Tractor Kirovets K-744 - modifications, technical characteristics

Tractor K-744R3 technical characteristics. Kirovets tractors are powerful agricultural machines of 5-8 traction class with engines of 250, 300, 350, 390, 420 hp, which, along with the legendary K 700, K 701 and K 702, form the basis of the heavy arable fleet today

Kirovets K-744R3 tractors of different generations

Tractor K-744R3 technical characteristics. Kirovets tractors are powerful agricultural machines of 5-8 traction class with engines of 250, 300, 350, 390, 420 hp, which, along with the legendary K 700, K 701 and K 702, today form the basis of the fleet of heavy arable tractors of most Russian agricultural enterprises. is a child of .

Over the years, the plant has become one of the largest agricultural engineering enterprises in Russia, whose products have received recognition not only in Russia, but also on the international market. The modern technical base of the plant allows us to produce high-quality Kirovets tractors in a wide range, which allows us to fully satisfy the requirements of consumers.

The Kirovets K-744R3 general-purpose agricultural wheeled tractor of traction class 5 is designed to perform basic agricultural work:

• plowing,
• cultivation,
• harrowing,
• sowing,
• transport works.

The model range of Kirovets tractors is quite wide, it includes tractors of varying power, functionality and range of applications. You can find out interesting information about tractors from us.

History of creation

The Kirovets K 744 tractor has been produced at the St. Petersburg Tractor Plant since 1995. Russian and German designers were jointly involved in the development of the machines, and the first models were manufactured exclusively for export. In 2000, the St. Petersburg Tractor Plant began mass production of K 744P machines intended for the domestic market and for sale to allied countries.

Since 2002, the Kirovets K 744 tractor has replaced previous models such as K 701, K700, K703. 2014 was the year of complete modernization of the Kirovets K 744 tractor. Several modifications of this machine are produced at the St. Petersburg Tractor Plant. Starting from 2016, the models are equipped with an automated gearbox of our own production.

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Story

The Kirovets special vehicle 744 got its start back in 1962 - the first K-700 was produced with 235 horsepower, which was an innovation in those years. Fifteen more were released that year, and then fifty models the following year for industrial testing. In 1965, the State Customs Committee produced the first Kirovets for assembly line production with some changes.

This year a record 1,200 special vehicles were produced. By 1975, the first Kirovtsev models were obsolete, and their volume of work was not enough, so the K-701 with 300 horsepower was released. This product went through a lot and by 2000 the tractor described in this article with 428 horsepower was created.

By 2007, the K-700 models (1 and 3) began to fail to meet safety requirements and their workforce became insufficient, which contributed to the emergence of the third generation of industrial and sixth generation of agricultural tractors. New models up to 516 horsepower and high payload The updated series are used abroad for the first time in 25 years and are sold to North American countries.

K-744R1: technical characteristics

In the first modification “Standard”, the K-744R1 tractor is equipped with a V-shaped 8-cylinder engine YaMZ-238ND5 from the Yaroslavl Motor Plant, with a displacement of 14.85 liters and a power of 300 horsepower. The rated speed is 1900 rpm. Maximum torque – 1280 N.m. Rotation speed at maximum torque – 1100…1400 rpm.

YaMZ-238ND5

In the second modification “Standard”, the K-744R1 tractor is equipped with a V-shaped 8-cylinder engine TMZ-8481.10-11 from the Tutaevsky Motor Plant, with a displacement of 17.24 liters and a power of 300 horsepower. The rated speed is 1500 rpm. Maximum torque – 1778 N.m. Rotation speed at maximum torque – 1250…1350 rpm.

Previously, there was also a “Premium” modification of the K-744R1 tractor. Vehicles of this modification were equipped with Cummins 6LTAA8 or 9-C300 with a power of 306 hp. With. But few Kirov vehicles were produced with Cummins, and then (after modernization in 2014) the use of these engines was abandoned altogether.

Specifications

Technical characteristics of the Kirovets tractor in the table:

The video shows the K 744 tractor in action:

Engine and modifications

Modifications of the Kirovets-744 differed in the type of engine installed. Thus, the basic version received the YaMZ-238ND4 engine, and the K-744R and K-744R1 models acquired the YaMZ-238ND5 unit. Both versions were produced by Yaroslavl Avtodiesel, which became the main supplier of Russian diesel engines. Motors from this manufacturer were characterized by a significant service life (up to 12,000 operating hours), ease of maintenance and repair, and cost-effectiveness when operating in a variety of conditions. The K-744R2 version again received a Yaroslavl engine.

Distinctive features of Avtodiesel products are built-in oil-water radiators for oil cooling, 4-valve cylinder heads and Kompakt-40 fuel equipment. On tractors with a Yaroslavl-made engine, a pre-heater was again installed.

Some modifications of the K-744 received foreign Mercedes-Benz engines:

• A 354-horsepower engine was installed in the K-744 R2M tractor, and a 401-horsepower unit was installed in the K-744R3M.
• The K-744Р3М model acquired a 6-cylinder in-line turbodiesel OM 457 LA with electronic injection function from Daimler AG (power 428 “horses”).

These versions were distinguished by high torque, reliability and significant power.

Energy saturation

Kirovets tractors are characterized by high energy saturation. This term means that the equipment is able to operate for a long time at a high level of efficiency, which is especially important when processing large areas. This characteristic also ensures that the tractor operates in difficult climatic conditions, for example, with large temperature differences in summer and winter, which are typical for the temperate climate zone.

Kirovets equipment is available in two versions - with a Russian diesel engine, and with a Mercedes-Benz engine.

According to the advertising booklet of the Kirov Machine-Building Plant, the energy-rich all-wheel drive wheeled tractor of the Kirovets K-744R brand is the most frequently purchased tractor in Russia. The serial range of this model is represented by modifications K-744Р1, K-744Р2 and K-744Р3, which differ in engine power. It is 300-390 hp. Also, the differences between the modifications of the K-744R tractor consist in the availability of devices for mounted units.

Design features

The first tractors of the K-744 series were equipped with turbocharged eight-cylinder YaMZ-238ND5 engines. This powerful four-stroke engine is equipped with a cold start system and a water-oil cooled radiator.

Power plant 300 hp. consumes 174 g/l per hour at a maximum crankshaft speed of 1900 rpm. The large fuel tank capacity of 630 liters makes long-term operation possible without refueling. The 24-speed Powershift gearbox supports 16 forward and 8 reverse speeds.

Using hydraulic gears, speed mode switching is achieved without loss of power. A hydraulic pump with a capacity of 180 l/min ensures the operation of trailed and attached equipment.

Greater stability, better cross-country ability and maneuverability are given to the tractor by a frame articulated by a hinge system. The turning radius of the huge machine is only 7.9 m. To reduce the impact on the fertile soil layer, double wheels and lower tire pressure are used.

Two drive axles, made of high-strength steel alloys with a rigid type of suspension and especially a self-locking differential and planetary type final drives, distinguish the series from other similar units. The pneumatic system allows the towed equipment and both axles to be controlled separately.

A fairly sealed cabin, with a panoramic view, is equipped with an on-board computer, heating, air conditioning and sound insulation systems. The seat and steering column are adjustable to the driver's parameters. The roof structure can also be changed.

Attachments are attached using a three-point scheme. Trailers are attached using a pendulum fastening.

Specifications:

• Tractor weight - 13.4 tons
• Dimensions: length - 7 m, width - 2.86 m, height - 3.69 m
• Speed: transport - 28 km/h, operational - 4.5 km/h
• Attachment weight - 8.5 tons

Technical data allows the tractor to work with various attachments: cultivators, seeders, harrows, plows, rippers

Tractor k 744

The Kirovets models from the K-744 line, which began production in 1995 and underwent extensive modernization in the early 2000s, were the result of a radical change in the outdated K-700 and K-701 tractor models. They have incorporated all the latest improvements in technology and equipment, interior and exterior elements, maintaining undeniable leadership among Russian equipment of this type in the power range of over 300 hp.

Purpose

The K-744 belongs to the high 5th traction class and at the same time has extensive capabilities for working with various trailed tools and all kinds of attachments. This “comprehensiveness” of the machine expands the boundaries of its application to the status of a multifunctional draft unit and allows it to solve a wide range of problems:

• The main purpose is agricultural work of all types.
• Transporting heavy loads over short and long distances.
• Work at fishing and rock mining sites.
• Issues of construction, road and utility services.

The value of the model lies in the fact that in climates of different latitudes it can be freely used year-round, and for the most difficult tasks of transportation, towing, etc.

INTERESTING! Only one K-744 tractor can completely cultivate (prepare and sow) areas of up to 5 thousand hectares per season, ensuring the minimum cost of each hectare of crops.

Advantages and disadvantages

At the moment, domestic tractors of the Kirovets K-744 brand are one of the most popular and most powerful tractor equipment purchased in Russia, which is explained by the unique combination of many useful properties in one unit:

1. Equipped with powerful and at the same time economical turbodiesels produced by well-known companies with 6 or 8 cylinders, developing power up to 428 hp. and torque up to 2000 N*m (TMZ, YaMZ, Cummins, Mercedes-Benz).
2. Continuous operation without refilling for up to 14 hours thanks to the large gas tank.
3. The ability to change gears without interrupting the power flow under load.
4. Increasing, if necessary, traction capabilities by installing an additional set of dual wheels and ballast weights.
5. High driving characteristics due to all-wheel drive and the presence of elements that increase driving efficiency:
   self-locking differential;
6. planetary type wheel reducer;
7. sprung front axle.
8. Increased maneuverability, which is ensured by a very small turning radius for such colossal equipment due to the action of the articulated frame of the machine.
9. Convenience, comfort and safety of the operator in an ergonomic cabin with modern equipment.
10. Can be combined with any trailed and mounted equipment.
11. Relatively affordable in comparison with similar foreign equipment.

ATTENTION! Some disadvantage of the K-744 series tractors is the problem of the standard hydraulic system, equipped with an NSh pump, which produces significant energy losses. To eliminate this problem, machines are equipped with oil flow regulators - electronic with remote control or manual.

Photo of the Kirovets K-744 tractor

Modifications of K-744

The 744 line is represented by four units P1, P2, P3, P4. They have classifications – “Premium” and “Standard”. The main differences between the groups are the technical configuration of each unit.

Tractor K-744P1

It is worth noting that there was previously a “Premium” modification. It was equipped with 6LTAA8/9-C300 diesel engines with a power of 306 hp. The production of tractors in this classification was stopped after 2014.

Tractor K-744 P2

The premium diesel engine is used in many trucks today. Specific consumption is 151 g/l.h.

Tractor K-744P3

The operating weight of a unit with an engine in the “Standard” configuration is 16.63 tons, a tractor with an engine in the “Premium” classification is 16.165 tons. The wheels have oversized tires 800/65 R32.

K-744 P4

The tractor in the “Premium” configuration has a specific fuel consumption of 151 g/hp/h. Regarding the operating weight, it is the same as that of the K-744P3. The model is equipped with an oversized wheelset with 800/65 R32 tires.

It is worth noting that Kirov tractors equipped with Mercedes engines have the most economical resource consumption. However, such models have a significant disadvantage - the high price of the unit itself and spare parts for them.

Regarding the purchase of tractors K-744 R, K-744 R2, please contact us by phone.

Sale and delivery of the Kirovets k-744 R agricultural tractor is carried out in St. Petersburg, Moscow and other regions of Russia: Irkutsk, Barnaul, Tyumen, Salekhard, etc. A high-quality delivery service guarantees the safety of your cargo.

Additional photos:

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Kirovets K-740 “Premium” (K-744R3)

To all products of the Agricultural Tractors group

crawler tractors wheeled tractors tractors soil cultivation equipment agricultural machinery special equipment automobile transport

The main idea of ​​the Kirovets tractors is high productivity, excellent cross-country ability and maneuverability, simplicity and reliability of design, maintainability, aggregation with both traditional and modern wide-cut complex soil-cultivating and seeding implements and machines. The capabilities of one tractor of the K-744R series make it possible to prepare and sow up to 5,000 hectares within a year in full compliance with agricultural deadlines. At the same time, the minimum cost of sowing 1 hectare is guaranteed. Thanks to their excellent traction and transport characteristics, Kirovtsy are used year-round for the most difficult transport work: work in cold weather, towing stuck equipment, etc. The K-744R line includes eight models of general-purpose agricultural tractors of 5...8 traction classes with a power of 300 up to 428 hp Each model can be equipped with a domestic or foreign engine. All tractors are equipped with a working equipment hydraulic system with an axial piston pump with a maximum capacity of 180 l/min. The basic equipment of all tractors includes a three-point hitch of category IV N according to ISO with a quick hitch system, a tow bar and a hydraulic hook. At the customer's request, the tractor can be retrofitted with optional equipment that expands its production capabilities. Improvements for 2022

A tractor that makes it easy!

The KIROVETS K-744R series tractors have undergone important improvements in terms of comfort, control systems, aggregation, maintenance and warranty. More detailsTrimble hydraulic autopilot

Hydraulic autopilot TRIMBLE EZ-GUIDE 750

Provides precise positioning of the tractor and implement across the field, increases operator productivity, saves time and resources. Pays for itself in two seasons. More details

Engine

Rated power 401 hp. (295 kW) Engine model OM460LA E3A/4 (Mercedes) Engine type In-line, 6-cyl. Working volume 12.82 l. Rated speed 1800 rpm Maximum torque 1900 Nm Speed ​​at max. cr. torque 1300 rpm Specific fuel consumption 151 g/hp h (205 g/kWh)

Dimensions and weight

B -> Base 3750 mm L -> Dyne (with raised linkage) 7350 mm W -> Width 2875 mm D -> Track 2100 mm H -> Height 3876 mm K -> Ground clearance (under the hinge axis) 500 mm Smallest turning radius (on the outer wheel) 7980 mm The highest of the average conditional pressures of the propellers on single wheels is 1.1 kgf/sq.cm (110 kPa) The largest of the average conditional pressures of the propellers on dual wheels is 0.8 kgf/sq.cm (80 kPa) Size tires 30.5R32 Operating weight on single wheels 16,165 kg: front axle 9,020 kg + rear axle 7,145 kg Operating weight with wheel tandem kit 18,265 kg: front axle 10,411 kg + rear axle 7,854 kg

Transmission

Gearbox Automated “T5”, 16F/8R, four-mode with hydraulic power shifting and pneumatic mode switching. Leverless control system "KOMANDPOST": the selection of the operating range and gear is carried out using a joystick-shifter and several buttons, a program for protecting against operator errors. Axles Unified, with self-locking "no-spin" differentials and spaced planetary gearboxes. The front axle is suspended from the frame on two longitudinal semi-elliptical springs with hydraulic shock absorbers. The rear axle is rigidly connected to the frame. The rear axle is switchable.

Operator's workplace

Double cabin, with built-in safety cage, with thermal, vibration and noise insulation, with air conditioning and heating. Leverless control system "KOMANDPOST": the selection of the operating range and gear is carried out using a joystick-shifter and several buttons, a program for protecting against operator errors. Steering via hydraulic pump. Microclimate Separate-unit air conditioning system. The maximum temperature in the warm season is not more than 28 °C, the minimum temperature in the cold period is not less than 14 °C

Work equipment drive

Implement Hydraulics Load Sensing (LS) System:

• adjustable axial piston pump,
• 5-section distributor,
• 4 pairs of free outlets (hydraulic lines) with flow control 0−90 l/min,
• free drainage lines,
• maximum pump performance 180 l/min.

24/12 Volt 50 Ampere Converter (optional) High Capacity Hydraulic Option: 250 l/min (optional) Power Beyond Kit (optional) Soft Start Power Take Off (optional) 1000 rpm (single speed) , independent, with a circulation lubrication system for the gearbox. Three shaft shank options. Shanks are replaceable. Maximum power at PTO at rated engine speed of at least 257 hp.

Hitches

Three-point hitch of category IV according to the ISO standard, can be equipped with adapters of category III (optional). Standard load capacity (at a distance of 610 mm from the suspension axis) is 5500 kg, at the suspension axis up to 8500 kg. Possibility of installing a towing bracket and a towing device (hydraulic hook). Electro-hydraulic attachment control system (EHR option) Position and force control. Required for working with mounted agricultural implements. For example, with reversible plows and mounted subsoilers. Pendulum towbar (optional) Permissible vertical load up to 1900 kg, pin diameter 37.5 mm Ball type trailer hitch (optional) Ball diameter 80 mm, installed on the pendulum towbar for the use of trailers with a ball towbar. Drawbar (optional) Vertical load capacity up to 4080 kg and pin diameter 50.8 mm (2 in)

Propulsion options (options)

Kit for doubling wheels 4 drum spacers with a kit for fastening the drum to the axle carrier and fastening additional wheels, 4 wheels. The highest of the average conditional pressures of the propellers on dual wheels is 0.8 kgf/sq.cm (80 kPa) Set of tracks Ground pressure, depending on the tractor model, from 400 g/sq.m to 540 g/sq.m. Set of wide-profile tires 4 wheels, wide-profile radial tire 1000/50R25.

Attachments (options)

Protection kit for raising fallow lands Special protection of the bumper, hood and headlights of the tractor from mechanical impacts Bulldozer blade Removable bulldozer hydraulic blade with a skewing system. Uses standard tractor hydraulics. The blade width is 3.4 m, the rotation angle is 30 degrees, the blade skew is 12 degrees. Information about goods is for reference only and is not a public offer as defined by Article 437 of the Civil Code of the Russian Federation. The manufacturer reserves the right to change the configuration and technical characteristics of the product without prior notice. For detailed information about the configuration and cost of Kirovets equipment, please contact the company’s sales department and its official dealers.

Energy-rich KIROVETS K-744R series tractors are designed for:

• basic and pre-sowing tillage,
• work effectively with seeders and seeding complexes for sowing both row and non-row crops

Also indispensable in the following jobs:

• transport,
• application of fertilizers,
• silage,
• snow retention,
• road clearing.

Tractor capabilities High functionality, productivity, efficiency and reliability of the KIROVETS K-744R series tractors are characterized by high average annual operating hours - 1500−3000 operating hours. Warranty 2 years or 3000 hours.

Key Features and Benefits

Precision farming systems (optional)

New automated gearbox "T5"

New transmission control system "KOMANDPOST"

Powerful frame with double reinforced hinge

Hydraulic system of working equipment with axial piston pump 180 l/min, 5 adjustable hydraulic lines

4 types of towing devices (optional)

Attachment position-force control system - EHR (optional)

3-point hitch with Walterscheid hooks, hydraulic hook and drawbar

16/8 gears, shifting without interruption of power flow

Self-locking differential

Sprung front axle

Power take-off with soft start (optional)

Spacious 800 liter fuel tank

Comfortable insulated cabin with air conditioning, sprung seat Cooling unit with opening oil cooler

Spare parts box

Wheel doubling kit (optional)

Track kit (optional)

Three-circuit pneumatic system Protection system for cultivating fallow lands

Removable hydraulic blade (optional)

Wide profile tires

Options for next-generation precision agriculture systems: “Power Beyond Kit” and “24/12 Volt Converter with 50 Ampere Current”

Hydraulic option for increased performance MEGAPOTOK-250pdf Catalog K-7 (September 2018) (2.76 MB) PDF Improvements K-7 (2018) (1.48 MB) rar Operating instructions for KIROVETS K-7 series tractors (August 2018) (15 ,66 MB) rar Operating instructions for KIROVETS K-744R series tractors (November 2017) (21.49 MB) pdf Leaflet about increasing the safety margin for the use of dual wheels and tracks (292.71 KB) html Link to the spare parts catalog (258 ,00 B) zip Wheel doubling instructions (716.81 KB) zip PTO installation instructions (7.33 MB) zip Mercedes engine operating instructions (3.41 MB) video

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from March 21, 2022

Device

The internal structure of the tractor is made in accordance with the best ideas of that time. In 2000, there was no machine that would provide not only the best productivity, but also ergonomics and comfortable operation. The engineers who created the fourth version of the KIROVETS project were able to fit into it high technical indicators, a convenient control access system and installed a comfortable and safe cabin. The main components of the tractor that ensure high performance can be called:

• Manual transmission with the ability to switch between 16 forward and 8 rear travel modes.
• High-strength alloy steel is used as the material for the KIROVTS bridges. Both axles are driven, while the rear axle can be disabled. Each of them has a rigid suspension.
• An additional element is installed on the tractor semi-frame, serving as a load. This load allows for greater traction with the surface of the earth on which the unit operates.
• The hitch is mounted on three zones, and also involves the operation of a power take-off shaft with a large set of fastening elements for different devices. The PTO allows the use of many attachments for various purposes.

Cabin and steering equipment

The cabin of the K-744 tractor provides a high-quality, comfortable room designed for two seats. Driver safety is ensured by a built-in rigid frame that can withstand enormous loads. The basic package also included a tinted window frame, which replaced the usual composite glass. Additional devices include:

• Air conditioner.
• Sound recorder.
• Mechanism for adjusting the position of the operator's seat.
• Front and rear windshield wipers.
• Two pairs of front and rear lights, as well as a pair of flashing lights.

The cabin has excellent all-round visibility, an ergonomic structure, a central operator's seat, as well as noise, vibration and thermal protection systems.

Attachments

KIROVETS has a three-point equipment suspension system. The basic configuration of the tractor allows the use of the following models of attachments:

• Seeding complexes of various sizes and types - seeders and wide-cut units.
• Cultivation devices – paw, disk and combined models. It is possible to install cultivation complexes intended for sowing.
• Plows for various purposes - for primary cultivation, for cultivating old arable soil and other types.
• Deep loosening devices used to decompact soil compositions, as well as for cultivating old lands.
• Disc harrows.
• A huge variety of trailers designed for transporting cargo. The K-744 series tractor is widely used as a towing tool.

Advantages and disadvantages

Thanks to its unique technical capabilities, K-744 are leaders in their towing class.

Nevertheless, even European farmers pay tribute to our machines when purchasing Kirovets for their farms, rightly assessing their advantages over equipment from other manufacturers.

What can be included with

Additional equipment is installed on the machine according to the order of the client who contacts the manufacturer. Among the body kit, the following devices and mechanisms can be noted:

• PTO.
• Trailer in the form of a pendulum.
• Dual wheel system.
• Hook-shaped trailer.
• Torque converter.
• Devices for controlling tire pressure.
• Arched and twin wheels.
• Triangular traction mechanism.
• Dump.

Modifications

Ultra-modern modifications of the Kirovets K-744 were tractor models called the 5th generation of this legendary special unit and allocated to a separate line K-744R. Their serial production began in 2000 and included several models with the indexes P1, P2, P3, equipped with powers from 300 to 428 hp.

Each of these tractors can be equipped with a different set of elements and components depending on the customer’s needs. In this regard, the “Standard” package with a domestic or “Premium” package with an imported engine is offered.

The machine can also be supplemented with a pendulum tow hitch, a separate passenger seat, etc., and among them there are the following modification features:

• The K-744R1 differs from the base tractor mainly in the presence of a sprung front axle and an integrated cab safety cage, as well as greater fuel efficiency;
• K-744R2 offers the consumer a more powerful engine up to 350 horsepower, a modern design, easy hydrostatic control, adjustable steering column height and other conveniences for the operator;

Photo of tractor K-744 r2

• The K-744R3 can cover work that requires power up to 400 hp, is equipped with an imported air cleaner with high dust capacity from Donaldson, a hydraulic pump with the ability to regulate fluid flow, a Bosch hydraulic distributor and the ability to install additional ballast.

Technical characteristics of modifications:

Video review of the K 744 r3 tractor:

Tractor Kirovets K 744 P3: technical characteristics

Tractor Kirovets K-744 R3: photo on the field

The K-744R3 tractor is modern, energy-rich, and economical. Provided with warranty and service through a wide network of representative offices and dealers. “Kirovtsy”, in terms of a combination of technical parameters and consumer properties, successfully competes with the best foreign analogues.

The standard version of the K-744R3 tractor is equipped in the hydraulic system of the attachment with an axial piston oil pump with adjustable flow rate of working fluid (MAX production 100 l/min) and a 5-section hydraulic distributor (for 4 pairs of outputs, including 1 with regulation flow rate) for connecting combined agricultural units.

Tractor Kirovets K744 R3 with trailed equipment during operation

There may be other options for completing the hydraulic system:

Equipment “5” (for P2 and P3): with an axial piston pump with adjustable flow rate of working fluid (MAX output 150 l/min), 5-section distributor, 4 pairs of leads, incl. 1 with flow control.

Equipment “7” (for P2 and P3): with an axial piston pump with adjustable flow rate of working fluid (MAX output 180 l/min), 5-section distributor, 4 pairs of leads, incl. 1 with flow control.

Engine K 744R3

The following engine models can be installed on K 744R3 tractors:

Technical characteristics - Tractor K-744R3

New Kirovets K744R3 tractor: technical characteristics of modern models

New Kirovets K-744 P3 tractors are still being produced

Petersburg Tractor Plant continues to produce Kirovets K744R3 tractors, since the model is still competitive and in high demand. The new generation K744R3 has the following technical characteristics:

• Weight - 17.5 tons.
• Eighth traction class.
• Agrotechnical clearance - 0.5 m.
• Fuel tank volume - 800 l.
• Fuel consumption - 157 g/hp.
• The K-744 P3 tractor cabin is double with panoramic glazing and sound insulation.
• The front and rear axles are equipped with a self-locking differential.
• The tractor is equipped with 800/65 R32 tires.

The basic package of the Kirovets K744R3 includes options such as an audio system and air conditioning.

The K 744 P3 tractor is equipped with a 390-horsepower diesel engine TMZ-8481.10-02 with turbocharging, a rotation speed of 1.9 thousand rpm and a torque of 1860 Nm. The engine displacement is 17.24 liters.

Tractor transmission

The automatic transmission of the K744 P3 tractor has four speeds. The gearbox is equipped with pneumatic switching of modes and hydraulic switching of speeds without interruption of the power flow within the boundaries of each mode.

Kirovets K744 P3 hydraulic system and attachment

The Kirovets K 744 P3 tractor is equipped with a load-sensitive hydraulic system of working equipment, which includes an axial piston pump with a capacity of 180 l/min, four adjustable hydraulic lines and free drainage.

The attachment of the K744R3 tractor complies with ISO category IV. The load capacity per suspension axle is 9 tons, the standard load capacity (610 mm from the axle) is 5.5 tons. Kirovets K744R3 is equipped with a tow bracket and a hydraulic hook.

Dimensional and mass parameters

As standard, the K 744P1 tractor has the following dimensions and weight:

• Machine length – 7100 mm. The total length with the hitch in the raised position is taken into account;
• Tractor width – 2865 millimeters;
• Height from the ground to the top edge of the exhaust pipe – 3845 mm;
• Vehicle clearance at the hinge axis is 460 mm;
• Wheelbase (distance between front and rear wheels) – 3750 mm;
• Tractor track width 2115 mm;
• Turning radius (outer wheel) – 7980 mm;
• Wheel size – 28.1 R26;
• The total weight of the equipped vehicle with single wheels is 14,000 kilograms;
• The weight of the tractor with dual wheels is 15,790 kilograms;
• Front axle weight - with single wheels - 8100 kg, with double wheels - 9000 kg;
• Rear axle weight – with single wheels – 5920 kg, with wheel twinning kit 6790 kg;

Power unit

Depending on the modification, the Kirovets K744R tractor is equipped with power plants of both domestic and foreign production:

• K 744R1 - equipped with the domestic YaMZ 238 (300 horsepower), or the foreign Cummins (306 hp);
• K 744R2 – TMZ (350 hp), or Mercedes (350 hp);
• K 744R3 – TMZ (390 hp), or Mercedes (401 hp);
• For 744R4 - TMZ (420 hp), or Mercedes (428 hp).

Models of the “standard” group are equipped with domestic units. Foreign engines are installed on cars belonging to the “premium” group.

Each of the above engines is a diesel unit with turbocharging power, which is sufficient for multi-purpose use of the machine. The engines are equipped with a combined cooling system (oil - water), this allows the tractor to be used at high ambient temperatures.

To improve starting in winter, pre-heaters are installed on power units. The engine is started using an electric starter. The engines are easy to operate and unpretentious to weather conditions. They have a long service life, low vibration levels, and meet international standards for harmful emissions into the atmosphere. You can also read about the Bison Tractor - Build it yourself.

Purpose

Kasemsot 744, also called a tractor, in terms of its power this machine is designed to perform heavy work, mainly transporting goods, therefore it is used in complex enterprises:

• metallurgical;
• mining;
• quarries;
• logging;
• road works.

But since the tractor can also work with attachments, it is also used in agriculture to cultivate areas of thousands of hectares: for plowing, harrowing, and sowing.

In addition, the Kirovets design was taken as the basis for such special vehicles as a front-end loader, a log skidder, a stacker, a gradedozer, a vibratory roller, and a snow blower.

Tractor K 744 Kirovets

General information, purpose, scope

Today, the Kirovets K-744R2 tractor is available in 4 versions, corresponding to 5-8 traction classes. The high power of the tractor is determined by domestic (YaMZ and TMZ W-300-400 hp) and foreign (Mercedes, Cummins 306-428 hp) power units. The main purpose of the equipment is to transport heavy and oversized cargo, so it is used in enterprises of high complexity:

• metallurgical;
• mining;
• logging;

• road works;
• agricultural - for volumes of thousands of hectares and with any type of attachments.

In addition to the main production of several modifications and configurations, the design was used as a base for the manufacture of loaders, forest shooters, graders, rollers - 17 types in total.

Tractor Kirovets series 744r

The most popular in this model range is the modification of the Kirovets-POWERPLUS tractor, abbreviated as K-744R. There are such modifications of this machine: K744R1, K744R2, K744R3, K744R3-1, which differ in the power and weight of the tractor.

What the designated Kirovets models have in common is:

• All-wheel drive;
• Articulated frame;
• V-shaped 8-cylinder engine;
• Manual Transmission;
• Hydraulic control;
• 4 gear ranges, 16 of which are forward and 8 reverse.

The Kirovets tractor has multifunctional applications. This technique has gained immense popularity and has a fifth class of traction. It is important to note that today Kirovsky Zavod is the only company producing vehicles of the fifth and eighth traction classes. Moreover, the high power of the machines is combined with a reduced price compared to their European and Chinese counterparts.

The average price for modifications of the K 744R is 6 million and above. It all depends on the configuration of the model. The cost of used equipment depends on the year of manufacture and the actual condition of the agricultural machinery.

Advantages over other brands and models

The technical characteristics of the Kirovets tractor of the K-744R series make it possible to cultivate up to five thousand hectares of land per year, in full compliance with all agronomic deadlines. An important feature is that the cost of cultivating one hectare using this agricultural machinery is minimal.

The Kirovets K-744R tractor is the most popular and affordable powerful agricultural machinery in Russia. The technical characteristics provide important operational advantages:

Photo. Advantages of the Kirovets K-744R Tractor

1. Full compliance with established safety standards and ease of use:
   high ergonomics;
2. convenient transmission control;
3. the operator's seat is located in the center, which ensures comfortable control of the tractor and excellent visibility;
4. air conditioning and a sophisticated heating system guarantee operator comfort in all weather conditions;
5. The reinforced safety cage meets all established labor safety standards.
6. Engine power is determined by the following parameters:
   economical six- and eight-cylinder turbodiesel with a power of up to 428 liters per second;
7. torque with a margin of up to 36 percent - up to 2000 Nm;
8. efficient engine starting system at low temperatures;
9. modern cooling system;
10. installation of engines from well-known manufacturers is provided - YaMZ, Cummins, TMZ, Mercedes-Benz.
11. Gearbox – mechanical with hydraulics in four ranges. The ability to change gears without interrupting the flow of traction power within the range under load - 16 forward and 8 reverse.
12. All-wheel drive and self-locking drive axles provide high driving characteristics.
13. The volume of the fuel tank guarantees non-stop operation for 14 hours without refueling.
14. Excellent maneuverability of the tractor is ensured by an articulated frame, which allows for small radius turns.
15. There is the possibility of aggregation with various loops.
16. The tractor is equipped with a modern hydraulic system of working equipment.
17. Equipped with a three-point hitch of the fourth category (basic equipment), a pendulum coupling device and a power take-off mechanism.

The warranty period is one year (2000 operating hours).

Video: Review of Kirovets K744R tractors

Video: Review of the work of the K-744R series Kirov aircraft

Brake system

The K744 tractor is equipped with a pneumatic braking system consisting of:

• Belt driven compressor. Used to inject compressed air pressure into receivers;
• Air receivers (cylinders). Serve to store a supply of air under pressure sufficient to supply the system;
• Safety valve. Necessary to protect the system from excessive pressure build-up;
• Brake valve. Used to control tractor and trailer brakes;
• Hoses and pipelines;
• Brake chambers. They act on the wheel braking mechanism under compressed air pressure. The cameras are rigidly attached to the tractor axles.

The operator controls the brake system by pressing the pedal in the cab. The K 744 is equipped with a connection head. It is necessary for connecting the air lines of the tractor and trailer. If the coupling breaks, the connecting head disconnects the lines, preventing air leakage from the tractor brake system.

Engine configuration

Russian-made engines. V-shaped, 8 cylinders:

Engine photo: YaMZ-238ND-5, V-shaped, 8 cylinders

Mercedes-Benz engines. In-line, 6 cylinders.

Engine photo: Mercedes-Benz. In-line, 6 cylinders OM 457 LA

Automated transmission "T5"

In the photo: Automated gearbox "T5"

Revisions and improvements to the T5 automatic transmission:

• The electrical control and automation unit has been improved.
• Now the inclusion of ranges is precision pneumatics.
• The pressure in the control system has increased.
• Increased consumption for lubrication and engine cooling.
• The teeth of the friction clutches are strengthened.
• Added additional disks in the package to speed up switching between on and off modes.
• A new and improved clutch drum design reduces heat when engaging and disengaging.
• New bearings are provided that extend the service life and transmission oil.
• The MPP rail has enhanced sealing.

In the production process of individual components and parts of the tractor, new modern technologies are used:

• hardening using laser equipment;
• processing of parts using high-precision equipment;
• new surface grinding technologies are used;
• heat treatment of parts on a modern thermal line.

Specific fuel consumption

How to correctly estimate the actual fuel consumption for the actual operating conditions of the tractor, based on the parameters indicated in the technical specifications showing the specific fuel consumption?

To calculate fuel consumption in grams per hour, you need to multiply the specific consumption parameter by the rated power. Next, the resulting parameter must be multiplied by 1000, so the consumption in grams is converted to kilograms. Then you need to divide the resulting figure by the density of diesel fuel - standard 0.86. The result of the calculations is fuel consumption in liters per hour.

Approximate calculation of fuel consumption for the K-744R tractor of the “Standard” model:

• Rated power according to technical documentation Ne - 300 hp. (220 kW)
• Estimated specific consumption ge - 162 g/hp h (220 g/kWh)
• Fuel consumption in liters per hour = ???????? x ??????????/ 1000 x 0.86 = 300 x 162/860 = 56.5 l/h (220 x 220/860 = 56.5 l/h)

Hydraulic system

Tractors of the K-744R series are equipped with a modern high-performance hydraulic system of working equipment (HW). The LS system with axial piston pumps provides highly efficient operation with modern seeding systems thanks to its controlled flow.

GRO for K-744R series tractors – main parameters:

• hydraulic fluid flow – maximum 180 l/min;
• at the outlet of the quick-connect coupling the pressure is 185 bar;
• pressure in the hydraulic system – maximum 210 bar;
• four adjustable hydraulic lines for aggregation with hydraulics of additional attached equipment;
• drainage and free flow lines.

Four sets (pairs) of quickly connected breaking devices are designed to connect the necessary hydraulic lines of agricultural machines or implements connected to tractors to the tractor hydraulic lines. Bursting devices prevent oil from leaking out of a hydraulic hose operating under high pressure in the event of an emergency disconnection or rupture.

The hydraulic accumulator (absolutely sealed, under high pressure) reduces the peak load that occurs when switching spools on the hydraulic valve of equipment in the pump-hydraulic valve section.

To reduce losses in the hydraulic system and eliminate overheating when working with a seeder, which is equipped with a hydraulic fan drive motor, the tractor spare parts system includes a kit for free drainage (bypassing the hydraulic distributor directly into the hydraulic tank) and an additional hydraulic motor drainage kit.

Pneumatic system

The three-circuit pneumatic system is designed for smooth braking of the front and rear axle wheels and trailer wheels, operation of the hydraulic accumulator drive of the parking brake system, air bleed for tire inflation and towing, and blowing of the cassette air cleaner.

The pneumatic system has three circuits independent of each other. If one circuit is damaged, the other two will work without interruption. The 1st and 2nd circuits are designed to brake the front and rear wheels, the 3rd circuit controls the parking brake accumulator and trailer brakes.

Attachments

The Kirovets is equipped with a hydraulic system with a five-section distributor. The hydraulic system capacity is 180 l/min. As standard, the K744 is equipped with a three-point hitch with a quick hitch system.

Various equipment can be installed on the canopy:

• Trailers of any type;
• Rotary and fixed plows;
• Soil cultivators;
• Cultivators;
• Seeders and much more.

ATTENTION: The three-point hitch of the Kirovets K 744 tractor meets international standards. This makes it possible to connect equipment not only of domestic, but also foreign production.