corresponding lever, which in turn activates the hydraulic drive.

To reduce the turning radius, it is possible to use a belt-type brake operating in an oil bath.

The peculiarity of the “Chinese” is its resistance to capsizing. The developers achieved this by shifting the center of gravity closer to the ground and increasing the track width, as well as the supporting surface of the track.

The latter is held in place by 9 cast support rollers. Of these, 2 support the idle branch, the rest take the weight of the apparatus. The tension of the web is carried out by the deflector wheel.

Hydraulics

The bulldozer is equipped with two independent hydraulic circuits.

• One is necessary to ensure uninterrupted operation of the transmission and internal executive bodies of the machine. The hydraulic fluid pressure is used by the torque converter, coupling drives and brakes.
• The second circuit is involved in the power supply circuit for the actuator cylinders of the blade and ripper. A gear pump with a capacity of 194 l/min at rated engine speed pumps oil into the pressure line.

Ultimate pressure is limited to 19.1 MPa. The direction of the flow of working fluid is set by the spool valve.

A total of 4 hydraulic cylinders are installed on the machine:

• 2 of them with a diameter of 120 mm raise/lower the bulldozer blade;
• one at a time with an internal cross-section of 200 mm, they tilt the blade and use the ripper.

The functioning of the hydraulic system is ensured by a working fluid reserve tank with a volume of 120 liters.

Dimensions, weight

The weight and size characteristics of the Shantui SD23 do not stand out from the average range of parameters required for bulldozer equipment.

Table No. 2. Dimensions

The bulldozer was equipped with elongated propellers. This made it possible to leave the specific pressure on the ground unchanged, compared to the previous model, within 78 kPa with an increased mass.

Workplace

The bulldozer is equipped with a cabin in the form of a hexagonal prism.

1. The manufacturer declares that this design improves visibility of the front and rear working tools, makes it easier to operate the equipment, and minimizes the risk of injury to others.
2. In the standard configuration, a high-performance ventilation system with a heater and air conditioning will be installed in the cabin. It takes in outside air through a filter and creates excess pressure in the cabin, preventing dust from getting inside.
3. To reduce noise and vibration, the cabin is mounted on special damping supports. In addition, all metal panels are covered with insulating material, which keeps the cabin warm or cool and helps reduce sound pressure on the operator's hearing.
4. The control handles are located ergonomically, which reduces the load on the operator’s forearms.

Shantui SD23 chassis

The bulldozer chassis is a progressive development of the manufacturing company in collaboration with Komatsu. It has repeatedly passed all the necessary tests for strength and endurance and is actually a copy of the chassis of the Japanese D65 and D85 bulldozers. The chassis is made in the format of separate modules, which are connected into one single structure. These solutions make it possible to reduce the duration of work on replacing tracks and maintaining special vehicles.

By separate special order, in the optional mode, tracks of various types and widths are installed, which can guarantee consistently high maneuverability under any changing conditions. The high technical characteristics of the Shantui SD23 bulldozer are due to its decent driving performance; the ability to move in reverse at a fairly high speed, widened caterpillar tracks. All of these factors ensure efficiency in excavation and leveling work in any conditions. Including where such standard technology cannot be used.

Shantui SD23 hydraulic system

The Shantui SD 23 bulldozer is equipped with 2 independent hydraulic systems that are not interconnected. These hydraulic systems are presented:

1. hydraulic system of working bodies, which is responsible for the operation of the ripper. At the same time, reciprocating movements of the piston of the hydraulic cylinder and the blade are performed to ensure consistently high pressure in the hydraulic cylinders;
2. hydraulic chassis drive system, which maintains a stable required pressure of engine oil entering the hydraulic transformer. This is required to lubricate bearings, gears and other mechanisms that are subject to friction and used during braking.

Shantui SD23 bulldozer operator cabin

In the cabins of Shantui SD23 bulldozers, the amount of vibration and noise was noticeably reduced by installing special damping supports. The cabin offers wide panoramic visibility in all directions, which guarantees constant safety of work, with the operator having full control over the work process. The external shape of the cabin is a hexagon.

To maintain decent operator comfort, modern air conditioning and interior heating devices are provided. By the way, they are an integral part of the basic configuration of this model of special equipment. The cabin interior is lined with good quality soundproofing materials, which reduces noise and maintains constantly comfortable working conditions for the bulldozer operator. His chair is fully customizable, and all major controls are located close to the operator's hands, ergonomic and intuitive.

The motion control levers are located on the left side, they are placed as conveniently as possible for constant manipulation. On the other hand, under the right hand, there are control levers for working equipment - a bulldozer blade and a ripper. They are set in motion smoothly, without the use of significant effort. A hydromechanical gearbox in combination with brakes and clutches helps to perform all necessary operations exceptionally clearly and with great precision. When working, you may get the impression that you are not driving a multi-ton heavy special vehicle, but a toy tractor that performs all operating functions without significant muscular effort on the part of the bulldozer operator.

Operator's cabin

The Shantui SD23 cab has reduced vibration and noise due to the installation of damping supports. The salon offers panoramic visibility, which guarantees work safety and the ability to fully control the work process. Externally, the shape of the cabin corresponds to a hexagon. For operator comfort, air conditioning and heating systems are provided, which are part of the standard equipment. The interior is lined with high-quality soundproofing material, which reduces noise and creates more comfortable working conditions for the operator. The driver's seat can be adjusted, the controls are located in close proximity to the driver's hands.

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Working equipment

The standard basic equipment of Shantui SD 23 bulldozers includes the following working parts:

• a straight, non-rotating U-shaped blade, which is mounted in the front of the equipment using two powerful metal pusher bars. The dump is used in a full range of earthmoving and land management operations. The soil category does not play a significant role when using this working equipment. The width of the dump is 3.725 m, the height of its working surface is 1.39 m;
• single or three-shank ripper installed at the rear of the bulldozer. This working body is a dismantled structure with three links. The distance between the fangs of a three-prong ripper is one meter. It is effective for working with high loads - on particularly hard, rocky, frozen soils.

In general, there are two straight versions of Shantui bulldozer blades available (rotating or non-rotating with hydraulic skew), as well as a spherical one. The drawing prism of different types of bulldozer blades (fixed and rotary), which are produced for completing Shantui SD23 bulldozers, is 7.8; 5.4 or 8.4 cubic meters. The blade width is 3.725; 4.365 or 3.86 m. The height of the bulldozer blade is 1.395 m; 1,007m; 1.379 m. The maximum depth of the blade is 540 or 560 mm. The maximum skew adjustment is 1210 or 1240 mm. The weight of the Shantui SD23 bulldozer blade is 2.9 tons; 3.35 t; 3,372 tons.

Shantui SD23 description

The Shantui SD23 bulldozer was developed on the basis of the Shantui SD22, from which the new version differs in an upgraded hydraulic system and a more powerful power unit

Before purchasing a bulldozer, you can choose one of three blades. Two straight versions are available (rotating and non-rotating with hydraulic skew), as well as a spherical one. The maximum width of the front implement (straight rotary blade) is 4.4 mm. The other two models have a width of about 3.8 m. The maximum depth of the blade is 540 mm, and it can be raised by 1.2 m. The maximum rotation angle of the rotary blade is 25 degrees. The most capacious is the hemispherical blade - with its help you can move up to 7 cubic meters of rock.

The ripper, installed in cases where the buyer needs it, can be single-post or three-post. The maximum depth of these organs is 695 and 666 mm, respectively, the lifting height is 515 and 555 mm. The rippers have a parallel design, there are three fangs.

The Shantui SD23 can work on slopes up to 30 degrees. The speed limits are as follows: 11.8 km/h when moving forward, 14.3 km/h in reverse. The minimum turning radius is 3.3 m.

Chassis: each track has 39 shoes; support rollers are installed in the amount of two pieces (on each side), support rollers - seven. The type of chassis is with suspended diagonal beams and a swinging balancer. The type of track shoes is compound with one lug.

The weight of the blade is 2.9-3.4 tons (depending on the selected model).

The overall dimensions given apply to bulldozers equipped only with a blade (without a ripper).

The bulldozer receives the necessary power from a turbocharged and water-cooled diesel engine. The Cummins NT855-C280S10 is an inline four-stroke 6-cylinder unit that produces up to 169 kW. The specified power is achieved at 2,000 rpm. The cylinders are located vertically.

If we talk about fuel consumption, the value declared by the manufacturer is 217 g/kWh. The pressure lubrication method is used.

Let's also talk about the power transmission. The manufacturer installed a planetary multi-disc gear with forced lubrication. Depending on the hydraulic force applied, forward or reverse direction is used at one of three speeds.

The torque converter is a single-phase three-element. The brake is a wet floating type. The main drive is a one-stage speed reduction, the final drive is a two-stage.

Shantui SD23 is equipped with a hexagonal cab with good visibility. To create comfortable working conditions for the driver, a chair with a wide range of adjustments (height, tilt, rigidity) is installed.

The maximum pressure value in the hydraulic system reaches 19.1 MPa. Pump type - double gear. The control valve type is spool valve. There are two hydraulic cylinders for lifting the blade, the diameter of each of them is 120 mm.

The operator monitors all key indicators using the combined control panel.

One of the main qualities of the Shantui SD23 bulldozer of the 15th traction class is its simplicity of design and maintainability. The basis of the machine is a hydromechanical transmission, a mechanical injection pump, and planetary final drives.

Based on the shantui sd23, bulldozers SD23E, SD23S and SD23D were developed.

Comparable competitor models in terms of technical characteristics are: HBXG SHEHWA SD7P, Sinoway SWD220YS, Shantui SB23.

Shantui Construction Machinery Co., Ltd. is considered the leading bulldozer manufacturer in China. It specializes in this type of equipment, which is produced in different configurations for different operating conditions. Recently the company began to cooperate with the Japanese manufacturer Komatsu, as a result of which a joint venture was created. Thanks to this, the quality of products and the technologies used are fully consistent with the level of world leaders in the construction of bulldozers.

Modifications of Shantui SD23 bulldozers

Additional letter designations in the manufacturer's name index indicate characteristic features that can be added to the standard model in optional mode: E – undercarriage with tracks of increased width; D – special modification for work in desert areas; S – option with the ability to work in wetlands; R is a special modification of the engine with high environmental friendliness of its exhaust.

Reviews of bulldozers of this model

Most often, potential buyers of these machines have doubts about the strength of the metal from which the Shantui bulldozer itself and its working parts are made. This is a completely reasonable attitude: everyone knows that Chinese metal, to put it mildly, is very far from the required standards. However, practice shows that the resource of the chassis (rollers, tracks, drive and driven wheels) of Shantui bulldozers is comparable to the resource of their Japanese counterparts and “donors” - from Komatsu.

In operation and maintenance, Chinese bulldozers are no less convenient than Komatsu. They do not require a significant number of special devices for maintenance, although there are still some features. Most of the filter elements are located in places convenient for replacement. The drain and filler necks of the bulldozer systems are located quite conveniently for their use. The choice of operating materials is as simple as possible. In particular, all systems of a special vehicle use the same type of oil – motor oil. The bulldozer operator's workplace is made comfortable, which allows him to stay in the cabin for quite a long time without fatigue.