Stihl BT 131 Instruction Manual
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Stihl BT 131 Instruction Manual

Stihl BT 131 Instruction Manual

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STIHL BT 131
Instruction Manual

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Summary of Contents for Stihl BT 131

  • Page 1 STIHL BT 131 Instruction Manual...

  • Page 3: Table Of Contents

    English Contents Dear Customer, Guide to Using this Manual Safety Precautions and Working Thank you for choosing a quality engineered STIHL product. Techniques Assembling the Unit It has been built using modern Adjusting the Throttle Cable production techniques and comprehensive quality assurance.

  • Page 4: Guide To Using This Manual

    English Engineering improvements Guide to Using this Manual Safety Precautions and Working Techniques STIHL's philosophy is to continually improve all of its products. For this Special safety precau- Pictograms reason we may modify the design, tions must be observed engineering and appearance of our...
  • Page 5 Only use augers or accessories which wear a scarf, necktie or jewelry. day as specified by national and/or have been approved by STIHL for this regional or local regulations. Tie up and confine long machine or which are technically...
  • Page 6 English STIHL can supply a comprehensive Check the choke lever, throttle After fueling, tighten – range of personal protective equipment. trigger and throttle trigger lockout down the screw-type fuel for smooth action - throttle trigger cap as securely as must return automatically to idle Transporting the machine possible.
  • Page 7 This reduces the risk of idling, have the machine checked by serious or fatal injury from breathing your servicing dealer. STIHL toxic fumes. recommends STIHL dealers. Stop work immediately if you start...
  • Page 8 Hand protection (wearing warm – servicing dealer. Avoid contact with lines gloves) carrying electrical cur- STIHL recommends the use of original Work breaks – rent – Risk of electrical STIHL replacement parts. They are shock! specifically designed to match your...

  • Page 9: Assembling The Unit

    Use only a spark plug of the type Fit the padding Assembling the Unit approved by STIHL and make sure it is in good condition – see "Specifications". Inspect the ignition lead (insulation in Fitting activating lever for auger brake good condition, secure connection).

  • Page 10: Adjusting The Throttle Cable

    Engine Oil assembled. gasoline vapor. If you mix the fuel yourself, use only STIHL two-stroke engine oil or another STIHL MotoMix high-performance engine oil in accordance with JASO FB, JASO FC, JASO FD, ISO-L-EGB, ISO-L-EGC or STIHL recommends the use of STIHL ISO-L-EGD.

  • Page 11: Fueling

    Closing the Tank Cap can quickly make the fuel mix unusable. STIHL MotoMix may be stored for up to 2 years without any problems. Thoroughly shake the mixture in the canister before fueling your machine.

  • Page 12: Auger Brake

    English Disengaging the Auger Brake If the auger brake fails, have it repaired Auger Brake immediately by your dealer – STIHL recommends that this work be performed by a STIHL servicing dealer. Engaging the Auger Brake Move the activating lever to...

  • Page 13: Fitting The Auger

    Spring clip on the retaining pin must fit snugly around the auger's shank. Press the manual fuel pump bulb (9) at least five times – even if the bulb is already filled with fuel. Throttle trigger lockout Throttle trigger BT 131...
  • Page 14 – it springs Left hand on the handle frame – do back to the run position. not touch the throttle trigger or lockout lever – your thumb should be under the fan housing. BT 131...

  • Page 15: Operating Instructions

    Set the choke knob to suit the from sources of ignition, until you need it engine temperature. again. For longer out-of-service periods – see "Storing the Machine". Now start the engine. BT 131...

  • Page 16: Releasing A Trapped Auger

    Replace dirty or damaged filter. the activating lever to position A. Replace any damaged parts. Rotate the whole machine counterclockwise to unwind the auger from the ground. After releasing the trapped auger, check operation of the auger brake – see “Auger Brake”. BT 131...

  • Page 17: Adjusting The Carburetor

    – or sooner if the Adjusting Idle Speed electrodes are badly eroded. Install 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 18: Engine Running Behavior

    Remove the screw plug (1). If no grease can be seen on the inside of the screw plug (1): Screw the tube (2) of STIHL gear lubricant (special accessory) into the filler hole. Squeeze about 5 - 10 g (1/5 - 2/5 oz) grease into the gearbox.

  • Page 19: Storing The Machine

    Run the engine until the carburetor is dry – this helps prevent the carburetor diaphragms sticking together. Thoroughly clean the machine. Store the machine in a dry and secure location Keep out of the reach of children and other unauthorized persons. BT 131...

  • Page 20: Maintenance And Care

    Replace after every 100 hours of operation Visual examination Cooling air intakes Clean Cylinder fins Have cleaned by dealer If power is low or cranking effort very Valve clearance high, have valve clearance checked and, if necessary, adjusted by dealer BT 131...
  • Page 21 Have replaced by servicing dealer check Gearbox lubrication top up Drilling spindle Clean check Drilling tool replace check Auger blade Turn over or replace Safety information label replace STIHL recommends STIHL dealers Only if there is a noticeable loss of engine power BT 131...

  • Page 22: Minimize Wear And Avoid Damage

    English servicing dealer. STIHL dealers are Spark plug – Minimize Wear and Avoid regularly given the opportunity to attend Damping elements of anti-vibration Damage – training courses and are supplied with system the necessary technical information. Observing the instructions in this manual...

  • Page 23: Main Parts

    Muffler with spark arresting screen Drilling spindle 10 Hip padding 11 Choke knob 12 Manual fuel pump 13 Spark plug cover 14 Throttle trigger 15 Auger brake lever Serial Number Spark arresting screen not fitted on all markets BT 131...

  • Page 24: Specifications

    Left handle: 1.7 m/s Lubrication: STIHL gear Right handle: 2.0 m/s lubricant for STIHL single cylinder four-stroke engine The K-factor in accordance with brushcutters with mixture lubrication Directive 2006/42/EC is 2.0 dB(A) for the sound pressure level and sound Weight Displacement: 36.3 cc...

  • Page 25: Maintenance And Repairs

    Take the product, Displacement: 36.3 replacement parts which have been accessories and packaging to an approved by STIHL for this power tool or approved disposal site for environment- conforms to the relevant provisions of are technically identical. Only use high- friendly recycling.
  • Page 26 English Done at Waiblingen, 03.02.2020 ANDREAS STIHL AG & Co. KG Dr. Jürgen Hoffmann Head of Product Data, Regulations and Licensing BT 131...
  • Page 28 0458-529-0121-A englisch www.stihl.com *04585290121A* 0458-529-0121-A...

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