Minitractor Zubr: reliable equipment for your site

Currently, almost every farmer knows the Ukrainian manufacturer Zubr. The company specializes in the production of walk-behind tractors and mini-tractors, which are often used in the fields and vegetable gardens of Russia. Among all tractor models, it is necessary to highlight the Zubr 12E mini-tractor, since this machine, in terms of technical indicators, is the best option for working on a small farm with a plot area of ​​no more than 4 hectares.

In the process of developing the mini-tractor, the manufacturer took into account all the wishes of consumers who tried to make a mini-tractor out of a walk-behind tractor through improvements. As a result of this, a new class of equipment was developed, namely a motor-tractor (which is a walk-behind tractor modified to a tractor already at the factory). Thanks to this improvement, it was possible to significantly expand the functionality of the mini-tractor without additional material investments.

The Ukrainian model became the first exclusively factory-assembled machine, which later became the key advantage of the mini-tractor. The production of all components and parts is carried out by only one enterprise, which ensures increased reliability and quality of the machine. The basis of the mini-tractor was the Zubr JR-Q 12E walk-behind tractor, which is one of the most powerful in its model range. This allowed the new equipment to perform various tasks and at the same time use a lot of attachments. Instead of three wheels, the mini-tractor now uses four wheels, which has a positive effect on the capabilities of the equipment. The workplace was equipped with a comfortable driver's seat and full steering.

This model was introduced on the Russian market in 2013 in mid-autumn. It is worth noting that at the same time a Chinese mini-tractor was presented, which in many respects is similar to the Ukrainian model. In this regard, the manufacturer paid special attention to testing work. The model has gained quite a lot of popularity because it has low cost and increased reliability among its entire class.

Purpose

The Zubr 12E minitractor is an indispensable assistant when working in small areas. The model is often used in vegetable gardens and fields, as it can be combined with a lot of various attachments. In addition, the equipment has no more weight and quite compact overall dimensions. The low weight of the tractor allows operation to avoid causing significant damage to the fertile soil layer, and its compact dimensions provide the equipment with excellent maneuverability, making the machine most effective when working in conditions with limited space.

Who and what can attract the Zubr 12e minitractor

In the practice of mechanization of agricultural work, there is a certain relationship between the power of the tractor power plant and the area of ​​the cultivated land plot. When choosing a car, experts suggest focusing on the following parameters:

• up to 200 sq.m. A motor power of 4–7 liters is sufficient. With.;
• up to 500 sq.m. – 9-17 l. With.;
• up to 4000 sq.m. — 20-40 l. With.

Tractor Bison 12 l. With. will be effective on a plot of 5-6 hectares with soils that are easy enough to cultivate and terrain without significant elevation changes. Removable equipment will provide soil cultivation, lawn care, grass mowing, seed sowing, and plant spraying while protecting against diseases and pests. The use of a bucket blade, a rotary brush and a trailer simplifies the work of snow removal, area cleaning, and cargo transportation. The unit may be of interest to the owner of a small farm or personal plot for use in a complex of household and field work. It is not practical to plan its use for processing heavy and virgin soils or transporting cargo weighing more than 500 kg.

Attachments

The configuration of the Zubr 12E minitractor was practically no different from the taken walk-behind tractor. The model was supplemented with a special set that allows the installation of such attachments as: a rotary cutter, a plow and a meter-long working cutter. All this equipment is available as standard, when, in order to expand the scope of application, the manufacturer optionally installs other types of attachments, including a rotary mower, shovel, front blade, hiller, rotary plow, potato planter, potato digger, brush, wings and shovels for the front wheels, special mower mounting, as well as a front lifting mechanism that allows the use of loading units.

Advantages of a mini tractor

Car owners define the main advantage of the Zubr 12e as its diesel engine. The unit with a service life of 6000 operating hours is quite reliable and economical - 5.5 liters of fuel in the filling tank is enough for 2 hours of continuous operation. Water cooling prevents overheating of motor components. Additionally, you can note:

• maneuverability - turning at a radius of 2.5-3.5 meters, cross-country ability, sufficient traction force;
• power take-off unit, mechanism for attaching additional equipment;
• compactness;
• the presence of an electric starter, lifting hydraulics;
• simple operation and simple maintenance;
• quiet operation.

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Specifications

Dimensions:

• The structural length of the mini tractor is 1960 millimeters.
• Full width – 940 millimeters.
• Total height – 1200 millimeters.
• The smallest front track width is 800 millimeters.
• The smallest rear track width is 800 millimeters.
• The lowest ground clearance under the rear axle is 300 millimeters.

Engine characteristics:

• The type of engine installed is diesel, in-line.
• The brand of the installed engine is ZH-195 AN-2AM.
• Number of cylinders – 1 cylinder.
• Engine displacement is 815 cubic meters.
• The cylinder diameter is 95 millimeters.
• The piston stroke is 115 millimeters.
• Maximum power – 12 horsepower/8.8 kilowatts.
• The highest crankshaft rotation speed is 2300 rpm.
• Type of cooling system – liquid.
• Starting system type: electric starter.
• Type of lubrication system - gear pump.
• The lowest fuel consumption per working hour is 1.7 liters.
• The highest fuel consumption per working hour is 2.8 liters.

Transmission characteristics:

• The type of gearbox installed is combined.
• Engine drive type – belt.
• The differential lock is mechanical.
• Number of forward gears – 6.
• Number of reverse gears – 2.
• Clutch type: dry, single-disc.

Power take-off shaft characteristics:

• The type of PTO installed is independent.
• The number of power take-off shaft speeds is 2.
• Number of splines – 6.
• Control is mechanical.
• The lowest PTO rotation speed is 540 rpm.
• The lowest PTO rotation speed is 730 rpm.

Performance characteristics:

• Operating weight – 400 kilograms.
• Fuel tank capacity is 8 liters.
• The highest speed of independent forward movement is 23.5 kilometers per hour.
• The lowest speed of independent forward movement is 3.2 kilometers per hour.
• The highest speed of independent movement back is 6.97 kilometers per hour.
• The lowest speed of independent movement back is 1.27 kilometers per hour.
• Type of hitch – three-point.
• Front wheel size – 6.00-12.
• Rear wheel size – 6.00-13.
• Cultivation depth is 200 millimeters.
• The cultivation width is 900 millimeters.

Main breakdowns and ways to fix them

Attachment does not lift:

• The oil level in the hydraulic system has dropped below the minimum mark (add oil);
• The hydraulic pump is turned off (turn it on);
• The hydraulic safety valve is stuck (disassemble and clean the valve).

Brakes do not work:

• The free play of the pedal has increased (adjust its position);
• The brake disc or pad is worn out (replace the relevant parts).

Gearbox overheats:

• Small gear or bearing clearance (adjust);
• Lack of oil or its low quality (add oil that is suitable for this model to the required level);

The engine is not running stable:

• The fuel level has dropped below the minimum mark (you need to top it up);
• Belt stretch (must be set correctly);
• Fuel or air filters are clogged (clean them);
• The carburetor is clogged due to dirt (it must be disassembled, washed and cleaned);
• Problems with the ignition system (most often the spark plug comes off or it has become unusable).

Device Features

The key advantages of this mini tractor are the following:

1. Compact overall dimensions provided the equipment with excellent maneuverability and allowed it to be used in conditions with limited work space.
2. Compared to the same walk-behind tractor, the Zubr 12E mini-tractor has a larger number of wheels.
3. The model is equipped with full steering.
4. In order to ensure increased comfort while working, the driver's seat has been significantly redesigned and improved.
5. The minitractor can be equipped with additional loads weighing up to 500 kilograms. They allow equipment to work more efficiently on hard and difficult soils.
6. The manufacturer offers a huge range of additional mounted and trailed types of working equipment, which can also be used on other models of mini-tractors.
7. A powerful engine for its class is used.

But in addition to the advantages, the Zubr 12E minitractor also has disadvantages. One of them is the absence of a hydraulic drive, through which the mounted units are controlled. Another thing is the lack of a manual gearbox, which did not have the best effect on operating comfort.

The model is equipped with a single-plate, dry, friction clutch system, which is characterized by a simple design and durability. It also uses a V-belt drive located horizontally.

The tractor has a gear, combined eight-speed gearbox. It allows the car to move forward at speeds of up to 23.5 kilometers per hour. And the highest speed of movement back is 6.97 kilometers per hour.

The Zubr 12E minitractor is equipped with a drum brake system that uses only one wheel. The design of the mini-tractor has a classic design, since this design is very easy to maintain.

In addition to the main attachments offered, the machine is also capable of using units from walk-behind tractors during operation. It is worth noting that at present there are often counterfeits of this mini-tractor on the market. Some companies are promoting Chinese equipment under the ZUBR brand, which is not much different from the original machine. But you can still recognize a fake thanks to the “Zubr” badge, which in the original version is made of metal. Chinese models, due to the high cost of metal, have a regular paper sticker.

Reliability

The development, production of parts and assembly of equipment is carried out at the same manufacturer’s enterprise, which guarantees high reliability and quality of manufactured machines. Although the mini-tractor has a rather simple design, it is characterized by increased reliability and durability, due to which the service life of the machine has been significantly increased.

Repair features

Distinctive features of this model are low maintenance and operating costs. This is explained by the fact that most of the elements used are identical to the parts of walk-behind tractors, which allows not only to reduce costs, but also to facilitate the search, because if parts for a mini-tractor are unavailable for some reason, you can use walk-behind tractor units. According to this indicator, the Ukrainian model is one of the best in its class.

User manual

First launch and run-in

At the first start, you should add engine oil and diesel, and then proceed to break-in. This procedure involves using the Zubr mini tractor at a third of maximum power, which is necessary for high-quality lubrication of all engine components. Run-in should last about 10 hours. Then the oil should be changed.

Conservation

After the end of the work season, the Zubr minitractor must be preserved:

• Place in a covered room (garage);
• Drain engine oil and fuel;
• Clean from dust and dirt;
• Remove the battery and spark plugs.

Service

To lubricate the motor of the Zubr minitrack, oils with the SAE 10W-40 classification should be used. The lubricant should be replaced every 250 operating hours.

For transmission, it is best to use 85W-90 GL-5 oil. This unit should be replaced after 500 hours of operation.

Gear oil 85W-90 GL-5 Motor oil 10W-40

Fuel requirements

Most models of Zubr mini tractors are diesel and for their reliable operation it is necessary to fill in clean and fresh diesel, which should not contain abrasive particles, dirt or sediment.

Basic faults and repairs

If the mini tractor does not start, then the following faults can be solved independently:

1. Check the availability and quality of gasoline;
2. Make sure the fuel system is in working order;
3. Check the condition of the spark plugs, the connection of the electrodes to them and the entire starting system;
4. Adjust the proportion of the fuel mixture in the carburetor;

Owner reviews

• Recently, three of my friends in our village purchased these mini-tractors. Although we work only seasonally, the purchased equipment quickly repaid the investment due to its constant demand, inexpensive operation and the ability to carry out maintenance with your own hands and improvised tools. I also have this tractor. The equipment processed two and a half hectares without any complaints. At the moment, more than 1000 working hours have been put in and the mini-tractor is still working flawlessly.
• I had been thinking about purchasing this car for a long time, but at that time I didn’t have enough money to buy it. The year before last, on one of the sites I came across an advertisement for the sale of a Bison with a very affordable price. For use on a private farm with an area of ​​about three hectares, Zubr 12 can be called the best option. Among the shortcomings, I would like to note the lack of a hydraulic system. On the other hand, mechanical control in relation to cheap on-board hydraulics is simpler and more reliable in operation. The designers are great, I will recommend the tractor to friends and acquaintances.