The Agro walk-behind tractor is a multifunctional agricultural module for performing agricultural work on household plots and farm plots of small and large areas. The unit was specially developed in 1996 for a class of heavy agricultural implements called Agros (Russia).
The manufacturer of the Agro walk-behind tractor is constantly working to improve motor vehicles, modernize its individual assembly units and parts, increasing demand. The walk-behind tractor is included in the heavy category of professional units, characterized by high power, long-term operation and ease of use. Thanks to its large weight and increased traction force, the Agro agricultural mechanism performs all soil cultivation operations.
Specifications
The technical characteristics of the device are presented in the operating instructions and are as follows:
- Number of gears in transmission:
- forward - 4;
- back - 2.
- Maximum operating speed:
- forward in 1st gear with a mounted plow, soil tiller, trolley - 2.4 km/h;
- forward in 2nd gear with a mounted plow - 4 km/h;
- trolley - 5.5 km/h;
- in 3rd gear with a trolley - 6.5 km/h;
- in 4th gear with a trolley and cargo - 15 km/h;
- reverse in 1st gear with a snow blower, mower - 2.8 km/h;
- back in 2nd gear with a trolley - 2.8 km/h.
- Engine - UMZ-341.
- Engine type: 4-stroke, air-cooled carburetor.
- Power - 8 l. With.
- Fuel - automobile gasoline A-76 GOST 2084-77 or Normal-80 GOST R51105-97.
- Ground clearance - 250 mm.
- Track - 600 mm.
- Cultivation depth - 100 - 200 mm.
- Turning radius - 1200 mm.
- Temperature for operation - -20...+40°С.
- Overall dimensions -1700x850x1100 mm.
- Weight - 160 kg.
The engine of the Agros walk-behind tractor with a volume of 333 cm³ is similar in design features to the Japanese Honda GX240 engine, has a lower compression ratio, and is less demanding on fuel. The car is designed for gasoline from A-76 to AI-92.
The module has a reliable transmission and a 2 by 2 wheel suspension system. The wheels are mounted on final drive shafts and are equipped with pneumatic tires with a pressure of 0.08-0.12 MPa.
The Agros walk-behind tractor has a rod steering, adjustable in height and changing direction in the opposite, left or right direction at an angle of 30° to the main movement.
The manufacturer has also improved the lubrication system. Oil is supplied to the rubbing parts under pressure through a pump after filtration.
Attachments
Complete with trailed and mounted equipment for the Agros walk-behind tractor using a hitch, the unit is capable of performing a wide range of agricultural work, including:
- plowing the site;
- loosening, leveling the soil;
- land reclamation;
- chopping and removing weeds;
- hilling of industrial crops;
- harrowing;
- digging up root crops;
- planting seeds of grain and vegetable crops in the ground;
- mowing vegetation and bushes;
- landscape works;
- snow removal;
- transportation of goods.
The module is also used in housing and communal services.
Walk-behind tractors can be used with attachments, these are:
- plow NP-1;
- Rotary rotary cutter - 20.00.000;
- diggers;
- harrow-cultivator;
- potato planters;
- lugs;
- frontal mowers KN-1, KN-1.5, KN-02;
- 2-row hiller STV;
- snow blower SMB-2;
- trolley-trailer PTM-500.
Each mechanism performs its own operation. A potato digger for the Agros walk-behind tractor digs up root crops. The harrow cuts off the top layers of the earth without turning the soil. A trolley with a load of no more than 400 kg is a single-axle, tipper trailer with a body that tilts 30° back and is used when transporting crops, equipment, and household items.
The peculiarity of the Agros design is that it has a universal hitch, with which it is possible to attach additional equipment from other manufacturers and home-made attachments.
Front adapter
The front adapter is a special module attached to the walk-behind tractor and consisting of the following parts:
- driver's seat;
- frame for installing structural parts;
- wheel axle or axle with 2 wheels;
- hitch for attaching a walk-behind tractor and adapters for attachments;
- steering wheel.
Such a machine is similar in functionality to a mini tractor, in which the driver occupies a comfortable position and skillfully controls the mechanism. The front adapter is easily assembled with a walk-behind tractor and can be combined with any attachment.
The manufacturer does not produce a device for the Agro walk-behind tractor, but the universal hitch allows you to install adapters from other manufacturers. Some owners of motor vehicles make an adapter for a walk-behind tractor with their own hands.
Rotary mower
The KM-0.5 rotary mower is designed for the Agro machine. It consists of 2 self-sharpening knives located on the bottom surface. The height of the blades is 0.5-10 cm. The mower mows grass and small shrubs.
Carburetor gx 390
Before considering how to adjust the carburetor on an Agro walk-behind tractor, you should clarify which option is installed on the walk-behind cultivator, which will allow you to analyze in more detail the process of actions that need to be performed to adjust the device. Let's consider the main points regarding this device, and also version 45 for Agro walk-behind tractors, since they are most often found when arranging a cultivator:
- First of all, it should be noted that the 390, unlike the 45, is produced by Honda.
- In turn, the carburetor for the Agro 45 model walk-behind tractor is made by a domestic manufacturer.
- This device has a corresponding adapter for installation on a motor cultivator of this version.
- The device is equipped with two separate devices for adjusting the position of the damper.
- This well-known model is very popular, but has a relatively low cost (you can purchase the part for 1.5 thousand rubles in the appropriate store or online).
In this video you will learn more about the GX390 carburetor:
Description
This version is nothing special. Here, standard materials and technologies are used in production. The only thing that can be highlighted is the noticeable quality of the Japanese part in comparison with domestic analogues, or similar carburetors from other manufacturers. The device is equipped with a traditional neck, a special valve, and in addition a fuel tap for pumping in an enriched mixture. Additionally, the necessary elements for adjusting the position of the damper are displayed on the design.
Breakdowns and repairs
The Agro unit differs from other heavy-duty models in its long service life and reliable operation.
The operation of the walk-behind tractor is influenced by operating conditions, proper running-in after purchasing the factory unit, and timely maintenance and care.
If the unit is under warranty, then all repair work must be carried out by the module manufacturer. The owner has no right to open the seals and repair it. If the malfunctions of the walk-behind tractor are minor, then you can adjust its operation yourself.
Possible breakdowns and damage are presented in the repair instructions for the Agros walk-behind tractor and have a general appearance. Among them are the following:
- problems with starting and engine malfunctions;
- The chassis does not work;
- malfunctions in the gearbox (gearbox);
- clutch failures;
- the lubrication and cooling system is broken.
Operating Instructions
Before using the Agro walk-behind tractor, you must read the operating instructions. It describes the principle and nuances of working with the mechanism.
However, over time it may get lost. In such a situation, the operating instructions can be downloaded from our website.
Oil and fuel
A distinctive feature of the UMZ-341 engine is its unpretentiousness to fuel. You can use AI-80, AI-92 or AI-95. But Lifan only works with 92 and 95 brands. The main thing is to fill in pure gasoline without foreign impurities. Because in this case there is a high probability that the fuel system will become clogged.
An important nuance is the fact that the fuel intake valve is located at a height of 1.5 cm from the bottom of the tank. And the fuel that is below does not enter the carburetor. This was done specifically to prevent mechanical impurities from entering the fuel pump, since the Agro walk-behind tractor is operated with soil and there is a possibility of soil getting into the tank. Therefore, before starting work, it is necessary to fill at least half a tank of gasoline.
The operating instructions for the K45R carburetor recommend using M-5Z/10G1 oil in winter, and M-6Z/12G1 oil in summer. If you don’t want to think about what time of year to use oil, then you can buy a universal one from the 10W-30 or 15W-30 series.
It is necessary to change the oil every 100 hours of operation of the Agro walk-behind tractor. The crankcase volume is designed for 1.2 liters.
To lubricate the transmission, you can use regular Soviet Nigrol or any other equivalent with a classification of 80W-90. The transmission tank capacity is 2.5 liters.
The control levers are also easy to maintain. To process them, you can use classic Litol-24 or Fatty Solidol.
Run-in
Particular attention must be paid to the start of operation, since the longevity of the Agro walk-behind tractor will depend on the correct start.
Before the first start, be sure to fill not only gasoline, but also oil!
Because they are sold from the factory without these fluids. And if you forget to pour oil into the crankcase of the Agro walk-behind tractor, then strong friction will occur on the parts, and you can break the mechanism even before full work begins.
Before active start of operation, it is necessary to run in the Agro walk-behind tractor. This assumes that it is used at half the maximum power. The ideal break-in option is to drive with an empty trailer, since there is a load on the engine, but it is small. If there is no trailer, then you can start doing field work at half power. If your plow is designed to immerse 18 cm into the ground, then when running in you should not immerse more than 9 cm.
Running in the Agro walk-behind tractor is done so that the parts get used to each other and fit securely into the grooves.
Agro walk-behind tractor at work:
The Agro walk-behind tractor is a piece of equipment, and no matter how reliable it is, sooner or later something may fail and you need to know how to repair it.
Major breakdowns
The main cause of breakdowns in Agro walk-behind tractors is considered to be wear of parts or their incorrect settings. This question is especially relevant when starting a robot after winter downtime. Therefore, before starting operation, it is necessary to completely inspect the entire walk-behind tractor system, eliminate possible problems and configure all parts of the device.
During operation, the following breakdowns most often occur:
- Spark plug fault;
- The oil in the units has run out;
- The cylinder head gasket is worn out;
- The fuel system is clogged with debris;
- The gear chain has become unusable.
Let's take a closer look at each part, possible breakdowns and ways to solve the problem.
Strong heating of transmission units
The main cause of this breakdown is wear of the friction bearings, lack of oil in the transmission, and poor quality of the lubricant. To repair these problems, you should: change the bearings, replace the transmission oil or top it up.
Jerking during operation
The main problem here is the condition of the wheels: different tire pressures or the tread has worn out. There may also be improper adjustment of the attachment.
For repairs, it is necessary to check the tire pressure or make the correct adjustment of the hitch.
Large vibration of the Agro walk-behind tractor
This behavior of the walk-behind tractor is typical when attachments are connected incorrectly or bolted connections are loosened. In this case, it is strictly prohibited to carry out work. Stop the engine and tighten the bolts.
Problems starting the engine
Before you begin repairing the Agro walk-behind tractor, you need to determine the problem. There may be two of them in the engine: the engine does not work at all, or it works, but intermittently.
Solutions:
- Before starting, visually inspect whether everything is in order, whether oil is leaking anywhere, or whether there are any damaged parts. Then check the tightness of all bolted connections, tighten if necessary;
- After winter inactivity, the following problems in engine operation are possible: Contacts have oxidized;
- They forgot to drain the gasoline and oil, and over the winter a large amount of water accumulated in it;
- Debris has accumulated in the K45R carburetor jets;
- The insulation of the wires has been damaged.
Reviews from owners of the Agros walk-behind tractor
Vitaly S., 36 years old, Moscow region
For 10 years now I have been using a walk-behind tractor from manufacturers from Ufa. I was never disappointed in the purchase. I like the engine, which in terms of design is much better than its imported counterparts. But there is also a drawback - the cutter is not designed to work on heavy soils and great depths. Otherwise, I didn’t see any negative sides.
Valery P., 52 years old, Volkhov
High quality walk-behind tractor. So far in Russia there is nothing better than Agro. I recommend him to everyone I know.
friends help who knows how to install a starter on a Ural motor | Topic author: Pasha
who knows how to install an electric starter in the Urals, I will also buy spare parts for it, namely the gearbox and everything related to the chapper industry!
Artem (Keeva) There are several methods for installing a starter in the Urals.
Pasha (Vidar) how to modify the flywheel and I have a starter from a disabled person
Artem (Keeva) You will need to make teeth on it. After which the flywheel will need to be balanced. I almost forgot, I will need to grind out a bracket to attach the starter to the box. There is a more usual way - Buy a box from Ural Wolf or Ural Voyage - at their launch it is standard.
Pasha (Vidar) where can you modify the flywheel? You don’t have such friends
Artem (Keeva) On a disabled person, it looks like the engine is running from Izha. Some people install a flywheel from a 406 Muscovite.
Pasha (Vidar) well, you’ll hardly find such a flywheel and the season is just around the corner
Artem (Keeva) Yes, I have friends who do this. I'll introduce you later. But if I were you, I would think carefully about whether you need a starter. It’s just that now you won’t surprise anyone, and the saved money can be spent on more useful spare parts for the bike.
Pasha (Vidar) may just want to build something not bad, even though they say that the first one is damn lumpy, and there’s not enough information on this topic, but if I talk to your friends, I’ll probably emphasize a lot of useful information, and thank you very much for everything!
Artem (Keeva) Okay, I’ll help in any way I can))) By the way, maybe I’ll try to find ready-made spare parts for you. As for information, there is a lot of it on this topic here https://oppozit.ru
Max (Benedicto) dude installed the starter on a Java 638, used a starter from an 8 and gears from a grinder
Max (Benedicto) https://.ru/albums5461876 in fact, he has a lot of fascinating things in his albums. Artem, you didn’t answer me in one thread =)
Tags: How to install an electric starter on an agro walk-behind tractor
General information, purpose and design features
For starters, it’s about and “Agro” - absolutely identical walk-behind tractors. Agros is an earlier version, and the design of the model has remained almost unchanged over many years of production.
The car is produced at the Ufa Engine Plant, which was founded in 1925. In the 1920s and 1930s, the company was considered the largest manufacturer of aircraft engines in the USSR. In peacetime, the plant began to master the production of agricultural machinery. The company's workforce now consists of more than 200 people. As for the Agros walk-behind tractor itself, its production began in 1998. The project turned out to be so successful that over the past years, about 40 thousand walk-behind tractors of the same name, as well as various attachments for them, have been produced and sold.
The production of the walk-behind tractor of the same name was completed in 2008 due to a complete stop in the production of all such equipment at the Ufa plant. The fact is that the company began to receive more orders for the production of aviation equipment, which is more profitable. In this regard, the assembly of "Agros" was stopped. However, later the walk-behind tractor began to be produced at another plant, which belongs to the Chamber of Commerce and Industry of Ufa-Mechanika LLC.
The lineup
Motoblocks "Agro" are created at the specialized enterprise "Ufa Engine-Building Production Association". The history of the plant dates back to the creation of aircraft engines. More than twenty years ago, the company's management developed a model that began production in 1998. Farmers welcomed the appearance of the new unit; it began to be in mass demand among rural workers.
Unit characteristics:
- excellent build quality;
- low price;
- guarantee;
- service maintenance;
- the engine is UMZ-341;
- single-cylinder four-stroke design (8 hp).
Attachments
- Mounted walk-behind tractor
- Plow PN
- Segment mower KM-0.5 and KN-1
- Soil cutters
- grouser
- Motoblock blade
- Potato planter
- Potato digger
- Hiller
- Snow blower SB-2B
- Road brush ShchP-09
- Trolley-trailer PTM-500
In addition, the equipment can be equipped with a universal hitch, which allows the use of attachments from many other brands.
“Agros” is a multi-purpose equipment, indispensable for work in personal plots, small farms, and is also in great demand in gardening, horticulture and the public sector.
The walk-behind tractor is very convenient for everyday use. Thus, elements of convenience include an adjustable steering rack, which can be adjusted horizontally and vertically. In extreme cases, the rail can be rotated 180 degrees. This feature allows you to better feel the walk-behind tractor when cultivating soil, clearing snow or driving on heavy off-road conditions. In addition, the correct setting allows you to adjust the machine to suit you so that you get less tired.
Carburetor gx 390 on agro walk-behind tractor
Auto mechanic, specializes in agricultural equipment
At the moment, when processing soil, humanity uses various special-purpose equipment. There are devices of varying complexity here.
Special attention should be paid to motor cultivators, since this series of equipment is used everywhere from agriculture to personal gardening. This equipment option is not distinguished by a complex device, however, equipment owners need to understand how the carburetor and fuel supply of the Agro walk-behind tractor, as well as other common models of equipment, are adjusted in practice
Characteristics and dimensions
The Agros walk-behind tractor has the following characteristics: the track is 600 mm, the turning radius is at least 600 mm. The ground clearance of the walk-behind tractor is 250 mm. The equipment is designed to overcome fords up to 300 mm deep. Tire parameters – 6x12 inches. The maximum processing depth is 200 mm.
A 4-stroke single-cylinder carburetor running on gasoline fuel is responsible for performance. This is a domestic UMZ-341 engine with a power of 8 horsepower, which has a forced air cooling system. The design of the engine is completely identical to the Japanese Honda GX240 engine. A special feature of the engine is its low compression ratio, which allows it to work even with low-quality fuel. Thus, gasoline with both low and high octane numbers is allowed.
The cylinders in the engine are located at an inclined angle of 25 degrees. Let us pay attention to the improved lubrication system in the UMZ-341 engine. Thus, the operating principle of the new technology is not to spray oil, but to supply it under high pressure to the rubbing elements. The supply occurs under the influence of the oil pump after the oil has been filtered in a replaceable filter.
Among other characteristics of the UMZ-341 motor, we note:
- Dimensions: 490x440x375 mm
- Volume 0.3 liters
- Torque 17 N/m
- Compression ratio – 7.4
- The piston stroke is 68 mm, the cylinder diameter is 78 mm.
The engine, which weighs 35 kg, is started by a manual starter. Alas, there is no electronic starter even in the basic configuration. But there is support for cheap fuel starting from the A-76.
The engine works with a six-speed manual transmission, which has two speeds for forward movement. The built-in reverse allows you to move backwards and thereby improves maneuverability, which is very convenient, for example, when processing small areas with many obstacles that have to be avoided.
Let us note the main features of the transmission:
- The design includes a conical “dry” type friction clutch. The clutch has manual control.
- The main gear is presented in the form of a pair of bevel gears with circular teeth.
- Gear bevel differential with forced locking.
Engine parameters
The heavy walk-behind tractor "Agro" is equipped with an 8-horsepower gasoline engine. Number of cylinders - 1, stroke - 4. According to technical indicators, the device can be classified as a professional device. Its endurance and power allow the machine to be used on areas with a total area of up to several hectares. Engine cooling system: air blowing.
Engine model: gasoline UMZ-341. The parameters and general design of the engine are in many ways similar to the Japanese Honda engine of the GX240 brand, the same number of horses, engine life, endurance and ability to work for many years without breakdowns. The compression ratio is reduced, so the walk-behind tractor can easily operate even on inexpensive gasoline such as AI-76, 80 or 92.
Gasoline engine HONDA GX 240 Engine UMZ-341
The cylinder in the engine is located in an inclined manner, the angle of inclination is 25 degrees. The engine is lubricated with oil in a certain way, namely: there is no splashing of oil. A special pump supplies oil (under pressure, using a pump) after filtration to all contacting parts of the engine. Engine capacity is 333 cc.
Prices in Russia
The average cost of a new Agros/Agro walk-behind tractor is in the range of 50-60 thousand rubles. This is what the basic equipment costs, while versions with attachments are much more expensive. Attachment options increase the price by an average of 10 thousand rubles.
Since the walk-behind tractor has been in production for decades, it can be found on the second-hand market in huge quantities. You should beware of specimens in poor condition, of which there are quite a lot. Experience shows that a walk-behind tractor in good condition will cost about 30-40 thousand rubles, including attachments.
The Agros walk-behind tractor successfully competes with the Belarus-09N and Burlak 10 DF models.
Fuel supply problems
If attempts to start the walk-behind tractor are unsuccessful, this means there is a malfunction in the engine or starting system. In order to determine the source of the breakdown, you first need to check the spark plugs.
If the spark plugs are dry, this means that the fuel mixture is not entering the engine cylinders. There may be several reasons for this:
- there is no fuel in the tank;
- the fuel supply valve is closed;
- the hole in the gas tank plug is clogged;
- foreign objects have entered the fuel supply system.
To resolve fuel supply problems, you must:
- Fill the tank of the walk-behind tractor.
- Open the fuel tap.
- Clean the drain hole located in the gas tank cap.
- Remove the fuel valve, drain the gasoline from the tank and rinse it with clean gasoline. After this, you should remove the connecting hose located on the carburetor side and blow it out together with the carburetor jets without disassembling the latter using a fuel pump.
If fuel enters the carburetor but does not reach the cylinder, the problem is in the carburetor itself. To eliminate it, this unit must be removed, disassembled and cleaned. Well, after that - assemble and install in place. Therefore, before performing all the necessary manipulations, it will not hurt to refresh your memory of the structure and principle of operation of the carburetor.
Areas of application and design of the Agro walk-behind tractor
The Agro walk-behind tractor belongs to the class of heavy agricultural equipment. The model is intended for active use in both small and large areas.
The tasks that the Agro walk-behind tractor successfully copes with include:
- effective cultivation of the site, regardless of the type of soil and the number of weeds;
- hilling beds planted with root crops and other agricultural crops;
- weeding between rows and beds;
- mowing vegetation of different heights and thicknesses;
- clearing the area of snowdrifts;
- planting and harvesting potatoes;
- harrowing or plowing areas with virgin soils;
- transportation of luggage and gardening equipment with a total weight of up to 500 kg.
One of the main advantages of the Agro walk-behind tractor is its impressive weight. Thanks to the large mass, the equipment is pressed more tightly to the ground, which allows it not to slip and loosen the soil better, and also completely eliminates the unit’s sliding on the ice surface.
To manufacture the Agro walk-behind tractor, a standard single-axis design is used. The design of the model includes a power take-off shaft. In order to increase productivity, the manufacturer included a differential with manual locking in the walk-behind tractor configuration. This design feature allows the power of the unit to be evenly distributed on both wheels to improve maneuverability when moving up and driving in hard-to-reach places. A well-designed transmission of the walk-behind tractor allows it to move at any of four forward and one reverse speeds.
The engine of the Agro walk-behind tractor is equipped with a large fuel tank with a volume of approximately 5 liters. The large capacity of the tank in the design of the unit is due to its consumption of a significant amount of fuel - on average this figure is 2 l/h. work. All motor parts are made of durable metal alloys that are highly resistant to wear and corrosion.
The steering wheel of the Agro walk-behind tractor can be adjusted to the height of the operator. If necessary, it can be shifted relative to the original position in the vertical and horizontal plane by 30 ⁰. This feature significantly increases control accuracy when moving in hard-to-reach places.
Technical characteristics and equipment of the Agro walk-behind tractor
The walk-behind tractor from the Agro brand is equipped with a UMZ-341 motor. The advantages of this engine include high endurance, the ability to operate smoothly in the most difficult conditions, a long service life and an impressive power reserve.
The model produced by Agro has quite large dimensions. The length of the walk-behind tractor is 180, the width is 85, and the height is 110 cm. The ground clearance of the unit is 25 cm, which is more than enough to overcome obstacles encountered on rough terrain. An area with a diameter of 120 cm is enough to completely turn the walk-behind tractor.
The track of the Agro walk-behind tractor is not adjustable - it is 60 cm. The weight of the model is quite large - 160 kg. The traction force of the unit is 100 kgf, and the maximum plowing depth is 20 cm. When using a trailer for transporting crops and tools, the maximum luggage weight is 500 kg. The maximum speed of movement, however, does not exceed 15 km/h.
Engine characteristics of the Agro walk-behind tractor include:
- engine power – 8 l. With.;
- rotation speed – 3600 rpm;
- maximum possible torque – 17.2 Nm;
- working cylinder diameter – 7.9 cm;
- compression indicator during operation is 7.4.
To refuel the Agro walk-behind tractor, various brands of gasoline can be used, ranging from AI-76 to AI-92.
The Agro walk-behind tractor package includes an instruction manual, a set of keys for self-assembly, maintenance and repair, as well as cutters for plowing the soil.
Unstable speed
The main complaint of owners about the operation of the device is the instability of engine speed, as a result of which it begins to sneeze.
The cause of the malfunction may be the establishment of a large gap in the gearbox cover, which should be adjusted to values from 0.2 to 0.5 millimeters. In this case, power may decrease, which is a consequence of contamination of the carburetor, fuel pump hose or air exhaust filter, as well as crankcase failure and carbon deposits in the fuel combustion chamber. You just need to inspect and clean all the components.
This is interesting: video repair of a Cascade walk-behind tractor with your own hands.
