Minimum speed of the tractor K 744. Tractor K744 "Kirovets" - Specifications

The main idea of the Kirovets tractors is high productivity, excellent cross-country ability and maneuverability, simplicity and reliability of the design, maintainability, aggregation with both traditional and modern wide-range integrated tillage 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 in full compliance with agricultural terms within a year. At the same time, the minimum cost of sowing 1 hectare is guaranteed.

Due to its excellent traction and transport characteristics, Kirovtsy are used year-round for the most difficult transport operations: work in cold weather, towing stuck equipment, etc.

The warranty period for Kirovets tractors of the K-744R series is 1 year or 2000 operating hours.

Competitive advantages of tractors "Kirovets":

The Kirovets tractors of the K-744R series are among the most powerful tractors bought in Russia due to a unique combination of properties:

Favorable and safe working conditions... Sophisticated ergonomics, central location of the operator's seat, excellent visibility, favorable microclimate due to air conditioning and a powerful heater, reliable safety cage.
High power. Powerful and economical 6 and 8 cylinder turbodiesels, power up to 428 hp, torque up to 2000 Nm, torque reserve up to 36%. Cold weather starting system. Effective cooling system. Engine manufacturers - YaMZ, TMZ, Mercedes-Benz, Cummins.
Traction without interrupting the power flow... Mechanical transmission with hydraulic control: 4 ranges, 16 forward gears, 8 reverse gears. Shifting gears within ranges under load without interrupting power flow.
Increased thrust... Wheel doubling kit and additional ballast weights to increase traction capabilities.
Excellent driving performance... Efficient four-wheel drive, self-locking differentials of the driving axles, planetary wheel gears, contour following, sprung front axle, excellent maneuverability.
Work without wasting time... Capacious fuel tank for 12-14 hours of operation without refueling. Articulated frame for maneuverability due to a small turning radius. Effective assembly of units and assemblies for ease of control and maintenance.
Aggregation with any loop... Modern hydraulic system of the working equipment, three-point linkage of IV category in the basic configuration, pendulum hitch, drawbar and power take-off.
High economic efficiency... Affordable purchase price. There are about 40,000 Kirovets tractors in the country's park. Developed market for spare parts. High performance. Low cost of ownership.

KIROVETS high-powered tractors of the K-744R series are designed for:

basic and pre-sowing tillage,
efficiently work with seeders and seeding complexes for sowing both tilled and non-tilled crops

Also irreplaceable in the following jobs:

transport,
fertilization,
ensiling,
snow retention,
clearing roads.

POSSIBILITIES OF THE TRACTOR

High functionality, productivity, efficiency and reliability of the KIROVETS tractors of the K-744R series are characterized by high average annual operating time - 1500-3000 operating hours.

When purchasing expensive machines, many farmers ask themselves the question: is it worth choosing domestic equipment or is it better to give preference to imported machines? Consider a domestic unit that has good functionality and price. Find out what the K-744 is, what it is designed for.

The history of the tractor begins in 1924, when the Krasny Putilovets plant (now the Kirovsky Zavod) began to produce American tractors under the name Fordson-Putilovets. In fact, this moment marked the beginning of the Soviet tractor construction.

In the second half of the 30s, the production of the Universal-1 and Universal-2 tractors was set up. The first Kirov workers appeared only in 1962, when the plant started production of the first generation of agricultural tractors. Models K-700 and K-700A were presented. The second option had more horsepower.
At the same time, the first batch of 50 tractors left the plant only in 1963. In 1975, the second generation of agricultural tractors appeared. The K-701 model was presented, which already had 300 "horses". At the end of the 70s, the plant produced the first generation of Kirov workers intended for industrial work (K-703).

In the mid-80s, the third generation of agricultural tractors was released under the name K-701M. They differ in power (335-350 hp).

Exactly 10 years later, the 4th generation of tractors appears. The K-734 and K-744 models, which differed in a fairly average power (250 and 350 hp), were developed for export. It is 1995 that can be considered the year of birth of the 744 model. Further, after 5 years, the K-744R modification was released, which belonged to the 5th generation of tractors.

This model is a general purpose machine that is used for basic and pre-sowing soil cultivation. Effectively interacts with wide-cut seeding complexes, can work with various attachments.

The machine is designed for all types of agricultural work, as well as for the transportation of various goods over short and long distances. Can be used in industry or logging, utilities. The tractor is used for the repair and laying of the road surface, repair of water supply and sewerage.
We can conclude that we have a multifunctional machine on which a huge number of tasks can be assigned. It is this opportunity that expands the functionality of the tractor.

Did you know? The world's smallest tractor is in the Museum of Yerevan. Its length is 1 cm, while it can move on its own.

Specifications

This tractor model is quite capable of competing with its foreign counterparts in the category of technical characteristics, not inferior to them at all, and in what way surpassing them.

Dimensional and weight parameters

Dimensions:

length- 705 cm;
height- 369 cm;
width- 286 cm.

The standard weight is 13.4 tons.

The track width is 211 cm.The base is 320 cm.

Video: review of the K-744 tractor

Engine

The machine is equipped with the YaMZ-238ND5 model. It is a turbocharged, four-stroke, 8-cylinder engine. The rated power is 300 "horses" or 220 kW.

The operating power is slightly less and is equal to 279 liters. with.

The crankshaft rotational speed is 1900 rpm.

The cab has excellent all-round visibility, which is achieved by the central location of the driver's seat (there is also a second seat, which is located on the left). There is isolation from noise and vibration, as well as a built-in air conditioner.
Cab of the K-744 tractor Governing bodies:

Transmission;
brake pedals, clutch and accelerator (accelerator);
steering column, which enables the wipers to be turned on / off, as well as light control (high / low).

Dashboard:

lamps and indicators;
"Emergency gang" and parking lights;
turning on / off the fan, air conditioner and heating;
speedometer;
tachometer;
oil pressure and temperature;
ammeter;
voltmeter;
air pressure sensor in the system;
hour counter.

The undercarriage consists of the following elements:

clutch;
rear and front axles;
reducers;
cardan shafts with supports.

Permanent drive goes to the front axle. If necessary, the rear is connected, after which the car becomes all-wheel drive.

The torque is transmitted by cardan shafts. Power is supplied to the front axle through a single piece. To drive the rear axle, the tractor has an intermediate support at the tractor's articulation point.
A hydraulic drive is used to control the direction of travel. The frame is divided into two parts.

To ensure optimal traction characteristics, gearboxes and differentials were installed in the axles, through which the force is transmitted to the wheels through the axle shafts. In this way, a different speed of rotation of the wheels when cornering is achieved.

Brake system

Braking and control of the brake system is provided by the pneumatic system. It is used for separate control of axles and attachments.

Fuel tank volume and consumption

The fuel tank has a volume of 640 liters. Fuel consumption when operating at rated power is 174 g / l * h. At operating power, the consumption is 162 g / l * h. It should be understood that the indicated flow rate is the maximum. That is, at the rated power, the tractor will not consume more than 174 g / l per hour.

The maximum travel speed is 28 km / h and the minimum is 4.5 km / h.

To put an attachment on the machine, you need to have a factory attachment that will provide the function and control of additional parts.

The K-744 has a good high-performance hydraulic system with an axial piston pump that pumps about 180 liters per minute. Also, the hydraulic valve includes 5 sections, and 4 hydraulic lines are allocated for the needs of agricultural units.
As standard, the machine has a three-point attachment, which allows you to supply the following implements:

mechanical and pneumatic seeders;
all kinds of cultivators, including complexes that allow sowing;
various plows;
subsoilers;
towing devices of any type.

Important! Since 2014, tractor attachments have been fully compliant with international standards. This allows it to be installed on modern agricultural machinery.

Separately, it should be said that the special properties of the hitch make it possible to use the machine as a roller for laying asphalt, as a welding machine, as well as a loader.

a sufficiently large margin of safety, which allows you to work up to 2 thousand hours without mandatory inspection of equipment;
the equipment of the cabin, as well as the abovementioned conveniences, make it possible for the Kirov to compete with imported cars;
spacious tank and low fuel consumption;
in the event of a breakdown, purchasing the necessary part is quite simple and relatively cheap;
excellent functionality that many imported copies cannot compete with.

Minuses:

without doubling the wheels, the weight of the tractor leads to damage to the upper fertile layer, which is why, as standard, the machine is not the best option for carrying out agricultural work;
after installing attachments, there is a loss of power, which occurs due to the presence of flaws in the hydraulic system;
in some instances, plastic pneumatic tubes are installed in the braking system, which break after a year of active operation.

It is worth noting that the car has more pluses than minuses. The developers did a good job of improving the machine, therefore, in terms of functionality and comfort of use, it can be compared with imported expensive machines that are on our market. It is always worth remembering the price of the goods, since a domestic car will cost less than a foreign one.

At the moment, three main modifications are being made, namely:

Did you know? In the 50s of the last century, the famous Porsche company was engaged in the production of tractors. It is interesting that the founder of the company during the Second World War was engaged in the development of German tanks "Tiger" and "Mouse".

Now you know what the K-744 is, why this machine is more than competitive, and what disadvantages it has. Please note that the modifications have imported components, which is why, in the event of a breakdown, difficulties may arise both with the price and with the possibility of purchasing spare parts. There are also important differences between the standard equipment and the premium version, which are lower fuel consumption.

Kirovets K 744 is a productive Russian tractor that is still in demand in the post-Soviet space. The machine is widely used in farming, industry, construction and any other national economy. The machine can be aggregated with a variety of attachment options. The equipment has been modernized several times, and is still being produced in an updated form. The tractor is assembled in St. Petersburg at the "Kirovsky Zavod". Note that today this enterprise is considered the only plant in Russia for the production of heavy agricultural machinery. The Kirovets K 744 model is the latest car of a well-known company from St. Petersburg. The tractor turned out to be so popular that it was possible to arrange supplies to the foreign market. This tractor has a large set of advantages and capabilities, which we will consider in this article.

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Description and purpose

Kirovets K-744 is a high-performance machine, on the assembly line since 1995. Since 2002, the Kirovsky plant began to produce only this model, but in several versions. In this regard, the previous K-700, K-701 and K-703 vehicles were removed from the assembly line for obvious reasons. At the moment, the K-744 has four modifications. The tractor received the last major update in 2014. The upgraded machine is distinguished by higher traction characteristics, a modern cab, made in accordance with the requirements of comfort and safety, as well as multifunctional hydrostatic steering equipment. The Kirovets K-744 model is widely used mainly in agriculture. This tractor is aimed at a mass audience. It is often purchased by large logging companies, as well as utilities, builders and private entrepreneurs. In farming, this device is in demand in such operations as plowing the soil in various ways, towing trailers, loading and unloading. In construction and communal services, equipment is used as a loader, in repair and installation work. In road construction, the tractor mainly transports heavy loads, including concrete structures, since the machine has a high carrying capacity. The machine is perfectly adapted to harsh weather conditions. So, in agriculture, this is one of the few machines that is capable of completely processing an area of up to 5 thousand hectares in a short time.

Technical characteristics K 744

Traction class - 5
Tractor weight - 13.4 tons
Sizes, mm: Length - 7050, Width - 2865, Height - 3690
Track width - 2115 mm
Wheelbase - 3200 mm
Turning radius - 7200 mm
Engine type - 4-stroke 8-cylinder turbocharged diesel engine, YaMZ-238ND5
Power - 279 horsepower
Crankshaft speed - 1900 rpm
Average fuel consumption - 237 g / kWh per hour
Fuel tank capacity - 640 liters
Transport speed - 30 km / h
Tire sizes - 28.1R26
Alternator parameters - 2 kW
Oil tank volume - 125 liters
Power take-off shaft (PTO) - 155 hp with.
The lifting capacity of the main hitch is 8500 kg.

Device features and characteristics

The Kirovets K-744 tractor can be equipped with the following attachments:

Multiple plows
Seeders
Disc harrows
Subsoilers
Cultivators.

If necessary, the tractor can be equipped with different seeders - both mechanical and pneumatic. In addition, the tractor supports different types of cultivators - combined, disc, pawl and other modifications. As for the plow, this tool in the K-744 tractor can be used in two versions, which differ in the method of soil cultivation - both with turnover and with crumbling of the soil layer.

The Kirovets K-744 tractor has a simple and reliable design. During the creation of the machine, the developers eliminated the shortcomings of their predecessors, and maximally adapted the tractor to domestic conditions.

In particular, Kirov engineers took into account the following factors:

Adaptation to low-quality diesel fuel
Highly developed service base throughout the country, with the necessary spare parts
Adaptation to any type of soil, including hard virgin soil.

The tractor is notable for its good maintainability, especially against the background of its foreign competitors. Even a novice worker can perform maintenance on the machine. To maintain the machine in working order, the experience and strength of our own auto repair shops, which are in agriculture, are enough.

The Kirovets K-744 tractor has received an extensive engine range, consisting of domestic and imported diesel engines. In particular, we are talking mainly about engines produced by YaMZ, as well as Mercedes-Benz and Cummins. They differ in power. The most basic version has a YaMZ engine with a capacity of 300 forces, and the most productive one is equipped with a Mercedes-Benz engine with a return of 428 hp. with. However, the most equipped version with the Russian YaMZ engine develops almost the same amount - 420 hp. with. At the same time, the maximum speed is electronically limited to 30 km / h, and the speed when reversing reaches 20 km / h. It should be noted that Kirovets K-744 with Russian engines belongs to the "Standard" group, while modifications with imported internal combustion engines are positioned in the "Premium" group.
Kirovets K-744 is a versatile wheeled tractor with two drive axles, one of which (rear) can be turned off if necessary. So, at the heart of the front axle is a suspension with semi-elliptical springs and hydraulic shock absorbers. The rear axle is rigidly attached to the frame for added strength. As for the tires, tires with a dimension of 30.5R32 are suitable for such a tractor. A manual transmission with 16 forward and 8 reverse gears is used as a gearbox. The braking distance from a speed of 30 km / h is 13 meters.
Kirovets K-744 received a well-thought-out hydraulic system, as well as a reliable and convenient hinged three-point device. Its carrying capacity is 8.5 tons. The hitch is driven by a five-section spreader made by Bosch. In addition, the design of the hydraulic drive is reinforced with a drawbar and a hydraulic hook. To connect attachments, six breakaway couplings are used, which are located on the rear frame. The basic version of the piston system has a capacity of 180 liters. with.
The Kirovets K-744 tractor turned out to be very compact, and this had a positive effect on the maneuverability and ease of operation in confined conditions. So, let's pay attention to the dimensions - the length is 7.5 meters, and the width with the edges of the wheels is about 3 meters. The ground clearance of 520 mm, large wide-profile wheels, minimal body overhangs and powerful motor protection, coupled with all-wheel drive, allow you to overcome any off-road obstacles.
The machine is equipped with a cab with the highest level of comfort. It is noteworthy that the cabin is so spacious that it was made for two. The driver and his assistant will appreciate the spacious and functional interior with a built-in frame, thanks to which the cab will not buckle if the tractor rolls over. This greatly improves safety. For coziness and comfort, multilayer sound and heat insulation is responsible, which helps to reduce noise and vibrations. There is also air conditioning and heating, which keep it warm or cool depending on the season. Wide visibility is ensured by a wide glazing area. There are also sun visors in the cockpit. In addition, the latest modifications of the Kirovets K-744 tractor can be equipped with the GLONASS navigation system, as well as a large number of adjustments to the driver's seat and steering column, as well as a medical system with acoustic speakers.
As additional equipment, the manufacturer offered an additional set of wide-profile tires, a more powerful power take-off shaft, tracked chassis, additional wheels for double chassis, as well as a swing trailer. The service quality of the tractor meets all international standards, and is no different from more expensive foreign competitors.

Photo K 744

Petersburg plant has been producing the Kirovets tractor since 1995. This branch of the Kirov plant has retained all the technical features of the well-known series, K 744, of heavy tractors. The development of the first models was carried out with the participation of German specialists, which positively influenced the impeccable functionality of the unit and the comfort of the driver's cab. The basis was the K 700 M1, which, by that time, needed a worthy replacement. I would also like to mention the new generation of tractors "Baltiets" of the SpetsMash plant.

Advantages of K - 744

This multifunctional heavy-duty machine of the fifth traction class proved itself so well that the series continues to this day. All four versions are united by a powerful engine, thanks to which the tractors are capable of performing work that is beyond the strength of other equipment, in difficult conditions and with any attachments.

The fourth generation of Kirovites received a "residence permit" from farmers and workers, from miners and lumberjacks, from road workers and in many other professional spheres.

Kirov tractors with article K

Thus, the originally produced Kirovets tractor was improved relative to the basic Kirovets K-700 model. Today the model range of this agricultural machine is represented by tractors of the K700A, K701, K702, K703, K708, K744, K744R, K9000 series.

Design features

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

Power plant with a capacity of 300 hp consumes 174 g / l hour at a maximum crankshaft rotation frequency of 1900 rpm. The large volume of the fuel tank, 630 liters, makes it possible to work for a long time without refueling. The 24-speed Powerschift transmission supports 16 forward and 8 reverse speeds.

With the help of hydraulic transmissions, gear changes are 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 mobility and maneuverability are given to the tractor by a frame articulated by a system of hinges. 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 driving axles, made of high-strength steel alloys with a rigid suspension type and especially a limited-slip differential and planetary-type final drives, distinguish the series from other similar units. The pneumatic system allows separate control of the trailed equipment and both axles.

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

Attachments are attached using a three-point scheme. The trailers are attached with a pendulum mount.

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 allow the tractor to work with various attachments: cultivators, seeders, harrows, plows, rippers

Advantages and disadvantages

B Due to its unique technical capabilities, the K-744 is the leader in its traction class.

Advantages:	Flaws:
1. Competently calculated design and working units ensure the quality and durability of the unit. 2000 hours of work without repair, guaranteed by the manufacturer, in fact, is more than 6000 hours of trouble-free operation.	1. Despite the measures taken to protect the fertile soil layer from impact, the large weight of the machine still damages some areas. Therefore, field work is often performed with lighter equipment.
2. A comfortable seat for the driver and a large fuel tank make it possible to work continuously for up to 14 hours at maximum power.	2. The need to install sensors to control oil loss when working with attachments
3. Convenient access to mechanisms and parts requiring replacement. The versatility of individual parts and units of the unit.
4. Wide functionality. Possessing a powerful generator and the ability to aggregate additional equipment, in addition to traditional use, the tractor acts as a loader, asphalt roller and can be used for welding.

Nevertheless, even European farmers pay tribute to our machines by purchasing "Kirovets" for their farms, rightly assessing their advantages over the equipment of other manufacturers.

Series tractors: P, P1, P2, P3

Design engineers are constantly working to improve the technical qualities of the machine. The P series engines are even more powerful than the basic version. Each new modification of the lineup has its own differences.

The K-744R has a sprung suspension of the front axle and a 306 hp Cummins 300 power plant. with a torque of 2000 rpm. Additionally, the cabin is reinforced with a strong frame.

K-744 P2 is equipped with a Mercedes engine. A slight decrease in crankshaft speed to 1800 rpm is compensated by a more powerful power plant, up to 401 hp, mounted according to German technology.

And the most powerful final model - K-744 P3 - has all the advantages of the previous version, supplemented by a more advanced hydraulic valve and the ability to install heavy ballast.

The Kirovets 744R tractor is ideal for tillage. When plowing a field with a plow, this technique allows you to cultivate up to 150 hectares per day.

Tractor kirovets 744r series

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: К744Р1, К744Р2, К744Р3, К744Р3-1, which differ in power and weight of the tractor.

The general for the designated Kirovets models is:

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

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

The average price for modifications to the K 744R is from 6 million and above. It all depends on the configuration of the model. Used cost depends on the year of manufacture and the real state of agricultural machinery.

744r series: specifications

The engine power of the Kirovets tractor is in the range of 300-428 horsepower.
Machine weight ranges from 10 to 19 tons.
The specific fuel consumption of the tractor is from 157 to 162 g / hp h.
The highest performance of the hydraulic system of the working equipment is 180 l / min.

The tractor is equipped with a power plant, due to which it is possible to mount a trailer and attachments. Also, the technique has a power take-off mechanism. It is possible to install a passenger seat next to the driver's seat.

The technical characteristics of Kirovets tractors are constantly updated, which corresponds to the policy of multifunctionality and comfort, followed by the manufacturer to support the competitiveness of agricultural machinery of this brand.

Dimensions and weight of the K 744R model range

The photo shows the main overall dimensions of the modification P

Dimensions:

Marker	Dimensions (edit)	K-744R1	K-744R2	K-744R3	K-744R4
K	Clearance mm	480	500	500	500
B	Wheelbase mm	3750	3750	3750	3750
L	Length mm	7100	7350	7350	7350
H	Height mm	3845	3876	3876	3876
D	Track mm	2115	2100	2100	2100
W	Width mm	2865	2875	2875	2875

Turning radius on the outer wheel:

	K-744R1	K-744R2	K-744R3	K-744R4
Radius mm	7980	7980	7980	7980

Tires:

	K-744R1	K-744R2	K-744R3	K-744R4
Tire size	28,1R26	30,5R32	30,5R32	30,5R32

Operating weight:

Weight on single wheels kg.	K-744R1	K-744R2	K-744R3	K-744R4
Completion "Standard"	14 900	15 680	17 500	17 500
Package "Premium"	14 370	15 220	17 000	17 000

Power take-off:

Transmission:

Today, additional devices allow the Kirovets tractor to be used as:

Tractor;
Mobile welding machine;
Loader;
Ice rink.

The modernized series of tractors Kirovets K-9000, which was launched in 2008, combines the best of domestic developments, as well as the innovative experience of European agricultural engineering.

Complete set with engines

Engines made in Russia.V-shaped, 8 cylinders:

Parameters	K-744R1	K-744R2	K-744R3	K-744R3-1
Engine	YAMZ-238ND	8481. 10	8481. 10-02	8481. 10-04
Power	300 h.p.	350 h.p.	390 h.p.	420 h.p.
Volume	14.86 l	17.24 l	17.24 l	17.24 l
Shaft speed	1900 rpm	1900 rpm	1900 rpm	1900 rpm
Max. torque	1280 Nm	1570 Nm	1860 Nm	1960 Nm
Fuel consumption	162 g / hp h (220 g / kW h)	157 g / hp h (213 g / kW h)	157 g / hp h (213 g / kW h)	157 g / hp h (213 g / kW h)

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

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

Parameters	K-744R2M	K-744R3M	K-744R3M-1	K-744R4M
Engine	ОМ 457 LA / E2 / 4	ОМ 457 LA / E2 / 3	ОМ 457 LA / E2 / 4	OM460LA
Power	354 h.p.	401 h.p.	428 h.p.	428 h.p.
Volume	11.97 l	11.97 l	11.97 l	12.82 l
Shaft speed	1800 rpm	1800 rpm	1800 rpm	1800 rpm
Max. torque	1750 Nm	1900 Nm	2000 Nm	2000 Nm
Fuel consumption	154 g / hp h (210 g / kW h)	154 g / hp h (210 g / kW h)	154 g / hp h (210 g / kW h)	154 g / hp h (210 g / kW h)

Engine photo: Mercedes-Benz. Inline, 6 cylinders ОМ 457 LA

Pictured Automated transmission "T5"

Modifications and improvements of the automatic gearbox T5:

Improved electrical control and automation unit.
Ranging is now precision pneumatics.
The pressure in the control system is increased.
Increased consumption for lubrication and engine cooling.
Clutch teeth are reinforced.
Added additional disks in the package to speed up switching the on-off mode.
A new, improved clutch drum design provides reduced heat when engaging and disengaging.
New bearings are provided to extend service life and transmission oil.
The MPP rail has a reinforced sealing.

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

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

In the picture: KOMANDPOST joystick-shifter

A joystick-shifter and several buttons provide the choice of the required operating range and transmission.

Hydraulic system

	Mechanical cable levers provide convenient remote control of the hydraulic valve. The flow control knobs on the sections are located behind the driver's seat.
Hydraulic distributor "Bosch-Rexroth" five-section, located under the cab. One of the sections is designed for linkage control. Enabling the “EHR” option replaces the section with an electro-hydraulically controlled one.
	The BoschRexroth pump (axial piston) is driven by a drive gearbox (OLTC). Automatic pump delivery control, productivity - 180 l / min.
Breakaway quick couplings for external equipment are now located on the rear frame. Provides additional protection for high pressure hoses.
	A diagram of the installation of free drainage and drainage lines with a detailed description of the technology is given in the instruction manual. The tractor spare parts and accessories are supplied with all the accessories necessary for installation.
Free drain line that is installed on the tractor.

Tractors of the K-744R series are equipped with a modern high-performance hydraulic system of the working equipment (GDO). The LS system with axial piston pumps ensures highly efficient operation with modern seed drills thanks to the controlled flow.

GRO for tractors of the K-744R series - basic parameters:

hydraulic fluid flow - maximum 180 l / min;
at the outlet of the quick coupler pressure 185 bar;
hydraulic system pressure - max. 210 bar;
four hydraulic lines adjustable for aggregation with hydraulics of additional attached equipment;
drainage and free drain lines.

Four sets (pairs) of quick-connect breakout devices are designed to connect the necessary hydraulic lines of agricultural machines or implements connected to tractors to the hydraulic lines of the tractor. Breakaway devices prevent oil leakage from the high pressure hydraulic hose in the event of an emergency disconnect or rupture.

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

To reduce losses in the hydraulic system and exclude overheating during work with a seeder, which is equipped with a fan drive hydraulic motor, the tractor spare parts system provides a set for free drainage (bypassing the hydraulic valve directly into the hydraulic tank) and an additional set of hydraulic motors drainage.

Pneumatic system

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

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

Specific fuel consumption

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

To calculate the fuel consumption in grams per hour, you need to multiply the specific consumption parameter by the rated power. Further, 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 - the standard is 0.86. The result of the calculations is the 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 / kW h)
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)

In real operation, fuel consumption is much lower than according to the calculated formula. The reason is that the calculation is carried out for the conditions of maximum productivity of the equipment - loading with additional equipment, working in a straight line without stopping. In the field, any modification of the Kirovets tractor consumes much less fuel.

Front and rear axles

In the modification of the P series tractors, the weakest points have been changed:

Strengthening the junction of the carrier and the hub.
Improved gear manufacturing accuracy.
The strength of the fastening of the cuff cover on the carrier is increased.

Energy saturation

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

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

According to the advertising booklet of the Kirov Machine-Building Plant, the Kirovets K-744R power-packed all-wheel drive wheeled tractor is the most frequently purchased tractor in Russia. The series of this model is represented by modifications K-744R1, K-744R2 and K-744R3, which differ in engine power. It is 300-390 hp. Also, the differences in the modifications of the K-744R tractor are in the availability of attachments for mounted units.

Cabin

Petersburg Tractor Plant has started production of Kirovets tractors with a modified new cab of the K-744R series since January 2016. This stage of modernization is aimed at significantly improving the working conditions of the tractor driver.

The main differences of the new cab are enhanced sound insulation, widening of the field of view due to panoramic windows, a modified steering column with a built-in multifunctional dashboard, the driver's seat has become more convenient and comfortable, the air conditioning and ventilation system has been improved and optimized, and a modern audio system has been added.

Photo: Panoramic glass - the viewing sector has been expanded, tinting from the sun's rays is provided.

Video: K 744R1 cabin overview

Improvements:

The steering column has been improved - the dashboard is integrated into it.
The driver's seat has become comfortable and comfortable.
Improved cabin soundproofing.
The parameters of the ventilation and air conditioning system have been optimized.
A modern audio system is provided.

Basic complete set of tractors kirovets k 744r

The basic configuration of the tractor includes an attachment of the 4th category with a lifting capacity of 8.5 tons, as well as Waltershield lower link hooks. The hydraulic system consists of 8 outlets of the working hydraulic lines, responsive to the load. This system is called Load Sensing. The working fluid enters the system by means of a pump, only when it is necessary for the operation of attachments.

The driver's booth is made of an inseparable metal crate, located on rubber shock absorbers. Protective plates are provided to ensure operator safety in the event of the tractor overturning or the collapse of heavy objects, such as rocks when working in quarries. This protective technology has the international name Falling Objects Protective Structure.

A distinctive feature of Russian-made Kirovets tractors from their Chinese counterparts is the use of forging, rather than rolling, in the technological processing of the machine's component parts. Gears, shafts and body parts are produced by the plant at the expense of its own facilities. The production process is automated, and there is a strict computerized quality control system for parts.

Although the equipment and software in the production are German, all the parts bear the stamp of the Kirov plant. Forging differs from rolling in the reliability and fundamental nature of the production process. In addition, in the manufacture of parts for Kirovets, chemical treatment of mechanically finished parts is used, in particular, sulforation, saturation with vanadium.

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 terms. An important feature is that the cost of cultivating one hectare on this agricultural machinery is minimal.

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

Photo. Advantages of the Kirovets K-744R Tractor

Full compliance with established safety standards and ease of use:
- high ergonomics;
- convenient transmission control;
- the operator's seat is located in the center, which provides comfortable tractor control and excellent visibility;
- air conditioning and a well thought-out heating system guarantee operator comfort in all weather conditions;
- reinforced safety cage meets all established labor protection standards.
Engine power is determined by the following parameters:
- economical turbodiesel of six and eight cylinders with a capacity of up to 428 liters per second;
- torque with a margin of up to 36 percent - up to 2000 Nm;
- efficient engine starting system at low temperatures;
- modern cooling system;
- installation of engines from well-known manufacturers is provided - YMZ, Cummins, TMZ, Mercedes-Benz.
Transmission - mechanics with hydraulics for four ranges. The ability to change gears without interrupting the traction power flow within the range under load - 16 forward and 8 reverse.
All-wheel drive and self-locking drive axles provide high driving performance.
The volume of the fuel tank guarantees non-stop operation for 14 hours without refueling.
The excellent maneuverability of the tractor is provided by the articulated frame, which allows for small turning radius.
There is a possibility of aggregation with various loops.
The tractor is equipped with a modern hydraulic system for working equipment.
Equipped with a Category 4 three-point linkage (basic configuration), pendulum hitch and PTO.

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

Video: Review of tractors Kirovets K744R

Video: Feedback on the work of Kirovtsev of the K-744R series

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Some 15-30 years are left before the advent of robotic tractors, but for now, modern machines remove the lion's share of the load from operators, reducing the influence of the human factor on productivity. In less than 100 years, there has been a transition from primitive to comfortable tractors, in which today conditions are much better than in premium machines of the 40s and 70s of the 19th century.

The ancestor of the discussed technology was produced at the Kirov Tractor Plant. The K-744 tractor, the technical characteristics of which, even with the development of modern technology, have few analogues, is still the most powerful 5th generation tractor.

The release of the modernized tractor, as well as its analogues, began in 1995, after the restructuring, and already using German technologies.

General information, purpose, scope

Today the Kirovets K-744R2 tractor is produced in 4 versions corresponding to 5-8 traction class. 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 the transportation of goods, heavy and oversized, therefore it is used at 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 structure was used as a base for the manufacture of loaders, forest shooters, graders, rollers - only 17 types.

Advantages and disadvantages

After the modernization, little remained of the old Kirovets: the components, assemblies and appearance have undergone changes. It has gained many advantages, especially for the operator's workplace:

comfortable cabin (high noise insulation, computer control, comfortable chair);
reduced consumption of fuels and lubricants;
triple safety factor of the engine;
modern hydraulic system that allows the use of all types of attachments.

Disadvantages are determined by design features:

when working with heavy attachments, power decreases;
Due to its heavy weight, the tractor exerts a strong load on the soil, therefore, for its use in agricultural work, it is necessary to use twin wheels.

The advantages of the K-744 tractor include a comfortable cab

Modifications

The model range of the "R" series includes 4 modifications, different in engine power, which determine the traction class:

K-744R1. It is characterized by the most economical fuel consumption. Engine power is 306 liters. with. The rigidity and damping of the front axle has been increased due to its suspension structure. An additional frame is installed on the cab.
For the K-744R2 tractor, the technical characteristics of the engine have been increased to 350 hp. with., which corresponds to 6 traction class. He can use heavy attachments, which significantly increases the range of work performed. Hydrostatic control is also used, which virtually eliminates operator effort.
K-744R3. A 400 hp motor is built into this modification. with. (8 traction class). It is not only the power of the motor that increases productivity: the model has built-in air cleaners of high dust capacity, a hydraulic pump that regulates the liquid flow. It can be used with heavy equipment, for which it is possible to install additional ballast.
K-744R4. Engine power 428 hp with. The most powerful tractor in this range. Corresponds to 8 traction class. Full set.

When choosing and buying equipment, you need to pay attention to the climatic production and configuration of the Kirovets K-744R2 tractor:

"Standard". The basic set includes: 3-point hitch with quick coupler (ISO category IV N), pull-on shackle, hydraulic hook.

"Premium". Additional equipment is selected individually, as a rule, this is a wheel doubling system, installation of optional equipment (hydraulic reducer, OM system, side PTO and cylinders, drive pulley, balancers, half-track).

Technical characteristics of all modifications

Tractor diagram

Device. Distinctive features

The engine can be installed in two types:

Domestic - YaMZ or TMZ 4-cylinder, with a capacity of 300-400 liters. sec., torque 1800 rpm;
Foreign - Mercedes or Cummins 6-cylinder, with a capacity of 306-428 liters. sec., torque - 2000 rpm. and a turbocharging system.

All types of engines are designed in accordance with the requirements of the ISO 9001 quality system, and have high safety indicators, high efficiency (up to 92%), and are environmentally friendly. Cooled by a water-oil system and equipped with a pre-starting engine. At a specific consumption of 162 g / l. s. * hour and a tank volume of 640 liters of fuel is enough for 10-13 hours of work, which is convenient for employment at remote sites.

The frame is articulated, the front axle is reinforced with a sprung suspension. Stability is added by using half frame weights.

Chassis

Transmission - 24-speed gearbox (16/8 gears). The drive axle is front, but when a certain degree of load is exceeded, the rear is connected, and the tractor becomes an all-wheel drive model. The processing and chemical composition of the gear rims of the gear wheels have been changed, due to which the distribution accuracy and the load in the axles are increased.

Hydraulics

There are two advantages here that determine the capabilities of the entire system:

5-circuit system;
power of the axial piston station 180 l / min.

When choosing a tractor Kirovets K-744R2 in the "Premium" configuration, the structure will be supplemented with PTO splines of various diameters, which increases the type and type of attachments.

Maintenance and repair

Vehicle operation without maintenance within the time specified by the manufacturer is prohibited! According to the requirements, the equipment must undergo a multifaceted service:

Every shift or every 10 mth - check oil, fasteners, fuel.
Seasonal - in spring, at a steady temperature of 5-6 ° C, in autumn at t (minus) -5 ° C.
By operating a certain number of engine hours.

The main type of preventive maintenance - running-in - is used for a new tractor or that has undergone major overhaul (replacement of a unit or unit). Inspection and troubleshooting are carried out in three stages: when preparing the tractor for running-in, during running-in and after it.

Each main unit has its own preventive maintenance schedule. The types and frequency of work are indicated in the operating instructions:

engine;
pneumatic systems;
wheelbase.

Manufacturer

The first Fordson-Putilovets tractor, the K-700 prototype, was produced using American technology. After him, the models "Universal-1" and "Universal-2" appeared. In 1962-63, 50 Kirovtsev rolled off the assembly line, then it was a tractor in 2 modifications, differing in engine power. Constant improvement led in the 1990s to the appearance of the K-734 and K-744 models - the basic tractors, which after 5 years became the modern 5th modification of the K-744R.

Today JSC Kirovsky Zavod is an industrial group, which directly includes the Petersburg Tractor Plant.

Video: Tractor K744r2 Standard 350 hp

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