Motoblock Ural do-it-yourself engine repair

Selection and installation of the engine on the Ural walk-behind tractor

All gardeners and gardeners prepare their plots at the beginning of seasonal work. Many people use walk-behind tractors to plow the land. But not everyone can buy the latest models and continue to use the legacy of the Soviet Union. One such unit will be discussed today.

Motoblock "Ural"

Motoblocks "Ural-UMP-5V" first began to be sold in the country just before its global redistribution at the dawn of the 90s of the last century. Since many people needed walk-behind tractors as a convenient and cheap technical tool, it became very popular in the USSR. In just a few years, its sales reached 150 thousand units. The optimal combination of its characteristics contributed to the popularity of the walk-behind tractor.

The developers were able to combine the high performance of the walk-behind tractor, which was achieved by a five-horsepower gasoline unit that accelerates it to a speed of 15 km/h, combined with battery power sufficient to cultivate up to 2 hectares of arable territory. In addition, the unit could transport cargo weighing up to half a ton.

The walk-behind tractor has a wide adjustable ground clearance, which allows the device to be used in different types of areas. But it is worth noting that the basic Ural model is not particularly multifunctional. It can only transport cargo and cultivate the soil. It will not be possible to mow grass, remove debris or snow using attachments with this type of equipment - such capabilities are not provided. But if you remake the design yourself, adding the necessary fastening units, you can expand its functionality.

The model is implemented according to the scheme of transferring power to the wheels via a differential. Some modifications use foreign high-power engines, but domestic options are the most popular due to the availability of spare parts, proper documentation and durability.

Motoblock Ural. Technical Parameters and Applications

In the 90s of the last century, owners of subsidiary plots, farmers, gardeners and summer residents working on the land had the opportunity to purchase means of small-scale labor mechanization.

One of these new products was the Ural walk-behind tractor. At a speed of 15 km/h, he towed a half-ton trailer, plowed the land, and cultivated vegetable gardens on 1 hectare of area.

Motoblock Ural

Few people guessed behind the name a defense engine-building enterprise based in the capital of Bashkiria, Ufa.

The walk-behind tractors included in the conversion program of engine manufacturers did not differ in design or wide range of functions, but they worked the land properly, were maintainable, and did not require special skills in operation and maintenance.

The UMZ 5V engine withstood heat and heavy loads; spare parts and consumables were not in short supply.

In 1998, the company began production of the heavy Agros walk-behind tractor, a more powerful and productive product with an expanded set of functions and a set of attachments for it. Production of Urals was discontinued.

Motoblock Agros

Technical specifications

Indicator parameter	Unit change	Motoblocks of PJSC "Ufa Engine Production Association"
Indicator parameter	Unit change	Ural	Agros
Dimensions by dimensions	mm	1500x80x1000	1800x850x1100
Ready to use machine weight	kg	127	160
Clearance	mm	280	250
Track	-/-	100 — 600	600
Turn radius	m	1	1,2
Traction force	kgf	75	100
Engine	single-cylinder design, four power strokes, air cooling
Type and power of the power plant	l. With.	UMZ 5V 5	UMZ-341 8
Gear unit	gear type with differential device and power take-off shaft
Number of operating modes	4	4
Refueling	l	A-80, 6	A-80, A-92, 6
Fuel consumption	l/hour	2	2

User manual

When preparing the walk-behind tractor for work:
Switch the gearbox and power take-off shaft to neutral position;
Check the amount of oil in the engine and transmission using the dipstick;
Fill the tank with fuel;
Start the engine with the kick starter.
Start of movement:
use the clutch lever to disengage the clutch and engage the gear;
increase the speed by releasing the clutch release lever;
the product starts moving.

Abrupt release of the clutch drive, heavy loads on the gearbox lever, changing gearbox modes at high engine speeds are the main causes of breakdowns in the transmission of a walk-behind tractor.

Stopping the walk-behind tractor:
use the lever to disengage the clutch;
move the gearbox to neutral.
Stopping the engine:

You can find the operating instructions and maintenance manual for the Ural walk-behind tractor on Internet file hosting services.

Homemade walk-behind tractor from a Ural chainsaw

The power plant for the walk-behind tractor project is a saw with a URAL BP-52-3.8 petrol engine with an engine power of 3.8 liters. With.
The product is intended for plowing and loosening the soil, cultivating crops, and digging potatoes. The area of the land plot is 20 acres.
The saw is fixed to the frame of the device using clamps and can be removed in half an hour - ready for use for working with wood.
The frame is made of welded steel pipes ⌀ 24 mm.
The transmission of torque to the wheel shaft is chain - in two stages. In the first stage, the sprocket is left from the saw. The chain with a pitch of 12.7 mm and the driven sprocket are selected from old bicycle equipment. The second stage is equipped with motorcycle sprockets and a chain with the same pitch - 12.7 mm.
The drive wheel shaft is made of round steel profile and is mounted in the frame fork on bearings. The diameters of the mounting pads for bearings, wheel rims, and sprockets are selected according to the dimensions of the parts selected for assembly. The wheel rims and sprockets are secured to the shaft with keys.

The installation of drive chain protection covers will ensure your safety.

Walk-behind tractor from Ural chainsaw

Ignition for walk-behind tractor

The walk-behind tractor engine ignition system ensures timely ignition of the fuel-air mixture in the cylinder. At maximum compression, a spark is formed at the spark plug, which ignites the mixture.

For a walk-behind tractor engine, the device that produces the spark is a magneto. A magnet of constant polarity rotates in a coil, creating an emf for the spark pulse. The energy storage device is a high-voltage coil or a capacitive capacitor.

Contact ignition of a walk-behind tractor

In contact systems, a pulse is formed when the contacts of the distributor break, which ensures sparking at the spark plug at the moment the mixture is compressed.

The disadvantage of such a system is the mechanical wear of constantly moving parts and contacts, which affects the stability and quality of the motor. The problem can be solved by timely adjustment and tuning of the ignition.

In non-contact devices, pulses are created by electronic switches based on a signal from a special sensor that records the piston reaching top dead center in the cylinder. There is no dependence of the quality of the spark on the state of the contact groups.

How to independently adjust the ignition of a walk-behind tractor engine?

The engine starts with difficulty, does not gain power, and the noise from its operation has increased - one of the reasons may be early or late installation of the ignition.

Sequence of actions when working with the contact system:

Having opened the crankcase, set the maximum gap on the contact group by completely turning the engine crankshaft one revolution.
We set the piston to dead center. Its position is regulated by the engine instructions. There is a special mark.
We loosen the stator fastening elements and achieve closure of the contact group.
The adjustment after assembling the parts is completed.

In a non-contact system, when adjusting, the crankcase and ignition marks are combined, for this:

We open the crankcase.
At the piston dead center position, make a clearly visible mark on the rotor and crankcase.
When rotating the crankshaft, as soon as a spark appears, put a mark on the crankcase
The difference between the marks on the crankcase corresponds to the ignition timing.
We loosen the stator fasteners and set the angle in accordance with the instructions for the engine.
Ignition setup is complete.

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Classes

According to their traction characteristics, walk-behind tractors are divided into classes.

The light class includes devices with engines less than 5 hp. With. - they are used to cultivate areas of less than 0.02 hectares.
Medium walk-behind tractors with engines less than 9 liters. With. - used on plots of up to one hectare.
Heavy, with a capacity of up to 18 liters. With. — cultivate the soil on plots of up to four hectares.

In conclusion, we can say that today’s market offers different engines for walk-behind tractors, both Russian and imported, and in many cases they are interchangeable.

How to install the Lifan 168f-2 engine on the Ural walk-behind tractor, watch the video.

Motoblock UMB-K "URAL" Engine UMZ-5B Need help?

Hello. Has anyone lost their speed while driving, plowing, or cultivating?

I asked you on another page, WHAT GEARBOX, post a photo

Pavel-M If you give it to a specialist for boring, he will take measurements on the piston himself. But keep in mind that the piston must be 76 gasoline, or grind the piston head down by 2-3 mm, I don’t remember exactly, measure as before. I made repairs 2 years ago, the babbitt leaked due to improper use (oil starvation due to tilting the walk-behind tractor forward), the consequences were that the piston was damaged. I found 93 gasoline, standard, and ground off the head. The gap was large, but I didn’t bother boring the cylinder, the problem was finding the piston, or rather there was no time. I installed new rings and reassembled. I plowed it for two seasons without any problems. Engine power with an eye gap, the soil is loam, I process it in 2 passes (1-3) gears, so as not to force the engine.

Good evening everyone! I'm asking for advice: in the Ural model the engine is leaking and not weakly, there is a desire to change the rings and piston, there are problems with spare parts, tell me what they are suitable for (I heard that from a Muscovite) and where I can learn more about assembling and disassembling the engine, how to properly regulate valves, etc. thanks in advance everyone!

Valerich37 wrote: where can you learn more about engine assembly and disassembly, how to properly adjust valves, etc.

A move like this » >

Specifications

According to the operating instructions for the Ural walk-behind tractor, the product consists of a frame made of steel profile. The frame is equipped with a power unit, a clutch mechanism and an additional 2-speed gearbox. The power unit is installed through rubber shock absorbers that reduce vibration on the controls.

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For movement, 2 wheels are used. The walk-behind tractor uses solid rubber tires with a diameter of 430 mm and a width of 110 mm. Fixed track width - 540 mm. The walk-behind tractor is controlled by handles attached to the frame. The handles are used to turn, change engine speed and change gears. The steering can be adjusted depending on the height of the operator. A bar with holes is used for adjustment.

length - 1880 mm;
width - 690 mm;
height - 1280 mm.

On the front of the frame there is a pin used for installing attachments. The pin is housed in a steel housing bolted to the cross member. There are 2 holes in the body of the pin through which attachments are secured. On the rear cross member there is a bracket designed for installing towed equipment.

The engine installed on the walk-behind tractor requires regular maintenance with partial or complete disassembly. After 250 hours of operation, the valves need to be ground in and adjusted. There are marks on the gears to set the valve timing. Adjustment of the gap between the pushers and valves is carried out using a special screw located at the end of the pusher.

The manufacturer allows a variation in the length and height of products within 50 mm, and in width - within 20 mm. The weight of the equipped device is 120 kg, the weight of the towed trailer is 350 kg. The maximum speed is 11.5 km/h. For the fastest possible movement, a combination of the highest gear in the engine and higher speed in the additional gearbox is used.

Technical characteristics of the Ural walk-behind tractor

The concept of the walk-behind tractor itself was developed relatively long ago. Despite this, it still remains relevant, the reason for this is its outstanding technical characteristics. Particularly important is the ability to carry out repairs “on the fly”, right on site.

Most of the breakdowns typical of a walk-behind tractor can be repaired using pliers and a screwdriver. More complex repairs will also not cause much difficulty for an ordinary summer resident.

Mass and dimensional characteristics

Dimensions and weight are one of the most important parameters for such equipment. Since work with its help is carried out seasonally. Accordingly, it requires periodic storage.

Dimensional characteristics:

length - 1.56 m;
width - 0.79 m;
ground clearance - 0.28 m.

The weight of the walk-behind tractor is 120 kg. It is thanks to these parameters that the walk-behind tractor is very easy to transport and store. It will easily fit in the far corner of the garage or a small utility room in the country. It is possible to use attachments.

Engine of the Ural walk-behind tractor

The Ural walk-behind tractor is equipped with a UMZ-5V . It was designed more than 25 years ago, but due to its performance characteristics it is still relevant. The carburetor engine is easy to repair and adjust independently. This engine is a four-stroke, single-cylinder. This is what determines the low fuel consumption of this engine.

Main performance characteristics of UMZ-5V:

combustion chamber volume - 0.45 l;
rated power - 5 hp;
cylinder, diameter - 82 mm;
shaft rotation speed - 2,350 min-1;
The compression ratio during operation is 6.

Another important feature of this walk-behind tractor is its undemanding quality of gasoline, which makes a carburetor engine of this type compare favorably with its famous foreign analogues. Can operate on fuel with different octane ratings. AI-80 and AI-92 can be filled into the tank.

The ZID-4.5 engine was installed in separate batches of walk-behind tractors . Its performance characteristics do not differ from the parameters of the UMZ-5V and its modifications.

Transmission

The transmission has only 3 speeds - one for forward movement, the second for reverse movement and neutral. This type of transmission is used with UMZ-5B and UMZ-5V engines. At the same time, the UMZ-5A type engine is equipped with only one speed.

The transmission of torque to the working part of the walk-behind tractor is carried out by a special V-belt transmission. At the same time, the latest UMZ-5V models can be equipped with four gears simultaneously.

The design is equipped with a special transmission, thanks to which the engine power is transmitted through a special differential. In some modifications of the walk-behind tractor, special types of transmission are installed, which ensure the operation of more powerful motors. Due to this, the efficiency of the equipment is significantly increased.

In fact, the walk-behind tractor belongs to the domestic automotive industry. Its transmission does not require regular maintenance - like many of its other components.

There are cases where no maintenance was carried out on a particular walk-behind tractor for more than 10 years. At the same time, the equipment continued to successfully perform all the tasks assigned to it.

Fuel consumption and carburetor

Motoblock engines of this type are equipped with a UMZ-5V . It is not demanding on operating conditions. It can be used even in sub-zero temperatures. That is why the Ural walk-behind tractor is often used in winter - for transporting snow and solving other problems. At the same time, this carburetor, when properly configured, saves fuel. This is another reason for its popularity in our country.

If there is increased fuel consumption, it is necessary to adjust the engine speed using the carburetor.

This procedure is performed in the following order:

the idle screw is screwed in completely, after which it should be turned out 2.5 turns;
the throttle valve is closed all the way, after which it is set using a special screw to a position in which the engine runs stably;
using the idle screw, the engine operating mode is selected in which its operation will be stable, but at the same time the damper will remain in one place;
The screw that limits the opening of the throttle valve should be set to the lowest closing position - it is important that the engine operates sufficiently stable.

If, after performing all the above operations, the engine speed does not increase, this means that the carburetor is set to low speed. Due to this, it is possible to significantly reduce fuel consumption. The process is described in as much detail as possible in the manual that comes directly with the walk-behind tractor itself. Finding it on the Internet is not difficult.

Ural with UMZ-5V engine

The engine of the Ural UMZ-5V walk-behind tractor is a 4-stroke, 1-cylinder gasoline unit with a volume of 475 cm³. The motor was originally created for use on self-propelled agricultural machinery and stationary installations. The power unit develops a power of 4.5 liters. With. at 2000 rpm. The plant allows a short-term increase in power up to 5 hp. With. by increasing the speed.

Long-term operation at high power is not allowed, as it leads to overheating.

The engine is equipped with an air cooling system. To cool the engine, a fan is used that forces air into a casing located around the cylinder and head. When operating a walk-behind tractor, it is necessary to regularly inspect and clean the cooling fins from dust and oil. Accumulated dust impairs heat transfer and causes local overheating, which leads to increased engine wear.

The motor is equipped with an automatic speed controller. For this, a centrifugal mechanism is used, which does not allow a rotation speed of more than 2350 rpm. When the speed is exceeded, the throttle valve shifts, which leads to a drop in rotation speed. The engine manufacturer prohibits self-adjustment of the rev limiter, as well as its use to control the speed.

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The gas distribution system consists of 2 lower valves. Because of this, the engine has a low compression ratio of 6 units. The engine uses automobile gasoline A-76 (A-80) as fuel. The fuel supply is located in a tank located above the engine carburetor; the liquid is supplied by gravity. The fuel reserve in the tank is 6 liters, which provides an operating time of up to 4-4.5 hours. Operating time depends on the condition of the engine and the nature of the tasks performed.

The engine of the Ural walk-behind tractor is equipped with a 2-speed gearbox with reduction gears. The first speed reduces the rotation speed by 6 times and is used to perform work with a high coefficient of resistance (for example, plowing virgin soil). The second speed reduces the speed by 2.91 times and is used for operating the product with a trailer or when plowing soft soil. Switching the speeds of the UMB-K Ural walk-behind tractor according to the instructions is carried out with the engine not running.

The engine is started with a cord that is wound around the flywheel. Before starting, it is necessary to set the crankshaft to the compression end position. Starting the engine is permitted in 1st or 2nd gear of the motor gearbox.

The engine output shaft is equipped with a 2-ribbed pulley designed to transmit torque to an additional gearbox and to drive attachments. On the fan side there is a second pulley used to drive attachments that require increased rotation speed of the working parts. The clutch mechanism consists of belts and tension rollers.

According to the repair instructions, the transmission crankcase of a walk-behind tractor with a UMZ-5V engine is filled with 1.5 liters of transmission oil. The substance is poured through a hole closed with a plastic stopper.

The standard set of attachments for the walk-behind tractor included a cultivator. To transport cargo weighing up to 350 kg, a 2-wheel TOP-350/350M trolley was used. When using a single-body plow, the installation of an adapter device is required, which is attached to the frame. The plow can be used in conjunction with metal wheels equipped with lugs. A mounted potato digger is used in conjunction with a plow.

Do-it-yourself repair of the Ural UMZ 5v walk-behind tractor

Details: do-it-yourself Ural walk-behind tractor repair from a real master for the site promotobloki.ru.

In this topic, we will analyze the malfunctions of walk-behind tractors and cultivators of all brands. Neva, Zubr, etc., and their elimination and repair. Most problems are typical for all types of walk-behind tractors, their engines and other components.

It often happens that a previously serviceable walk-behind tractor, which has served for several years, suddenly loses power.

– If power drops after long-term storage, the walk-behind tractor may have been stored with a wet carburetor and fuel system, which led to deposits. In this case, you can start the engine and let it run, often after these actions the power is restored. If you have the skills, you can disassemble and clean it; if you don’t have the skills, it’s better to contact the service.

– The carburetor may be clogged. Clean

– The fuel hose is clogged. Need to blow it out.

– Possible loss of functionality of the crankcase cuff. Remove the casing and gearbox cover and inspect the cuff.

– Carbon deposits on the cylinder, muffler. Clean.

– The air filter is clogged. Clean.

– No compression. Change piston rings, cylinder, piston.

– If the engine is tilted, it must be placed horizontally.

– Fuel may not be supplied to the carburetor. The fuel system needs to be disassembled and purged with air.

– The filter may be clogged. The filter needs to be replaced or cleaned.

– The outlet hole in the gas tank cap may be clogged. Needs cleaning.

“Perhaps it’s the candle.” You need to check the connection of the wires, the engine stop buttons, remove the spark plug and clean it. Replace if necessary.

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– Possible magneto failure. Replace.

– The engine may not warm up yet. Need to warm up

– The spark plug may be dirty. You need to clean the spark plug by removing carbon deposits.

– The end of the wire does not fit tightly to the spark plug. Press the end of the wire tightly against the spark plug.

– The gearbox cover gap may be too large. Make a gap of 0.2-0.5

White smoke pours out of the walk-behind tractor and it starts to work in a frenzy.

– Poor quality gasoline may have been poured in, or this may be due to the strong tilt of the walk-behind tractor. The oil runs out of the crankcase at an angle and onto the valve until it burns out, smoke pouring out like from a stove. Also read the material “Repairing a walk-behind tractor engine”

– It may squeal if there is a lot of grease on the balls. You need to clean the balls and the places in the ratchet where they are inserted.

The cultivator made several pops, the speed began to “float”

– Most likely, the power system is not coping, or the fuel level in the tank is low, the float axis may be skewed and debris may have gotten under the needle valve, you need to remove everything and check the air filter and jets.

The material will be updated, we are waiting for comments with questions, stories about identifying a particular malfunction and ways to eliminate it. Also, see the answers to questions about a particular walk-behind tractor model on its description page.

Like any equipment, the walk-behind tractor requires timely maintenance and repair. And it is advisable to entrust their implementation to specialists who have the necessary tools and equipment and know their job well. However, if you are also familiar with the structure of internal combustion engines and understand the topic of mechanical engineering, then you can do a lot of what may be required to restore the machine’s performance on your own.

Diesel and gasoline engines have different motor resources. For the former, the normal figure is 4000 m/h, but the latter are capable of providing only 1500 m/h. Despite this, diesel models of walk-behind tractors are not in high demand. After all, both when purchased and during operation they are much more expensive. Therefore, most likely, you are working with a walk-behind tractor equipped with a gasoline (carburetor) engine.

All breakdowns that may occur during the operation of agricultural mini-equipment can be divided into two categories:

Engine faults:

startup problems;
malfunctions.

Malfunctions of other components and mechanisms:

improper clutch operation;
breakdowns in the gearbox;
problems with the chassis;
control and automation malfunctions;
malfunctions of walk-behind tractor systems (cooling, lubrication, etc.).

In many ways, the success of repairing a suddenly broken machine depends on the correctness of the diagnosis. As for maintenance, it is carried out precisely in order to identify small faults that will later lead to serious ones.

If you do not have the necessary knowledge, premises, tools and materials necessary to service and repair the motor, entrust the work to a specialist!

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.

If, when checking the spark plugs, they turn out to be wet, i.e. fuel flows normally, but the engine does not start, the problem may be the following:

Ignition system failure:

Air leaks through carburetor seals, spark plugs, plug and cylinder heads, as well as carburetor and engine cylinder connections.

If depressurization of connections is detected, it is necessary to tighten the mounting bolts, tighten the spark plugs and check the integrity of the gaskets between the spark plug heads and the cylinders.

Incomplete closing of the carburetor air damper.

To eliminate this problem, it is necessary to ensure free movement of the damper by monitoring the quality of the drive. If jams are detected, they must be eliminated.

Compression failure and carburetor problems

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

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

carbon deposits on the working surfaces of valves, as well as cylinder block seats;
intake valve deformation;
wear of piston rings.

In order to restore compression, you must:

Check the technical condition of the engine gas distribution mechanism, clean the parts contaminated with carbon deposits, and if there are defects, replace them.
Check the condition of the piston rings and replace faulty components.

If during engine operation black smoke comes out of the muffler, and excess oil is detected on the electrodes of the spark plugs or they themselves are covered with soot, this means that:

a supersaturated fuel mixture is supplied to the carburetor;
the sealing of the carburetor fuel valve is broken;
the piston oil ring is worn out;
The air filter is clogged.

To resolve this issue you should:

adjust the carburetor;
replace a leaky valve;
replace worn piston rings;
Clean or replace the faulty air filter.

If, when the engine is running, light smoke comes out of the muffler, and the electrodes of the spark plugs are dry and covered with a white coating, this means that a lean fuel mixture is entering the carburetor. This problem is eliminated by adjusting the carburetor.

The units and components of motors that are installed on mini-agricultural equipment are subject to significant loads. They can also fail during operation of the unit, which will very quickly lead to serious failures.

If you detect suspicious noises, jerks and disturbances in the operation of the walk-behind tractor systems, it is very important to immediately turn off the engine and then let it cool down - only after that will it be possible to fix the problem.

If during operation the motor begins to gain speed on its own, i.e. is “peddling”, most likely this means that the fastening of the regulator and thrust levers has become loose. In this case, the user will have to readjust the motor control drive.

Sometimes, when the throttle is fully open, the engine does not accelerate when the throttle is pressed, but rather begins to lose power until it comes to a complete stop. This is a clear sign of overheating, so you need to turn off the walk-behind tractor and wait until its components have completely cooled down. After this, you should check the oil level in the crankcase, and also check the cleanliness of the finned surfaces of the blocks and cylinder heads.

Under increased loads on the engine, it may seize. There may be several reasons for this:

there is not enough oil in the crankcase;
a nadir has formed on the lower head of the connecting rod;
The connecting rod or oil sprayer has completely failed.

If the motor of a walk-behind tractor is jammed, you will have to disassemble it and check the condition of the main components and components: faulty, deformed, melted, etc. subject to replacement.

What to do if the walk-behind tractor engine operates intermittently and does not develop the required power? There may be several reasons for this behavior:

Air does not enter the carburetor, which means the fuel does not burn well - the filter will have to be cleaned or replaced.

Residues of fuel, as well as the products of its combustion, form a thick coating on the internal walls of the muffler, which must be removed.

In this case, the assembly will have to be removed, disassembled and all its components properly cleaned. After this, the carburetor must be assembled and adjusted correctly.

Wear of the cylinder-piston group.

Temperature and high loads take their toll, and even the strongest metal wears out and deforms over time. Such parts should be replaced immediately, otherwise you may pay for it with irreparable damage to the engine itself.

Broken ratchet housing or ratchet

The presence of this problem is indicated by the absence of crankshaft movement when starting the engine. To replace the clutch housing and ratchet, you will have to completely disassemble the starting unit.

Loosening the screws securing the starter housing to the engine housing.

If the starter cord does not return to its original position, the starter needs to be adjusted. To do this, the screws are loosened, and the position of the knot is set by hand so as to ensure normal return of the cord.

A fairly common reason for the starter cord not returning is the failure of the starter spring - it will have to be replaced.

Competent maintenance of its main units and components significantly increases the service life of any equipment. Efficiency of replacement of worn-out spare parts is also of great importance. Therefore, if the slightest failures or malfunctions occur, they should be addressed immediately - in the end, this will prevent much more serious and expensive problems.

The Ural walk-behind tractor was produced from 1990 to 1998 by the defense enterprise TsMPO, located in Bashkiria. Production ceased due to the development of the modernized Agros model. Products under the Ural brand were among the popular brands - over 8 years of production, more than 100 thousand copies were produced.

length - 1880 mm;
width - 690 mm;
height - 1280 mm.

Long-term operation at high power is not allowed, as it leads to overheating.

Small batches of walk-behind tractors were equipped with a ZiD-4.5 power unit. The design of the motor is not very different from the UMZ-5V. The crankshaft contains a pulley and a sprocket for driving the chain. The pulley is located on the flywheel side, the chain drive is located on the gearbox side. The chain drive is used to drive stationary installations. The engine is lubricated by splashing; oil is supplied by a plunger pump from a sump that holds 1.5 liters of liquid.

A belt drive is used to transmit torque from the engine to the transmission. The belt for the walk-behind tractor has a size of 1120*17*11 mm. The walk-behind tractor uses a 2-speed transmission, the design and control of which are similar to machines with a UMZ-5V engine. The gearbox has 2 speeds, reducing the rotation speed by 17 and 7 times, respectively. The gears are changed using a handle. Before starting to operate the walk-behind tractor, you need to check the level and add transmission oil to the gearbox. The nominal crankcase capacity is 1.5 liters.

The engine ignition system includes a magneto that provides a constant ignition timing. As wear occurs, the angle changes, which leads to unstable ignition operation. To adjust the ignition of the walk-behind tractor, it is necessary to control the moment when the breaker contacts begin to open and the maximum gap between them. The check is carried out with the flywheel removed by aligning the notch on the crankshaft with the notch on the base of the magneto armature.

The power system includes a K16N or ZiD-12 carburetor and a fuel tank holding 8 liters of gasoline. Adjusting the carburetor of the walk-behind tractor allows you to ensure uniform engine operation and the fuel consumption declared by the factory. The adjustment is performed with the engine warm by rotating the idle speed screw and the throttle limiter screw. This sets the minimum idle speed.

Many owners of Ural walk-behind tractors do not have enough power from the standard power unit. Instead, Chinese engines or other imported motors are often used. The Chinese engine is installed on a standard frame through additional cross members. The cross members are attached to the frame by welding or bolts. Imported power units have an increased crankshaft speed, so the use of homemade pulleys in the clutch is required.

The increased power of the power unit expands the possibilities for do-it-yourself modifications. The equipment is capable of working in winter with an installed rotary snow blower.

Based on reviews of the Ural walk-behind tractor model range, a number of advantages can be identified:

The weight of the product is 120 kg, so during operation there is no need to exert additional physical force on the control handles;
possibility of alteration and modernization;
the engine on the Ural walk-behind tractor with gearbox has a long service life;
an effective air purifier that does not require replacement of filter elements;
simplicity of design and the possibility of self-repair.

Owners note the following disadvantages:

oil leaks at the joints of engine parts and gearbox;
the need to check the oil level;
increased fuel and engine oil consumption due to the design of the gas distribution mechanism;
The walk-behind tractor is not suitable for long trips with a trailer due to the low speed.

Ural products with ZiD or UMZ engines are valued by owners at an amount from 9 to 15 thousand rubles. Walk-behind tractors with Chinese engines are rare on sale; their cost is in the range of 14-20 thousand rubles.

The walk-behind tractor is used for plowing a personal plot. There were problems with the ignition during operation. After installing a contact ignition coil for a VAZ car, the situation improved. Instead of a magneto, a battery from a computer uninterruptible power supply unit is used. The ignition operates steadily throughout the entire speed range. The engine is stopped by turning off the battery power.

Dmitry, Kaluga region

The walk-behind tractor was purchased along with a house and land in the village. Maintenance requirements are low, the engine started after replacing the spark plug, wire and adjusting the ignition gaps. During operation, you have to compensate for the slight tilt to the side caused by the heavy flywheel. A92 gasoline is used for operation, since A80 fuel is not produced.

The Ural walk-behind tractor with the UMZ-5V engine has been serving faithfully for many years for some of our readers. The equipment has proven itself well, and even after purchasing it second-hand, it helps in personal farming for a long time.

The manufacturer of URAL walk-behind tractors with the UMZ-5V engine is OJSC Ufa Engine-Building Production Association. For 25 years, the association produced small-scale mechanization equipment - walk-behind tractors. During this time, UMPO assembled 160 thousand walk-behind tractors.

The official website of the manufacturer of the Agro walk-behind tractor is www.umpo.ru

The multifunctional walk-behind tractor UMB-K Ural is designed for performing various works on personal plots, in gardens and vegetable gardens for individual and collective use.

Using a walk-behind tractor complete with mounted implements, you can cultivate and plow the soil, hill up and dig up root crops, mow grass, transport cargo, etc.

The walk-behind tractor, complete with the included rotary cultivators, can cultivate any type of soil, including heavy, clay and rocky soils.

The UMZ 5V engine withstood heat and heavy loads; spare parts and consumables for it were not in short supply.

Members
450 messages

Post edited by Anton1980: 11 October 2022 – 20:45

Members
450 messages

Post edited by petr1: 11 October 2022 – 21:14

There is a video on YouTube for those interested. I just recently found it:

In the 90s of the last century, owners of subsidiary plots, farmers, gardeners and summer residents working on the land had the opportunity to purchase means of small-scale labor mechanization.

One of these new products was the Ural walk-behind tractor. At a speed of 15 km/h, he towed a half-ton trailer, plowed the land, and cultivated vegetable gardens on 1 hectare of area.

Few people guessed behind the name a defense engine-building enterprise based in the capital of Bashkiria, Ufa.

The UMZ 5V engine withstood heat and heavy loads; spare parts and consumables were not in short supply.

When preparing the walk-behind tractor for work:
Switch the gearbox and power take-off shaft to neutral position;
Check the amount of oil in the engine and transmission using the dipstick;
Fill the tank with fuel;
Start the engine with the kick starter.
Start of movement:
use the clutch lever to disengage the clutch and engage the gear;
increase the speed by releasing the clutch release lever;
the product starts moving.

Abrupt release of the clutch drive, heavy loads on the gearbox lever, changing gearbox modes at high engine speeds are the main causes of breakdowns in the transmission of a walk-behind tractor.

Stopping the walk-behind tractor:
use the lever to disengage the clutch;
move the gearbox to neutral.
Stopping the engine:

You can find the operating instructions and maintenance manual for the Ural walk-behind tractor on Internet file hosting services.

The power plant for the walk-behind tractor project is a saw with a URAL BP-52-3.8 petrol engine with an engine power of 3.8 liters. With.
The product is intended for plowing and loosening the soil, cultivating crops, and digging potatoes. The area of the land plot is 20 acres.
The saw is fixed to the frame of the device using clamps and can be removed in half an hour - ready for use for working with wood.
The frame is made of welded steel pipes ⌀ 24 mm.
The transmission of torque to the wheel shaft is chain - in two stages. In the first stage, the sprocket is left from the saw. The chain with a pitch of 12.7 mm and the driven sprocket are selected from old bicycle equipment. The second stage is equipped with motorcycle sprockets and a chain with the same pitch - 12.7 mm.
The drive wheel shaft is made of round steel profile and is mounted in the frame fork on bearings. The diameters of the mounting pads for bearings, wheel rims, and sprockets are selected according to the dimensions of the parts selected for assembly. The wheel rims and sprockets are secured to the shaft with keys.

The installation of drive chain protection covers will ensure your safety.

Walk-behind tractor from Ural chainsaw

The walk-behind tractor engine ignition system ensures timely ignition of the fuel-air mixture in the cylinder. At maximum compression, a spark is formed at the spark plug, which ignites the mixture.

Contact ignition of a walk-behind tractor

In contact systems, a pulse is formed when the contacts of the distributor break, which ensures sparking at the spark plug at the moment the mixture is compressed.

The engine starts with difficulty, does not gain power, and the noise from its operation has increased - one of the reasons may be early or late installation of the ignition.

Sequence of actions when working with the contact system:

Having opened the crankcase, set the maximum gap on the contact group by completely turning the engine crankshaft one revolution.
We set the piston to dead center. Its position is regulated by the engine instructions. There is a special mark.
We loosen the stator fastening elements and achieve closure of the contact group.
The adjustment after assembling the parts is completed.

In a non-contact system, when adjusting, the crankcase and ignition marks are combined, for this:

We open the crankcase.
At the piston dead center position, make a clearly visible mark on the rotor and crankcase.
When rotating the crankshaft, as soon as a spark appears, put a mark on the crankcase
The difference between the marks on the crankcase corresponds to the ignition timing.
We loosen the stator fasteners and set the angle in accordance with the instructions for the engine.
Ignition setup is complete.

Ural walk-behind tractors can easily be called “mastodons” among small-scale mechanization equipment. Back in the 90s, these devices made life much easier for agronomists, eliminating the need to do hard work manually.

As statistics show, in just the first years of their appearance on the market, Ural motor cultivators sold an incredible 130 thousand copies. Despite the fact that many of the brand’s models are considered obsolete today, the equipment still reflects the power of that time and consists of reliable spare parts that are still actively used and allow the units to perform their task with 100% quality.

Demand for the models is maintained due to their impressive characteristics, because many options are equipped with powerful gasoline engines that allow them to reach speeds of up to 15 km per hour and transport cargo weighing up to 500 kg. Thanks to the reliability of the device, owners can easily process 1-2 hectares at a time.

Despite the advanced age of the units, some models are still actively used, we are talking about UMZ-5V and UMZ-5B. They were created at the Ufa Engine Production Association OJSC. In 1998, the company switched to the development and production of more powerful walk-behind tractors - Agrosov, thereby stopping the production of Urals.

At one time, the machine was excellent for working on heavy and clayey soil. She coped with her direct responsibilities even in the incredible heat. Moreover, repairing the model was very quick and easy, and spare parts were available in any quantity.

The Ural walk-behind tractor with the UMZ-5V engine was single-axle and was complemented by an oil tank with a capacity of 1.5 liters. The wide track was adjustable, so it could be easily adjusted according to the characteristics of the soil and the work process itself.

The unit did not differ in versatility and was used in most cases specifically for soil cultivation. It did not come with any attachments, so it was not suitable for cutting grass, removing snow or removing debris. At that time, it was recommended to use the UMZ-5V in the summer.

Negative aspects include the size and excessive weight of the structure, not much versatility and the impossibility of transportation over long distances. Also, during operation, the machine made a lot of noise, which provoked headaches and hearing impairment. Naturally, when wearing protective headphones, the negative impact was significantly reduced.

Weight – 120 kg;
Fuel tank capacity: 6 l;
Type of cooling – air;
Cylinder diameter – 82 mm;
Rated motor power – 5 liters. With.

Due to the weight characteristics, women are not able to work with such a “monster”, so only men became operators of the Ural UMZ-5V walk-behind tractor. For a more detailed acquaintance with the features of the development, you can familiarize yourself with the operating instructions and the presented videos.

The model is equipped with a four-stroke single-cylinder engine. It is cooled by force using air flow. The working volume of the cylinder is 520 cm3. The motor power (4.5 hp) made it possible to perform many useful tasks, and the weight of the device was so great that the need to use a weighting agent completely disappeared.

According to reviews from owners, at maximum load fuel consumption reached 1.5 liters. Often the launch took place using a starting handle or a special cord.

Specifications:

Piston stroke – 90 mm;
Lubrication system - splashing;
Oil sump capacity – 1.5 l;
The oil temperature does not rise above 30°.

The unit is known for its resistance to various mechanical factors and the possibility of prompt repair. The operating instructions and special photos showing the specific design of the engine and regulator will help you understand all the intricacies of this process.

Often Ural walk-behind tractors were sold with Chinese engines, but such modifications significantly increased the cost of the device, so ordinary people gave preference to domestic components (with a ZID engine), realizing that in case of problems, repair work would not be difficult.

These units, like any other equipment, even with proper care, can periodically fail. Therefore, you should not panic, but use the information provided in the operating instructions that come with the walk-behind tractor itself.

Since the Ural walk-behind tractor is a fairly simple and understandable device, it will not be difficult for a person even without much experience in this matter to carry out all the necessary work.

What to do if gasoline does not flow into the carburetor? Often the cause of the malfunction lies in a clogged faucet of the sump filter. To get rid of it, it is advisable to clean the specified part;
What to do if there is very little compression in the cylinder? It is necessary to rid the fungus of excess carbon and rub it into the cylinder body;
What to do if the engine smokes a lot? It is advisable to open the air damper completely;
What should you do if you hear knocking noises in the combustion chamber? It is worth replacing gasoline with a higher quality one, ridding the chamber of carbon deposits and unloading the engine as much as possible;
What to do if gases break through between the cylinder head and body? You need to buy and install a new gasket, because the old one is completely bent;
What to do if the spark plug electrodes are almost burnt out? Replace them with new ones.

Naturally, these problems are not the only ones that can arise during the operation of Ural walk-behind tractors, but they are the most common. The diagrams below will help you understand the specifics of the design and perform all the necessary procedures correctly.

The Ural walk-behind tractor is clear proof that old does not mean poor quality or unusable. Classic walk-behind tractors are the first, but at the same time, they still perform their basic work efficiently and are distinguished by reliable material that can withstand various negative factors for more than 20 decades.

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Ural with ZiD engine

Ural with a Chinese engine

The increased power of the power unit expands the possibilities for do-it-yourself modifications. The equipment is capable of working in winter with an installed rotary snow blower.

Advantages and disadvantages

Based on reviews of the Ural walk-behind tractor model range, a number of advantages can be identified:

The weight of the product is 120 kg, so during operation there is no need to exert additional physical force on the control handles;
possibility of alteration and modernization;
the engine on the Ural walk-behind tractor with gearbox has a long service life;
an effective air purifier that does not require replacement of filter elements;
simplicity of design and the possibility of self-repair.

Owners note the following disadvantages:

oil leaks at the joints of engine parts and gearbox;
the need to check the oil level;
increased fuel and engine oil consumption due to the design of the gas distribution mechanism;
The walk-behind tractor is not suitable for long trips with a trailer due to the low speed.

Main features of operating a walk-behind tractor, reviews from owners

Despite its relatively light weight, the walk-behind tractor still requires sufficient physical strength to plow the land. But, at the same time, it is excellent for cultivating complex soils and even virgin soils. Since it is precisely due to the distribution of the mass of 120 kg that there is no need to “press” the Ural walk-behind tractor using its own weight into the ground. This is the case with lighter models like “Oka” and some foreign analogues.

The walk-behind tractor itself was designed during the existence of the Soviet Union. Which makes itself felt by constant, regular oil drips from the most unexpected places. In most cases, such troubles are not critical and do not affect the operation of the walk-behind tractor in any way. At the same time, you need to carefully monitor the lubricant level. If necessary, such drips can be easily eliminated by replacing gaskets, as well as high-quality adhesive-sealant.

However, serious breakdowns requiring major repairs or replacement of entire components occur relatively rarely. That is why this technique does not lose its relevance today. Especially in rural conditions, when it is simply impossible to purchase the necessary parts without a long trip.

Most often, problems arise with the following parts of the walk-behind tractor design:

gear plug;
candles;
armored wire.

In turn, on its “native” engine, a walk-behind tractor can operate without serious breakdowns for about 20-30 years. That is why buying a walk-behind tractor remains relevant even used. It is only important to pay attention to some details that may cause problems in the future. The equipment itself is also designed for transportation and is multifunctional.

But it is not intended for long trips. With prolonged load in the “road” mode, there will be an increase in fuel and oil consumption. Also, when driving for a long time, the motor becomes quite noisy, and an unpleasant “iron” rattling often occurs. Therefore, it is advisable to use the Ural walk-behind tractor only for plowing the soil. Since this is its main purpose.

The power plant is distinguished by its power. Many owners make a choice in favor of this walk-behind tractor, rather than imported analogues, only because of the domestically produced engine. It easily withstands any harsh conditions of use. This is heat, cold, a lot of dust in the air. It is especially worth noting the air filtration systems. Among the negative aspects of using the Ural walk-behind tractor, it is worth highlighting only its high noise level.

This walk-behind tractor is inferior only in its functionality. Using it for transporting goods, as well as other tasks, is quite problematic. That is why it is necessary to deal with snow removal and other things - it is advisable to look in the direction of imported models. It is only important to know about the difficulty of acquiring spare parts for them.

Owner reviews and prices

Dmitry, Kaluga region

Review of Ural walk-behind tractors

The first Ural walk-behind tractors were produced in the early 90s, and continue to be produced to this day. Over the entire period of its long history, this technique has found application throughout the CIS countries, regardless of the type of soil and climate zone.

The popularity of Ural walk-behind tractors is determined by the ease of repair work, long service life and simplicity of design.

Due to the popularity of this model, the manufacturer has released several modifications of Ural walk-behind tractors, which differ in the installed engines.

The most popular are those devices that are equipped with domestic motors. The main reason for this choice is the availability of spare parts and their low cost.

Engine for walk-behind tractor Ural UMZ-5A, UMZ-6A, UMZ-5B

The UMZ-5B engine and its modification UMZ-5DU-B are a four-stroke, single-cylinder, air-cooled internal combustion gasoline engine and are intended for installation on self-propelled agricultural machines, and can also be used on stationary installations for the mechanization of various agricultural works.

The engine has a two-stage gearbox with gear ratios of 1:6 and 1:2.91, changing the speed of the output shaft. The UMZ-5DU-B engine has the same parameters as the UMZ-5B engine and differs in that it is equipped with a single-stage gearbox with a gear ratio of 1:6 and a gearbox shaft without a ratchet.

The engine was installed on Ural walk-behind tractors, which many still have and still serve today. It is difficult to find operating instructions, so we created this page for those who use Ural walk-behind tractors with UMZ-5A, B, UMZ-6A engines. You can download instructions from our website:

Operating instructions for the UMZ-5A, UMZ-5DU-A engine

Operating instructions for the UMZ-5B, UMZ-5DU-B engine

Operating instructions for the UMZ-5V engine for the Ural walk-behind tractor - download - this manual was sent by visitors to our website.

Review of the model range of Ural walk-behind tractors

The base of this walk-behind tractor is called Ural UMB K, onto which various engines are simply attached.

It is made of high quality hardened iron that can withstand heavy loads. The overall dimensions of the UMB K are 1730×690×1280 mm.

Ural UMZ 5V

The most popular model of walk-behind tractors is the Ural UMZ 5V. This engine is produced directly at the plant itself.

The power of this engine is 4.5 horsepower at 2000 rpm.
The operating temperature of the engine is maintained by air cooling using a fan.
The UMZ 5V walk-behind tractor is equipped with a speed limiter, which operates in automatic mode.

A special feature of this model is its unpretentiousness to fuel; it can easily work with AI-80 gasoline. The fuel tank capacity is 6 liters, which is enough for 4-4.5 hours of battery life.

The weight of the Ural walk-behind tractor with the UMZ 5V motor is 140 kg.

Photo of this model:

Ural ZID-4.5

This engine does not have any special distinctive technical characteristics from the UMZ 5V. The only thing is that it is capable of carrying out work on AI-72 fuel, but this affects the performance characteristics of the Ural walk-behind tractor.

A large amount of carbon begins to form on the cylinders and spark plugs, and the speed stability and overall power decrease.

Ural ZID 4.5 was produced as an experimental model, which did not find widespread use.

Ural with Chinese engines

Recently, Chinese engines for small garden equipment have become increasingly popular. They are distinguished by high technical characteristics, low cost and excellent quality.

The most popular manufacturer of such devices is Lifan, which is considered an analogue of the world famous Honda. At the same time, it costs several times less. There are a large number of videos on the forums about the process of engine conversion.

Description

The description of the Ural Patriot walk-behind tractor should begin with the fact that this machine was assembled by a defense enterprise from Bashkiria called TsMPO JSC. This is one of the best examples of the transfer of military production to civilian lines.

Ural walk-behind tractors have a low price and high quality

The walk-behind tractor gained its popularity due to its ease of operation and high maintainability. This car can be repaired on the go, and there are no problems with access to spare parts.

Main features of the Urals:

cultivate areas up to a hectare;
the capabilities are not limited only to soil cultivation - it is capable of removing snow and transporting loads when using the proper attachments;
the device’s transmission is equipped with four gears;
thanks to a maximum speed of up to 15 kilometers per hour, it is well suited for transporting goods in conditions of poor or no roads;
has increased stability due to the width of the wheelbase;
It is possible to adjust the track based on operating conditions, which significantly increases the efficiency of the unit.

Attention! Models of the Ural walk-behind tractor are equipped with both domestically produced and foreign engines. The choice of one option or another depends entirely on the preferences and budget of the consumer.

In this video we will review the Ural walk-behind tractor:

Attachment overview

Ural walk-behind tractors have gained great popularity due to a wide range of compatible attachments and the ability to automate many agricultural works. Now this is no longer a luxury, but simply a necessity for many farmers.

Milling cutter

This is a basic attachment that is used by many owners of Ural walk-behind tractors. The milling cutter allows you to mix and grind the top layer of soil in order to increase productivity. This attachment is used when processing the prepared area.

A photo of a cutter with a Ural walk-behind tractor is shown below

If there is a need to plow virgin or hard lands, then it is better to use a plow for these purposes. Its immersion depth is usually up to 20 cm.

Plows have one drawback - they leave large clumps of soil after processing. Partially solving this problem is the ability of reversible plows. They have a special feather-shaped plowshare design, so during operation the soil layer is first turned over several times on it, crushed, and only then thrown aside.

Mower

Mowers are used to make hay for the winter and clear the area of grass. For Ural walk-behind tractors, there are two options for this attachment: segmental and rotary.

Rotary mowers allow you to cut grass using rotating blades that unwind and straighten. This attachment can cut medium-sized young grass.

If you need to process a heavily overgrown area, then it is better to use segment mowers. It has two rows of knives, which move towards each other in turn. Thus, segment mowers can cope with coarse vegetation and medium-sized shrubs.

Potato digger and potato planter

Potatoes are a very common crop in our region. However, the work of planting and digging it takes a lot of time and effort. In order to mechanize this work, appropriate attachments are used.

The following video review demonstrates one of the ways to plant potatoes using a Ural walk-behind tractor:

Snow blower and shovel

During the winter, many owners of Ural walk-behind tractors put them into storage because they do not see the point in using them. But this is a mistaken opinion.

With the help of a snow blower, you can effectively clear the snow cover from your local area. Ural walk-behind tractors do an excellent job even at sub-zero temperatures.

The snow blower picks up a layer of snow and, using a rotor, throws it to the side at a distance of up to 8 meters.

A simpler attachment for snow removal is a shovel blade. It simply clears the path of snow by throwing the snow next to the walk-behind tractor.

Trailer

Ural walk-behind tractors can be used to transport cargo weighing up to 350 kg. Special trailers are used for this.

The configuration of trailed equipment must be selected based on the material being transported.

If these are long pipes or logs, then it is necessary to use carts on four wheels.
If it is a bulk cargo, then it is better to use dump truck options with folding sides.
If it is hay or something bulky, then the best option would be a model with high sides.

Adapter

The main problem when operating all walk-behind tractors is the heavy physical load on the operator. He must constantly push and direct the device, which causes rapid fatigue.

To facilitate the process of operating the machine, an adapter was developed. This is a special attachment with a seat for the operator, which allows operation while sitting.

Wheels, tracks and lugs

Since the weight of the Ural walk-behind tractor is not large, problems often arise with traction and maneuverability of the machine.

Standard wheels perform well for light work; if more complex tasks are to be performed, it is better to install lugs. This is a special metal rim to which iron plates are welded in the shape of a herringbone. Thus, during operation, they enter the ground and make the Ural walk-behind tractor easier to drive.

During the winter season, you can install a special tracked module, which increases the area of contact with the surface and provides owners of the Ural walk-behind tractor with the opportunity to move through a high layer of snow.

Weights

Another way to improve traction is to add weight by installing additional ballast.

The manufacturer offers its own weights, which are made in the form of pancakes and hung on the wheel axle.

Hitch

The popularity of the Urals is due to the possibility of installing attachments from third-party manufacturers. This possibility is achieved due to the fact that these machines are equipped with a universal type hitch.

User manual

The work of every new owner should begin with familiarization with the operating instructions. This document describes the sequence of assembly, running-in, operation, maintenance and preservation of the Ural walk-behind tractor.

First start and run-in sequence

The correct start of work with the Ural walk-behind tractor is the key to its long-term use.
The device must be assembled in accordance with the recommendations of the user manual.
Then you need to add fuel, lubricant and run-in.
During break-in, it is recommended to use the walk-behind tractor at half its maximum power. After delivery from the factory, the engine parts are not yet lubricated and there is a lot of friction on them. To prevent this from causing the walk-behind tractor to fail, you should work in a gentle mode for the first 8 hours of operation.
At the end of this period of time, the oil must be changed.

Service

A distinctive feature of the design of Ural walk-behind tractors is their ease of maintenance.

Before each departure, you must check the following:

Reliability of fastening of all parts and assemblies of the walk-behind tractor; if they are loosened, they should be tightened;
Condition of electrical wiring. Starting operation with exposed wires is strictly prohibited;
The condition of the V-belt drive, it is impossible to work with delaminated belts;
Fastening of attachments;
No oil or gasoline leaks.

The engine oil should be changed every 50 hours. To do this, it is recommended to use SAE 10W-40 lubricant.

The oil in the gearbox should be changed after 120 operating hours. It is recommended to fill in Tap-15 as a fresh lubricant.

The engines of the Ural walk-behind tractor are unpretentious in terms of fuel quality. For their operation, you can use AI-80 gasoline. But it must be clean, otherwise the fuel system will become clogged.

Basic troubleshooting and repairs

Each owner of Ural walk-behind tractors should be familiar with ways to correct the main faults that arise while working on this equipment.

Adjusting valve clearance

One of the most common reasons that the Ural walk-behind tractor does not start is the untimely supply of the ignition spark. This occurs due to a violation of the valve clearance due to excessive load or wear of parts.

According to the instructions for use, the gap should be from 0.1 to 0.15 mm. This exact value can be set using a regular blade.

In order to adjust it, you must perform the following steps:

Loosen the nut with a screwdriver and place the blade under the valve;
Spin the flywheel and adjust the free play of the valve (it should turn easily, but in its lowest position fit snugly against the blade);
Secure the position by tightening the nut.

The most popular reasons for the engine not starting, as well as ways to correct them, are presented below:

Check the presence of fuel and oil (add if necessary);
The ignition spark has disappeared or the system has malfunctioned (it should be checked completely);
The engine may not start due to incorrect settings of the fuel mixture in the carburetor (it is necessary to adjust the fuel and air supply);
The fuel or air filter could be clogged, causing fuel to not flow into the carburetor (it should be cleaned).

Reviews

The best evidence of the popularity of the Patriot walk-behind tractor from the Ural brand is reviews from owners and video reviews.

Anton, Zaraysk

I bought a Ural walk-behind tractor to cultivate a plot of slightly more than half a hectare. Well what can I say? It’s immediately clear that this is a domestic technology and it doesn’t look newfangled at all. But, at the same time, it fulfills its function entirely. I have heavy soil. But the cultivator has not broken down even once in three years! I adapted it for other work, buying all sorts of canopies. In general, if you are looking for something cheap and powerful, but appearance is not the main thing for you, this is the solution for you.

Sergey, Vladimir

Such a walk-behind tractor is what a farmer from the Middle Zone needs.
Minimum of problems, sufficient power for plowing, can be repaired in one go. What else does? Yes, the model is a little outdated. But reliability and performance are more important. This is interesting: the Salyut 100 HVS walk-behind tractor.