Ltz 155 instruction manual

History of the LTZ-155 tractor

The history of the creation of the Lipetsk Tractor Plant began in the pre-war years, with the construction of the Stankostroy machine-building enterprise, the construction of which took place in 1932–1936. Not far from the production site, a whole residential area with developed infrastructure arose. In the early 40s, Stankostroy was already a large city-forming enterprise.

In 1943, at the height of the Great Patriotic War, the country experienced an acute shortage of tracked traction both at the front and in agriculture. Then it was decided to establish the Lipetsk Tractor Plant on the production premises of the Stankostroy enterprise.

In parallel with the construction and restoration work, the LTZ team was working on the first tracked tractor “Kirovets-35”, which was ready for work on June 1, 1944. This was the first car of the LTZ brand, after which more than one and a half million of its fellows, of various models and modifications, rolled off the assembly line.

During its existence, the plant mastered the production of row-crop tracked tractors KD and KDP-35, T-38M. The production of universal, wheeled LTZ-55, the famous T-40, LTZ-60 has been mastered.

The crowning achievement of the Lipetsk Tractor Plant was the LTZ-155, the chief designer of which was Alexander Durmanov. It was developed and ready for production in 1988, but went into production only in 1995. This tractor of the 2nd traction class, integrated circuit, was in many ways ahead of its time, proved its unique versatility and excellent performance characteristics.

But unfortunately, like many outstanding developments in our country, it remained underestimated. Although the car was made of hardware and went into production, the scale of production was small and died out during the devastation of the 90s. The final point in the sad history of this unique tractor was set in 2004, when the plant was declared bankrupt and the entire LTZ model range was discontinued.

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Specifications

The thoughtful layout of the LTZ-155 design had a positive effect on its compactness. With a wheelbase of 2.7 m, the tractor dimensions of 4.67 x 2.36 x 3.07 meters correspond to the parameters of similar machines in this class.

The turning radius is less than 4.5 meters. Cross-country ability is ensured by wide-profile tires of the same diameter wheels and a ground clearance of 50 cm. Depending on the type of agricultural work, the track of the chassis can be adjusted in the range from 1400 to 2060 mm.

The load capacity of the front and rear linkages is 2500 and 5000 kg, respectively; the weight of the tractor itself, 5600 kg, is distributed between the front and rear axles in a ratio of 60/40%. The specific load on the soil, which is within 20 MPa, increases the maneuverability of the tractor unit on waterlogged soils and problem areas of dirt roads.

Model/mode	LTZ-155/standard	LTZ-155/economical
Engine	D442-47	D442-47
Power, kW (hp)	110 (150)	88 (120)
Rated crankshaft rotation speed, rpm	1850	1850
Maximum torque, Nm	687	716
Fuel consumption, g/kWh	220-222	215
Fuel tank capacity, l	230
Dimensions, mm length x width x height	4670 x 2355 x 3070
Weight, kg	5600

Technical characteristics of the LTZ-155 tractor

Dimensions and weight of the tractor:

Dimensions length/width/height – 4670/2355/3070 mm;
Base – 2700 mm;
Track on the main wheels – 1400; 1515; 1800; 2060 mm;
Track on narrow dual wheels – 1400+ (2x675); 1800+(2x450);
Agrotechnical clearance, on tires 16.9R30/9.5-42 – 590/650 mm;
Turning radius – 4.5 m;
Weight – 5.6 tons.

Tractor engine LTZ-155

The LTZ-155 is equipped with a power unit from the Yaroslavl Motor Plant D442–47. This is a four-cylinder, in-line diesel engine with water cooling and gas turbine supercharging.

A distinctive feature of this diesel engine is the presence of two power levels, which can be switched between during operation. This feature allows you to turn on a more economical mode when performing work where high power is not required.

A cylinder head cast from cast iron and a full-support crankshaft with hardened journals significantly increase the service life and prolong the life of the diesel engine.

Operating parameters of diesel engine D442–47:

Power at levels I/II kW/hp. – 110 (150)/88(120);
Rated speed – 1850 rpm;
Cylinder diameter/piston stroke – 130/140 mm;
Cylinder volume – 7.43 l;
Fuel consumption at power levels I/II – 220/215 g/kWh;
Fuel tank – 230 l.

Gearbox of the LTZ-155 tractor

The tractor is equipped with a manual gearbox. Gearbox gears are in constant mesh. The box operates in six ranges, four of which are for forward operation, two backward. Each range has four gears, and you can change gears within the range under load.

In total, the unit provides 16 forward speeds and 8 reverse speeds. The speed ranges from 2.09 to 35.01 when moving forward, and from 2.58 to 11.95 in reverse. It is possible to use a creeper; its use significantly expands the functionality of the machine.

Chassis and transmission of the LTZ-155 tractor

The clutch on the tractor is single disc, dry, and constantly closed. All elements are made of high quality materials, which significantly extends their service life.

LTZ-155 is an all-wheel drive vehicle with wide wheels of the same diameter. It can be equipped with twin, narrow wheels for inter-row processing; in this case, the row is passed between the pair.

Rear axle with balanced swing relative to the body by 11 degrees. This allows you to copy the terrain separately with the rear and front implements. The weight of the tractor is distributed as follows: 60% on the front axle, 40% on the rear axle. This weight distribution, when working with a traction load, loads all four wheels evenly.

LTZ-155 tractor technical characteristics

Details

LTZ-155 tractor with a power of 150 hp.

Tractor LTZ-155 technical specifications table

engine's type	YaMZ-23 6D-2 4-stroke 6-cylinder
Cooling system	liquid
Rotational speed engine crankshaft, rpm	1850
Operating power, kW (hp)	110 (150)
Overall dimensions, mm	5100/2355/3100
Track width, mm	1500
Agrotechnical clearance	590
Operating weight, kg	5981
Cabin	single, frame type, thermal, noise and vibration insulated with ventilation and heating system, panoramic, with adjustable seat
Longitudinal base, mm	2765
Number of gears	16/8
Speed range, km/h	2,089-35,011; 2,582 –11,951
Rear axle	leading
Steering: front wheels
- front wheels	hydrostatic
- rear wheels	hydromechanical

Transmission
Clutch	dry, single disc, permanently closed
Transmission	mechanical, six-speed
Gear shift	within ranges without interruption of power flow
Differentials: interaxle and interwheel rear axle	gear, with positive locking
Front axle	ratchet, self-locking
Final drives	single stage, planetary
Number of forward/reverse gears	16/8
Travel speeds, km/h:	without creeper	with creeper
- forward	2,09-35,01	0,07-1,92
- back	2,58-11,95	0,09-2,37

Cabin of tractor LTZ-155

The tractor is equipped with a frame single-seat cabin, which is attached to the body with four emission insulators. The cabin is located in the center of the base, and behind it on a specially equipped area, working equipment can be located.

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The inside is lined with soundproofing materials and sealed. Equipped with forced ventilation and heating systems, which allows you to operate the tractor all year round. As an option, it is possible to install an air conditioner.

The main driver's seat is adjustable in the vertical and horizontal planes, and is also adjustable in weight. In addition to the driver's seat, there is also a folding passenger seat.

The control panel is equipped with an automatic control system for the operation of tractor systems and units. The controls are located as conveniently as possible for the operator, and can be converted to operate in reverse mode.

LTZ-155 tractor technical characteristics

Details

LTZ-155 tractor with a power of 150 hp.

Tractor LTZ-155 technical specifications table

engine's type	YaMZ-23 6D-2 4-stroke 6-cylinder
Cooling system	liquid
Rotational speed engine crankshaft, rpm	1850
Operating power, kW (hp)	110 (150)
Overall dimensions, mm	5100/2355/3100
Track width, mm	1500
Agrotechnical clearance	590
Operating weight, kg	5981
Cabin	single, frame type, thermal, noise and vibration insulated with ventilation and heating system, panoramic, with adjustable seat
Longitudinal base, mm	2765
Number of gears	16/8
Speed range, km/h	2,089-35,011; 2,582 –11,951
Rear axle	leading
Steering: front wheels
- front wheels	hydrostatic
- rear wheels	hydromechanical

Transmission
Clutch	dry, single disc, permanently closed
Transmission	mechanical, six-speed
Gear shift	within ranges without interruption of power flow
Differentials: interaxle and interwheel rear axle	gear, with positive locking
Front axle	ratchet, self-locking
Final drives	single stage, planetary
Number of forward/reverse gears	16/8
Travel speeds, km/h:	without creeper	with creeper
- forward	2,09-35,01	0,07-1,92
- back	2,58-11,95	0,09-2,37

Control of the LTZ-155 tractor

The main distinguishing feature of our hero is the unique tractor control scheme. Here the LTZ designers, led by Alexander Durmanov, outdid themselves by creating a tractor on which all four wheels were steerable. This allowed the vehicle to perform maneuvers previously inaccessible to vehicles of this class.

For LTZ-155, four rotation options were provided:

Turn only with the wheels of the front axle;
The wheels turn only on the rear axle;
The rear and front wheels are turned in the same direction (this maneuver is nicknamed the “crab”);
The front and rear wheels are turned in opposite directions (in this case, the rear wheels copied the track of the front ones).

The steering of the front axle wheels is hydrostatic, the rear wheels are hydromechanical with servo action, the signal to the servo device is supplied from the front axle.

The tractor control post is made quickly reversible. This allowed the tractor to successfully perform tasks both in forward and reverse.

Only after the release of the LTZ-155 series did tractors with a similar control scheme begin to be developed in Europe. And in 2004, when the production of LTZ-155 had already been stopped, Uralvagonzavod launched into series a tractor with identical control RT-M-160.

Tractor LTZ-155 – Agrodelo

LTZ-155LTZ-155 is the first Russian universal row-crop tractor, created with maximum consideration of the requirements and modern state of agriculture. The LTZ-155 tractor is designed for cultivating and harvesting potatoes, sugar beets, sunflowers, vegetables, corn and other crops using existing and advanced technologies.

The minimum turning radius of the tractor is 4.5 m.

This ensures that the rear wheels follow the tracks of the front wheels. Various operating modes of the tractor allow you to turn the front wheels with a delay in turning the rear wheels, turn only the front or only the rear wheels, turn the front and rear wheels in one direction (“crab”). The modification of the LTZ-155U tractor differs from the basic LTZ-155 tractor in the absence of a mechanism for turning the rear wheels. Because of this, the minimum turning radius of the tractor increases to 5.6 m. The remaining characteristics of the LTZ-155 and LTZ-155U are identical.

The balanced swing of the rear axle relative to the frame at an angle of ±11° ensures separate copying of the soil relief by the front and rear implements.

When working with a traction load, the front and rear wheels are loaded evenly. In static conditions, the weight distribution is 60% on the front axle and 40% on the rear. Being at the junction of tractors of the 1.4 t and 3 t classes, the LTZ-155 are aggregated and quite effective with the majority of existing agricultural machines, the MTZ-82 and T-150K tractors.

LTZ-155 - technical characteristics

engine's type	YaMZ-23 6D-2 4-stroke 6-cylinder
Cooling system	liquid
Rotational speed engine crankshaft, rpm	1850
Operating power, kW (hp)	110 (150)
Overall dimensions, mm	5100/2355/3100
Track width, mm	1500
Agrotechnical clearance	590
Operating weight, kg	5981
Cabin	single, frame type, thermal, noise and vibration insulated with ventilation and heating system, panoramic, with adjustable seat
Longitudinal base, mm	2765
Number of gears	16/8
Speed range, km/h	2,089-35,011; 2,582 –11,951
Rear axle	leading
Steering: front wheels
- front wheels	hydrostatic
- rear wheels	hydromechanical

The tractor LTZ-155 has all drive and steered wheels of the same size. The engine is moved forward on the front axle, and the cab is centrally located. In this case, the static distribution of the tractor weight is 60% on the front axle and 40% on the rear axle. The space behind the cab, above the rear axle, is used to accommodate technological equipment. The tractor frame is semi-frame.

Original steering of all steered wheels. Synchronous drive of the front and rear wheels is carried out through an interaxle gear differential with electrically controlled locking and a self-locking differential of the front axle. The front wheels are braked simultaneously with the rear wheels. The control post in the cockpit is designed to be quickly reversible.

The variety of equipment supplied to order (front linkage, front, rear upper and side power take-off shafts, narrow dual wheels, creeper, towing devices) made it possible to expand the scope of application of the tractor.

Hydraulics and linkage system of the LTZ-155 tractor

The tractor is equipped with a separate-aggregate hydraulic system, which provides positional, power, height and mixed regulation of the arrangement of agricultural equipment on the rear linkage. The hitch is also equipped with a hydraulic booster for the coupling mass of the equipment.

To ensure the operation of remote hydraulic cylinders and other hydrostatic units, there are 4 pairs of independent hydraulic outputs. The front and rear linkage hydraulics, as well as the hydraulics of attached and trailed equipment, are controlled by the operator from the cab.

The tractor's hitch is both rear and front, three-point. Both hitches are completely similar in places and method of attaching equipment, they differ only in load capacity. For front linkage 2500 kg, for rear linkage 5000 kg.

Both attachments are equipped with a mechanical stop for fixing the attachments in the transport position, an automatic coupler and a remote control.

Tractor LTZ-155

Purpose: Wheeled, universal row-crop Traction class: 2 Country of manufacture: Russia
Designed for cultivating and harvesting sugar and fodder beets, vegetables, potatoes, high-stemmed row crops both on flat and profiled surfaces with row spacing of 45, 60, 70 and 90 cm using wide-cut single-operational and combined units, performing general-purpose work, sowing , harvesting grain and other crops, harvesting feed, including on floodplains, transporting agricultural goods, loading and unloading operations.

Distinctive features: a fundamentally new layout for a universal row-crop machine; all steering wheels are the same size; front and rear mounted hydraulic systems; the presence of a platform behind the cabin for the installation of large containers with technological material (fertilizers, pesticides, seed, etc.); developed power take-off system. All this allows, on the basis of the LTZ-155 tractor, to assemble combined units that perform several operations in one pass.

The tractor is equipped with a liquid-cooled four-stroke in-line diesel engine D-260T, equipped with an electric starting system. The tractor transmission is mechanical, stepped, with gear shifting on the go (under load without interrupting the power flow) by automatically locking the front cross-axle differential and automatically engaging the axles by locking the cross-axle differential. The engine is connected to the manual transmission by a permanently closed single-plate dry clutch.

The gearbox is mechanical with constant mesh gears, with load shifting of four gears within four forward ranges and two reverse ranges, with manual control.

Operation of the LTZ-155 tractor

The LTZ-155 tractors work effectively with the vast majority of agricultural equipment created for both MTZ-82 class machines and more powerful ones, such as the T-150K. Without any problems, it copes with a 4-furrow plow, pulls the hitch of a pair of KPS-4 cultivators, three S3–3.6 seeders when planting grain, an LDG-10 huller and other equipment.

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The tractor showed the best performance, in comparison with analogues, when cultivating various row crops using wide-cut machines.

Let's look at the advantages and disadvantages of these machines.

The undeniable advantages are:

Simultaneous placement of equipment on the front and rear hinges, as well as on a special platform behind the cab. Four PTO drives for simultaneous activation of the working parts of the installed equipment;
The control post is made quickly reversible;
Shifting gears within the range without interrupting power;
Best maneuverability in its class.

It would seem that such a unique machine could have some disadvantages, but there was a fly in the ointment. And the reason for this was largely the human factor.

The main years of tractor production were in the 90s. These were years of general decline and confusion, and this could not but affect the quality of the build. Moreover, by that time the plant was slowly dying.

As a result: most equipment arrived at farms with a lot of defects, manufacturing defects, and quickly broke down.

The shortage of spare parts can also be considered a big drawback. The machine has long been out of production, and the plant has not been operating for more than ten years.

I would like to note that when Uralvagonzavod gave the tractor a second life, in the form of the RT-M-160, serious work was carried out on the errors and many design flaws were corrected.

Tractor LTZ 155: technical characteristics, diagrams

The LTZ-155.4 U tractor is designed for cultivating row crops with row spacing of 45, 70 and 90 cm as part of wide-cut single-operational and combined units, continuous plowing and other general-purpose work; sowing grains and grasses; cultivated using intensive technologies for harvesting row crops and cereal crops, performing transport and loading and unloading operations.

By special order the following are installed:

wheels 9.5-42
towing device TSU-2/TSU-3
creeper
air conditioner
front linkage with cylinder and automatic coupler
sprayer frame with stands
front, rear upper, side power take-off shafts

Buying a used LTZ-155 tractor: features of choice

Considering the fact that the tractor is not widely used, there are not so many offers on the market. And what exists, for the most part, has a lot of experience. How to choose a used LTZ-155 and not go wrong?

When inspecting, pay special attention to the gearbox; there should be no extraneous noise during operation. Quite often the hydraulics are snotty, and this is already a reason for bargaining.

The engines in general on these tractors are not satisfactory, YaMZ after all. But it’s worth driving it, giving it a load and paying attention to the exhaust. Under heavy load, any diesel engine will smoke, but if the load is not critical, and the engine still smokes or periodically spits black, it means that most likely the fuel equipment requires adjustment or repair; this is a cost, which means another reason for bargaining.

You can purchase an LTZ-155 from the early 2000s for an amount from 120 to 500 thousand rubles. Anything below this price is spare parts.