Motoblock "Agro" ("Agros"): Selection Of Spare Parts And Attachments. How Do I Adjust The Carburetor? Owner Reviews

2024 Author: Beatrice Philips | [email protected]. Last modified: 2023-12-16 05:33

"Agro" represents a whole range of heavy motoblocks, which are used most often by farmers, professional builders, foresters, and public utilities workers. It is impossible to imagine full-fledged work in various areas of the national economy without these devices.

Features and purpose

The units are distinguished by their reliability, wide functionality and high wear resistance. The weight and dimensions of the walk-behind tractor are comparable to those of small tractors, large "toothed" wheels increase the similarity. Agro is distinguished by its excellent performance, it has established itself as the best side and is enthusiastically acquired by farmers throughout the country. A similar technique is intended for such tasks:

• plowing the land;
• soil harrowing;
• cleaning the territory during heavy snowfalls;
• cleaning of bulky debris and foliage;
• transportation of heavy loads.

The block device is classic, there is a uniaxial scheme with a shaft that distributes power. The model has a robust drivetrain. Main dynamic nodes:

• gear reducer;
• tapered dry clutch;
• differential lock;
• reverse makes it possible to maneuver 360 degrees.

All these elements give the walk-behind tractor good dynamics, which allows it to work in the most difficult terrain, under any climatic conditions. Another important quality of the walk-behind tractor is the ability to connect various equipment, including foreign and "non-format" equipment, which is made by hand.

Such features make the walk-behind tractor a "workhorse" that can be used in a variety of situations as:

• mowers;
• soil hook;
• hilling unit;
• for cleaning snow blockages;
• potato diggers and potato planters;
• vehicle;
• cutter (you can put several).

In the basic configuration, there are only wheels and a hitch, which can provide fastening for various equipment.

The lineup

Motoblocks "Agro" are created at the specialized enterprise "Ufa Motor-Building Production Association". The history of the plant dates back to the creation of aircraft engines. More than twenty years ago, the management of the enterprise developed a model, which began mass production in 1998. Agrarians welcomed the emergence of a new unit; it began to enjoy massive demand among rural workers.

Unit characteristics:

• excellent build quality;
• low price;
• warranty;
• service maintenance;
• there is an UMZ-341 engine;
• single-cylinder four-stroke design (8 HP).

Recently, the manufacturer began to install Lifan engines analogous to the HONDA GX-220 model. The prices for these units are significantly lower, the power plant of the Lifan-170F is simple and reliable.

Design

The design of the walk-behind tractor is simple, it is not difficult to repair the unit in the field, you can always find the necessary spare parts on the market at a reasonable price. Agro characteristics:

• body length 1182 mm;
• height 855 mm and 1110 mm;
• ground clearance 252 mm;
• turning radius 1210 mm;
• unregulated track width 610 mm;
• the structure weighs 162 kg.

This unit has its drawbacks, but there are much more obvious advantages. The walk-behind tractor is planned for a processing depth of up to 205 mm, while the traction impulse can reach 100 kgf. A walk-behind tractor can transport half a ton of cargo at a speed of 15, 2 km / h. The engine is equipped with a UMZ-341 carburetor, which runs on low-octane gasoline. The motor has a "progenitor" - the Honda GX240 engine. The power plant is also capable of operating on 92 gasoline.

The engine has:

• volume 0.3 liters;
• power 8 horsepower;
• torque 17 N / m;
• there is only one cylinder in the engine, its diameter is 79 millimeters.

Fuel is consumed on average two liters per hour, its actual consumption is 395 (289) g / kWh. The oil is supplied under pressure using a pump, passing through a filter, it is well cleaned.

Additional dimensions:

• track 610 mm (changes are possible up to 755 mm);
• turning radius 655 mm;
• the skeleton of the frame does not have, instead of it there is a transmission case;
• parameters of wheels 6x12 inches;
• pressure in wheels 0, 09 -14 MPa.

The starter for the walk-behind tractor is the most important element, without it the engine cannot work normally . The part often fails, it is not difficult to change it. Also in the power plant there is a backup starter - an electric starter (on the latest models there are two of them). You can also start the engine manually. It is important to note that the amount of battery capacity affects the operating time of the starter.

The gearbox and differential are in the same block, it also has a shaft that takes power, the mechanism provides reliable adhesion. The differential allows you to have different wheel speeds when cornering, which gives a noticeable advantage when driving over rough terrain. The clutch is frictional, conical, constantly in contact with manual control.

If a strange grinding sound is heard in the gearbox, then this is a signal that it is necessary to add oil to the gearbox. It also happens that the oil is of poor quality. Therefore, it is best to use a lubricant recommended by the operating instructions. If in the process of using the walk-behind tractor there are complaints about the gearbox, then it should be disassembled and the gear teeth straightened. It often happens that the teeth should be changed. In order to correctly adjust the axial arrangement of the shafts, you should install additional rings for fixing. Also, bearings often wear out, they should also be replaced.

"Agros" proved to be excellent not only during tillage, but also on mowing, when deep potholes are not visible under the tall grass. The milling cutter of the walk-behind tractor is almost universal, questions arise only to excessively "heavy" soils, which are difficult to "take" to great depths.

The unit has a fuel tank of 6, 2 liters, the engine consumes about three liters per hour of operation. Much depends on the volume of work of the valves and the load on the engine, the consumption can reach four liters. On the market, walk-behind tractors are sold on average from 25 to 30 thousand rubles, there is always a steady demand for such equipment. A non-new unit with a complete set will cost at least 46 thousand rubles. If the technique is "zero", that is, completely new, then the price can go up to 65 thousand rubles.

Agro's analogues with which it successfully competes:

• "Belarus-09H";
• Burlak 10 DF;
• "Belarus 08 MT".

In general, the model has shown itself from the best side as a reliable and unpretentious unit. Many spare parts can be taken from other vehicles, for example, the size of the hub from VAZ is suitable for the Agro walk-behind tractor.

Attachments

"Agro" meets all the criteria, according to which the unit can be called universal. Any attachment is suitable for this device, but the following attachments work best:

• potato digger;
• front adapter;
• reversible plow;
• snow blower;
• dump;
• mower.

The mechanized block unit AHM-4 also showed itself well in operation, it makes it possible to turn the walk-behind tractor into a mini-tractor in a short period of time. KH mowers have also proven themselves at their best. A wide special brush ShchR-08 is useful for cleaning roads, as well as a universal trailer that allows you to transport payloads over rough terrain over long distances. Snow blower installed on a walk-behind tractor; able to cope with snow drifts up to one and a half meters high.

Principle of operation

The Agro walk-behind tractor belongs to the category of small-scale mechanization equipment and can be called the standard of reliability and high productivity. The unit is unpretentious in operation, requires minimal preventive maintenance, and is indispensable for work in summer cottages and large agricultural holdings. "Agro" works on a uniaxial basis, has a good transmission, in which there is a reducer (6 gears), a cone clutch, a differential with a lock. The machine has four gears, reverse and can withstand various mechanical and other loads. The steering column provides the ability to set the wheels at an angle of 32 degrees and make turns of 180 degrees, which gives the unit significant maneuverability.

Operating rules

Before starting to work on this unit, you should thoroughly study what the instruction manual contains. The engine of the Agro walk-behind tractor is unpretentious to fuel, it is permissible to use gasoline of the brand:

1. AI-80;
2. AI-92;
3. AI-95.

The second Lifan engine requires only 92 and 95 brands. It is important that the fuel is clean and free of impurities. The tap is located 1.6 cm from the bottom of the tank, so it should be borne in mind that the fuel that is located at the bottom remains in the tank and does not enter the engine. A similar design was made with intention so that as much as possible foreign impurities get into the engine. Before starting work, fill at least half of the tank.

It is better to use oil M-5z / 10G1 in the cold season. When the weather is warm outside, it is best to use oil - M-6z / 12G1. It is also permissible to use universal compositions 10W-30 and 15W-30. It is recommended to change the oil every 100 hours of unit operation. The crankcase has a volume of 1.22 liters. Transmissions are usually lubricated with standard Nigrol, and any equivalent labeled 80W-90 will do. The transmission tank can be filled with 2.55 liters of fuel.

If we talk about control, the levers are extremely unpretentious in operation, their repair and adjustment are simple . For lubrication, ordinary grease or its analog is quite suitable. At the beginning of work, close attention should be paid to the correct filling of fuel: not only gasoline is poured, but also oil, otherwise there is a risk of engine breakdown. After purchasing a new device, it is recommended at the very beginning to "ride" a little empty, so that the dynamic nodes get used to each other. It is useful to carry out any simple field work using only 50% of the power of the power plant.

The K45R carburetor forms a fuel mixture, the importance of its operation should not be underestimated. At the beginning of the warm season, adjustment and adjustment of this important unit should be carried out. For this, the following steps are taken:

• the screws that are responsible for adjusting the gas are removed, then they need to be tightened back a couple of turns;
• the engine warms up for about 15 minutes, while the lever responsible for the operation of the power plant is placed in the extreme position.
• using the throttle valve, the minimum idle mode of the engine is set;
• adjustments are made with the help of screws (if you unscrew a lot of them, more gasoline will flow).

Care features

Like any technical device, the Agro walk-behind tractor requires maintenance, so you should have a good idea of how best to carry out repairs. Reasons for breakdowns of the Agro unit:

• wear of parts;
• improper operation;
• disregard of safety rules.

The most common faults are:

• spark plugs do not work;
• engine oil is produced;
• gaskets wear out;
• the fuel wire is clogged;
• the chain breaks.

If you look more closely, you can draw the following conclusions. The transmission units are heating up, the reason is the heating of the bearings due to a lack of oil in them, it is also possible that the oil is substandard. To repair this unit, you must first disassemble, change the bearings, as well as the oil itself. Then you should adjust all the nodes and assemble all the elements. The most common breakdown is a disruption in the operation of the transmission; for this, the clutch should be debugged on time and correctly. If the clutch is too tight, then the screw must be unscrewed slightly. If slippage is observed, then the screw is tightened in this case. Sometimes the clutch needs to be disassembled. This is done in the following sequence:

• old oil is drained;
• the transmission is disconnected from the engine;
• the spring is removed from the pressure plate;
• disks are dismantled;
• the lock washer is removed;
• remove the nut that secures the drum;
• after elimination of defects, the assembly is carried out in the reverse order.

During operation, there are sometimes sudden jerks of the unit . This indicates insufficient tire pressure. Another reason is attachments that need to be tidied up and adjusted. Maintenance of the power plant is reduced in 85% of cases to the replacement of parts that have served their life. These include the large spring and the second starter. The electric starter is directly connected to the battery, testing and installation is done according to the instructions.

In order for the walk-behind tractor to work for many years without complaints, an average check of the unit should be done once every three months. The power plant has a belt connection. If the belt is too tight, it can be damaged. If the belt is too loosely tensioned, then "slippage" will be observed, the engine will not give out the required revolutions. A routine inspection of the belt is mandatory.

Owner reviews

The reviews from the owners of the Agro walk-behind tractor are mostly positive. Despite the fact that the weight of this device is quite significant, the presence of a reverse is a good help in the work. Maneuverability and cross-country ability was also noted by many respondents. It is also convenient that almost any equipment can be attached to the walk-behind tractor: you can both clean snow and plant root crops. The 8 horsepower engine is up to the task and easy to maintain. The owners of plots of 20 acres or more note that without such a unit it would be impossible to cope with the volume of work.

If we talk about shortcomings, then such a phenomenon is observed everywhere: the engine works excellently in a variety of modes, but the carburetor often "does not pull". In normal mode, it works flawlessly, but if excessive loads appear, the node begins to "float", failures appear. Sometimes questions arise with a fuel tank, which has a flat bottom. When driving over rough terrain, interruptions in the flow of fuel to the power unit are possible. Problems encountered:

• grease leakage;
• failure of spark plugs;
• clogged fuel line;
• wear of cylinder gaskets;
• jamming of the gearbox.

For twenty years, the plant in Ufa has produced two hundred thousand such units and the demand for them continues to grow steadily. Motoblock "Agro" is also supplied to other countries.