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

  • Page 3: Table Of Contents

    Checking and Replacing the Chain Sprocket Maintaining and Sharpening the Saw Chain Maintenance and Care Minimize Wear and Avoid Damage This instruction manual is protected by copyright. All rights reserved, especially the rights to reproduce, translate and process with electronic systems. MS 661 C-M...

  • Page 4: Guide To Using This Manual

    Minors should never be allowed to use Tension saw chain STIHL's philosophy is to continually the machine – except for young trainees improve all of its products. For this over the age of 16 when working under reason we may modify the design, supervision.
  • Page 5 Only use tools, guide bars, chains, chain machine cannot be used without helmet, etc.). sprockets or accessories that have been authorization. approved by STIHL for this machine or Wear safety boots – with The user is responsible for accidents or which are technically equivalent. cut-retardant material, risks involving third parties or their Contact a servicing dealer if in doubt.
  • Page 6 Move at least 3 meters away from the spilled or is leaking – place at which the machine was refueled Fatal burns may result! and never start the machine in enclosed spaces. MS 661 C-M...
  • Page 7 Have the machine among other things – risk of accident! ditches – danger of stumbling! repaired by a STIHL servicing dealer if Dust (e. g., sawdust), fumes and smoke Do not work alone – keep within calling...
  • Page 8 – e. g., unintentionally touches another limb during limbing the saw chain at the nose of the – guide bar is pinched in the cut MS 661 C-M...
  • Page 9 Use aids such as and engage the bumper spike – then Be careful when cutting shattered wood winches or draglines. saw. – risk of injury from slivers being caught and thrown in your direction! MS 661 C-M...
  • Page 10 Plan escape routes on slopes – parallel to the slope The distance to the next worksite must When getting out of the way, watch – be at least 2 1/2 tree lengths. out for falling branches and the crown area MS 661 C-M...
  • Page 11 Making a felling notch The felling notch (C) determines the direction of fall. STIHL recommends the following procedure: With long-fibered wood, sapwood cuts Make a horizontal cut – in doing so, prevent the sapwood from splintering check the direction of fall with the when felling the trunk –...
  • Page 12 = bridge Insert wedges in the felling cut in time – use only wedges made of wood, light metal or plastic – no steel wedges. Steel wedges damage the saw chain and can cause kickback. MS 661 C-M...
  • Page 13 – for felling leaners – twice the length of the guide bar for relieving cuts during bucking – if a piece of heartwood remains – for DIY projects – uncut on large diameter trunks MS 661 C-M...
  • Page 14 – risk of pull-in – position the guidebar at as shallow an angle as possible – be especially careful – increased risk of kickback! Make relieving cut in the compression side (1) Make bucking cut in the tension side (2) MS 661 C-M...
  • Page 15 Contact a servicing dealer if in doubt. – depends on several factors. to retension the chain STIHL recommends the use of genuine – The period of usage is prolonged by: STIHL spare parts. Such parts have to change chains –...

  • Page 16: Cutting Attachment

    English Chain Scabbard Fitting Chain Scabbard Extension Cutting Attachment STIHL is the only manufacturer in the industry to produce its own chain saws, guide bars, saw chains and chain sprockets. A cutting attachment consists of the saw chain, guide bar and chain sprocket.

  • Page 17: Mounting The Bar And Chain

    Put on protective gloves – risk of injury Turn screw (1) to the left until the by the sharp cutters tensioner slide (2) butts against the Fit the chain starting at the nose of left end of the housing slot the guide bar MS 661 C-M...

  • Page 18: Tensioning The Chain

    Use a screwdriver to turn the still be possible to pull the chain STIHL MotoMix is blended with STIHL tensioning screw (1) clockwise until along the bar by hand. HP Ultra two-stroke engine oil for the chain fits snugly against the If necessary, retension the chain.
  • Page 19 Use only high-quality two-stroke engine protected against light and sunlight. oil – ideally STIHL HP, HP Super or Fuel mixture ages – mix only as much as HP Ultra two-stroke engine oil, as they needed for a few weeks.

  • Page 20: Fueling

    Raise the grip until it is upright. 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 up with fuel.

  • Page 21: 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 22: Filling Chain Oil Tank

    Thoroughly clean the filler cap and the area around it to ensure that no STIHL recommends use of the STIHL dirt falls into the tank filling system for chain oil (special The saw chain must always throw off a accessory).

  • Page 23: 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 24: Winter Operation

    At temperatures above +20 °C: always return the slide to the summer position – NOTICE otherwise risk of engine malfunction due to overheating! If engine trouble occurs, first return the slide from winter to summer position. MS 661 C-M...

  • Page 25: Electric Handle Heating

    When the starter is actuated, the engine may start at any time. Run F – engine is running or can start Start } – this position is for starting the engine MS 661 C-M...
  • Page 26 (engine stalled out), with machines without an additional manual fuel pump, it may be necessary to pull the starter rope several times - to prime the fuel line. MS 661 C-M...
  • Page 27 The chain brake is released - the chain saw is ready for use. NOTICE Open the throttle only when the chain brake is off. Increased engine speeds with the chain brake on (saw chain is stationary) will quickly damage the clutch and chain brake. MS 661 C-M...

  • Page 28: Operating Instructions

    Retension if necessary – see Remove the spark plug - see "Spark "Tensioning the Saw Chain". plug" Dry the spark plug MS 661 C-M...

  • Page 29: Oil Quantity Control

    The chain contracts as it cools down. If it is not slackened off, it To reduce oil flow – can damage the crankshaft and turn the adjusting screw bearings. counterclockwise NOTICE The saw chain must always be coated with oil. MS 661 C-M...

  • Page 30: Taking Care Of The Guide Bar

    (special accessory) – in the area half empty with the greatest wear NOTICE If an increased oil flow is no longer required, reset the adjusting screw to the standard setting. MS 661 C-M...

  • Page 31: Remove Air Filter

    Thorough filter cleaning Manual carburetor adjustments are no longer required – the carburetor does Wash the filter in STIHL special- not have any adjusting screws. purpose cleaner (special accessory) or a clean, non- Automatic adjustment flammable cleaning liquid (e.g.,...

  • Page 32: Spark Arresting Screen In Muffler

    – or sooner if the the muffler electrodes are badly eroded. Install Let the muffler cool down only suppressed spark plugs of the type approved by STIHL – see "Specifications". Clean dirty spark plug. Check electrode gap (A) and Removing the spark plug readjust if necessary –...

  • Page 33: Rewind Starter

    Have a damaged starter rope replaced Thoroughly clean the machine – pay by your dealer before it breaks special attention to the cylinder fins completely. STIHL recommends that and air filter. you have servicing and repair work If you use a biological chain and bar carried out exclusively by an authorized lubricant, e.g.

  • Page 34: 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 35: 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 36 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 37 – if the depth gauge gauge protrudes past the file gauge, the depth gauge must be reworked MS 661 C-M...
  • Page 38 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 661 C-M...

  • Page 39: Maintenance And Care

    Lubricating oil tank clean Chain lubrication check check, pay attention to 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 661 C-M...
  • Page 40 Safety information labels replace STIHL recommends STIHL servicing dealers see "chain brake" During initial use of chain saws (with a power output of 3.4 kW or more), tighten the cylinder block screws after 10 to 20 hours of operation...

  • Page 41: Minimize Wear And Avoid Damage

    English STIHL recommends that maintenance Minimize Wear and Avoid and repair work be carried out only by Damage authorized STIHL dealers. STIHL dealers receive regular training and are Compliance with the specifications of supplied with technical information. this Instruction Manual will avoid...

  • Page 42: Main Parts

    14 Front hand guard 15 Front handle (handlebar) 16 Decompression valve 17 Starter grip 18 Fuel filler cap 19 Master control lever 20 Throttle trigger 21 Throttle trigger lockout 22 Rear handle 23 Rear hand guard Machine number MS 661 C-M...

  • Page 43: Specifications

    Rapid Super (36 RS) Type 3621 Engine MS 661 C-M 7.4 kg Rapid Super 3 (36 RS3) Type 3626 MS 661 C-M with handle Pitch: 3/8" (9.32 mm) heating 7.5 kg STIHL single cylinder two-stroke engine Drive link gauge: 1.6 mm...

  • Page 44: Special Accessories

    Registration, Evaluation, STIHL lubricating grease – Authorisation and Restriction of The guide bar and saw chain are subject STIHL filler nozzle for fuel – helps – Chemical substances. to normal wear and tear. When avoid spills and overfilling during...

  • Page 45: Maintenance And Repairs

    2000/14/EC and has been approved by STIHL for this power tool or approved disposal site for environment- developed and built in compliance with are technically identical. Only use high- friendly recycling.

  • Page 46: Quality Certification

    All STIHL products comply with the highest quality standards. An independent organization has certified that all products manufactured by STIHL meet the strict requirements of the ISO 9001 standard for quality management systems in terms of product development, materials purchasing, production, assembly, documentation and customer service.
  • Page 48 0458-759-0121-A englisch www.stihl.com *04587590121A* 0458-759-0121-A...

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