Chainsaws "Motor Sich" - a heroic name for serious work

It’s hard to believe, but the Ukrainian aircraft design enterprise with such a glorious name as “Motor Sich”, in addition to turbo engines for helicopters and airplanes, also produces hand tools that operate both from mains power and gasoline.
It was founded at the beginning of the 20th century. in Zaporozhye, where the main production facilities of the plant are located to this day. Understanding the importance of detail, this company has constantly been improving the most important working component - the engine, the heart of any equipment. Therefore, power and reliability, together with modern design, have become the main trump card of the Ukrainian instrument, which has long entered neighboring consumer markets.

Features of Motor Sich gas-powered saws

This product recently entered the international distribution arena, but was able to prove that what its neighbors do on the political map of the world is no worse than products brought thousands of kilometers away. They are distinguished by:

• wear-resistant motor systems with high production potential;
• versatility for any task and environmental conditions;
• high-quality components – bar and saw set;
• attractive external exposition.

Description

There are quite a few reasons why users of Motor Sich units prefer various modifications of walk-behind tractors of this brand and highly appreciate their performance qualities. We list the main ones:

1. High level of quality control in production during the assembly process and testing of units before release for sale.
2. Use of high quality modern materials.
3. High performance indicators.
4. Powerful petrol and diesel engines.
5. The widest selection of mounted and trailed devices that expand the functionality of the unit.
6. High maintainability, availability of spare parts for sale.
7. A wide selection of power plants of varying power - from 6 to 13 horsepower.
8. High reliability of mechanisms.
9. Average price category.
10. High user ratings.

In this video we will look at Motor Sich MB 8 walk-behind tractors:

Chainsaw "Motor Sich" 270

“Pro” class equipment can easily become a necessary part of a professional lumberjack or builder. Good power indicators, together with a perfectly selected tire component, easily saw through even the oldest and most durable trees, turning them into a stack of firewood.

Peculiarities:

• decompression valve, which reduces the force impact during startup;
• the use of a special starter damper, which has anti-vibration value for the entire unit, so that the operator experiences vibrational movements harmful to the body as little as possible;
• convenient design of a gasoline tank, in which it is convenient to monitor consumption and its balance;
• the handles put a slight load on the arms and shoulders, thereby guaranteeing more precise fixation with the hands;
• the air flow goes through 2 levels of filtration;
• keyless air filter service;
• thorough cylinder-piston part;
• chain catcher to prevent accidental slipping of the web and possible injuries;
• inertial brake that stops the chain in less than a second when the saw kickback occurs;
• the sound pressure of the device is within acceptable limits;
• safety for the atmosphere and climate through the absence of emissions of greenhouse and other gases.

Specifications:

• The potential of the motor part is 3600 W;
• Inches of cutting blade pitch – 3/8;
• Guide – 0.45 m;
• Lubricant tank – 0.37 l;
• The volume of the fuel vessel is 0.77 l;
• Weight – 7800 g.

Main types of power tools

Gasoline tools are a general term for a variety of equipment that can operate on the basis of a flammable composition. The following types are distinguished:

• petrol mower (motor mower) - helps to keep the garden and personal plot clean, quickly and efficiently get rid of tall grass;
• chainsaw - you can use it to cut trees without any problems (for example, a Foresta chainsaw or a Husqvarna chainsaw are perfect for home use);
• a gasoline generator is an indispensable assistant in construction and repair work (you can also choose a diesel generator, which will help fully provide power to a country house);
• motor drill - for creating holes in soil of varying hardness;
• gasoline heat gun - helps to quickly and efficiently warm up any room.

You need to choose one option or another taking into account the tasks you plan to perform.

Chainsaw "Motor Sich" 470

Opens the 4th generation of gasoline saws, which are characterized not only by increased power, but by an improved design. Construction and logging work are the main areas for which the purchase of this model will be most justified. It fells forests, splits trees into logs and boards, and all this in a very compact design.

Advantages:

• the motor is purged through 4 channels;
• modernized fuel and ignition systems;
• pre-filtration air purification;
• additional chain brake;
• simple control via a single lever;
• The housing cover is secured with quick releases for even easier access.

Specifications:

• Motor unit potential – 3600 W;
• Blade pitch – 9.3 mm;
• Saw part size – 46.5 cm;
• The volume of the fuel vessel is 0.77 l;
• Weight – 6400 g.

Model overview

The Zaporozhye plant offers several different modifications of equipment. Let's take a look at their similarities and differences.

• The ground clearance in Motor Sich walk-behind tractors is 24 cm, which allows work to be done on uneven surfaces.
• Attachments are connected to the power take-off shaft, which improves the functionality of the walk-behind tractor
• Thanks to the differential on the wheels, you can easily turn the device in a small area.
• All Motor Sich models are equipped with a 6-speed gearbox: 4 forward and 2 reverse.

The main difference is the weight and installed engines. Therefore, let's look at an example of each model.

MB-6

This model has an engine power of 6 horsepower. There are petrol and diesel options.

Simply MB-6 is designated as a gasoline version. The motor for it is produced directly at the Motor Sich plant and is called D-250.

MB-6D

Diesel engines are considered more reliable and durable. Therefore they are in great demand. Motor Sich MB-6D diesel walk-behind tractors are equipped with a Weima engine.

MB-6D weighs 215 kg.

Motoblock Motor Sich MB-6

Motoblock Motor Sich MB-6D

Motoblock Motor Sich MB-6DE

MB-6DE

An improved model of the MB-6D walk-behind tractor, which has not only a manual starter, but also an electric one. It allows you to easily start the engine in winter.

Due to the installed battery, the weight of this model increases to 235.

MB-8

This model has a Motor Sich 05853-02 gasoline engine with a power of 8 hp. It gathers directly in Zaporozhye.

The device weighs 217 kg.

Motoblock Motor Sich MB-8

Motoblock Motor Sich MB-8E

MB-8E

Improved model MB-8 with an electric battery, electric starter, headlight and protection installed on the front of the device.

Because of this, the weight of the device has also increased, which without fuel is 230 kg.

MB-9

The model has an engine power of 9 horsepower. The Motor Sich MB-9 walk-behind tractor is equipped with a single-cylinder four-stroke Weima 177F/P engine.

Motoblock Motor Sich MB-9

MB-9E

An improved MB-9 model with an electric starter and a front-mounted footrest, which allows you to lean on the Sich MB-9E walk-behind tractor during engine warm-up, repairs or breaks in operation.

Motoblock Motor Sich MB-9E Motoblock Motor Sich MB-9DE

MB-9DE

This device has not only an electric starter, but also a Weima 186 FE diesel engine. It allows you to extend the service life and reduce fuel consumption. That’s why the Motor Sich MB-9DE walk-behind tractor costs more than previous models.

The walk-behind tractor has a single-cylinder four-stroke engine with a power of 13 hp. From the manufacturer Weima.

It is problematic to activate it with a manual starter, therefore, there are only models with an electric starter.

Chainsaw "Motor Sich" 475

One of those products that belong to the 4th generation of petrol tools from this manufacturer. He is not afraid of any type of work, even if it is quite extreme and grueling.

Advantages:

• ideal combination of power and weight of the structure;
• gas distribution in the engine according to a new innovative formula;
• the ignition fires quickly and reliably;
• operator protection from kickback;
• single lever control principle;
• use of easily removable fasteners in the design;
• nice price.

Specifications:

• Motor power resource – 3600 W;
• Chain pitch – 9.3 mm;
• Saw part size – 46.5 cm;
• Fuel tank volume – 0.7 l;
• Weight – 6700 g.

Characteristics:

Main advantages:

• minimum weight for chainsaws of this power class;
• new two-stroke engine with improved valve timing and efficient four-channel scavenging;
• easier starting due to a new decompression valve and an improved ignition system;
• preliminary cleaning of the air consumed by the engine, which makes it possible to increase the life of parts of the cylinder-piston group and increase the maintenance interval of the air filter;
• increased engine power by 5-10%;
• automatic chain brake during kickback;
• single-lever control of engine operating modes (conveniently located on the rear handle);
• The easily removable cover of the chainsaw body provides quick access to the main engine components, which significantly reduces the time required to maintain the chainsaw.

The standard tire length is 64 double steps.

Chainsaws MS-470 and MS-475, thanks to the use of new design solutions, have a minimum specific weight, which makes it possible, with the achieved level of reliability, to become leaders in their market segment.

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Maintenance and repair – what is important to know and remember?

Despite all sorts of prejudices that can help you say “no” to a new purchase, there is nothing to be afraid of - these gasoline comrades have passed absolutely all tests, both in 40 0 ​​heat and severe frosts. But you need to take into account that any technology is not eternal. You can extend the life of even a faulty mechanism with repairs. What is needed for this? The main thing is to understand the technology and its operating principle, and secondly, the availability of spare parts. Many people advise doing this only in technical support services, but no one has yet canceled amateur activities at home.

Most often, the fuel system and clutch fail, but the initial adjustment of the chainsaw should still start with the carburetor.

Summary

When making a final decision regarding one of the models, you must be sure that all operating conditions are suitable for the tasks. After all, only in this case can you count on the exceptionally full efficiency of the selected chainsaw.

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Carburetor adjustment

As we have already mentioned, the manufacturer sets fairly precise settings at which your chainsaw should work well. However, during operation, individual components and parts wear out and factory settings are violated.

Moving any of the adjusting screws even a quarter turn can lead to quite unpleasant consequences.

If you notice that the chainsaw is malfunctioning, has lost power, and often stalls for no apparent reason: it’s time to adjust the carburetor.

The process of adjusting a Chinese chainsaw is carried out by manipulating three screws: H (High), L (Low) and T. Screw T, depending on where and who made your chainsaw, may be marked S or LA.

• High: regulates the operation of the chainsaw at high speeds, is responsible for the operation of the main jet;
• Low: responsible for the operation of the engine at low speeds, responsible for the idle jet;
• T (S, LA): this screw is used to adjust the optimal idle speed level;

When starting to adjust the carburetor, find the chainsaw passport with a table of rotation angles of the adjusting screws. Adjustment can be made with a special or regular flat-head screwdriver.

Step-by-step instructions for adjusting the carburetor:

• Place the chainsaw in a well-lit room or open area;
• The next stage depends on the chainsaw. On some models, adjustments can be made without removing the air filter protective cover. Other manufacturers cover the screws with a cover that must be removed;
• We begin the main stage of adjustment by manipulating screws H and L. Tighten them until they stop. When you feel resistance, turn it back one and a half turns;
• Try starting the engine. If it does not start, achieve the desired result by turning screw T clockwise, no more than ¼ turn;