The clutch does not turn on on the walk -behind tractor. Specifications

Clutch on a single tractor: types, device, principle of operation. AGRO UnAYOSY Tractor: Clutch repair how to adjust the clutch on a walk.behind tract

The clutch of the walk.behind tractor refers to important transmission elements. It provides the separation of the engine and the gearbox during the process of switching speeds. Due to this, the one.based tractor begins smooth movement from the place, and it also ensures its stop without absolute disconnecting the motor. How to properly adjust the clutch on the walk.behind tract is indicated below. If it is easier for you to perceive the information visually, you can contact the YouTube channel of the agricultural center, where video reviews on products are laid out, and tips are also given for its proper use. To familiarize yourself with the video, follow the link.

The heavy unoic tractor “Agro” is equipped with an 8-horsepower gasoline engine. The number of cylinders is 1, the appetivity is 4. By technical indicators, the device can be attributed to professional devices. Its endurance and power allow the use of the machine in areas with a total area of ​​up to several hectares. Engine cooling system: air blowing.

Engine model-gasoline UMZ-341. The parameters and the general scheme of the engine design are largely like the Japanese Honda engine GX240, the same number of horses, motorized resources, endurance and ability to work for many years without breakdowns. The degree of compression is reduced, so a single tractor can easily function even on an inexpensive gasoline type AI-76, 80 or 92.

The cylinder in the engine is located in an inclined way, the angle of inclination is 25 degrees. The motor is in a certain way lubricated with oil, namely: oil spraying does not occur. A special pump supplies oil (under pressure, using a pump) after filtering to all contacting parts of the engine. Engine volume is 333 cubic meters.cm.

The main characteristics of the engine of the agro

The same.based tractor has the following characteristics:

• can perform any agricultural work in small, medium and large areas;
• will be useful to gardeners;
• used for communal functions (cleaning, transportation, cleaning);
• sowing and collective work. planting cultures, root crops, harvesting;
• The steering wheel column is rotary, due to this option, the control handle can be placed at an angle of 30 degrees in two planes, as well as expanded mirror, thereby increasing the level of comfort when controlling the unit for cleaning snow, mowing of hay;
• large wheels;
• weight suitable for work of any complexity (160 kg);
• the availability of attachment equipment, the ability to adapt to work with the hinged from the walk.in “Ugra”, “Neva”, “Cascade”, “Salyut”, “Oka” and other motorbide;
• engine reliability, good reviews about work, endurance and durability.

Centrifugal clutch. device and advantages

This kind of element should be highlighted among other designs due to its reliability and durability. It is used in an automatic type checkpoint. Its design consists of the following elements:

• Flywheel;
• Pulley;
• Hubs with a locking groove and a venal;
• Flange;
• Bushings;
• Casing;
• Bearing;
• Stop ring.

One of the most important roles is played by a differential device associated with a centrifugal clutch. It helps to improve the maneuverability of technology and ensure smooth movement in turns.

Together with the clutch, the differential regulates the rotation of the wheelchass wheels at different speeds. over, the mechanisms transmitting power together perform the functions of the wheel locks. In some models, instead of differential equipment, a special device is installed, which blocks one of the wheelchass wheels at the command of the driver.

modern techniques are equipped with friction clutch. It is mounted between the motor and the gearbox. In this design, the driven details are closely related to the primary shaft of the checkpoint, and the presenters. with the crankshaft of the motor. In most cases, the leading and driven elements are made in the form of flat round discs, or in the form of a cone. As well as centrifugal, friction clutch is brought into the work by manipulations with a separate handle.

The principle of the clutch

Clutch for a walk.behind tractor consists of several important elements:

The leading part consists of the end side of the flywheel of the engine and the pressure disk. The disk rotates with an attached flywheel. At the same time, the disk can move along the axis in relation to the flywheel. Between these two elements there is a driven disk in which is located on the driven Val. Spring elements in the form of cylinders are located along the perimeter of the pressure disk. The function of the springs is based on the compression of the disk that they support.

In this case, the other end of the springs is in contact with the casing. Thus, the springs support the clutch for the walk.behind tractor in constant state.

The control mechanism is made of spin levers connected to the pressing discs by means of rods and pedal. Turning off the clutch, the owner of the walk.behind tractor involves the clutch cable that transfers an effort to spin levers. When compressing the springs, the levers are removed from the ledge from the pressure, which leads to the disconnection of the clutch.

The bearing reduces friction, avoiding the touch of motionless layering with rotation levers. Most models of motoblocks are equipped with three levers located at an angle of 120 degrees in relation to each other. Using the spring, each clutch lever returns to the initial position. In this case, the laying is moved to the distance you need to turn off the levers. If this distance is not achieved, then the clutch begins to slip.

Why is the clutch on the walk.behind tractor

The clutch of the walk.behind tractor refers to important transmission elements. It provides the separation of the engine and the gearbox during the process of switching speeds. Due to this, the one.based tractor begins smooth movement from the place, and it also ensures its stop without absolute disconnecting the motor.

How to properly adjust the clutch on the walk.behind tract is indicated below. If it is easier for you to perceive information visually, then you can contact.The channel of the company agricultural center, where video reviews are laid out for products, and also give advice on its proper use.

To familiarize yourself with the video, follow the link.

The principle of the clutch

Several important elements of such as control devices, the leading element and the driven parts are included in the clutch design for the clutch design.The design of the leading part includes the driven and friction disks.

Cylindrical springs are located along the perimeter of the pressure disk. With their help, the disk that they select is compressed. In this case, the other end of the spring is in contact with the casing.

The control mechanism is made from spin levers that are connected to the pressing disks housing using layering and lever.

Clutch adjustment

Clutch is a connecting link between the checkpoint and the control lever, so you need to know how to adjust the clutch on the motorized car.When the clutch fails, its failures are visible immediately:

• In this case, the clutch is completely squeezed out, and the one.axine tractor is torn from the place. To eliminate the malfunctioning data, tighten the adjustment screw;
• If the clutch is in the state, but the unoic tractor still does not give out the desired speed or stands still, then it is necessary to loosen the screw.

If a strange sound is heard from the gearbox during use, stop all the work quickly. The most common problem is the insufficient amount of oil or its poor quality. Check the oil level every time before starting work.

If the oil is replaced, but the noise does not stop, then you need to contact the service center for diagnosis.If problems are found with shifts of the gears, the cause must be sought in the correctness of the clutch settings, worn parts of the checkpoint or the shafts of the shafts of the shafts.

Knowledge of the correct adjustment of the clutch on the walk.behind tract will ensure your safety and the effectiveness of the work process. To purchase new products, you can follow the link!

All about the clutch for the walk.behind tractor

Motoblocks significantly facilitate the work of farmers and owners of their own personal plots. This article will talk about such an important element of the design of this unit as a clutch.

Purpose and varieties

The clutch carries out the inertial transmission of torque from the crankshaft to the transmission gearbox, provides a smooth start and speed switching, and regulates the contact of the gearbox with the motor block motor. If we consider the design features, then the clutch mechanisms can be divided into:

Dvivo (in a bath with butter) and dry mechanisms are distinguished by the environment of functioning. According to the inclusion mode, a constantly closed and unstable closed device is divided. In the way the torque is transmitted- one stream or two, distinguish one- and two-way systems. The design of any clutch mechanism includes the following elements:

The clutch friction clutch is most popular among the owners of motoblock technology, because it is easy to maintain, high efficiency and duration of continuous operation. The principle of work is the use of friction forces that arise between the faces of the slaves of the led and leading details.

The leading components work in a stiff bundle with the crankshaft of the engine, and the driven ones with the main shaft of the speed box or (in its absence) with the next transmission node.

Elements of the friction system are usually flat discs, but in some models of walk.behind engines, a different form is implemented. a column or conical.

In the hydraulic system, the moment of movement is transmitted through the liquid, the pressure on which the piston provides. The piston is returned to the original position with the help of springs. In the electromagnetic form of clutch, a different principle has been carried out. the movement of the elements of the system occurs under the influence of electromagnetism forces.

This species refers to constantly open. The centrifugal type of adhesion is used in boxes that automatically switch speeds. Not too common due to the rapid wear of the details and a large duration of slipping. Disk type, regardless of the number of disks, is based on one principle. Differs reliability and provides smooth start/disconnection of the unit.

The adhesion of belts is characterized by low reliability, small efficiency and rapid wear, especially when operating with high.power engines.

How to do it with your own hands?

Clutch on a single tractor can be made or changed independently if you have experience of locksmithing. For the manufacture or replacement of a home.made mechanism, you can use spare parts from cars or from a scooter:

• flywheel and shaft from the gearbox “
• hub and rotary fist from Tavria;
• pulley with two handles for the driven part;
• crankshaft from GAZ-69;
• B-profile.

Before you proceed to the adhesion installation process, carefully study the drawings of the mechanism. The circuits are clearly visible on the mutual arrangement of elements and phased instructions for assembling them into a single design. First of all, you need to thread the crankshaft so that it does not have contact with other details of the system.

Then put the motor block on the shaft. After that, prepare a groove for a squeezer bearing on the shaft. Try to do everything carefully and accurately so that the hub sat tightly on the shaft, and the pulley with handles. freely cranked. Repeat the same operation with the other end of the crankshaft.

Insert a drill with a diameter of 5 mm into the drill and gently drill 6 holes in the pulley, at an equal distance from each other. On the inside of the wheel linked to the drive cable (belt), you also need to prepare the corresponding holes. Plant the prepared pulley on the flywheel and fix it with a bolt. Mark the place corresponding to the pulmonary holes.

How to adjust the clutch at MTZ 82. an expert on technology

Checking and adjusting transmission mechanisms

Checking the main adhesion of the tractor includes checking its condition and adjusting.

Checking the condition. During the tractor movement along the smooth horizontal section of the road at the average rotation of the crankshaft of the engine, slow down the tractor with stop brakes. If at the same time the tractor engine stalls, then the clutch acts normally. If the engine does not stall, but only reduce the speed of the crankshaft rotation. the clutch slip.

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Checking adjustments and clutch consists in measuring the free stroke b pedal of the shutdown (rice. 79, a) or distance A (rice. 80, a) between the emphasis of 8 squeezing bearing and a pressure ring (or snipers), as well as distances in (rice. 80.6) between the end of the brake pad bonk and the end of the nut, when the block is pressed to the pulley.

Measure the gap A to the probe through hatches specially made to access the clutch.

Check the free pitch of the pedal using a device or ruler. If at the same time, violations in adjustment are detected, then the clutch must be adjusted.

Adjustment of the main adhesion of the MTZ-80 tractor. Open the thrust of the brake from the lever.

Free the clutch pedal from the exposure of the spring, for which wrap the bolt until it stops in the bracket and release the screw so that you can move the bracket. Changing the length of the thrust, set free stroke b pedal.

Turn the bracket against the course of the time of the clock until it stops into the screw and secure this screw from the bracket.

Unscrew the bolt until the pedal rises to the floor of the cabin.

Check the free stroke b pedal. The pedal squeezed out by the size of the free move should be freely under the influence of the spring, without freezing to return to its original position. Check and, if necessary, adjust the compression of the spring 8.

Adjust the gap in the brake, for which turn the lever against the course of the clockwork until it stops. Changing the length of the braking brake, achieve the coincidence of holes in the plug fork and pressed to the end of the lever.

Attach the craving to the lever and, if it freely connects to the lever, again. Shorten it by 7 mm, put it in place, put your finger and tighten the traction of the thrust.

With properly adjusted control of the brake, the spring 8 traction when turning off the clutch should be additionally compressed by 34 mm.

Adjustment of the tractor T-150K-if between the case (rice. 80, a) the shutdown mechanism and the end of the glass is a gap b, then change the length of the thrust. If there is no gap, then due to the wear of the linings of the driven disks, adjust the clutch by the restoration of the initial position of the ring levers, determined by the gap A between the ring and the emphasis of the squeezed bearing.

Adjustment by changing the length of the thrust (external adjustment). Open the stem of the pneumatic chamber from the rotary lever.

Loosen the mounting of the locknuts on the thrust and, rotating the thrust in the right direction, install the required gap A, then tighten the weakened counter.hacks and again check the gap.

Loosen the nuts of the attachment of the pneumatic chamber and, rotating the roller fork, combine the hole of the fork with the opening of the rotary lever. After that, connect them with your finger so that the stem is in the extreme rear position, and tighten the weakened nuts of the fastening of the pneumatic chamber.

Adjustment by changing the position of the squeezers (internal adjustment). Open the stem of the pneumatic chamber from the lever.

Bring one of the squeeze levers to the hatch, weaken the screws of the locking springs and unscrew the nut for one and a half revolution (turning the nut to one line changes the position of the ring levers of 1.1 mm).

Turning the crankshaft of the engine each time for 1/4 turn, weaken the tightening of the screws and unscrew the nuts of all the other three squeezed levers.

Loosen the mounting of the lock of traction and, changing its length, install the desired gap a.

Check the value and uniformity of the clearance between the emphasis and the ring when the clutch is turned on, as well as the simultaneousness of the touch of these parts along the entire circumference length during the clutch turning off.

Fix the adjustment nuts with locking plates, reliably tightening the screws of fasteners of the locking springs.

Release the nuts of the attachment of the pneumatic chamber and, rotating the roller fork, combine the holes of the fork with the holes of the lever. Connect them with your finger so that the stem is in the extreme rear position.

Check the course of the shutdown mechanism, which, when you fully press the pedal, should move 2122 mm, and the full pedal’s course should be equal to b.

Checking and adjusting the brake action. Click on the pedal, completely turn off the clutch and measure the gap in (rice. 80.6).

If the gap is not consistent with the norm, then with the clutch turned off (with the pedal pressed), rotating the nut, set the gap required by the technical conditions.

Adjustment of the tracking device. If the clutch shutdown pedal does not return to its original position, and its lever freely passes into the hole of the cabin floor, then the gap between the plunger should be increased (rice. 80, a) and the valve of the tracking device.

To perform this work, remove the tracking device from the tractor, having previously removed the hoses from it, as well as the plunger plug and the thrust from the levers.

After that, unscrew the transition nut and remove the spring and valve. Then weaken the locknut and, rotating the adjusting nut, set a distance of 1.8 ± 0.1 mm from the end of the plunger to the landing end under the valve. After adjustment, tighten the locknut, put the valve with the spring, wrap the transition nut in place. Put the tracking device on the tractor, connect it to levers and hoses.

AGRO UnAYOSY Tractor: Clutch repair

Auto mechanic, specializes in agricultural technology

Currently, special equipment is often used in agriculture and gardening. Here, such equipment as a single tractor is highlighted here. These devices allow you to quickly and efficiently process the soil. However, like any type of equipment, such equipment can also fail. Important components of this apparatus are the motor and transmission. These two components work jointly, while the mating is carried out through the clutch disk for the AGRO motoblock or other type of technique. In this case, it is required to consider in detail how the AGRO motornote is replaced and trapped.

Design and principle of action of the element

This mechanism, which, at first glance, has a complex design, in practice consists of only several elements, namely:

• Squeezing bearing.
• Basket where the discs are installed.
• Directly disk, which, under pressure, diverges into several separate components.

It can also be noted the presence of connecting couplings and traditional bolted clamps, due to which the design is mounted on the working plane. In the collection, the clutch is installed above the transmission. This device allows the main gear of the engine to smoothly combine with the gear gearbox.

In the absence of a clutch or its damage, switching becomes heavy, and at the time of inclusion, a metal crack is heard, since in the process of work it is difficult to combine not at the same speed of rotation. In this case, the smoothness of the switch is provided by the handle, from which the cable goes to the mechanism itself. This handle is released when switching.

In this video, you will learn how to repair the clutch:

Important! Despite the simplicity of the mechanism, it cannot be said that the element is easy to replace or repair in order to restore or change the constructive component, it is necessary to have some skills and experience.

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Thanks to this trick, the oil becomes more fluid and is easier to leave the motor. Sometimes there are problems with ignition.

Therefore, you need to know how to adjust it. Some hitch requires a refinement, but the owners do not consider this for difficulty. The leading bridge of the MTZ 1 Motoboblock 1. the gear semi.axial; 2. ball; 3. leash; 4. hairpin; 5. fork; 6. pin; 7. gear, led by the main program; 8. axis of satellites; 9. puck supporting satellite; 10. satellite; 11. puck of the supporting semi.axial gear; 12. semi.axial gear; 13. differential body; 14. final gear shaft; 15. gear leading the main program; 16. Stop Ring. The overflow of the carburetor with oil during intensive work must be eliminated by dirt and soot, wiping the valve; Put in place a locking needle; Adjust the fuel supply with a gas pump; Add a few more gaskets for a gasoline pump. We achieve the desired result when all the windows are confidently overlap with a rod, it is allowed when the edge of the cone is visible through the window as in the photo from above. But only the edges, this is important. Leave in this position for a while. Remove the side cover of the checkpoint, gears like new. One and simple but effective ways to increase the speed of the MTZ motornote is to replace the wheels with large in diameter. The roller 14 in a neutral position is fixed with a latch 15 rice. Unscrew the nut of the driven clutch drum. At this stage, it is important to check if the rod overlaps the windows of the intermediate shaft enough well. Check the pressure in the tires, it should be the same, at the level of 2 atmospheres, otherwise during the operation of the MTZ will be in one direction and the management will be difficult. To date, the most popular motors models are Japanese Honda and Chinese Lifan.

We have been repairing garden equipment since 1997

M-8g2 to replace the oil in the transmission according to the following plan: prepare a container for poor oil. To establish the causes of the malfunction will have to be extracted from the gearbox gearbox and intermediate shaft. The engine replacement usually does not replace the engines just like that. The manufacturer recommends running through the clock. If the traces of touching the checkpoint of the checkpoint are visible on the fork, we undermine the fork so that it does not touch the case from now on. Author: Vasily Martysevich.

Check the distance between the valves and make the recommended. It is a cast bracket with a bracket of 14 and a shkworm 16. Gear adjustment in the MTZ motornote

Increase in the speed of Belarus

To get maximum efficiency from the acquired MTZ motornote, many owners are interested in the possibility of increasing the speed of the unit. Experts recommend replacing the genees, which are put standardly, with accelerated. The difference is in the number of teeth. There are 61 tooths in the usual gear, and on the semi.shaft 12. Accelerated is somewhat different and has 55 teeth, and the half.ax 15.

The principle of action is to increase the speed of the rotational movement of the semi.shaft, and, consequently, the entire unit as a whole. over, the engine speed does not change. For example, in 4 gear after replacement, the speed will increase from 9 km/h to 15 km/h.

One and simple but effective ways to increase the speed of the MTZ motornote is to replace the wheels with large in diameter. It is explained simply. the enlarged wheel area covers a large territory.

Homemade centrifugal clutch

For one reason or another, it may be necessary to collect homemade adhesion to a single tractor. This task is quite real, but before proceeding, it is necessary to understand the features of the device.

The principle of interaction of any type is the continuous friction of its components. And this naturally leads to the fact that the details wear out and the device becomes unusable. Undoubtedly, the easiest way out in this situation is to buy a new mechanism, but the main drawback of this solution is its cost. The finished part is quite expensive, and this is the main reason why many owners of motor blocks make adhesion to the same.based tractor with their own hands.

Making the mechanism of clutch with your own hands

The assembly of the device is preceded by two necessary steps: studying drawings and selecting details. The drawing should be as understandable as possible, and all the components indicated on it must have a complete marking of the size and indicate their places in the device.

The following parts are needed to make a home.made mechanism:

• primary shaft and flywheel (well, for example, the corresponding parts from the gearbox of “previous decades) are well suited;
• the driven pulley (at the preliminary stage of the selection of parts you need to install two handles);
• serviceable hub and rotary metal fist (the best option is from the Tavria car);
• B-profile;
• GAZ-69 crankshaft.

After the set of necessary parts is formed, the assembly begins. The order of steps is as follows:

• Carefully shake the shaft so that after processing it does not contact with other details that will be installed on the device.
• On the prepared shaft, install the motor block hub.
• Determine the place where bearings will be installed. Turn these places. After the completion of this stage of work, the hub should get up for sure, there should not be any gaps, and the rotation of the driven pulley should be carried out easily, without touching anything.
• Drill six holes of an equal diameter of not more than 5 mm at an equal distance from each other in the pulley. A bolt of 10 mm long will be installed in each hole, which requires the presence of holes and on the other side of the pulley.
• Using the bolt, fix the pulley above the flywheel. Mark the holes that must coincide with the holes in the pulley.
• Remove the pulley and make marking holes.
• Process the shaft and flywheel so that after the groove they do not come into contact.
• Make a motor lock adhesion. To do this, you can take a pipe 3 cm long and 1 cm with a diameter. As a result of the assembly, you will need fixation on the pulley.
• Prepare the clutch cable for one.time tractor. As this part, you can buy a suitable cord and wind it up. As an option, you can use a cable for adhesion to a one.legged tractor made from a chainsaw cable with a working coil.

The finished clutch made for a walk-behind tractor with your own hands is well suited, for example, for the Argo and Neva MB-2 motor blocks. Users note that such a mechanism is of good quality and is quite durable.This is interesting: a clutch for a trailer to a walk.behind tractor.

How to make a clutch mechanism with your own hands?

Clutch on a single tractor works on a principle that provides for increased friction of the components, so the quick wear will not be possible to avoid quick wear. In this case, you should try to make a mechanism with your own hands. The design of homemade clutch will be made up of:

• primary shaft of the checkpoint and the flywheel of the car
• hubs and rotary fist from Tavria;
• B-profile;
• Two curtain legged pulley;
• Crankshaft from GAZ-69.

Subsequent work on assembling the mechanism looks as follows:

• First you need to hide the crankshaft so that it does not catch other elements of the walk.behind tractor;
• On the shaft we plant a full.time hub of a walk.behind tractor;
• Further on the shaft, it is necessary to put the place under the bearing. This operation should be performed as accurately as possible so that the bearing perfectly sat on the shaft. As a result, the hub should fit without any gaps, and the pulley should scroll;
• Then turn the crankshaft and do the same on its back;
• Then make 6 holes in the pulley with a drill with a 5-mm drill. The distance between them should be the same. Since 10 mm bolts will be used, on the back of the wheel driveing ​​the drive belt, it is also necessary to drill holes;

• Next, install the pulley on the flywheel, and pull off both spare parts with a bolt. After that, mark the spaces of drilling on the flywheel so that they coincide with 6 holes in the pulley;
• Remove the pulley and drill holes in the flywheel;
• After that, put on the pulley again and reliably pull the structure with bolts;
• The inner surface of the crankshaft and the flywheel is inhibit so that they do not fight against each other.

The finished design can be installed in the regular place in the walk.behind tractor. Do not forget to connect the cables, withdrawing them as far away from friction elements.

The Neva Unoa MB-2 is an agricultural unit designed to work on a variety of soil types, including previously not processed.

Available in various modifications with different types of engines:

The main works that can be performed on the Neva MB-2 walkover:

• soil plowing;
• cultivation, milling;
• watering (pumping station);
• hilling;
• Cleaning territories from grass, snow, etc.D;
• harvesting potatoes, onions, etc.D.

AGRO UnAYOSY Tractor: Clutch repair

Auto mechanic, specializes in agricultural technology

Currently, special equipment is often used in agriculture and gardening. Here, such equipment as a single tractor is highlighted here. These devices allow you to quickly and efficiently process the soil. However, like any type of equipment, such equipment can also fail. Important components of this apparatus are the motor and transmission. These two components work jointly, while the mating is carried out through the clutch disk for the AGRO motoblock or other type of technique. In this case, it is required to consider in detail how the AGRO motornote is replaced and trapped.

Adjustment

For good operation of the mechanism, it is important that it is correctly adjusted. If this or that detail is not operational, this is noticeable by characteristic features and is regulated in accordance with them:

• If, with a completely squeezed clutch, the unit breaks off, the setting is made using an adjusting bolt that needs to be tightened;
• If the operator has completely released the clutch, but the speed provided is not reached or the unoic tractor does not move at all, the adjusting bolt should be loosened;
• If the operation of the unit is accompanied by an uncharacteristic sound, it is necessary to drown out the engine and check the oil level; If the oil is enough, it is advisable to contact the service center;
• If there are difficulties when switching the speeds, check the condition of the roller roller slots and parts of the gearbox.

Malfunction of engine systems when starting

In the event that when checking the candles, they turned out to be wet, t.e. The fuel comes normally, but the motor does not start, the problem may be as follows:

• Air sunset through the seals of the carburetor, spark plugs, heads of candles and cylinders, as well as carburetor joints and engine cylinders.

If depressurization of the compounds is detected, it is necessary to carry out tightening fasteners, tighten the candles and check the integrity of the gaskets between the heads of candles and cylinders.

To eliminate this problem, it is necessary to ensure the free course of the damper, checking the quality of the drive work. If you find seizures, they need to be eliminated.

Violation of compression and malfunction in the carburetor

It happens that the launch is carried out, but its process is significantly difficult. At the same time, the engine of the walk.behind tractor operates extremely unstable and cannot develop sufficient power for normal operation.

The reason for this may be the loss of compression, which can be detected by:

In order to restore compression, you need:

• Check the technical condition of the gas distribution mechanism of the engine, clean the parts contaminated by the pile, and in the presence of defects, replace them.
• Check the condition of the piston rings and replace faulty components.

If in the process of operating the engine a black smoke comes out of the muffler, and an excess of oil is revealed on the electrodes of the candles or they themselves are covered with soot, this means that:

• An oversaturated fuel mixture is supplied to the carburetor;
• The sealing of the fuel valve of the carburetor is impaired;
• the oil.scrubbing ring of the piston was worn out;
• Air filter clogged.

To eliminate this problem follows:

• adjust the carburetor;
• replace the leaky valve;
• replace worn piston rings;
• Clean or replace the failed air filter.

In the event that when the engine is operating, light smoke comes out of the muffler, and the electrodes of the candles are dry and covered with white coating, this means that a lunch fuel mixture gets into the carburetor. This problem is eliminated by adjusting the operation of the carburetor.

Classification of clutch mechanisms

According to the existing constructive features of agricultural machines, they can be equipped with the mechanisms of adhesion of the following types:

• Clutch of the friction type. this kind of mechanism is in the highest demand among buyers. Its main advantages include ease in practical use and independent maintenance, as well as high performance and long service life;
• Clown of centrifugal type. this mechanism is not so popular due to their tendency to long slipping. Centrifugal clutch is equipped with a large number of rubbing details that lend themselves to intensified wear. In this regard, the centrifugal coupling is not in such high demand among farmers;
• Belong type adhesion. the main disadvantages of such nodes include low performance and extremely low reliability. The belt clutch of the walk.behind tract is quickly unusable, especially if the agricultural unit is equipped with a powerful engine;
• Disk type adhesion. the design of the agricultural machine may include a single.disc or multi.disc mechanism. Disk clutch on motor blocks is equipped with reliable spare parts, the correct arrangement of which ensures the smoothness of the launch of the walk.behind tractor used in the farm.

This kind of classification allows each of the buyers to choose the optimal mechanism for their walk.behind tract.

Motoboblock grip manufacturing with your own hands

With continuous operation, the adhesion spare parts are in constant motion, and they are erased, because even the most reliable elements wear out over time. Over time, you have to buy new spare parts or make everything with your own hands.Before making a clutch on a single tractor, you should get such spare parts:

• flywheel and primary shaft (the old gearbox from the Soviet
• a driven pulley with two handles;
• rotary fist and good hub (can be taken from a car Tavria);
• crankshaft (GAZ-69);
• B-profile.

It is worth first to consider the drawings of the clutch structure. This will greatly simplify the work.

Homemade clutch is made according to the following scheme:

• The crankshaft is flowing until he touchs the internal details of the equipment;
• A regular hub is planted on the shaft;
• Tighten a place under the bearing on the shaft. The hub is installed without gaps so that the pulley turns unhindered;
• The crankshaft is turned over, and the same actions are performed on the other hand;
• Six holes are made at an equal distance in the pulley with a drill with a five.millimeter drill. Ten millimeter bolts will be screwed in them;
• The pulley is installed above the flywheel, the elements are fastened with bolts. Places under the holes are noted, taking into account their coincidences with pre.drilled holes;
• The pulley is pulled out and the corresponding holes in the flywheel are drilled;
• The inner surface of the flywheel and shaft is pulled, until the details stop in contact;
• You definitely need a clutch handle on a single tractor. The tube is taken in length of 30 millimeters and in a diameter of 10 millimeters, it is attached on the pulley;
• The clutch cable for a walk.behind tractor can be taken from the old chainsaw. He is wound on a reel.

Independently prepared clutch can be installed on the following brands of motoblocks: Agro, Neva MB-2, cascade.