Stihl MS 661 C-M Instruction Manual
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Stihl MS 661 C-M Instruction Manual

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STIHL MS 661 C-M
2 - 30
Instruction Manual

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Summary of Contents for Stihl MS 661 C-M

  • Page 1 STIHL MS 661 C-M 2 - 30 Instruction Manual...

  • Page 2: Table Of Contents

    STIHL expressly commit themselves to a sus‐ tainable and responsible handling of natural resources. This user manual is intended to help you use your STIHL product safely and in an environmentally friendly manner over a long service life. We thank you for your confidence in us and hope you will enjoy working with your STIHL product.

  • Page 3: Overview

    3 Overview English 1 Front Hand Guard 21 Rear Handle Helps protect operator’s left hand from con‐ For operating, holding and controlling the tact with the saw chain, serves to engage the chainsaw. chain brake and activates the chain brake by 22 Throttle Trigger Lockout inertia in certain kickback situations.

  • Page 4: Safety Precautions

    Practice cutting logs on a saw‐ horse or other support. Observe safety notices on kickback ► If you have any queries: Contact your STIHL and take the necessary precautions. servicing dealer for assistance. ■ The chainsaw’s ignition system produces an electromagnetic field.
  • Page 5 EN 166 or national stand‐ while the engine is running. Hot exhaust gas ards are available from retailers. can ignite easily flammable materials and ► STIHL recommends that you wear a face cause a fire. shield. ► Keep exhaust gas well away from easily ►...
  • Page 6 Mounting a combination of guide bar and ► Sharpen the chain properly. saw chain recommended in this User Man‐ ► If you have any queries: Contact your STIHL ual. servicing dealer for assistance. ► If the controls do not function properly: Do Fuel Mixture and Refueling not use your chainsaw.
  • Page 7 ► Use a mixture of gasoline and two-stroke ► Disengage the chain brake before you start engine oil that is not older than 30 days cutting. (STIHL MotoMix: 2 years). ■ The rotating saw chain can cut the operator. This can result in serious injuries. Working ►...
  • Page 8 This can result in serious injuries and damage to property. ■ Inexperienced users cannot assess the dan‐ ► Stop work and contact your STIHL dealer for gers of felling a tree. This can result in serious assistance.
  • Page 9 4 Safety Precautions English ► Stop the felling operation and use a cable 4.9.2 Pull-in winch or suitable vehicle to pull the tree to the ground. Reactive Forces 4.9.1 Kickback The saw is pulled away from the operator when the bottom of the bar is used for cutting. WARNING ■...

  • Page 10: Preparing The Saw For Operation

    English 5 Preparing the Saw for Operation 4.10 Transporting ■ The muffler and engine may be hot after a period of operation. This can result in burn WARNING injuries. ► Wait until the muffler and engine cool down. ■ The saw may turn over or shift during trans‐ ■...

  • Page 11: Assembling The Saw

    English ► If you cannot carry out these steps: Do not use ► Fit the guide bar and chain on the saw and your chainsaw and contact your STIHL servic‐ check the following points: ing dealer for assistance. – Chain drive links are seated in teeth of chain sprocket (7).

  • Page 12: Engaging And Disengaging The Chain Brake

    ► Now try again to close the oil tank. ► If the oil tank still cannot be closed properly: Do not use the chainsaw and contact a STIHL ► Swing the grip on the oil tank cap to the verti‐...

  • Page 13: Mixing Fuel And Refueling The Chainsaw

    If you mix the fuel yourself, use only STIHL two- the tank. Fuel may escape as a spray and stroke engine oil or another high-performance ignite when the fuel tank cap is opened.

  • Page 14: Starting And Stopping The Engine

    ► If the fuel tank still cannot be closed properly: tures can cause the fuel mix to separate much Do not use the chainsaw and contact a STIHL faster. The saw can be damaged if it is used dealer for assistance.

  • Page 15: Checking The Saw

    ► If the Master Control lever (3) is in position Briefly depress the lockout lever (4) and blip ► Use a STIHL gauge to check the wear marks the throttle trigger (5). on the sprocket. The Master Control lever springs to position .

  • Page 16: Operating The Saw

    STIHL servicing dealer for assistance. ► Do not use your chainsaw and contact your ► Use a STIHL filing gauge to check that a filing STIHL servicing dealer for assistance. angle of 30° has been maintained on all cut‐...
  • Page 17 11 Operating the Saw English NOTICE ■ The engine may overheat if is operated in win‐ ter mode at temperatures above +10 °C. ► Change setting to summer mode. ► Shut off the engine and engage the chain brake. ► Push the shutter (2) into the guides (3) as far as it will go.
  • Page 18 To reduce oil feed rate ► Do not use your chainsaw and contact your ► Shut off the engine and engage the chain STIHL servicing dealer for assistance. brake. Your saw has a malfunction. ► Turn the oil pump adjusting screw (1) counter‐...
  • Page 19 11 Operating the Saw English 11.6 Sawing WARNING ■ If kickback occurs, the chainsaw can be thrown up in the direction of the operator. This may result in serious or fatal injury to the user. ► Always cut with the chain running at full speed.
  • Page 20 English 11 Operating the Saw 11.8.3 Basic information on felling cut 1/10 Ø ► If the wood is sound and long-fibered: Observe the following points when making C Felling notch sapwood cuts: The felling notch determines the direction of – The cuts must be the same at both sides. fall.
  • Page 21 11 Operating the Saw English ► Shout a warning. ► With outstretched arms, cut through the stabi‐ lizing strap horizontally from outside at the same level as the felling cut. The tree falls. 11.8.8 Felling normal, large diameter tree A normal tree is felled with a felling cut and stabi‐ lizing strap.

  • Page 22: After Finishing Work

    English 12 After Finishing Work 11.8.9 Felling a small diameter leaner ► Hold the saw horizontally and swing it into the A leaner is felled with a felling cut and holding felling cut as far as possible. strap. This felling cut must be performed if the ►...

  • Page 23: Storing

    ► Clean the saw chain with a soft brush or ► Allow chainsaw to cool down. STIHL resin solvent. ► Clean the saw with a damp cloth or STIHL ► Mount the bar and chain. resin solvent. ► Clean cooling air slots with a soft brush.

  • Page 24: Maintenance

    STIHL recommends the following maintenance inter‐ vals: Chain brake ► Have the chain brake serviced by a STIHL servicing dealer at the following intervals: – Full-time usage: every 3 months – Part-time usage: every 6 months –...

  • Page 25: Repairing

    – Round file matches the chain pitch. guide bar. – File from the inside to the outside of the cut‐ ► Remove burr with a flat file or a STIHL guide ter. bar dressing tool. – Hold the file at right angle to the guide bar.
  • Page 26 The chain is over-ten‐ ► Tension chain properly. sioned. Bar nose sprocket is ► Clean the bar nose sprocket with STIHL resin solvent. blocked. Smoke or burning Chain is not properly ► Sharpen the chain properly. smell while cutting.

  • Page 27: Specifications

    19 Specifications – Control handle: 5.6 m/s². The K value for the vibration level is 2 m/s². 19.1 STIHL MS 661 C-M Chainsaw For information on compliance with Employers' – Displacement: 91.1 cc Vibration Directive 2002/44/EC see – Engine power to ISO 7293: 5.4 kW (7.3 bhp) www.stihl.com/vib.

  • Page 28: Spare Parts And Accessories

    STIHL cannot warrant for the use of those parts. These symbols indicate original STIHL spare parts and original STIHL acces‐ Original STIHL spare parts and original STIHL sories. accessories are available from STIHL dealers. STIHL recommends the use of original STIHL spare parts and accessories.

  • Page 29: Disposal

    22 Disposal ANDREAS STIHL AG & Co. KG 22.1 Disposing of Chainsaw Information on disposal is available from STIHL servicing dealers. ► Dispose of the chainsaw, guide bar, saw chain, fuel mix, gasoline, two-stroke engine oil, Dr. Jürgen Hoffmann, Head of Product Data,...
  • Page 30 English 23 EC Declaration of Conformity 0458-759-0121-D. VA0.A21.
  • Page 31 23 EC Declaration of Conformity English 0458-759-0121-D. VA0.A21.
  • Page 32 *04587590121D* 0458-759-0121-D...

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