Stihl MS 261 C-M Instruction Manual
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Stihl MS 261 C-M Instruction Manual

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STIHL MS 261 C-M
Instruction Manual

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  • Page 1 STIHL MS 261 C-M Instruction Manual...

  • Page 3: Table Of Contents

    Shroud Air Filter System Cleaning the Air Filter M-Tronic Spark Arresting Screen in Muffler Spark Plug This instruction manual is protected by copyright. All rights reserved, especially the rights to reproduce, translate and process with electronic systems. MS 261 C-M...

  • Page 4: Guide To Using This Manual

    STIHL's philosophy is to continually This Instruction Manual refers to a improve all of its products. For this Intake air baffle: summer STIHL chain saw, also called a machine reason we may modify the design, operation in this Instruction Manual.

  • Page 5: Safety Precautions

    Keep bystanders, especially children, injury. STIHL excludes all liability for and animals away from the work area. personal injury and damage to property The user is responsible for avoiding...
  • Page 6 (bayonet-type) in chain scabbard. This avoids the risk of have been approved by STIHL for this position, turn as far as the saw chain starting unintentionally. machine. If you have any questions in stop and fold the cliplock this respect, consult a servicing dealer.
  • Page 7 – danger of immediately by moving the Master injury due to the rotating saw chain. Control lever / stop switch to STOP, 0 or †. MS 261 C-M...
  • Page 8 Check condition and secure fitting – regularly and correct when possible. Store the machine in a safe, dry room. Check sharpness Have the machine repaired by a STIHL – servicing dealer if the saw chain still Never touch the saw chain when the Vibrations continues to move during idling.
  • Page 9 Instruction Manual. All other work should periodically. be carried out by a servicing dealer. Inspect chain catcher – replace if STIHL recommends that maintenance damaged. and repair work be carried out only by Switch off the engine authorised STIHL dealers. STIHL...

  • Page 10: Reactive Forces

    Always cut at full throttle – caught or encounters a foreign object in Be aware of the location of the guide – the wood, the chain saw may suddenly bar nose Do not cut with the guide bar nose – MS 261 C-M...

  • Page 11: Working Techniques

    In these cases, do not use a chain saw – use a hoist, winch or dragline instead. Pull out trunks that are lying about and have been cut free. Whenever possible, deal with them in open areas. MS 261 C-M...
  • Page 12 If there is a risk of fire, do not and off balance. Always engage the use your chainsaw near combustible spiked bumper securely in the tree or limb. MS 261 C-M...
  • Page 13 – be especially careful with trunk damage or Make sure no-one is endangered by the deadwood (brittle, rotten or dead falling tree – the noise of your engine wood) may drown any warning calls. MS 261 C-M...
  • Page 14 Plan escape paths on slopes – parallel to the slope When walking away along the – escape path, watch out for falling limbs and watch the top of the tree. MS 261 C-M...
  • Page 15 Sapwood cuts in long-fibered softwood planned – risk of accident! help prevent sapwood splintering when With rotten trunks, leave a wider the tree falls. Make cuts at both sides of – hinge the trunk at same height as bottom of MS 261 C-M...
  • Page 16 (E)). – higher than bottom of felling until the depth of the kerf is twice the Contact the STIHL dealer for the notch (C). width of the guide bar selection of the felling wedge (suitable The holding strap (F) or stabilizing Swing the machine slowly into the length, width and height).
  • Page 17 The felling cut must be continued on the Do not cut into the hinge – opposite side of the trunk. Make the felling cut up to the Ensure that the second cut is at the stabilizing strap (2) same level as the first cut. MS 261 C-M...
  • Page 18 Cut through the stabilizing strap, horizontal level with the felling cut, with arms fully extended Felling Cut with Holding Strap (Leaner) A) Thin trunks Implement this felling cut when the trunk diameter is smaller than the cutting length of the chainsaw. MS 261 C-M...
  • Page 19 Make the felling cut up to the hinge (2) Do not cut into the hinge – Make the felling cut up to the holding strap (3) Do not cut into the holding strap. Shout a second warning immediately – before the tree falls. MS 261 C-M...

  • Page 20: Cutting Attachment

    If non-matching components are used, the cutting attachment may be damaged Depending on the model, the scabbard beyond repair after a short period of extension either comes standard with operation. the saw or is available as a special accessory. MS 261 C-M...

  • Page 21: Mounting The Bar And Chain (Side Chain Tensioner)

    Turn the screw (1) Wear work gloves to protect your hands counterclockwise until the tensioner from the sharp cutters. slide (2) butts against the left end of Fit the chain – start at the bar nose. the housing slot. MS 261 C-M...

  • Page 22: Mounting The Bar And Chain (Quick Chain Tensioner)

    (3). Removing the sprocket cover Position the tensioning gear (1) against the guide bar (3) so that the stud (4) projects through the upper hole and the short guide peg (5) locates in the lower hole. MS 261 C-M...
  • Page 23 Turn the tensioning gear (1) clockwise as far as stop. Turn the guide bar so that the tensioning gear is facing you. Fit the chain sprocket cover so that the wingnut locates on the collar screw (3). MS 261 C-M...

  • Page 24: Tensioning The Saw Chain (Side Chain Tensioner)

    "Operating often than one that has been in use for some time. Instructions". some time. Check chain tension frequently – Check chain tension frequently – see chapter on "Operating see chapter on "Operating Instructions". Instructions". MS 261 C-M...

  • Page 25: Fuel

    Engine Oil can quickly make the fuel mix unusable. gasoline vapor. If you mix the fuel yourself, use only STIHL MotoMix may be stored for up to STIHL two-stroke engine oil or another STIHL MotoMix 2 years without any problems.

  • Page 26: Fueling

    Raise grip to vertical position. and do not overfill the tank. The marks on the tank cap and fuel tank STIHL recommends you use the STIHL are then in alignment. filler nozzle for fuel (special accessory). Fill the fuel tank.

  • Page 27: Chain Lubricant

    Biological chain oil must be resistant to Right: Bottom of cap in correct posi- aging (e.g. STIHL BioPlus), since it will tion – inner mark is under the otherwise quickly turn to resin. This grip. It is not in line with the results in hard deposits that are difficult outer mark.

  • Page 28: Filling Chain Oil Tank

    Take care not to spill chain oil while work. refilling and do not overfill the tank. Every new chain has to be broken in for STIHL recommends you use the STIHL about 2 to 3 minutes. filler nozzle for chain oil (special accessory).

  • Page 29: Chain Brake

    It is necessary to have it serviced and maintained regularly by trained personnel. STIHL recommends that you have servicing and repair work carried Pull the hand guard back toward the out exclusively by an authorized STIHL front handle, servicing dealer. Maintain the following servicing intervals: NOTICE...

  • Page 30: Winter Operation

    Refit the shutter the other way round in the winter position – the arrow points to the symbol r – the shutter must snap into position. The arrowhead (1) is visible in the winter position. Install the shroud – see "Shroud". MS 261 C-M...

  • Page 31: Electric Handle Heating

    Engine can be started by operating the rewind starter. Run position F – a hot engine is started in this position or the engine runs in this position. Start position } – a cold engine is started in this position. MS 261 C-M...
  • Page 32 If the engine is new or after a long out-of-service period or if the tank has been run dry (engine stops), it may be necessary to pull the starter rope several times to prime the fuel system. MS 261 C-M...
  • Page 33 Always disengage chain brake before the Master Control lever to start accelerating the engine. High revs with position } and repeat starting the chain brake engaged (chain locked) procedure. will quickly damage the clutch and chain brake. MS 261 C-M...

  • Page 34: Operating Instructions

    Remove the spark plug – see hand. Retension if necessary – see "Spark Plug". "Tensioning the Saw Chain". Dry the spark plug. MS 261 C-M...

  • Page 35: Oil Quantity Control

    Always slacken off the chain again after finishing work. The chain contracts as it NOTICE cools down. If it is not slackened off, it can damage the crankshaft and The chain must always be wetted with a bearings. film of lubricant. MS 261 C-M...

  • Page 36: Taking Care Of The Guide Bar

    Close the twist locks by turning (special accessory) – in the area them a 1/4 turn clockwise. with the greatest wear Chain type Chain pitch Minimum groove depth Picco 1/4“ P 4.0 mm Rapid 1/4“ 4.0 mm MS 261 C-M...

  • Page 37: Air Filter System

    Less Cleaning the Air Filter suitable for very dusty conditions. Knock out the filter. STIHL filters have a long service life in Spray outside of filter with STIHL dry operating conditions. special cleaner or soapy water.

  • Page 38: M-Tronic

    Allow engine to run for at least 30 to If the engine repeatedly stops: saw”. max. 60 seconds (A) without Engage chain brake. If the STIHL M-Tronic version is 3.0 depressing the throttle trigger. or higher: “Calibrating the chain Do not use the chain saw. Consult a saw”.

  • Page 39: Spark Arresting Screen In Muffler

    Let the muffler cool down operating hours – or sooner if the electrodes are badly eroded. Install only suppressed spark plugs of the type approved by STIHL – see "Specifications". Removing the Spark Plug Remove the shroud – see "Shroud".

  • Page 40: Storing The Machine

    Installing the spark plug If you use a biological chain and bar lubricant, e.g. STIHL BioPlus, completely fill the chain oil tank. Store the machine in a dry, high or locked location, out of the reach of children and other unauthorized persons.

  • Page 41: Checking And Replacing The Chain Sprocket

    (5) including needle cage (6) from the crankshaft – with STIHL recommends use of original QuickStop Super chain brake, press STIHL chain sprockets in order to throttle trigger lockout beforehand ensure optimal functioning of the chain brake. Install spur chain sprocket / rim sprocket...

  • Page 42: Maintaining And Sharpening The Saw Chain

    The chain pitch marking (a) is embossed Sharpening angle increased vibration load, unsatisfactory in the area of the depth gauge of each STIHL saw chains are sharpened with a cutting results and increased wear. cutter. 30° sharpening angle. Ripping chains, Clean the saw chain which are sharpened with a 10°...
  • Page 43 90° electric sharpener Depth gauge setting STIHL filing gauge (special accessory, see table "Sharpening tools") – a universal tool for checking sharpening and side plate angles, depth gauge Guide the file: horizontally (at a right...
  • Page 44 – if the depth gauge gauge protrudes past the file gauge, the depth gauge must be reworked MS 261 C-M...
  • Page 45 0814 252 3356 5605 007 1029 0.404 (10.26) 5.5 (7/32) 5605 772 5506 5605 750 4330 1106 893 4000 0814 252 3356 5605 007 1030 consisting of file holder with round file, taper square file and file gauge MS 261 C-M...

  • Page 46: Maintenance And Care

    Fuel tank Clean Chain oil tank Clean Chain lubrication Check Inspect, also check sharpness Saw chain Check chain tension. Sharpen Check (wear, damage) Clean and turn over Guide bar Deburr Replace Chain sprocket Check Clean Air filter Replace MS 261 C-M...
  • Page 47 Have cleaned or replaced by dealer Check Chain catcher Replace Safety labels Replace STIHL recommends an authorized STIHL servicing dealer. Firmly tighten down the cylinder base screws of professional saws (3.4 kW or more) after 10 to 20 hours of operation. MS 261 C-M...

  • Page 48: Main Parts

    19 Front handle (handlebar) 20 Spark plug boot 21 Starter grip 22 Fuel filler cap 23 Master control lever 24 Throttle trigger 25 Throttle trigger lockout 26 Rear handle 27 Rear hand guard Serial number Depending on model MS 261 C-M...

  • Page 49: Specifications

    Vibration Directive 2002/44/EC visit Engine MS 261 C-M: 4.9 kg www.stihl.com/vib. MS 261 C-M with quick chain adjuster: 5.1 kg Sound pressure level L to ISO 22868 STIHL single cylinder two-stroke engine MS 261 C-M with handle and...

  • Page 50: Ordering Spare Parts

    When repairing the machine, only use replacement parts which have been Serial number approved by STIHL for this power tool or are technically identical. Only use high- quality replacement parts in order to Guide bar part number avoid the risk of accidents and damage to the machine.

  • Page 51: Disposal

    ANDREAS STIHL AG & Co. KG Series: MS 261 C-M Produktzulassung MS 261 C-MVW STIHL products must not be thrown in The year of manufacture and serial MS 261 C-BM the garbage can. Take the product, number are applied to the product.
  • Page 52 0458-153-8321-B www.stihl.com *04581538321B* 0458-153-8321-B...

This manual is also suitable for:

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