How to Start a Shtil Ms 250 Chainsaw

Descriptions of the Stihl MS-250 chainsaw

The chainsaw “Shtil” MS-250 is a semi-professional portable chain tool designed for cutting down trees, collecting fuel, pruning trees, using in landscape design, using in the construction of wooden buildings, sawing boards, etc. The weight of the chainsaw is 4.6 kg.

The manufacturer equipped the saw with an original Stihl single-cylinder petrol two-stroke engine with a capacity of 3.1 liters. With. The unit is started using a manual starter. The starting system is facilitated by a decompression valve. The carburetor is an original membrane type with a built-in compensator, which prevents the speed from falling during operation and improves the quality of the exhaust gases (the combustible mixture burns as completely as possible).

Side mounting of the tire with 4 bolts, easy access, protection of the operator’s hands. Tire size - 35 cm. Oilomatic chain 1.3 mm thick. has a pitch of ⅜ inches. Chain lubrication is automatic and supplied to specific points, saving lubricants by 50%. There is an automatic chain brake. Handles with vibration protection.

The basic package for the Shtil MS-250 chainsaw includes:

• tire 14 inches;
• tire 16 inches;
• Oilomatic chain;
• screwdriver key;
• tire cover;
• instructions.

Components of the Stihl MS-250 chainsaw

Chainsaw Stihl MS-250 technical specifications:

Characteristics and advantages of the Stihl MS-250 chainsaw

Let's get acquainted with the advantages of the German-assembled Stihl chainsaw:

1. Reliable, durable tool.
2. Original spare parts are interchangeable (with other modifications).
3. High build quality.
4. Possibility to choose the right tire size.
5. Automatic and economical lubricant supply.
6. Possibility to select the necessary chain - Oilomatic or Picco with pobeditovy tips.
7. Unpretentiousness in care and operation.
8. High safety of all components and mechanisms.
9. High power and torque.
10. Easy launch.
11. Anti-vibration protection.
12. The presence of a compensator in the carburetor.
13. Easy access to the air intake.
14. Reusable air filter.
15. Simplified single-lever control.
16. Protection from atmospheric precipitation.
17. The chainsaw is easy to repair.
18. Among the shortcomings, there is only one - the high price of the saw itself and its spare parts.

How to eliminate the risks of purchasing counterfeit goods?

On the domestic market, there are a small number of more or less successful copies of popular branded chainsaws, which are an order of magnitude inferior to branded designs in terms of reliability and durability.

Additionally: How to make a hedge trimmer with your own hands video

There are many ways to distinguish an original from a fake, but the most reliable option for purchasing a quality instrument is to contact a company store or a sales office of an official dealer. The above fully applies to the entire range of replacement equipment and consumable components.

User manual

The instruction manual is an invariable companion of gas-powered tools. It contains complete information about the chainsaw itself and describes detailed principles of working with it.

Each instruction must contain the following sections:

1. The structure of the unit in diagrams and with descriptions.
2. Table with technical characteristics of the MC 250 model.
3. Conditions for the safe use and maintenance of a Stihl chainsaw.
4. Preparing the tool for work.
5. Running in the Stihl MS-250 chainsaw.
6. Maintenance.
7. Malfunctions in operation and the reasons for their occurrence.

Preparing the chainsaw for use

The period of uninterrupted operation of the Shtil chainsaw, as well as the safety of the owner of the equipment, which is important, depends on the correctness of the actions performed.

We offer a simple algorithm of actions:

• the unit is assembled according to the descriptions from the instructions;
• the saw set is connected and securely fastened;
• the chain is tensioned;
• the fuel mixture is prepared;
• the finished mixture is poured into the fuel tank;
• the oil tank used to lubricate the chain is filled with the appropriate lubricant;
• the operator once again checks the tension of the mounting bolts;
• the chainsaw starts;
• the operator adjusts the idle speed (correct setting - the chain does not rotate at idle);
• The supply of lubricant to the chain mechanism is checked.

In order to properly prepare the fuel mixture, you need to purchase high-quality AI-92 gasoline and original Stihl oil for two-stroke engines. The fuel to oil ratio is 50/1. That is, you need to take 5 liters. gasoline and 100 ml. motor oil. The liquids are mixed thoroughly, the unused fuel mixture is stored for no more than 1.2-2 weeks.

Running in a chainsaw

The original product does not require any specialized procedures; the saw is initially ready for use. However, the first 4-8 tanks of the combustible mixture must be burned out in a gentle mode - this means that the engine power should not exceed 50%. In addition, the first hour of operation consists of alternating cycles: 2 minutes of operation, 10 seconds - idling, rest, etc. Attention: idling for more than 15 seconds harms the spark plug - carbon deposits form on it.

Chainsaw Stihl MS-250 in action

Maintenance of the Shtil MS-250 chainsaw

Before starting operational work:

• the headset is checked;
• the chain is tensioned;
• the bolt tension is checked;
• working fluids (fuel mixture and oil) are poured into the corresponding tanks;
• check the presence of lubrication on the chain;
• Idle operation is checked.
• After carrying out operational work:
• the chain tension is weakened;
• the chainsaw is cleaned of dust, dust and dirt;
• the air filter is cleaned;
• The saw set is checked, if necessary, the chain is sharpened, the bar is changed.

Scheduled maintenance is carried out for:

• idle settings;
• carburetor cleaning;
• replacing spark plugs;
• troubleshooting minor problems.

If there are serious problems, it is recommended to contact service centers to resolve them; their addresses are indicated in the instructions.

We invite you to watch a video that shows how to disassemble the Shtil MS-250 chainsaw:

Another video will tell you how to set up the carburetor of the Shtil MS-250 chainsaw:

Malfunctions and repairs

Knowing the causes of the problems, you can fix them yourself and restore the functionality of your gasoline tool. We list the typical malfunctions of Stihl MS-250 chainsaws:

The chainsaw does not start:

• the fuel mixture has run out;
• poor quality of the fuel mixture;
• there is no contact on the spark plug;
• break of a high-voltage wire;
• the fuel pump does not pump;
• filling the candle;
• there is carbon deposits on the spark plug and it needs to be cleaned;
• spark plug failure (replace after 100 hours of operation);
• fuel lines are clogged;
• magneto failed;
• the carburetor is clogged;
• carburetor settings are lost;
• The starter rope does not pull or tighten.

The chainsaw cannot develop speed:

• the candle is smoked;
• spark plug needs to be replaced;
• The carburetor needs to be cleaned.

The Shtil MS-250 chainsaw starts and stalls at idle, the reason is that the carburetor settings have gone wrong.

Running in Chainsaw Shtil 250

Content

Why do you need to break in a chainsaw

A chainsaw is a functional, useful device that is needed in a number of household and industrial tasks. Many agricultural and forested areas cannot do without a chain saw in the wood harvesting and processing industry. But for good operation for many years, you need to run-in the chainsaw in the first minutes of operation of the device. These manipulations occur with each piece of equipment from a new purchase and are designed to grind in all parts related to both the electric motor and the saw set.

Thanks to the easy processes, all tools, including calm saws , get the opportunity to work at a fairly productive pace during running-in, without early repair or adjustment work. Therefore, to say whether running-in manipulation is necessary, the correct answer would be a positive answer, the main thing is that the tool is processed correctly. Performing these actions is just as important as a precise fit of the chain, high-quality repair of a power tool, or the need to purchase trimmer line from a responsible manufacturer.

Running in a chainsaw. features and nuances

This process begins with the purchase of the tool, when the engine makes only the first revolutions. Therefore, the running-in of the chainsaw involves treating the motor, rotation parts, and clutch with special oil. By adding oil to gasoline, the working surfaces are processed at 180 ms of the piston group calm, allowing each surface to be thoroughly lubricated, first in idle mode, and then in operating mode. But the saw should also be run in according to the rules, because there are certain features of this process, where:

1. The required oil must be made by the manufacturer, as well as the brand of gasoline saw.
2. The octane number should not be below 90.
3. You should not make long runs so that the chainsaw does not have time to overheat and cause new breakdowns. With all this, gas adjustments and other influences are made, both idle and working.

READ How to Check the Oil Level in an Oregon Chainsaw

Proper running-in of a chainsaw. We refuel, check and start!

Modern household chainsaws

"Oleo-Mac" developed with the introduction of technologies used for production.

Running in petrol tools

Run-in

the latest
Stihl
chainsaw in suspended form.

But to accurately carry out running-in of gasoline saws, it is better to use a step-by-step guide, or contact specialists. Representatives will assist not only with putting the tool into operation, but also with many other operations, such as selecting and installing a chain for a chainsaw of the appropriate length, performing repairs, adjustments, and others.

Step-by-step instructions for running in a new chainsaw

When putting the tool into operation, many people wonder what the running-in of a gasoline saw involves and how it is done. By following the step-by-step instructions, you can achieve a very successful result, reflected in the future operation of the saw. And so, you need:

1. Prepare a homogeneous mixture of oil and gasoline. With all this, the running-in oil must be a branded product, preferably one corresponding to the manufacturer of the gas-powered tool itself. It is described in more detail in the annotation for your saw model.
2. Accurately follow the proportions of the goods introduced (25-30 ml of oil per liter of gasoline) so that the mixture acquires the desired consistency. Almost always this is determined by the octane number of gasoline, indicated in the same annotation.
3. Check the presence of oil poured into the tank and used for chain lubrication by placing a sheet of paper against the guide bar while the saw is turned on. If lubricant enters, a trace of it will appear on the sheet.
4. Turn off the inertia brake so that the work does not cause melting of the housing in the clutch area.
5. Process the saw using the method of turning it on in idle mode for 15-20 minutes with a release of gas every half a minute.
6. Carry out the treatment as usual, using small and soft wood at first, without pressing hard. Over time, the density and size of the tree grow.
7. How actively and how long to run-in depends on the power of the tool itself and the intensity of the process, but in general, less than three hours of total time is required for processing in active and passive operation modes.

READ Chainsaw Stalls When Tilted

But this treatment is used not only for new saws. Running in is also carried out after replacing the piston group of the engine. Having a prepared base of professionals and criteria, it offers services for running-in the engine with professional introduction of it into operation, processing of the necessary components, and checking aspects of the technical direction. But if you have the necessary ability to service the tool, all this can be done without the help of others by purchasing from us oil for lubricating the chainsaw chain and its other devices, the necessary maintenance compounds, spare parts and component products.

Repairing walk-behind tractors can be useful for various reasons. During operation, smoke suddenly appeared from the exhaust pipe, or the engine did not gain sufficient power, or unusual sounds appeared in the device. In this case, you should turn it off immediately.

It will allow you to transform your boat into a high-speed “vessel”, while at the same time you will fully enjoy fishing or a walk on the water.