Stihl BT 131 Instruction Manual
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Stihl BT 131 Instruction Manual

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BT 131
2 - 20
Instruction Manual

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Summary of Contents for Stihl BT 131

  • Page 1 BT 131 2 - 20 Instruction Manual...

  • Page 2: Table Of Contents

    Operating Instructions.......13 Engineering improvements Releasing a Trapped Auger...... 13 Replacing the Air Filter......14 STIHL's philosophy is to continually improve all Adjusting the Carburetor......14 of its products. For this reason we may modify Spark Plug..........14 the design, engineering and appearance of our Engine Running Behavior......
  • Page 3 Transporting the machine Only use augers or accessories which have been approved by STIHL for this machine or which are Always stop the engine. technically equivalent. If you have any questions in this respect, consult your dealer. Use only high Remove the auger before transporting the power tool long distances.
  • Page 4 English 2 Safety Precautions and Working Techniques Refueling – Keep the handles dry and clean – free from oil and dirt – this is important for safe control of Gasoline is highly flammable – keep the machine away from fire or flame – do not spill any fuel –...
  • Page 5 If the drilling tool continues to rotate "Before Starting". when the engine is idling, have the machine checked by your servicing dealer. STIHL recom‐ Check in particular that the fuel system has no mends STIHL dealers. leaks and the safety equipment is fully operative.
  • Page 6 Use only a spark plug of the type approved by factors. STIHL and make sure it is in good condition – The period of usage is prolonged by: see "Specifications". – Hand protection (wearing warm gloves) Inspect the ignition lead (insulation in good con‐...

  • Page 7: Assembling The Unit

    STIHL MotoMix oblong holes in the handle frame ► Fold up the padding STIHL recommends using STIHL MotoMix. This pre-blended fuel is free of benzene and lead, is distinguished by a high octane rating, and always provides the proper mixing ratio.

  • Page 8: Fueling

    5.2.2 Engine oil Fueling If you mix the fuel yourself, use only STIHL two- stroke engine oil or another high-performance engine oil classified as JASO FB, JASO FC, JASO FD, ISO-L-EGB, ISO-L-EGC or ISO-L- EGD.

  • Page 9: Auger Brake

    Filling Up with Fuel Take care not to spill fuel while fueling and do not overfill the tank. STIHL recommends you use the STIHL filler noz‐ zle for fuel (special accessory). ► Fill up with fuel. Closing the Tank Cap ►...

  • Page 10: Fitting The Auger

    3 seconds – the auger must not rotate. If the auger brake fails, have it repaired immedi‐ ately by your dealer – STIHL recommends that this work be performed by a STIHL servicing dealer. Fitting the Auger ►...

  • Page 11: Starting / Stopping The Engine

    9 Starting / Stopping the Engine English Starting / Stopping the switched on – the engine is ready to start. Oper‐ Engine ate the stop switch to switch off the ignition. The ignition is switched on again automatically after Engaging the Auger Brake the engine stops.
  • Page 12 English 9 Starting / Stopping the Engine Cranking 9.4.1 As Soon As the Engine Runs ► Depress throttle trigger lockout and immedi‐ ately blip the throttle trigger – the choke knob moves to the run F position. NOTICE Since the auger brake is still engaged, the engine must be returned to idling speed immedi‐...

  • Page 13: Operating Instructions

    10 Operating Instructions English 10.2 During Operation WARNING After a long period of full throttle operation, allow the engine to run for a short while at idle speed Make sure the carburetor is correctly adjusted. so that engine heat can be dissipated by the flow The auger must not rotate when the engine is of cooling air.

  • Page 14: Replacing The Air Filter

    ► Turn the choke knob to g. eroded. Install only suppressed spark plugs of ► Take out the screws (1). the type approved by STIHL – see "Specifica‐ ► Remove the filter cover (2). tions". ► Clean away loose dirt from around the filter.

  • Page 15: Engine Running Behavior

    Have the muffler checked for contamination (cok‐ ing) by a servicing dealer! STIHL recommends that maintenance and repair work be carried out only by authorized STIHL dealers. ► Clean dirty spark plug. 16 Lubricating the Gearbox ►...

  • Page 16: Storing The Machine

    ► If no grease can be seen on the inside of the ► Start the engine and run it at idling speed until screw plug (1): Screw the tube (2) of STIHL it stops gear lubricant (special accessory) into the filler ►...
  • Page 17 18 Maintenance and Care English The following intervals apply for normal operating conditions. The specified intervals must be short‐ ened accordingly when working for longer than nor‐ mal or under difficult cutting conditions (extensive dust, etc.). Have replaced by serv‐ icing dealer Fuel tank Clean...

  • Page 18: Main Parts

    12 Manual fuel pump 13 Spark plug cover 14 Throttle trigger 15 Auger brake lever # Serial Number 20 Specifications 20.1 Engine STIHL single cylinder four-stroke engine with mixture lubrication Displacement: 36.3cm Cylinder bore: 43 mm Piston stroke: 25 mm Engine power to ISO 8893: 1.4 kW (1.9 hp) at...

  • Page 19: Maintenance And Repairs

    20.7.2 Sound power level L in accordance with ISO 3744 When repairing the machine, only use replace‐ ment parts which have been approved by STIHL 100 dB(A) for this power tool or are technically identical. 20.7.3 Vibration level a in accordance...

  • Page 20: Ec Declaration Of Conformity

    English 23 EC Declaration of Conformity Director Product Certification & Regulatory Affairs ► Take STIHL products including packaging to a suitable collection point for recycling in accord‐ ance with local regulations. ► Do not dispose with domestic waste. 23 EC Declaration of Con‐...
  • Page 21 23 EC Declaration of Conformity English 0458-529-8321-B...
  • Page 22 English 23 EC Declaration of Conformity 0458-529-8321-B...
  • Page 23 23 EC Declaration of Conformity English 0458-529-8321-B...
  • Page 24 *04585298321B* 0458-529-8321-B...

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