Carburetor Adjustment Chainsaws Motor Sich 270

Motor Sich chainsaws have appeared on the international distribution arena relatively recently. Tools are completed with wearproof motor systems with high productive potential. They are distinguished by multifunctionality, the ability to work regardless of climatic conditions and attractive design.

Carburetor Adjustment Chainsaws Motor Sich 270

Chainsaw Motor Sich 270

A professional-type model copes with difficult production tasks: in AL-KOy of large trees (diameter up to 100 centimeters), sawing logs, caring for park and house territories.

A chainsaw is operated under various operating conditions. The design of the incendiary and fuel supply unit allows the unit to be used even at subzero temperatures. A reliable drive ensures fast rotation of the saw set and, consequently, a high cutting speed.

Specifications:

  • Motor with a power of 3.6 kW;
  • Gas tank capacity. 750 milliliters;
  • The capacity of the oil tank is 350 milliliters;
  • Guide. 45 centimeters;
  • Stride length. 9.3 mm;
  • Weight. 7.8 kilograms.

Advantages of the 270 model:

  • The presence of a modernized centrifugal clutch. The chain stops at idle;
  • Electric ignition system;
  • Membrane carburetor is responsible for the efficient enrichment of fuel with air;
  • The primer forces the fuel mixture into the carburetor system;
  • The facilitated launch of the tool;
  • Fuel mixes are spent more economically. Oil and AI-92 gasoline are mixed in the ratio 1:40;
  • Cutting elements are lubricated automatically;
  • Combined type control lever on the rear handle;
  • The throttle is securely fixed;
  • Vibration protection is provided by the presence of built-in shock absorbers;
  • The chain stops inertia;
  • The presence of a chain catcher.

Chainsaw Motor Sich 470

Saw launch started in 2016. The manufacturer increased the power of the unit and the reserve of torque, while reducing weight and increasing safety during operation. A chainsaw is used in the agricultural and household sectors, as well as in forestry.

Video: Carburetor Adjustment Chainsaws Motor Sich 270


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Technical specifications:

  • Motor with a power of 3.8 kW;
  • The capacity of the fuel tank is 750 milliliters;
  • The capacity of the oil tank is 0.35 liters;
  • Tire. 45 centimeters;
  • Cutting headset rotation speed. 40 meters / second;
  • Pitch. 3/8 inch;
  • Weight. 4.7 kilograms.

Advantages of the 470 model:

  • Excellent balancing eliminates the feeling of operator fatigue;
  • An improved engine with a four-channel purge and a modified gas distribution allowed to reduce harmful emissions and consume fuel economically;
  • Simplified start-up. electric ignition is created, starter resistance is reduced by 40%;
  • The dual-circuit air purification system allows you to save a cylinder piston resource;
  • The throttle is controlled by a combination switch;
  • The emergency brake system protects the operator from a back strike;
  • The unit is light in weight and modest in size.

Chainsaw Motor Sich 475

The tool is functional and modernized. The single-cylinder engine operates in four modes and is designed for a long time without interruption. Motor overheating is prevented by ventilation.

Technical indicators:

  • Motor with a power of 4.3 kW;
  • The capacity of the fuel tank is 750 milliliters;
  • The capacity of the oil tank is 350 milliliters;
  • Weight. 6.7 kilograms.

The model is characterized by:

  • The presence of a decompressor;
  • By primer;
  • Electric ignition;
  • High-quality cutting headset;
  • Anti-vibration system;
  • Chain brake system of manual and inertial start;
  • Lubricated chain.

Chainsaw carburetor adjustment Motor Sich

Nuances that indicate the need to adjust the carburetor of a gasoline tool:

  • The engine stalls after starting, the tool does not start. This indicates excess air and lack of fuel;
  • The increased consumption of the fuel mixture, as a result, the emission of more exhaust gases. Indicates a surplus of fuel.

Mechanical reasons:

  • Strong vibrations may damage the protective reservoir. All three bolts are loose;
  • The piston part has worn out. It is possible to improve operation for a short time, but spare parts must be replaced;
  • Carb clogged. Due to poor-quality gasoline, scale or a damaged filter. In this case, the element is completely disassembled, washed and regulated.

The carburetor is adjusted with only three screws performing various functions:

  • L to adjust low revs;
  • H to adjust the upper revs;
  • T for idle control.

Screws L and H are turned clockwise to obtain increased revolutions. To lower them, they unscrew the other way. Screw adjustment sequence: L. H. T.

Factory adjustment is considered optimal, but tuning may be necessary for special cases (difficult climatic conditions). To configure, you will need a special tool.

Repair and adjustment of the unit can only be carried out with confidence in the correct operation. Otherwise, it is better to use the services of a specialist to prevent engine damage.