Ural chainsaws: general characteristics and design, main faults, review of popular models

Chainsaws Ural – these are high-quality tools for sawing wood and processing it. The manufacturer created such models for felling forests, so initially they were not familiar to modern farmers. But over time, these saws have firmly entered private life and are used for collecting firewood, processing building materials and other purposes.

The design of the Ural chainsaw is simple and straightforward. Its heart is a durable carburetor and two-stroke engine. Comfortable handles make it easy to hold the tool. Light weight and small dimensions made it possible to work with the saw even at home.

Benefits of the tool

• High performance.
• Low weight, compact.
• Built-in gearbox that turns the tire 90 degrees.
• A hydraulic wedge that allows you to cut trees in the desired direction.
• Technology for automatic supply of lubrication to the chain.

Each product comes with an instruction manual. You can also use various attachments, pumps, and discs with saws.

How to properly break in a new Ural chainsaw?

This procedure is required for every new tool or repaired saw. By running in, the suitability of the product is increased and maximum engine performance can be achieved.

1. Fill the saw tanks with oil and gasoline mixture.
2. Place the chainsaw on a flat surface and start it.
3. Let it work for 10 minutes (you can cut small branches).
4. Turn off the engine, wait a while: it should cool down.
5. Repeat the procedure.

During break-in you need to use one tank of fuel mixture. After this, all structural elements will be ready for normal operation and will rub against each other.

Chainsaw Ural 2 Electron: technical characteristics

The model was designed as a productive tool for felling trees. It has the following characteristics:

• movement when felling: from right to left;
• device weight – 11.6 kg;
• productivity: 100 sq. cm per second;
• rotation speed: 200 rpm;
• noise level: 105 dBA;
• engine power: 3.68 l. With;
• fuel consumption is 632 g/kW.h.

Chainsaw Ural 2t Electron, if necessary, can be equipped with various attachments. It is also used as a basis for homemade products.

Model range overview

Gasoline saws "Ural" appeared as a result of modernization of the tool of the "Friendship" series. Improvements made it possible to reduce the weight of the saw and increase the power and efficiency of the power unit. Later, new chainsaw models appeared with increased performance and improved ergonomics. The plant produces several types of Ural saws with an electric drive; a household power supply of 220 V is used for power supply. The electric drive is equipped with a protective casing that prevents the ingress of fine wood dust.

Ural Profi UBP 6300

A professional tool equipped with a 2-stroke gasoline engine with an output of 8.57 hp. at 9500 rpm. The engine capacity is 58 cm³ and is started using a manual cable starter. To increase the service life of the power unit, a second piston ring was introduced and chrome plating was applied to the cylinder liner. The Ural saw is equipped with an anti-vibration system, the length of the bar is 450 mm. The weight of the chainsaw (with fuel and oil) is 7.6 kg, which is a disadvantage of the equipment.

Ural UBP 4500 Profi

Professional type Ural saw, equipped with a 6.12 hp motor. with a volume of 58 cm³. The air filter and ignition system components are placed in a quick access area, which speeds up maintenance of the chainsaw. The equipment is supplied with a 450 mm long bar; automatic chain lubrication is provided from a separate reservoir containing 260 ml of mineral oil. By simplifying the model, the weight of the saw was reduced to 5.4 kg, but the Ural design retained the anti-vibration system and used a sleeve with a chrome-plated wear-resistant coating.

Ural Profi UBP 3900

The equipment is distinguished by the use of a motor with a power output reduced to 5.3. power, a mixture of A-92 gasoline and special oil for 2-stroke units is used for operation. The fuel supply is stored in a tank with a capacity of 550 ml. To improve engine performance, a Japanese Walbro diaphragm carburetor was used. The saw is equipped with a reinforced piston group with chrome-plated friction surfaces, and a manual starter is used. The oil for lubricating the guide and chain is stored in a separate tank with an automatic pump for supplying fluid.

Ural 2T Electron

An early model of the Ural gasoline saw, put on the conveyor in 1955 under the designation Ural 2T. Later, electronic ignition was introduced, which led to a change in the name of the saw. The power of the 2-stroke air-cooled engine is 5 hp. The engine design includes a fan that pumps air between the fins of the cylinder and head. The working handles were located above the saw body, which made it possible to reduce fatigue during work. The product was supplied with a 450 mm long tire; serial production ended in 2008.

The device has a mechanism for rotating the cutting tool by 90°. The fuel supply (a mixture of low-octane gasoline and motor oil) is stored in a 1.6-liter tank located between the control handles. The domestic manufacturer has provided lubrication of the cutting edges of the saw system; oil is supplied from a tank with a capacity of 240 ml. Due to the use of metal parts with an increased safety margin, the weight of the Ural saw has increased; the saw filled with liquids weighs 11.4 kg.

Uralstal UBP-6300

The UBP-6300 chain saw is equipped with a modernized engine with improved technical characteristics. The engine capacity is 62 cm³, power increased to 8.6 hp. The engine speed control is carried out on a trigger switch located in the handle. The design of the saw provides an emergency brake; a double exhaust tract with an acoustic muffler is used to divert the flow of exhaust gases.

To increase the reliability of the Ural saw, a reinforced piston with 2 grooves for compression rings is used. Fuel is supplied by a diaphragm carburetor, ensuring stable mixture quality. Magnesium alloys are used in the design of the engine crankcase, which reduces the weight of the equipment while maintaining strength. The set includes a chain with hardened teeth, designed for sawing hard wood.

Ural BP 3650

Saw Ural BP 3650 "Taiga" belongs to the category of household tools, is equipped with a 2-stroke motor with a power of 4.9 hp. The set includes a 450 mm long bar, which allows you to saw branches or fell trees of medium thickness. The fuel supply is poured into a 550 ml tank, and the combustible mixture is supplied to the membrane carburetor by gravity. There is a lubrication unit for the working surface of the chain with a separate reservoir with a capacity of 260 ml, an inertial brake and mounted protection against kickback.

Ural BP 3800

The equipment is distinguished by the use of a 45 cm³ engine, which develops power up to 5.2 hp. To purify the air, a 2-stage filter is used, located in an unobstructed access area. Carburetor adjustment is simplified by using a protective casing with technological holes near the adjusting screws. The saw is equipped with a 450 mm long bar, which allows you to cut logs of medium thickness.

Ural BP 3600 Pro

The entry-level professional saw BP 3600 Pro is equipped with a 5 hp motor located transversely inside the body. The equipment is equipped with reinforced structural elements, which allows long-term operation without the risk of overheating. The power unit has an increased resource due to the use of a chrome-plated cylinder liner. The Ural BP chainsaw is equipped with a 450 mm long bar with an automatic chain tensioning and lubrication mechanism. The weight of the device filled with fuel and oil (550 and 260 ml, respectively) is 5.9 kg.

Adjusting the Ural chainsaw carburetor

If the tool does not start or does not work well, you need to clean and adjust the operation of its carburetor. You can adjust the carburetor on a Ural chainsaw with your own hands. To do this, you first need to clean the spark plug.

Setting up the Ural chainsaw carburetor at idle speed

1. Start the tool and warm it up at medium speed.
2. Find the idle speed screw and turn it to set the minimum stable speed.
3. If the engine starts to smoke, partially tighten screw 1.
4. Partially turn the idle speed screw, set the speed to minimum.
5. After this, check the quality of the saw. If the engine picks up speed quickly, the adjustment was successful. If the engine stalls or slows down, screw 1 is turned out again. Next, adjust the idle speed screw and secure its position.

Setting for maximum power

It is done after 25 hours of running in the saw and after adjusting the idle speeds.

1. Use screw 2, turning it in one direction or the other.
2. When screwing, the power increases; when unscrewing, it decreases.
3. After each adjustment step, the saw must be checked by sawing small wood.

How to adjust the carburetor

To avoid problems with operation, you must first of all adjust the carburetor correctly. Different operating modes require the use of a specific fuel mixture composition. Here “Ural” has its own nuances that need to be found in the instructions.
Your task is to find the factory settings in the data sheet of the chainsaw. So, the tool should work for several hours without changing the settings. Next, start the saw and operate it at minimum speed. Then, using a screwdriver and an adjusting screw, you need to set the required position. The engine is supposed to gradually gain speed, given that the chain on the bar remains motionless. Now the transition is made to higher speeds ; if there is smoke from the engine, you need to tighten the screw slightly. As a result, the mixture will become leaner and the smoke will go away.

It is advisable to adjust so that when the throttle is pressed sharply, the speed increases quickly, but not jerkily, but smoothly. The principle here is simple - unscrewing the screw enriches the mixture, tightening it leans it. This allows you to very accurately adjust the operation of the carburetor.

Homemade chainsaws Ural

From these universal devices you can make various homemade products. Let's consider in what areas the tool can be used and what can be made from it.

• Do-it-yourself boat motor from a Ural chainsaw. The torque of the saw motor must be transferred to the boat propeller. A durable adapter is installed between the drive gear and the propeller shaft.
• Tricycle. The task is to use the power of the motor on the wheels of the car, for which you need to install an old bicycle chain. The basis of the device is a frame to which three wheels and a steering wheel are attached.
• Homemade sawmill from a Ural chainsaw. A guide should be made along which the frame with the saw attached will move. The structure can be equipped with lifting fasteners that will fix the thickness of the lumber.
• Snowmobile made from a chainsaw Ural. You will need to make a frame with shock-absorbing suspension, steering wheel, gas and clutch. A gear is installed on the drive shaft, the size of which is slightly larger than the saw sprockets.
• Motor drill from chainsaw Ural. The saw motor is connected to the structure using a worm gearbox. You also need to connect the auger.
  Read also:  SMD resistors, capacitors, LEDs (dimensions, power, designation)
• Karting. A more complex device that requires the manufacture of a durable frame, seat, steering wheel, and wheels. They use a saw motor that will rotate the wheels and power the tool.

Chainsaw Ural Profi UBP 4500

The tool is needed for felling trees, collecting firewood and working in the garden.
It features a powerful starter, automatic chain lubrication and an inertia brake. Main characteristics:

• power at 5.1 liters. With;
• the fuel tank is 0.55 l;
• oil tank – 0.25 l;
• saw chain length: 40-45 cm;
• weight – 7.8 kg.

Malfunctions and repairs

Breakdowns can often occur when working with a saw. To fix them, you don’t have to run to a specialist. Some problems can be fixed by yourself. To do this, you first need to recognize the cause of the breakdown, and then follow the instructions. In some cases, additional spare parts will be needed.

Chainsaw Ural: no spark

In this case, one of the following problems may occur:

• the spark plug is broken, you need to try to clean it or replace it;
• There is too much oil in the fuel mixture, causing it to settle on the walls of the carburetor. You need to change the mixture and clean the carburetor.

Ural chainsaw does not start

If the chain is not lubricated, this breakdown may occur. You need to inspect the oil reservoir. Cracks or holes may have formed in it. It is better to replace it with a new tank.

Advantages and disadvantages

The positive aspects of Ural gasoline saws noted in owner reviews:

• low cost (in relation to professional equipment);
• reliability of design;
• there are no problems with purchasing spare parts and units;
• use of a 2-stroke engine with reinforced piston elements;
• vibration protection is provided;
• an imported carburetor is used to supply fuel;
• there are technological hatches in the housing for servicing components;
• the ignition system does not require adjustment during operation (except for gaps in the spark plug);
• an easy start system is used;
• An automatic plunger pump is used to lubricate the saw;
• The bar and chains are interchangeable with tools from other manufacturers.

Equipment disadvantages:

1. when the engine is running, oil and smoke are emitted (a disadvantage of all 2-stroke engines);
2. to prepare the working mixture, a larger amount of oil is required than that of imported analogues;
3. heavy weight of the tool.

Chainsaw Ural Profi UBP 3900

The universal professional model can be used when caring for garden plots or for felling trees.
It has an improved clutch system, and it is possible to block the start of the chain. An inertia brake is also provided. Specifications:

• the engine has a power of 4.08 liters. With;
• fuel tank size 0.54 l;
• lubricant tank – 0.27 l;
• tire size is 35-45 cm;
• device weight – 7.9 kg.

User manual

Many people prefer not to waste time reading the operating instructions and start working without familiarizing themselves with the device and the rules for working with it. Referring to your knowledge and many years of work experience is good, but it is best to once again confirm your practical skills with a theoretical workshop.

The Ural Pro chainsaw consists of the following elements: an engine, a clutch, the sawing apparatus itself, a gearbox, a starter and a frame equipped with comfortable handles. The main production unit of the engine is the cylinder, crankshaft with connecting rod and crankcase. Important in this structure are the cooling system, the piston, as well as the power and ignition unit.

Follow the instructions

The operating instructions cover the following aspects:

1. How does a chainsaw work?
2. Main aspects of the work;
3. Specific recommendations;
4. Fuel used;
5. Break-in process;
6. Preparing the device for operation;
7. Rules for felling trees;
8. High-quality care for this device;
9. Starting the engine;
10. Basic safety rules.

Chainsaw Ural BP 3800

The compact and small model can work with timber, cut down trees, and process branches.
It has an inertial braking system and is characterized by high performance. Comfortable to work with. Specifications:

• the model has a power of 5.03 liters. With;
• tank for fuel mixture - 0.62 l;
• oil tank – 0.25 l;
• the tire has a length of 35-45 cm;
• weight – 6.9 kg.

Today, saws from the Ural company are maximally adapted to difficult working conditions.