The DT-75 tractor is a tracked vehicle that has been produced in the Soviet Union since 1963. The technical characteristics of the tractor allowed it to perform various production tasks. The second generation of these machines received even more power, which significantly expanded the functionality of the equipment. DT-75 tractors were produced in Volgograd and on the territory of Kazakhstan.

Thanks to the powerful power plant, the tractors could be used as a bulldozer, act as a tractor and be used for plowing fields. Light weight and wide tracked bed provided the vehicles with good cross-country ability and maneuverability... Due to these features, the DT-75 tractor was most widely used for field work and logging.

Equipment device

The first models of the DT-75 were equipped with four-cylinder diesel engines SMD-14. These units gave out power of 75 horse power and had a work resource of 3000 hours.

Tractor DT 75

Subsequently, the power plant was replaced by an improved engine from this series SMD-14NG. New motor possessed the same technical characteristics as its predecessor, but produced more power - 80 horsepower.

For the operation of equipment in regions with a cold climate and work in winter period, a cold engine start system was provided. Throughout its history, the tractor has been modified several times. More powerful diesel units were installed on the second generation of machines.

The base for the DT-75 tractor is a metal composite frame. It consists of two side members, which are interconnected by metal pipes. The main components of the tractor are attached to the frame: roller mechanisms, suspension, caterpillar carriages, blocks of guide and driving rollers.

The machine's transmission consists of a four-way gearbox, a two-disc clutch of a closed type and band floating brakes. The gearbox provides 7 forward and one reverse speeds.

To increase the traction performance, a travel reducer, a single-stage reverse gearbox and a planetary gearbox were installed on the tractors to increase the torque. It was these features that made it possible to install the blade and use the machine as a bulldozer.

Installed on a tracked tractor and PTO (power take-off shaft), it was driven by a creeper and a gearbox to increase the torque. By the way, these units were mounted on the front wall of the gearbox, but were separated into a separate unit.

Tractor DT 75 N

The DT-75 tractor had a two-seater sprung cab. High tightness provided protection against noise and dust. The driver's seat had the ability to change its configuration. For comfortable work, a ventilation and heating system was installed. The safety cage was responsible for the driver's safety.

As attachments on the DT-75 tractor can use various target units. This is facilitated by hitch, rear linkage and hydraulic system of separate-aggregate type. This gives the machine the ability to use a plow, bulldozer, seeder, harrow and potato harvesters.

In addition, the machine can be aggregated with additional equipment side semi-mounted type. This allows the tractor to be turned into a paver or loader. The wide range of DT-75 capabilities includes road, construction and drilling operations.

Specifications:

Mods overview

Tracked tractor DT-75, became a prototype for the whole lineup... The cars were produced at different times, but the designers made significant improvements to each version. Let's take a look at the most outstanding cars from this series.

DT-75M

This tracked tractor has been produced in Volgograd and Kazakhstan since 1967. The car has noticeably changed appearance... This manifested itself in the installation of a higher cabin, which, in contrast to the basic version, shifted to the right.

A fuel tank was mounted on the left side of the cab. Manufacturers added volume to it and it began to hold 315 liters of fuel. This need was caused by the installation of more powerful engine - A-41, with a capacity of 90 horsepower.

DT-75B

The machine has been specially designed for working in swampy soils. This tracked tractor was produced by the Volgograd plant and was used in peat mining areas. In connection with such a narrow specialization, the designers have made the following changes.

The width of the track was increased.... This made it possible to significantly increase the cross-country ability of the vehicle. In addition, this solution reduced the ground pressure of the equipment. For comparison, for the base DT-75, this figure was equal to 0.44 kg per square centimeter. For DT-75B, these data decreased to 0.24 kg per centimeter.

Tractor DT 75

The power plant has changed, began to be used diesel engine SMD-14NG with a capacity of 80 horsepower.

In connection with work in difficult conditionsThe frame was supplemented with pallets to protect the engine and transmission from mechanical damage.

DT-75K

The tracked tractor was designed for use on steep slopes, the angle of inclination of which could reach 20 degrees. Thanks to structural improvements, the machine found its application in the mining industry.. Chassis was completely copied from the DT-75B. This provided the car with reliable traction.

A diesel unit SMD-14MG was installed as a power plant. To reduce the risk of the machine tipping over when working on steep slopes, a safety system has been designed and installed.

The tractor was different and internal device cabins. It was double, the seats were installed not side by side, but opposite each other. The position of the tractor was controlled visually using the roll indicator.

DT-75S

The purpose of this technique is agricultural and road work. Of the features, a six-cylinder turbocharged engine of the SMD-66 series can be noted.

Traktol DT 75 MLK

The power of the unit was 170 horsepower, the rotational speed was 1,900 rpm. In addition, the car was equipped with a resistance torque converter. These features allowed the car to be easily transformed into a bulldozer.

The DT-75 tracked tractor was also produced on a wheel drive. Several of these machines left the assembly line of the Kazakhstan plant. The technique was produced in limited series and was used mainly in agriculture. The wheelbase was received by the following machines: DT-75MLK, DT-75DK, DT-75KP and DT-75KPM.

In 1998, a tractor plant located in Kazakhstan declared its bankruptcy. At present, the DT-75 tracked tractor is produced only in Volgograd under the Agromash 90TG brand. The machine is equipped with a 94-horsepower diesel A-41SI-02, with a rotational speed of 1,750 rpm. Like all its predecessors, the technique is designed for multipurpose use.

Advantages and disadvantages

The DT-75 tracked tractor is a truly powerful and functional machine. Technique made in times Soviet Union, copes well with modern tasks.

Low weight of the machine and extremely low pressure on the ground allows using the machine in the fields without fear of damage to the fertile soil layer. All modifications of the machine are distinguished by economical fuel consumption, reliability and ease of operation.

Among the shortcomings, one can note the frequent failure of the hydraulic pump and the incorrect operation of the built-in generator. Like most soviet cars, you can observe the flow of oil through the stuffing box seals.

DT 75 was the most popular crawler bulldozer for several decades domestic market (3 traction class). The model has been widely used in various fields, and individual consumers still use older versions. The modernized bulldozer production continues. The technique, which has received many new elements (engine, cab, transmission), has retained its main advantages: reliability, availability and simple design.

DT 75 production was carried out by the Volgograd Tractor Plant. The designers have repeatedly modified the model, improving various performance characteristics, which allowed the bulldozer to maintain its popularity, despite the abundance of competitors.

DT 75 is characterized by a wide range of applications. The machine is actively used on repair and construction sites, in industry and agriculture. The bulldozer works effectively on slopes with a slight steepness (up to 20 degrees). Excellent cross-country ability allows you to use equipment off-road, wet soil and swamps. Additional attachments increase the capabilities and functionality of the model.

DT 75 is suitable for the following operations:

• uprooting small trees and stumps;
• development, loosening and movement of soil over short distances;
• transportation of bulk materials;
• irrigation and drainage manipulations;
• loading and unloading works;
• cleaning highways and streets from snow drifts, dirt, earth.

Content

Video of the DT 75 bulldozer in operation

Modifications and features

The DT 75 family includes many upgraded versions and modifications. The most famous bulldozer variations are:

1. DT 75B is a swamp modification that differs from the basic version by the ability to adjust the position of the guide rollers and wider tracks. The changes allow you to use the bulldozer on swampy and sticky soils with maximum efficiency;
2. DT 75K is a version with improved stability and the ability to work on slopes up to 20 degrees. The bulldozer is equipped with an updated transmission and an upgraded fuel supply system.
3. DT 75N - version with SMD-18N motor;
4. DT 75D - modification with the A-41 unit;
5. DT 75RM - a variation with the RM-120 engine.

Bulldozer modifications are as popular as the basic version. The demand for the model is due to the following features:

• simple design that allows for repairs in the field;
• long service life and high maintainability;
• powerful power plants. With their help, the bulldozer can solve the most difficult tasks;
• upgraded tracked chassis with increased cross-country ability;
• variety of attachments;
• ease of control (levers are located next to the operator);
• the cheapness of the equipment itself and spare parts for it.

Specifications

Dimensions:

• length - 4400 mm;
• width - 1850 mm;
• height - 2710 mm;
• ground clearance - 326-380 mm;
• tracked base - 1622 mm;
• track width - 1330 mm;
• track width (basic version) - 390 mm.

How much does it weigh?

The total mass of the bulldozer is 7400 kg. The technique is capable of speeds up to 12 km / h and moving loads weighing up to 3000 kg.

The model is operated with various dumps with a maximum weight of up to 900 kg. The blade speed is 150 mm / s, the maximum lift is 6000 mm.

A photo

Device and features of operation

Numerous mechanisms and elements of DT 75 are fixed on a welded frame, consisting of 2 longitudinal spars of rectangular cross-section. Additionally, they are cross-linked for greater reliability. Gearbox and rear axle positioned in the rear area, which makes the dozer more stable.

The undercarriage of the machine is characterized by increased elasticity. This element is unified with the DT 54 bulldozer. At the same time, the suspension is supplemented with springs that reduce the trim of the equipment. Each track has 42 quick-change links. Among the features of the track, a special gearing system should be distinguished, equipped with a variety of lugs covering the entire length of the element.

The DT 75 transmission is based on a 15-speed manual gearbox (10 forward and 5 reverse speeds). Such an abundance of modes allows you to choose the optimal stroke for specific conditions and reduces the load on the machine elements. The transmission uses a dry 2-disc clutch for efficient power transmission.

Band brakes provide high quality braking even when driving fast.

A wide range of attachments is offered for DT 75. The devices are controlled by a hydraulic system with 2 working cylinders. The bulldozer has a blade angle of up to 270 degrees, which allows you to form embankments or remove snow from the road. For each pass, the machine rakes up a layer of soil up to 100 mm. The model is completed with the following attachments:

• rotary blade;
• fixed blade;
• universal blade for various types of work.

To work with additional equipment, a power take-off shaft in a closed cast iron housing is used. The element is designed as a 1-stage gearboxes with cylindrical gears. The rotation speed is 9 revolutions / sec.

Initially, the DT 75 was equipped with a pressurized closed cab borrowed from the GAZ 51 car. Later, cabs with increased height and control levers directed towards the driver appeared. The unit went through several upgrades, the latest version was distinguished by increased sound insulation and assumed the installation of a heating or air conditioning system as an option. The cabin accommodated 2 people and was equipped comfortable seating with special handles for adjustment. The monitoring and control devices were ergonomically operated and reduced operator fatigue. There was not enough space in the cockpit, so 2 people with a dense physique became cramped in it. The exterior trim did not involve decorative elements, and many details were excluded from the design (rear-view mirrors, turn signals). Of the light optics, there were only 2 round headlights above the hood and 2 lanterns installed above the glass in the rear. Cleaning windshield was carried out using a wiper located on the upper window frame. In terms of comfort, the bulldozer was seriously inferior to Western competitors, but it provided good working conditions.

DT 75 has good maintainability. Currently, there are no problems with spare parts for the bulldozer, and the cost of repairs is minimal. The main difficulty for owners of equipment is its delivery to the place of operation. In rural areas, the problem is quickly resolved, for the city you will have to order special transport with a low frame so as not to damage the asphalt.

Engine

DT 75 comes with several options power plants... The most common versions are:

1. SMD-14 - the basic version of the motor (installed on the first modifications). 4-stroke compressorless engine with fluid system cooling and vortex chamber mixing functioned on diesel fuel... Engine power - 75 HP

2. SMD-18N - installed on later modifications (the most common version). The 4-stroke diesel engine was liquid-cooled (the coolant or antifreeze circulated through the radiator), turbocharging and direct fuel injection.

Characteristics of SMD-18N:

• working volume - 6.33 l;
• rated power - 70 (95) kW (hp);
• rated speed - 1800 rpm;
• number of cylinders - 4;
• cylinder diameter - 120 mm;
• specific fuel consumption - 224 (165) l / kW per hour (l / hp per hour).

3. А-41 - 4-stroke diesel unit with direct injection, liquid cooling system and vertical arrangement of cylinders. The engine features a 2-valve timing mechanism and cast iron sleeves with a special surface treatment.

Characteristics of the A-41 motor:

• working volume - 7.43 liters;
• rated power - 90 hp;
• rated speed - 1750 rpm;
• number of cylinders - 4;
• cylinder diameter - 130 mm;
• compression ratio - 16.

4. RM-120 is a less common diesel unit.

The latest versions of the DT 75 were also equipped with Sisu engines (Finland) with a power of 98 hp.

For operation in the northern regions, it was planned to install pre-heater... All bulldozer motors were not demanding on fuel quality and had a high margin of safety.

Capacity fuel tank was 360 liters.

Price

The new DT 75 bulldozer is available at a price of 1.2 million rubles (made to order). Present on the market great amount used options. The final cost here is determined by many factors (operating time, condition, history, equipment). Average price tags for used DT 75 models:

• 1985-1987 - 110-190 thousand rubles;
• 1992-1994 - 180-250 thousand rubles;
• 1999-2000 - 290-330 thousand rubles;
• 2005-2007 - 410-520 thousand rubles.

The technique in question first rolled off the assembly line back in 1984. He worked in agriculture and belonged to the 3rd traction class equipment. This is the legendary DT 75 tractor, which could carry out work with attached or semi-mounted equipment. Plowing, cultivation, sowing, harvesting agricultural crops - this is not a complete list of its capabilities.

Get acquainted with the technique in detail and find out what kind of DT 75 specifications this article will help.

About powertrains

There are several configurations of the tractor. Depending on this, power units are installed. Consider the options for installing motors:

1. DT-75N with a diesel power unit SMD-18N. This configuration option is made by special order.
2. DT-75D with the A-41 (D-440-22) power unit.
3. DT-75RM with a diesel engine RM-120.

Use of DT-75

Today, the DT 75 tractor photo, which you see in the article below, works not only in agriculture. It is used in road construction. Performs tasks in the field of land reclamation. On its basis, a special version has been created, capable of working in swamps and peat bogs.

The designers tried to maximize the operator's working conditions by equipping the cab with an air cooler and heating system for comfortable work in cold weather. We also worked on reducing the noise in the cab, sealing it and reducing vibration processes while driving. A sprung adjustable seat was made for the tractor driver. The DT 75 tractor video, which is posted on the Internet, is equipped with a front glass wiper to improve visibility and the ability to work in rainy weather. The washer was put on windshield.

Problems, causes and remedies for possible malfunctions

The tracked tractor DT 75 reviews, which are mostly positive, like any other technique can hurt. The table shows the main problems that are most common in the process of its operation. Possible causes of problems and remedies are indicated. Of course, the table does not show all the possible reasons for the unstable operation of the diesel "assistant", but it is these malfunctions that occur most often.

Traditionally, pay attention to work power unit and the condition of the hydraulics of the DT 75 bulldozer tractor. Especially when working with attachments that increase the load on the main units of tracked vehicles.

Repair work to eliminate technical problems

Problem	Cause	Remedy
The power unit does not start	Potential cylinder problem. Little compression. Perhaps the piston rings have become unusable	In this situation, their replacement is required.
Incorrect engine operation. Interruptions in work	The nozzle needle may have ignited	We need a replacement. If there is no positive result, check for high pressure connection
Small compression in pressure cylinders	Possible cause there may be natural wear or ring stuck	In this case, drastic measures are required: replacement of worn-out piston rings
If the power unit is running and smoke from the exhaust pipe	Most likely there is a question of piston rings	Replace
If a strong metallic knocking is heard at the bottom of the crankcase	There is a possibility that the connecting rod or main bearings have melted	To restore the working situation, you need to replace the connecting rod or main bearings
If the pressure gauge shows data below the permissible mark or it is clear that there is no oil pressure at all	The reason may lie in the spring of the drain valve.	In this case, it must be replaced. The problem may be in the sensor or oil pressure gauge
When the clutch slips	Need to pay attention to the master drive	Check it out
Torque multiplier brake slip	The whole thing may be in the spring of the brake lever	Verification required
If there are no indicators of the pressure multiplier lubrication system of the torque multiplier or the pressure data is lower acceptable standards	You need to inspect the pressure gauge	Possibly simple device replacement is required
When working on a flat soil surface, the tractor is pulled to the side	Cause may be sun gear brake band lining	Check for suitability. Replace if necessary
If the tractor does not turn when the control lever is fully pulled back and the stop brake pedal is depressed	Natural wear of the stop brake band pads is possible	Inspection required, followed by replacement
Attachment does not lower	Most likely the pump of the hydraulic system is out of order	It is required to check and, if necessary, replace the oil seal or the special O-ring in the suction pipe. If it does not help, you need to change the pump
If oil escapes from the oil tank breather or foam flows	Cylinder Piston Seal Check Required	The oil seal of the drive pinion of the hydraulic pump could be out of order
The generator is not working correctly	Check alternator and starter	You may need to replace the spring and brush of the generator armature
The starter motor rotates but does not crank in the starting engine crankshaft	Flywheel problems	The flywheel ring or drive must be replaced
There are no indicators of charging current on the ammeter	Junk generator	Fan drive belt needs replacement
Knocking and vibration can be heard in the drive wheel teeth. Or teeth slip	Inspect the drive wheel	Replace track pins and drive wheel teeth if necessary

The engines mentioned earlier are installed on different variants of the tracked vehicle. They have one thing in common - this is reliability and availability when performing repair work. There are no problems with the supply of spare parts, therefore, the cost price maintenance and repairs are minimized financially. To carry out repairs in the field, special mobile repair teams are created that service the equipment.

Specifications

All technical characteristics of the DT 75 tractor are summarized in table 2.

Table 2 - DT 75 bulldozer specifications

A type	Tracked
Appointment	agriculture
Specificity	general purpose
Rated pulling force, (kgf)	3000
Structural weight of the tractor, (kg)	5750
Specific metal consumption	76.6
Number of forward gears without UKM	7
Number of forward gears with UKM	7
Number of gears back without UKM	1
Number of gears back from UKM,	1
Speed \u200b\u200brange (km / h) forward without UKM	5.15 — 10.85
Speed \u200b\u200brange (km / h) forward with UKM	4.12 — 8.68
Speed \u200b\u200brange (km / h) backward without UKM	4.41
Speed \u200b\u200brange (km / h) backwards with UKM	3.53
Track (mm)	1330
Base (mm)	1612
Clearance (mm)	326
Specific soil pressure (kgf / sq.cm)	0.44
Power unit brand	SMD-14
DT 75 engine	4-cylinder for 4 strokes. Vortex chamber with mixture formation system
Power at 1700 rpm (hp)	75
Torque (%)	not less than 15
Fuel consumption of the power unit (g / e. Hp. H.),	195
Cylinder diameter (mm)	120
Piston stroke (mm)	140
Working volume of cylinders (l)	6.33
Power unit weight (kg)	675
Fuel tank (liters)	245
Starting the power unit	PD-10M-2 with electric starter
Tractor weight (kg)	6440

If you suspect an unstable tracked vehicle or a malfunction, you should immediately contact a specialist to troubleshoot!

Question answer

findings

I would like to be objective and not sing laudatory odes to domestic technology. BUT the fact that the DT 75 bulldozer has been successfully working in many areas since 1984 speaks in its favor. The technical stuffing cannot be compared with the capabilities of foreign technology, but as experts note, the category that the DT 75 managed to drive (photo of the transportation of tractors on the left), claim that the tractor is not inferior to many foreign models in operation. The DT 75 tractor is cheaper than foreign competitors, the tractor is unpretentious in repair, and replacement of parts is cheaper than imported equipment.

Even minor repairs can be done in the field. But the technique needs care. Therefore, preventive maintenance and especially the preparation of equipment for spring field work should be carried out with special attention. Great importance must be given to attachments, to analyze the reasons for the failure of a particular unit or unit. Monitor the hydraulic system and prevent equipment downtime during the hot season of sowing and cultivation of the land.

Video

In the video, the DT 75 is a bulldozer that has recently been released from the assembly line and is undergoing its first operational check.

The DT 75 tractor belongs to the 3rd traction class. It was designed for use in rural areas.

Over time, the DT-75 tracked tractor was modernized in accordance with new technologies, and began to be used for construction, industrial and land reclamation purposes.

The production of this series of tracked tractors began in 1969. To date, more than 3 million copies of DT 75 different models have been produced.

In this indicator, the DT 75 is the record holder, it is the most mass-produced tractor, which is constantly in demand on the market.

DT 75 is a basic model, on its basis a line of other tractors was developed, capable of working with a wide range of attachments and trailers for agricultural, construction and earthmoving directions.

The most popular among them: DT-75N, DT-75K, DT-75M, DT-75D and DT-75RM.

Specifications

Their technical characteristics are shown in the table:

Model	DT-75	DT-75N	DT-75D	DT-75RM
Traction class	3	3	3	3
Fuel consumption, g / kWh. (g / hp h.)	251,3 (185)	231 (170)	231 (170)	231 (170)
Power, kW (hp)	58,8 (80)	70 (95)	70 (95)	73,5 (100)
Speed \u200b\u200brange, km / h	0,34 - 11,5	0,34 - 11,5	0,33 - 11,1	0,35 - 11,84
Number of transfers, forward / backward	7/1	7/1	7/1	7/1
Track, mm	1330	1330	1330	1330
Ground clearance, mm	376	380	380	380
Dimensions, mm length x width x height	4530 x 1890 x 2650	4530 x 1850 x 2720	4530 x 1850 x 2720	4530 x 1850 x 2710
Weight, kg	6440	6810	6950	6800

Design features

Weight and dimensions

A distinctive feature of the DT-75 tracked tractors are large dimensions of 4530 × 1850 × 2650 mm and a weight of about 6.5 tons. Together with the track drive, this makes it easy to use the machine as a bulldozer, even on the most viscous soil.

Engine

On base model The postman tractor is equipped with a four-cylinder water-cooled SMD-14 diesel engine.

The engine power is 80 horsepower, the average diesel consumption is 250 g per hp / h.

The tank is designed for 315 liters, this allows you to work autonomously on the machine for a long period of time.

The owners say that the advantages of these engines are reliability, economy, simplicity of design and maintainability. Parts for this motor can be found in most automotive markets.

Transmission

The tractor is equipped with an 8-level gearbox, which allows you to choose the optimal speed for a specific type of work.

Due to this, the maximum smoothness and uniformity of the DT-75 is achieved.

Chassis and transmission

Traction-coupling performance of the tractor is significantly increased with the help of a double-disc clutch, which is constantly engaged, and a torque amplifier that increases traction characteristics by about 20-30%.

Wherein, main gear, gearbox and turning clutches are located in one unit. Additional equipment with creeper is possible.

On the forums there are reviews from the owners about the successful use of the DT-75M tracked tractor on tires.

The modification consists in the installation of bridges and semi-axles from the 130th ZIL.

At the same time, there is a significant saving of fuel and lubricants, as well as an extension of the engine's service life. It becomes possible to carry out the transportation of goods on general roads.

Cab and controls

The DT-75 tractor cab is completely sealed and allows 2 people to be accommodated in it at once. It has increased heat and sound insulation.

The technical characteristics of the cab fully comply with the current standards.

The seat height can be adjusted to suit the height of each operator. The ventilation system has filters for cleaning and heating the incoming air stream.

The owner of the DT 75K tractor is provided with a 360 ° view.

All control levers are located in the cab, which allows you to adjust the travel of the machine directly during operation.

Hydraulic system

The popularity of the tractor is achieved thanks to a wide range of different attachments that can be used in conjunction with the hydraulic system. It is controlled directly from the cab of the DT-75 tractor through a hydraulic valve.

Functionality

This machine is mainly intended for use in difficult conditionswhere a conventional tractor is unable to carry out work.

In the construction industry, this machine can be used as a swamp bulldozer in site preparation for further construction and trenching.

Thanks to the wide and high blade-shovel, you can work a large area of \u200b\u200bland in one go.

Engine power 80 hp enough for working in high humidity and swampy areas.

The shovel blade is also used to remove snow from road surfaces in winter.

Snowplow SSHR - based on the DT-75 tractor

In rural areas, the DT-75M tractor is mainly used for plowing. This model manifests itself in the best way when working with heavy virgin lands with a large amount of stones and hard rocks, since the tracked module, together with a large mass, allows you to use even a five-contour plow for plowing.

DT-75 is successfully used as an excavator. He is able to deepen reservoirs or pull out the foundation. The highest lifting capacity of the bucket can reach half a ton, while the unloading of soil can take place directly into the trailer of the truck for further transportation from the work site.

The Dt-75 tractor is often used as a skidder, because, thanks to the tracks and its large mass, it easily moves over the forest cover, and the hydraulic system allows the skidding attachment to be activated without problems.

The TDT-75 tractor was specially developed for these purposes. It has wider tracks.

TDT-75 is capable of transporting felled trees over long distances thanks to a special mount behind the cab.

Price

At the moment, the price for a new DT-75 tracked tractor depends on the configuration and ranges from 21 to 24 thousand dollars.

At the same time, foreign analogues will cost many times more.

Many farmers do not have such money, and they are more interested in what is the cost of a used model.

On the market, you can find copies worth from 3 to 4.5 thousand dollars, depending on the condition and mileage.

Features of operation

Service

To increase the service life of the tractor, it should be run-in so that all the parts rub in, it takes 8 hours.

Do not overload the engine during this time. Upon completion of this procedure, you must replace motor oil.

If the tractor is put into storage, then the following steps should be taken: clean the unit, put it in a dry place, drain the oil and gasoline (they will still get moisture and become unusable during this time), disconnect the spark plug wires (so as not to oxidize) and lubricate the transmission.

Planned technical inspection includes periodic oil changes. Before draining the engine oil, it is necessary to warm up the engine so that it becomes more fluid and easier to leave the system.

Then the pallet is placed under the crankcase and the mining is drained. Be careful not to get hot oil on your skin.

While it is draining, you can clean the centrifugal oil cleaners and filters. After that, fresh engine oil M-10G2k or M-10dm is poured into the DT-75K tractor.

It is also necessary to monitor the oil pressure in the hydraulic system. If it does not exceed 1 kgf / cm3, then it is necessary to top up lubricant or clean the filters, if the pressure is over 2.5 kgf / cm2, then the oil is drained and the filters are washed.

The operating instructions contain detailed description with a photo of various maintenance work.

Major faults and repairs

Every owner of DT-75M tracked tractors should know how to repair the main malfunctions of these machines.

The engine will not start:	Lack of oil or diesel; Clogged or incorrectly tuned fuel system; Problems with the ignition system; Compression in the cylinder due to wear on the piston rings. If the engine runs intermittently: Spark plug problems; Low-quality fuel; The needle is stuck on the nozzle.
The brakes do not work:	Free pedal travel has increased (adjust its position); The brake disc or pad is worn out (replace the corresponding parts).
If the gearbox overheats:	Small gear or bearing clearance (adjust); Lack of oil or its poor quality (add oil to the required level that is suitable for this model);
If the hydraulic system does not raise the attachment:	There is not enough oil in the hydraulics (it is necessary to bring it to the required level); The hydraulic pump is off (you should turn it on); The safety valve is stuck (you need to disassemble and clean it).

The most vulnerable point of the DT-75 tractor are the tracks. And many owners have experienced tearing or tearing.

Video review of work

This is how plowing with the DT-75 tractor takes place:

The high cross-country ability of the DT-75K tractor with a mass of 6.5 tons in marshland conditions is demonstrated in the video review: