Stihl MS 171 Instruction Manual
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Stihl MS 171 Instruction Manual

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MS 171, 181, 211
2 - 45
Instruction Manual

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Summary of Contents for Stihl MS 171

  • Page 1 MS 171, 181, 211 2 - 45 Instruction Manual...

  • Page 2: Table Of Contents

    Mounting the Bar and Chain (quick chain Guide to Using this Manual tensioner)..........16 Tensioning the Saw Chain (side chain ten‐ This Instruction Manual refers to a STIHL chain sioner)............18 saw, also called a machine in this Instruction Tensioning the Saw Chain (quick chain ten‐...

  • Page 3: Safety Precautions

    To reduce the risk of accidents or injury, put off Engineering improvements the work in poor weather conditions (rain, snow, STIHL's philosophy is to continually improve all ice, wind). of its products. For this reason we may modify Persons with pacemakers only: The ignition sys‐...
  • Page 4 (e.g. leather). match your model and meet your performance requirements. Refuelling STIHL can supply a comprehensive range of per‐ sonal protective equipment. Gasoline is an extremely flammable fuel – keep clear of naked flames and Transporting fire –...
  • Page 5 2 Safety Precautions English Before Starting Work 2.10 During operation Check that your saw is properly assembled and Ensure you always have a firm and safe footing. in good condition – refer to appropriate chapters Take special care when the bark is wet – danger in the instruction manual.
  • Page 6 Have the machine 2.14 Maintenance and repairs repaired by a STIHL servicing dealer if the saw chain still continues to move during idling. Always switch off the engine before any repair, The chain saw produces poisonous...

  • Page 7: Reactive Forces

    – risk of fire due to the fuel. Check fuel cap regularly for tightness. Use only spark plugs that are in perfect condition and have been approved by STIHL – see "Speci‐ fications". Check ignition lead (insulation in good condition, secure connection).

  • Page 8: Working Techniques

    English 4 Working Techniques object, e.g. when another limb is touched acci‐ the chain pulls the saw forward – to reduce this dentally during limbing. risk, always engage the spiked bumper securely – when the chain at the nose of the guide bar is in the tree or limb.
  • Page 9 4 Working Techniques English Country-specific legislation on felling technique chain saw in the vicinity of easily combustible must be complied with during felling work. materials, dry plants or scrub. It is mandatory that you ask the responsible forestry office about Sawing the current fire hazard.
  • Page 10 English 4 Working Techniques Preparing for felling erwise the cutting attachment may stick in the cut or kick back – risk of injury! Check that there are no other persons in the fell‐ ing area – other than helpers. Make sure no-one is endangered by the falling tree –...
  • Page 11 4 Working Techniques English – Clear escape paths, eliminate obstacles Determine direction of fall with gunning sight on – Put down tools and equipment at a safe dis‐ cover and fan housing tance – but not on the escape paths –...
  • Page 12 English 4 Working Techniques Sapwood cuts – With rotten trunks, leave a wider strip Plunge cutting – For relieving cuts during shortening – For wood carving Sapwood cuts in long-fibered softwood help pre‐ vent sapwood splintering when the tree falls. Make cuts at both sides of the trunk at same ►...
  • Page 13 – reposition logue to felling cut (E)). the chainsaw as little as possible Contact the STIHL dealer for the selection of the ► Make the felling cut up to the hinge (1) felling wedge (suitable length, width and height).
  • Page 14 English 4 Working Techniques ► Make the felling cut up to the stabilizing ► Make the felling cut towards the holding strap strap (3) – Do not cut into the stabilizing strap – Cut horizontally – Do not cut into the holding strap. The felling cut must be continued on the oppo‐...

  • Page 15: Cutting Attachment

    5 Cutting Attachment English Chain Scabbard ► Tip of the guide bar must penetrate the wood before the holding strap (4) – guide the chain‐ saw absolutely horizontally and swivel as widely as possible ► Make the felling cut up to the hinge (5) –...

  • Page 16: Mounting The Bar And Chain (Quick Chain Tensioner)

    English 7 Mounting the Bar and Chain (quick chain tensioner) ► Turn the screw (1) counterclockwise until the ► Turn the tensioning screw (4) clockwise until tensioner slide (2) butts against the left end of there is very little chain sag on the underside the housing slot.
  • Page 17 7 Mounting the Bar and Chain (quick chain tensioner) English Fitting the saw chain ► Remove screw (2) ► Position tensioning gear (1) and guide bar (3) relative to one another ► Insert and tighten screw (2) WARNING Releasing the chain brake Put on protective gloves –...

  • Page 18: Tensioning The Saw Chain (Side Chain Tensioner)

    English 8 Tensioning the Saw Chain (side chain tensioner) Tensioning the Saw Chain (side chain tensioner) Retensioning during cutting work: ► Switch off the engine. ► Loosen the nut. ► Hold the bar nose up. ► Use a screwdriver to turn the tensioning screw (1) clockwise until the chain fits snugly against the underside of the bar.

  • Page 19: Checking Chain Tension

    11.2.2 Engine oil A new chain has to be retensioned more often If you mix the fuel yourself, use only STIHL two- than one that has been in use for some time. stroke engine oil or another high-performance ► Check chain tension frequently – see chapter engine oil classified as JASO FB, JASO FC, on "Operating Instructions".

  • Page 20: Fueling

    STIHL MotoMix however can be stored for up to 5 years without any problems. ► Shake the canister containing the fuel mixture thoroughly before refueling...
  • Page 21 Checking the lock 12.3.2 Filling with fuel Take care not to spill fuel while fueling and do not overfill the tank. STIHL recommends using the STIHL filling sys‐ tem for fuel (special accessory). ► Fill with fuel 12.3.3 Closing – The lug on the bracket must engage entirely in...
  • Page 22 ► Remove the filler cap 12.4.2 Filling with fuel Take care not to spill fuel while fueling and do not overfill the tank. STIHL recommends using the STIHL filling sys‐ tem for fuel (special accessory). ► Fill with fuel 12.4.3 Closing ►...

  • Page 23: Chain Lubricant

    "Closing" 13 Chain Lubricant For automatic and reliable lubrication of the chain and guide bar – use only an environmen‐ tally compatible quality chain and bar lubricant. Rapidly biodegradable STIHL BioPlus is recom‐ mended. Filler cap is locked 0458-533-0121-E...

  • Page 24: Filling Chain Oil Tank

    English 14 Filling Chain Oil Tank STIHL recommends you use the STIHL filler noz‐ NOTICE zle for chain oil (special accessory). ► Close the filler cap. Biological chain oil must be resistant to aging (e.g. STIHL BioPlus), since it will otherwise There must still be a small amount of oil in the oil quickly turn to resin.

  • Page 25: Winter Operation

    STIHL recom‐ – when idling mends that maintenance and repair work be car‐ ried out only by authorised STIHL dealers. The Press the hand guard towards the nose of the following intervals must be complied with:...

  • Page 26: Starting / Stopping The Engine

    English 18 Starting / Stopping the Engine 18 Starting / Stopping the winter operation summer operation Engine ► Fit the shroud – see "Shroud" 18.1 Positions of the master control Heated air is now drawn in from around the cylin‐ lever der and circulates around the carburetor –...
  • Page 27 18 Starting / Stopping the Engine English 18.4.1 On the ground Simultaneously pressing the throttle trigger lock‐ out and blipping the throttle trigger causes the master control lever to jump from the warm start n position to the operating position F. To switch off the engine, set the master control lever to Stop 0.
  • Page 28 English 18 Starting / Stopping the Engine 18.4.2 Between the knees or thighs ► with the right hand, pull the starter grip slowly until you feel it engage – and then give it a brisk strong pull – simultaneously press down on the handlebar –...
  • Page 29 18 Starting / Stopping the Engine English 18.6.1 Versions with fuel pump ► Simultaneously press the throttle trigger lock‐ out (2) and throttle trigger – set the master control lever (3): Position choke shutter closed l – if engine is cold (even if the engine has stalled during opening of throttle after starting) Position starting acceleration n –...

  • Page 30: Operating Instructions

    English 19 Operating Instructions ► Set the master control lever to starting accel‐ eration n – even if the engine is cold ► Restart the engine 19 Operating Instructions 19.1 During the break-in period A factory new machine should not be run at high revs (full throttle off load) for the first three tank fillings.

  • Page 31: Taking Care Of The Guide Bar

    20 Taking Care of the Guide Bar English ► Measure the groove depth – with the scale on NOTICE the filing gauge (special accessory) – in the area used most for cutting The chain contracts as it cools down. If it is not Chain type Chain pitch Minimum...

  • Page 32: Cleaning The Air Filter

    One-piece fleece filter with 24 Adjusting the Carburetor sealing lip (MS 181, MS 211) 24.1 General Information Bottom illustration, special accessory on MS 171. The carburetor comes from the factory with a 22.3 One-piece fabric filter (special standard setting. accessory) This setting provides an optimum fuel-air mixture under most operating conditions.

  • Page 33: Spark Plug

    ► Fit a new spark plug after about 100 operating hours – or sooner if the electrodes are badly eroded. Install only suppressed spark plugs of the type approved by STIHL – see "Specifica‐ tions". 25.1 Removing the spark plug 24.4.1...

  • Page 34: Engine Running Behavior

    ► Thoroughly clean the machine - pay special attention to the cylinder fins and air filter Possible causes are: ► When using biological chain oil (e.g. STIHL – Too much oil in fuel mix. BioPlus), fill the lubricant oil tank –...

  • Page 35: Maintaining And Sharpening The Saw Chain

    28.2 Install spur chain sprocket / rim sprocket ► Clean crankshaft stub and needle cage and lubricate with STIHL lubricant (special acces‐ sory) ► Slide needle cage onto the crankshaft stub ► After refitting, turn the clutch drum and/or spur chain sprocket approx.
  • Page 36 A Sharpening angle 29.5 To check the angles STIHL saw chains are sharpened with a 30° sharpening angle. Ripping chains, which are sharpened with a 10° sharpening angle, are exceptions. Ripping chains have an X in the des‐...
  • Page 37 29 Maintaining and Sharpening the Saw Chain English 29.7 Depth gauge setting 90° The depth gauge determines the depth to which the cutter penetrates the wood and thus the chip thickness. a Required distance between depth gauge and cutting edge When cutting softwood outside of the frost sea‐...
  • Page 38 English 29 Maintaining and Sharpening the Saw Chain ► Lay the file gauge on the saw chain – the high‐ mark) is lowered at the same time as the depth est point of the depth gauge must be flush with gauge of the cutter.

  • Page 39: Maintenance And Care

    Clean Lubricating oil tank Clean STIHL recommends STIHL servicing dealer When using professional chainsaws (with a power output of 3.4 kW or more) for the first time, tighten the cylinder block screws after 10 to 20 hours of operation 0458-533-0121-E...
  • Page 40 Safety information label replace STIHL recommends STIHL servicing dealer When using professional chainsaws (with a power output of 3.4 kW or more) for the first time, tighten the cylinder block screws after 10 to 20 hours of operation 0458-533-0121-E...

  • Page 41: Minimize Wear And Avoid Damage

    STIHL recommends that you have servicing and repair work carried out exclusively by an author‐ ized STIHL servicing dealer. STIHL dealers are...

  • Page 42: Specifications

    MS 211 C: 4.6 kg 33.1 Engine 33.6 Cutting Attachments for MS 171, MS 171 C, MS 181, STIHL single cylinder two-stroke engine MS 181 C 33.1.1 MS 171, MS 171 C Actual cutting length may be less than the speci‐...

  • Page 43: Ordering Spare Parts

    ISO 22868 The applicable exhaust emission requirements MS 171: 99 dB(A) are fulfilled by the intended usage and mainte‐ MS 171 C: 99 dB(A) nance described in this User Manual. The oper‐ MS 181: 100 dB(A) MS 181 C: 100 dB(A) ating license shall be void if the engine is modi‐...

  • Page 44: Maintenance And Repairs

    MS 181 C-BE MS 211 When repairing the machine, only use replace‐ MS 211 C ment parts which have been approved by STIHL MS 211 C-BE Serial identification number: 1139 for this power tool or are technically identical. Displacement...

  • Page 45: Ukca Declaration Of Conformity

    ANDREAS STIHL AG & Co. KG Product approval EN ISO 11681‑1, EN 55012, EN 61000‑6‑1 The year of construction and the serial number The measured and guaranteed sound power lev‐...
  • Page 46 English 38 UKCA Declaration of Conformity 0458-533-0121-E...
  • Page 47 38 UKCA Declaration of Conformity English 0458-533-0121-E...
  • Page 48 *04585330121E* 0458-533-0121-E...

This manual is also suitable for:

Ms 171 cMs 171 c-beMs 181Ms 181 cMs 181 c-beMs 211 ... Show all

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