The UMZ-6 excavator is built on the basis of the tractor of the same name, produced from 1970 to 2001 by the Southern Machine-Building Plant. Wheeled vehicles were designed for agricultural work. During production, several modifications of the YuMZ-6 were produced, including the YuMZ-6KL excavator.

Excavator-tractor YuMZ-6: technical characteristics

The -6 itself became a descendant of the famous MTZ-5 tractor of the same manufacturer. The car retained the continuity of the design and was in many ways similar to its predecessor. The agricultural universal row-crop tractor belongs to the traction class 1.4 and is distinguished by a semi-frame layout, which is classic for machines of this purpose.

Engine and transmission

On the YUMZ-6 excavators, two types of diesel four-stroke engines without turbocharging were installed:

• D-65 with a volume of 4.94 liters;
• D-242-71 with a volume of 4.75 liters.

The engine power of the YUMZ-6 excavator was determined by its model. The factory D-65 produced 60 hp, and the D-242-71 - 62 hp. The D-65 power unit was supplemented with an electric starter starting engine. The rated speed of the crankshaft was 1800 rpm.

The transmission system of the YuMZ-6 tractor-excavator consists of a five-speed gearbox with a two-line dry clutch. The car develops a speed of up to 24.5 km / h. The gearbox is equipped with double gears. Some tractor models were supplemented with a reducer-reducer. The specific fuel consumption of the YuMZ-6 reaches 185 g / h.p. * h. The machine can climb inclines up to 10 degrees.

Tractor-excavator YUMZ-6: hydraulics

The hydraulic system of the YuMZ-6 tractors is designed to control the rear linkage. It is a complex system made up of:

• oil pump;
• oil filter and filling tank;
• hydraulic cylinder distributor;
• fittings designed to connect the hydraulic bodies of the aggregated machines.

The hydraulic system of the YuMZ-6 excavator is of a separate-modular type. The undercarriage is controlled by a single lever, which allows the machine to be used without instructions. The steering column is adjustable for installation angle and height. YUMZ-6 is a simple technique in all respects, maintainable and easy to operate.

Excavator YuMZ-6: overall dimensions

• length - 4165 mm;
• width - 1884 mm;
• cabin height - 2485 mm;
• longitudinal base - 2450 mm;
• track adjustable within the range of 1400-1800 mm;
• operating weight, depending on the configuration and model - 3200, 3400, 3700, 3900 kg.

Modifications

During the work on YuMZ-6, the Yuzhny Machine-Building Plant not only produced more than 100 thousand cars, but also offered the consumer several special modifications:

• YuMZ-6L, outwardly reminiscent of MTZ-50, were distinguished by a rounded radiator grill. The car was equipped with a starting motor;
• YuMZ-6AL - a car with a steering rack adjustable in height and angle, a modified dashboard, a rectangular hood and structural modifications in the brake system;
• YuMZ-6KL is an industrial modification of the tractor, produced without a rear hinged system. Instead, the manufacturer installed standard mounts for bulldozer and excavator equipment. In fact, it is the YUMZ-6KL modification that can be considered as an excavator. After the first model YUMZ-6A was discontinued, this version took the place of the base one. An agricultural machine was developed on its basis;
• YuMZ-6AK - was first released in 1978. The cab of the equipment was distinguished by better visibility, and the hydraulic system was equipped with power and positional control.

Application

Modification of the YUMZ-6 tractor with excavator equipment has become widespread among the domestic consumer. Despite the fact that the machines have been out of production for a long time, the technician continues to work on farms of various types.

Initially, the YUMZ-6KL model with a 65-horsepower engine and excavator equipment was intended for use in construction and public utilities. Relatively small dimensions and high productivity became the key to the success of the machine in Russia. In addition, the YUMZ-6 excavator has an undeniable advantage over its Western counterparts, and this advantage is its price.

A tractor adapted for agriculture based on the YuMZ-6KL became suitable for tilling, harvesting, planning and preparing fields, sowing and transporting goods in a unit with agricultural and industrial machines.

excavator yumz 6 akm.

borex

Yura (Sabah) I was going to buy such an excavator of 2006 with an operating time of 1100 hours. The motor costs d243. Tell me how this excavator is in general. Where are the weak points? Why is it cheaper than a Belarusian? Although the motor was carried with MTZ.

Ivan (Maruti) because yumz is also in africa yumz

Tags: How to operate a yumz excavator video

alteration of control levers, steering, installation of a compressor, generator for 220v.

question: there are four categories of tractor control A B C D can I drive an excavator at the YuMZ | Topic author: Victor

Kirill Where did you find such categories in the tractor license? I have everything open and they are A, B, C, D, E, F marked, but as you wrote, I have not seen such and have been working on such an excavator for several years.

Valery There is a separate category for the excavator.

excavator yumz - YouTube

excavator yumz. Andrey Snitkin ... Modernization of EO2621 excavator hydraulics based on YuMZ - Duration: 15:21. Alexander Skritsky ...

The need for high tractive power has become the main reason for the emergence of such a mechanism as a tractor. Its features are low speed and high tractive power. A powerful tractor, adapted not only for all types of loading and earthwork, it is also a mobile base for various kinds of mechanisms and devices. Therefore, to ensure versatility, the tractor is equipped with a hydraulic system.

Diesel, big wheels, hydraulics

The mode of movement plays an important role in the purpose of the tractor. If the tracked base is responsible for increased cross-country ability and high tractive power, then the wheelbase provides maneuverability and operational movement, as well as the ability to move on an asphalt surface. The wheel excavator bulldozer EO 2621 has the most convenient ratio of the diameter and width of the rear and front wheels, which allows to increase off-road patency;

• On construction sites;
• When developing quarries;
• When driving over rough terrain.

Combinations for full load

Jackhammers, grabs, excavators, bulldozers, all these types of hydraulic devices are indispensable in construction, development, mining and heavy industries and infrastructure. And all of them have a device for installation on a tractor bearing support. A successfully modified model - the EO 2621 wheel excavator is optionally completed with many quick-detachable equipment:

1. Backhoe - digs trenches, small holes and ditches;
2. Straight shovel - for loading operations, shoveling material (garbage, slag, sand, etc.) into one place;
3. Crane suspension - carry out loading and unloading operations, install a hydraulic hammer on additional equipment;
4. Loading bucket of normal or increased capacity - carry out cleaning work, loading bulk materials;
5. Forks - intended mainly for agricultural work (harvesting hay, silage, etc.);
6. Grab - a device for moving bulk materials of different fractions;
7. Ripper tooth - when digging frozen soil, a tooth is used for preliminary loosening. The use of a hydraulic hammer for such work is prohibited;
8. Hydraulic hammer - for crushing large stones in quarries, road surfaces, etc.

Modifications with various attachments

The EO 2621 wheeled excavator based on YuMZ has several modifications, which are determined by the configuration of the above hydraulic mechanisms during the factory assembly. With a selective configuration, the cost of an excavator can vary widely. Unclaimed functions are not only a wasted investment, but also a waste of potential and inconvenience to work. Incomplete lineup:

• EO 2621-10 - the presence of a bulldozer blade;
• EO 2621-12 - complete with hydraulic rotary type dozer blade;
• EO 2621-30 - dozer blade and digging axis of a displaceable structure;
• EO 2621-31 - with a displaced digging axis, no front dozer blade;
• EO 2621-32 - hydraulic drive with a dozer blade and a displaced digging axis.

Soil excavator

Mechanization increases the volume of excavation work done by several tens of times. A single-bucket excavator based on YuMZ EO 2621 operates smoothly in soils from 1 to 4 categories, at temperatures from -40 to + 40˚С. Categories 1 and 2 are soft to medium hard soils. When working with soils of 3 and 4 categories, assistance is required in the form of preliminary loosening.

1. Category 1 - loose soils (sand, gravel, crushed stone, etc.), soddy layer;
2. Category 2 - consists of medium-hard particles that bind each other (loam, fine and medium gravel);
3. Category 3 - dense loam, heavy clay;
4. Category 4 - permafrost or soils with seasonal frost penetration, dense rocks of quartz, limestone, etc.

Introduction of new technologies

Currently, the EO 2621 single-bucket excavator is produced by several factories in Russia, Ukraine, and Belarus. At this stage of production, new developments have been introduced that have put the operation of the excavator at a higher level, while improving the technical characteristics of the unit and the working conditions of the operator.

1. 6-section hydraulic valve with built-in safety valves provides smooth movement and switching operations, and precision of work;
2. Protective automatic systems to protect against errors in the work of the operator;
3. Levers and other controls are located at a convenient distance for the operator;
4. The ability to combine operations, saving time and labor.

Types of buckets EO 2621

The main and main working tool of an excavator is a bucket. Apart from hydraulic equipment, the main functions are volume and shape. The bucket volume of the EO 2621 excavator varies from 0.25 to 0.28 m³. It can be equipped with different types of teeth, which are made of more durable and abrasion resistant steel. Its purpose depends on the shape of the tooth:

• Standard
• Reinforced - for harder ground
• Ripper
• Trench - digging trenches with an angle of 90˚
• Profile - digging trenches with a given slope angle
• Rocky
• Loading

Models of domestic excavators are as close as possible to local natural working conditions, as well as economically feasible for repairs, replacement of parts and fuel.

The YuMZ excavator was designed by the Yuzhny Machine-Building Plant. This unit was designed on the basis of the YuMZ tractor. The machine has many positive functions that are indispensable when working in construction, digging canals, loading various goods. It is important to know how many characteristics this model has in order not to be mistaken with the choice.

The lineup

From the lineup we can distinguish:

1. Modification of the YuMZ-6L. The prototype of this model is the MTZ-50 tractor.
2. YuMZ-6AK. The tractor featured a cab with improved visibility. Installation of PTO at YuMZ significantly expanded the functionality of the attachments.
3. Model YUMZ-6AL. The tractor had an adjustable steering rack, a modified braking system, an updated dashboard and a modified hood.
4. Modification of the YUMZ-6KL excavator. Model 6KL is presented in an industrial version. The tractor is equipped with standard attachment blocks for bulldozer and excavator equipment, hydraulics and hydraulic systems are significantly strengthened.

The most common YUMZ excavator is EO 2621A. This model can still be found on any construction site today. Excavator dimensions:

• length - 4.165 m;
• width - 1.88 m.;
• height - 2.49 m.

The excavator weighs 3.2-3.9 tons. The weight varies due to the configuration and type of attachments.

Powertrain, transmission and hydraulics

Power units of YUMZ excavators are represented by four-stroke engines. Among them are:

• the D-65 engine with an installed power of 60 horsepower, in addition to the engine, a starter unit was installed;
• D-242-71 engine with 71 horsepower.

The volume of the D-65 engine is 4.95 liters. The volume of the D-242-71 engine is 4.75 liters. The technical characteristics of the power units regulate the crankshaft rotation speed, which is 1,800 revolutions per minute.

The YuMZ excavator has a 5-speed gearbox, which is equipped with a dry clutch. The drive shaft and the power take-off shaft are interconnected. The parts of the box are lubricated by splashing oil. The gearbox is controlled using the gear shift lever and the lock lever. The transmission specifications guarantee a speed of 24.5 km / h and a climbing angle of 10 °.

The YUMZ excavator (cockerel) loader has a hydraulic system of the aggregate type, which consists of the following components:

1. Oil TANK, which serves as a reservoir for hydraulic fluid. Located on the left side for better oil level control. This is convenient for the tractor driver.
2. Hydraulic distributor - 2 pcs. The hydraulic circuit implies the presence of a liquid flow distributor for better control of excavator mechanisms.
3. Gear pump. The hydraulic circuit is completed with standard pumps of the NSh-71 and NSh-100 types. The pumps are driven through a splined coupling from the transmission gear. The pump gears are cast in one piece with the shafts.
4. Hydraulic cylinders. The power cylinders of the hydraulics raise, lower the bucket and the blade of the YuMZ EO excavator. The cylinders are attached with brackets.
5. High pressure pipes and hoses are required to supply oil to the EO 2621 hydraulic system units.

Equipped with power steering for better control. The power steering activates the NSh-10 pump.

Operation and equipment

The excavator based on YuMZ 6 is adapted to work in a wide temperature range, is reliable and versatile in use. It copes with heat and has a great start at -40 ° C.

The design and layout of the excavator allows it to be used for various construction works.

Modernization and alteration make it possible to expand the range of trailed and attached equipment.

An example is a quick-release front loader.

Loader Specifications:

• lifting height - 4m;
• the time for replacing the working body is 1-4 minutes;
• thickness of knives - 20mm;
• bucket thickness - 4mm;
• lining thickness - 10mm.

The loader is designed to work with various loads (sand, grain, crushed stone, etc.), equipped with quick-release clamps, which significantly reduces the time of its installation and dismantling.