Direct product selection: Petrol chainsaws for agriculture and horticulture

MS 311

Multilaterally 3,1kW-Petrol chainsaw

General

MS 311
Additional images

For felling firewood in medium-density stands. With long-life air filter system for a long filter service life, economical 2-MIX engine, decompression valve for effortless starting.

Versions



Deviations from the product range and information provided here are possible, depending on the country. VIKING reserves the right to make changes to technical specifications and equipment.

Technical specifications

MS 311

Technical specifications

Displacement 59 cm³
Power output 3,1/4,2 kW/bhp
Weight 1) 6,2-6,4 kg
Power-to-weight ratio 2-2,1 kg/kW
Sound pressure level 2) 105 dB(A)
Sound power level 2) 117 dB(A)
Sound power level 2) 115 dB(A)
Vibration level left/right 3) 4/4 m/s²
Saw chain pitch 3/8"
STIHL Oilomatic saw chain type Rapid Micro (RM)

1) Without fuel, without bar and chain
2) K-factor according to DIR 2006/42/EC = 2.5 dB (A)
3) K-factor according to DIR 2006/42/EC = 2m / s ²

Deviations from the product range and information provided here are possible, depending on the country. VIKING reserves the right to make changes to technical specifications and equipment.

Features

MS 311

Standard equipment

  • STIHL 2-MIX engine Zoom
    STIHL 2-MIX engine

    The two-stroke engine with STIHL 2-MIX technology saves up to 20 % of fuel and reduces emissions by up to 70 % compared to STIHL 2-stroke engines of the same performance class without 2-MIX technology.

  • Carburettor heating (V) Zoom
    Carburettor heating (V)

    By changing the chain saw from summer to winter operation, the intake air is pre-heated over the engine fins. This ensures that the carburettor does not ice up and you can continue working in freezing temperatures.

  • Controlled-delivery oil pump Zoom
    Controlled-delivery oil pump

    Different bar lengths, wood types and sawing techniques require different amounts of oil. The controlled-delivery oil pump allows the user to select just the right amount of oil for the job at hand.

  • Side-mounted chain tensioning Zoom
    Side-mounted chain tensioning

    Side-mounted chain tensioning makes it easy to tension the chain safely.

  • Pre-separation air filtration system Zoom
    Pre-separation air filtration system

    STIHL long-life air filtration systems with pre-separation achieve perceptibly longer filter life compared with conventional filter systems. Air drawn in is swirled. The larger, heavier particles are ejected. The pre-cleaned air is routed to the air filter via the pre-separator duct.

  • Advanced combustion technology Zoom
    Advanced combustion technology

    Four overflow channels swirl the fuel-air mix before ignition, allowing for optimum combustion and highly efficient performance. The result is lower fuel consumption and high torque across a broad rpm range.

  • Compensator Zoom
    Compensator

    This controller in the carburettor prevents the fuel-air mixture getting richer as the air filter becomes clogged. The correct quantity of fuel is delivered to the carburettor depending on the quantity of air passing through the air filter. This keeps the fuel/air ratio in the combustion mixture constant and hence also the engine power. The filter doesn't need to be cleaned until an appreciable drop in power occurs.

  • Decompression valve Zoom
    Decompression valve

    The decompression valve is part of the easy starting system. The valve should be pressed before starting to reduce the compression pressure when starting, as well as reducing the effort needed to pull the starter rope. The decompression valve is semi-automatic; it must be pressed manually before starting, but then closes automatically.

  • STIHL anti-vibration system Zoom
    STIHL anti-vibration system

    Precisely calculated buffer zones minimise the transfer of engine and saw chain vibrations to the front and rear handles. The chainsaw therefore runs noticeably smoother. This allows the user to save their strength and work longer.

  • STIHL Ematic System Zoom
    STIHL Ematic System

    Compared to conventional bars without Ematic, the STIHL Ematic system reduces the consumption of chain lubricant by up to 50 %, depending on the type of wood and the cutting attachment used. This system comprises a STIHL Ematic or Ematic S guide bar, a STIHL Oilomatic saw chain and a variable-flow or reduced-flow oil pump. As a result, virtually every drop of chain lubricant is delivered to exactly the right spot.

  • Single-lever master control Zoom
    Single-lever master control

    All important functions such as start, choke, throttle and stop are operated via a single lever.

  • Tool free fuel caps Zoom
    Tool free fuel caps

    Special caps to open and close the tank cap quickly, easily and without tools.

Retrofitted equipment

  • STIHL ElastoStart Zoom
    STIHL ElastoStart

    Due to compression pressure, jerky stresses occur when starting internal combustion engines. The damping element in the ElastoStart special starter grip alternately absorbs and releases force according to the compression pattern. The result is smooth, even starting.

Deviations from the product range and information provided here are possible, depending on the country. VIKING reserves the right to make changes to technical specifications and equipment.

Accessories

MS 311

Accessories

    • Chainsaw bag Zoom
      Chainsaw bag

      For tidy storage and transport of chainsaws with bar lengths up to 45 cm.

    Versions

    • Combination socket tool Zoom
      Combination socket tool

      For tensioning the chain and changing the chain, bar and spark plug. Width across flats: 19 (for MS 261 up), 19-13 (for MS 271, MS, 291, MS 311, MS 391), 19–16 (for MS 170, MS 171, MS 180, MS 181, MS 193 C, MS 211, MS 231, MS 241, MS 251), 16 and 13 ( for MS 150, MS 201, MS 201 T).

    Versions

    • Multi-function tool Zoom
      Multi-function tool

      Practical, multi-function quality tool in a sturdy plastic case. 3.5 mm flat-blade screwdriver for carburettor adjustment and cleaning grooves, Torx® TX 27 screwdriver, nylon pouch with belt loop. Width across flats 19-13 for MS 271, MS 291, MS 311 and MS 391, width across flats 19-16 for MS 170, MS 171, MS 180, MS 181, MS 193 C, MS 211, MS 231, MS 241 and MS 251.

    Versions

Deviations from the product range and information provided here are possible, depending on the country. VIKING reserves the right to make changes to technical specifications and equipment.

Documents

Owners manuals and safety brochures

Owners manuals

STIHL MS 311, 391 (D) Download PDF, 2,4 MB
STIHL MS 311, 391 (D, F, I) Download PDF, 5,7 MB

Safety brochures

Sicheres Arbeiten mit dem Trennschleifer (D) Download PDF, 1,3 MB
Sicheres Arbeiten mit der Heckenschere (D) Download PDF, 764 KB
Sicheres Arbeiten mit der Motorsäge (D) Download PDF, 1011,7 KB
Sicheres Arbeiten mit einem Reinigungsystem (D) Download PDF, 935,7 KB
Sicheres Arbeiten mit Motorsense und Freischneider (D) Download PDF, 810,1 KB

Notes:

  • STIHL online owner’s manuals are usually for the latest versions of the machine. Your product may be a slightly older production model but the manual will still be appropriate for the relevant model number
  • The languages ​​contained in the document are also displayed in brackets, for example (GB) = English

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