Tractor T-40: alternator belt size, technical characteristics, weight, owner reviews, modifications

The T-40 AM tractor was produced by the LTZ tractor plant (Lipetsk Tractor Plant) from the 60s to the 90s. The model was used for plowing land, hay harvesting, and also for transport work. LTZ T-40 AM tractors were highly valued abroad. They were famous for their durability, high build quality, perfect design and ease of maintenance. T-40 AM tractors were produced for export under the name T-40 A SUPER.

History of appearance

The T-40 tractor is the brainchild of the Lipetsk Tractor Plant.
It was released in the 50s of the 20th century. The model's production period was 1961-1995. Subsequently, the model gained such popularity that the total number of T-40 tractor models produced exceeded 1.2 million copies. In Soviet times, the plant in Lipetsk specialized in tracked tractors, but soon, around the end of the 50s, the plant switched to the production and sale of tractor models with wheels. Currently, a working model of the Soviet T-40 can be bought in almost any region of Russia, Ukraine and even in Belarus and neighboring countries. The Lipetsk Tractor enterprise still produces components for the T-40 today.

Judging by the reviews, a similar T-40 model in good condition will cost about 122 thousand hryvnia, the price may fluctuate up or down depending on the condition of the car. In Russian rubles, the T-40 costs from 80 to 300 thousand rubles. A big role in the price is played by the equipment, the condition of the engine, and the availability of points of sale of spare parts for the tractor in your region.

Purpose of the T-40

According to the manufacturer, the main purpose of the T-40 tractor was transport work, work in the field, and on personal plots. The device was recommended for use on light soils, for example, for work in garden areas and greenhouses.

Additionally, the T-40 was used for functions such as plowing, haymaking, collecting and storing hay, and delivering hay for storage; harvesting, clearing snow from fields and cultivating. When installing attachments, the tractor can be used as a cargo carrier, tractor, or as auxiliary equipment for repair or construction work.

The main advantages of the T-40 compared to analogues in the price or functional range are:

• increased cross-country ability;
• possibility of working on slopes;
• moderate diesel fuel consumption;
• adjustable tillage track width during plowing;
• wear resistance;
• the ability to choose a modification with all-wheel drive or rear-wheel drive;
• work with a large number of attachments (reviews about the machine are mostly positive).

The disadvantages of the T-40 include the following:

• in extreme heat the engine may overheat;
• fuel consumption is higher in winter than in summer;
• lack of conveyor production of new models (the Lipetsk plant produces only spare parts for the T-40).

Generator drive belt T-40 diagram and maintenance

In one of the materials we looked at the circuit and principle of operation of the generator, but this mechanism will be useless without a regular belt. In this article you will find a complete mounting diagram and tips for maintaining the belt drive on the T-40 tractor.

T-40 generator belt drive diagram and its operating principle

The belt is needed to convert the rotation of the D-144 engine to the generator into electricity. Below we provide a diagram of the complete system, and below it we will give a brief explanation of it.

Maintenance and proper operation of the generator and belt

The main rule in servicing the T-40 generator is not the frequency of checking contact connections, but their reliability of fastening. This means that after every 120 hours of operation you need to check the degree of reliability of the belt fastening, and if necessary, you need to tighten them by unscrewing the nuts and moving the generator towards you.

Also, after every 960 hours, check:

1. Correct movement of the brushes; if the slightest jam is detected, it is necessary to eliminate them;

2. If the brushes are worn out and their thickness is less than 12 mm, then they need to be replaced. Using sandpaper, we grind the new brushes into the cavity, and use a dynamometer to measure the pressure of the brush springs. We have given the nominal values ​​in the table of the T-40 tractor generator.

3. If there is gout on the collector. Then you need to remove it with a rag. Pre-soaked in gasoline. If the gout remains, then we carefully protect it with sandpaper.

4. If a large fire occurs, remove the generator and send it in for repair;

5. Bearings must be lubricated every 240 hours.

For the first 1500 hours, the generator does not require the addition of lubricants or additional maintenance.

Model range and modifications of T-40

The predecessors of the T-40 tractor were the T-25, T-30, T-35 models, but the all-wheel drive version T-40A, released by the manufacturer in 1965, became a favorite among buyers. Its popularity reached the point that, based on the main T-40 machine, the plant’s engineers developed a special KO-705 harvesting machine. Some time later, the Lipetsk plant acquired other agricultural products, in particular, loaders, bulldozers and other specialized equipment.

In addition to the modification of the T-40A, the flagship went through a lot of improvements and modifications. Conventionally, all of them can be divided into two groups - depending on the type of engine - D37 or D144. Externally, a model with a D37 engine can be recognized by its rounded hood, while modifications with a D144 engine have a rectangular hood.

Modifications of T40 with D37 engine

• T40A - all-wheel drive;
• T40AN - all-wheel drive with reduced ground clearance, lower height (for working on slopes);
• T50A - industrial model, can work with a loader (one bucket).

Modifications of T40 with D144 engine

• T40M – rear-wheel drive;
• T40AM – all-wheel drive;
• T40ANM – all-wheel drive, with reduced ground clearance;
• T40AP – all-wheel drive, suitable for aggregating municipal equipment.

Attachments

• mounted plow;
• front loader;
• rear dozer blade;
• rotary mower;
• tillage mill;
• snow brush;
• snow blower;
• seeders of various types;
• potato diggers and potato planters.

The T-40 tractor can work with attachments from manufacturers Neva, Salyut, as well as with other attachments from Soviet manufacturers of large-sized agricultural machinery. When connecting large attachments, such as seeders, cultivators, potato planters, it is allowed to use additional weighting, which is attached to the bracket. This bracket is mounted on the front beam.

Features of operation

A unique feature of the T-40, which distinguishes it from many analogues in terms of weight and technical characteristics, is its durability. Most of the models produced in the 70-80s of the 20th century are still in working order and are on the move, operated by farmers on private and state farms. Since the T-40 manufacturer continues to produce spare parts for the machine, maintaining the tractor in working condition is not difficult.

In addition to obvious advantages, the T-40 also has some disadvantages, namely: the thermal regime of the engine is unstable, which manifests itself in winter underheating and summer overheating when working in the scorching sun, for example. In winter, the engine can be difficult to start, and the cabin does not warm up enough due to the air-cooled engine.

Despite its shortcomings, parameters such as strength and speed make it possible to call the T-40 one of the most popular tractor models of the 20th century. The minimum speed of the tractor is 2 km/h, the maximum is 27 km/h. It is possible to adjust the track; the rear pair of wheels can be replaced with others, narrower than the factory ones.

Advantages and disadvantages

Relatively inexpensive, simple in design and economical in everyday use, “magpies” have earned the respect of users due to their versatility, unpretentiousness to fuel and lubricants, and long service life.

Thanks to the wide selection and affordable cost of repair, restoration and consumables, tractors produced in the 80s and 90s are still maintained in good technical condition.

• The vehicle’s maneuverability on weak and waterlogged soil foundations is also highly valued.
• The combination of small dimensions and excellent maneuverability, which determines the possibility of using the tractor in the interior of greenhouses and livestock complexes.
• Availability of self-service and repair.
• Availability of reverse gear for all gearbox stages.

The main disadvantages include cold start problems, low efficiency of the air cooling system, lack of complete thermal and sound insulation of the cabin, high driver fatigue due to the rigid suspension of the rear axle and high vibration levels.

The design of the “magpie” does not provide for control of the brake mechanisms of towed trailers, which in turn initiates accelerated wear of the brakes of the tractor itself. Strict restrictions on engine temperature conditions and operating time at low and idle speeds also create inconvenience.

Description and technical characteristics of the easy-to-maintain T-40 tractor

The T-40 AM tractor was produced by the LTZ tractor plant (Lipetsk Tractor Plant) from the 60s to the 90s. The model was used for plowing land, hay harvesting, and also for transport work. LTZ T-40 AM tractors were highly valued abroad. They were famous for their durability, high build quality, perfect design and ease of maintenance. T-40 AM tractors were produced for export under the name T-40 A SUPER.

Tractor transmission and chassis

The installed transmission includes:

• Clutch;
• Manual variable gearbox;
• Speed ​​conversion (reduction) device;
• Lateral power take-off shaft;
• Rear power take-off shaft.

Units included in the chassis elements:

• A set of components connecting the wheels of the front axle;
• A set of components connecting the wheels of the rear axle;
• A frame consisting of two halves of frames;
• Wheels.

Power take-off shaft tractor T-40:

Due to its simplicity and reliability, the chassis is easy to maintain and repair. The disadvantage of the T-40M tractor is its handling on wet roads. This led to the owners of the unit tuning the car by installing a front axle with a drive on it. At the same time, the plant produced a tractor model with all-wheel drive, marked t 40 am.

The suspension scheme of the wheel part is different. The front axle is with springs, the rear axle is rigid. The tractor's cross-country ability is increased, and an unusual tread pattern is used.

Description of the T-40 tractor

The following will be a description and characteristics of the T-40 tractor. The car has a rear axle layout with an engine and gearbox. The rear wheels are larger in diameter than the front guides. For good cross-country ability, the treads have herringbone lugs. The track is adjustable, so the car can overcome the ground clearance of all wheels. The rear wheels are replaceable and can be supplied with a smaller width. To increase the track, the rear wheels are turned inside out. This is achieved by the asymmetrical shape of the disks.

Let's look at the design of the tractor. The Lipetsk plant installed a four-cylinder, air-cooled engine. They had different powers. The unit with the D-37 engine had a power of 37 hp, and with the D-144 - 50 hp. Diesel is used as fuel. The car is started by an electric starter or a PD8 starting engine powered by gasoline.

The gearbox (T-40 gearbox) uses a mechanical and reverse power transmission to use the entire speed range. Moreover, unlike other types of wheeled tractors, reverse gear can also be used with mounted implements.

In case of low-speed work, a hydraulic creeper is provided. The tractor's capabilities are enhanced by two multi-mode power take-off shafts, controlled independently of each other.

A distinctive feature is the interesting arrangement of the bevel gearbox and gearbox shafts, which are located alternately directly behind the clutch.

The advantages of the equipment include the compatibility of mounted and trailed equipment of various classes of machines, such as: T-25 and heavy Belarus models. The disadvantages include insufficient heating of the car in winter and intense engine operation in summer. Since the tractor is cooled by air, the tractor driver’s cabin does not warm up during the cold season. For the same reason, it is difficult to start a car in winter.

The fuel consumption of the T-40 tractor is not always the same. Since the engine power of the models is different, the fuel consumption will be different accordingly. The lowest figure is 7.28 kg/h. It may increase depending on the complexity of the work performed and the quality of the soil.

The design and adjustment of the clutch of the T 40 tractor affect the smooth shifting of the gearbox. Let's consider the principle of operation of the mechanism.

The T-40 clutch disconnects the connection between the engine and transmission. Such a short-term disconnection is necessary to quickly change gears on the gearbox and start moving the machine. Disengagement of the clutch discs is achieved by the release bearing. This is an important and most vulnerable part that is part of the gearbox and ensures the movement of the car. If this part wears out or breaks, it is immediately replaced with a new one.

The mechanism consists of a clutch, which is a disk with closed control. During operation, the disc linings wear out, which leads to a decrease in the gap between the bearing and the ends of the levers. Fracture may occur as a result of friction. The clutch can be adjusted using rods or bolts. In both cases the gap should remain 4 mm.

Description and design of the tractor

The T 40 AM tractor has compact dimensions, making it easy to handle small areas and can be maneuvered in a garden or greenhouse. It plows light soils and transports loads. You can install a haystack thrower on it, which simplifies the work of peasants during haymaking. In winter, this model is used to clear roads of snow. The tractor plant was tasked with creating a universal medium-power machine to perform a number of functions, as well as plow the land.

The design of the tractor is simple, but, nevertheless, it contains the following elements of electrical equipment:

• generator;
• electric starter;
• battery;
• pneumatic compressor;
• lighting;
• hydraulic system.

The T 40 tractor was very popular.
Despite the fact that the T 40 tractor went into production back in Soviet times, it is still popular today due to its endurance and versatility. The machine has a number of advantages, among which are:

• the tractor runs on any type of soil and under any conditions;
• at any speed it can easily maneuver;
• used for various types of work in the agricultural industry;
• durable and reliable to use;
• Spare parts for repairs can even be bought on the market.

Important Loaders for any type of work from the Japanese company TSM

But despite many advantages, the T 40 also has disadvantages:

• air cooling does not cope with its functions in the summer, on days when the temperature rises above 27 degrees, which is why the engine quickly heats up;
• the engine is almost impossible to start on frosty days;
• There is no air conditioning or heating in the cabin, which creates discomfort for the driver.

Despite these shortcomings, the T 40 tractor does not lose its popularity in all countries of the post-Soviet space. It is even purchased by individual landowners for their own use due to its small size and high endurance.

Technical characteristics of T-40

The T-40 tractor has the following technical characteristics:

• Refers to the wheel type.
• The towing class is 0.9 tons. The weight is 2.595 kg.
• The driver's cabin is located at the rear, and the car engine is at the front.
• Dimensions and size: 3660x1620x2100 mm.
• With the engine model on the T 40 D-37 - 37 hp, which corresponds to 27.2 kW.
• With the D-144 engine model - 50 hp, which corresponds to 36.8 kW.

List of models with D-37 engine:

• T-40 is the main model with rear-wheel drive.
• T-40 A is a tractor with all-wheel drive.
• T-40 AN is a model designed for work on slopes. Height and ground clearance have been reduced. Full drive.
• T-50 A is a model for working with a single-bucket loader.

List of models with D-144 engine:

• The T-40M tractor is a rear-wheel drive model.
• T-40AM - all-wheel drive.
• T-40ANM is a model with a reduced height, designed for work on slopes. Full drive.
• T-40AP - designed for public works. Full drive.

Let's consider the repair of the T-40 front axle. The front axle increases tractor traction on difficult soil. The T-40 tractor axle consists of: suspension, transfer case, differential, main and final gears. Repair of the FDA on the T-40 tractor consists of replacing the failed part with a new one. Spare parts for the tractor are not difficult to find, so it is better not to repair it, but to buy a new part, especially since it is inexpensive. If you don’t know how to roll out a tractor, then take the advice of experienced craftsmen who post detailed videos on this topic.

Power, speed, versatility

The basic model T-40 was a universal wheeled tractor of the 0.9 t class for work at high speeds. The tractor is equipped with a four-cylinder diesel engine D-37M with air cooling and starting from an electric starter. Fuel combustion occurs in a chamber located in the bottom of the piston, which ensures high efficiency of engine operation.

The eight-speed manual gearbox has reverse, which allows the tractor to move forward and backward in all gears. For safe operation in the unit with a trailer, a manual lever is installed on the right side of the cab to operate the trailer brakes.

The tractor wheels are equipped with low-pressure pneumatic tires measuring 11-38″. When working in narrow rows, install tires measuring 8.25-40″ or 9-42″. Front wheel size is 6.5-16″. To reduce the towing of the drive wheels when working on wet and light soils, as well as when working with mounted implements that require a large traction force (plowing, deep loosening, etc.), a mechanical additional loader of the drive wheels is used. The track of the rear and front wheels, as well as the ground clearance, are adjustable, which allows the tractor to be used in all standard row spacings of low-stem and high-stem crops.

The steering mechanism is equipped with a hydraulic booster, which facilitates control and ensures the straightness of the tractor and good maneuverability. The longitudinal bars of the semi-frame and the front beam have a standard system of holes for attaching mowers, reapers and other agricultural machines. A hydraulic tow hook allows the tractor driver to attach single-axle transport trolleys to the tractor without leaving the cab.

The T-40 is aggregated with the same agricultural machines with which the DT-24 and T-28 tractors work, and with the majority of agricultural machines designed to work with Belarus-type tractors.

Modernization of T-40

Many owners of this equipment make their own adjustments and improvements. Let's see how the modernization is carried out, what they change in the T-40 tractor:

• pedals - since the old ones were inconvenient to work with, the leg was constantly tired;
• brakes and handbrake;
• levers;
• steering wheel;
• key box;
• trim - alteration of the interior of the cabin;
• the seat has been modernized, which can be taken from a “Muscovite”; it is quite soft and comfortable;
• step;
• tires.

Many models released back in the 70-80s are still in use by many people and are particularly durable. The production of spare parts continues to this day to keep the machines in working condition.

Tractors, like any other vehicle, are subject to tax. The tractor tax is calculated using the following formula: (number of hp) x (tax rate in the region). Owners are exempt from taxation only if the tractor is registered to an agricultural producer or is used in the production of agricultural products.

Device, diagrams, repair

Generator of the T-40 tractor. Alternator diagram and belt size

The generator of the T-40 tractor is used to power all consumers with electric current, as well as to recharge batteries. The generator is designed as a non-contact three-phase same-pole electric machine, equipped with one-way electromagnetic excitation, a Ya112B voltage regulator and a built-in BPV-23-50 rectifier unit.

On the back cover of the generator there are terminals “+” and “D” for connecting electrical consumers and devices, as well as a switch for seasonal voltage adjustment. The generator operates in parallel with the battery and serves to recharge it.

T-40 tractor generator: 1 - seasonal adjustment screw (winter-summer switch); 2 - voltage regulator; 3 — back cover; 4 - stator; 5 — front cover; 6 — fan impeller; 7 - pulley.

Generator specifications

load equal to 13 A

T-40 tractor generator diagram: 1 - lamp; 2 — back cover; 3 - stator; 4 — front cover; 5 - rectifier block; 6 — fan impeller; 7 - pulley.

Exploitation

To prevent failure of the generator, equipped with a built-in integral voltage regulator, when performing welding work on the tractor, turn off the “ground” switch in advance.

To increase the service life of the generator, it is recommended to adhere to the following rules:

1. It is prohibited to connect the battery terminals with reverse polarity - this will lead to failure of the voltage regulator and generator;

2. Do not under any circumstances start the engine from an external source with a voltage exceeding 13 V;

3. Do not wash the generator with gasoline, diesel fuel or solutions containing degreasers, or dry it at temperatures exceeding 85 ºC;

4. It is prohibited to check the generator for serviceability by shorting the terminals to ground and the terminals of the voltage regulator to each other;

5. It is prohibited to check the presence of electric current by shorting to ground when the battery is removed.

The serviceability of the T-40 tractor generator can be checked using the ground switch indicator lamp located on the left of the instrument panel. The warning light comes on after turning on the ground before starting the engine. If the generator is working properly, the warning light will go out after the engine starts.

T-40 tractor generator belt drive: 1 — generator bracket; 2 — tension bar; 3, 6, 10 — nuts; 4 — generator pulley; 5 - V-belt; 7, 9 — bolts; 8 — locking plate; 11 - hairpin.

The T-40 generator belt is used to convert rotation from the engine to the generator into electrical energy. The alternator belt size is 8.5x8-1280.

Generator maintenance and repair

Generator maintenance involves infrequently checking the contact connections and the reliability of the generator mounting.

After every 120 hours of operation, check the tension of the fan belt; if necessary, tighten the belt by unscrewing the nut and moving the generator towards you. The generator belt tension is considered normal when the belt deflection between the crankshaft and the fan pulley is 15-22 mm if you press it with a force of 4 kgf.

Applicability of BELTS

ATTENTION: on this page we tried to collect as much information as possible about the applicability of various belts on equipment. Due to the wide range of belts, we recommend contacting the managers of our company for quick selection and consultation by calling 977-02-02.

Applicability of Finwhale drive belts to domestic car models:

Applicability of V-belts on garden equipment:

This table shows examples of the applicability of poly-V-ribbed drive belts of section RK:

V-belts for fans

Fan V-belts with molded teeth without side facings TU 2564-431-00149311-2006

Poly V-belts

BELTS made by HanseGermany:

Accepted notation scheme:

H – the first letter of the company name HANSE R – structure of HANSE numbers in the group of drive belts – V-belts and poly-V-belts. 6RK-698 – poly-wedge with 6 ribs, effective length 698 mm. AVX-10-875 – wedge, width 10 mm, effective length 875 mm. Z – structure of HANSE numbers in the group drive belts – timing belts.