Stihl BR 450 C Instruction Manual
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Stihl BR 450 C Instruction Manual

Stihl BR 450 C Instruction Manual

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STIHL BR 450, 450 C
Instruction Manual

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  • Page 1 STIHL BR 450, 450 C Instruction Manual...

  • Page 3: Table Of Contents

    Minimize Wear and Avoid Damage Main Parts Specifications Maintenance and Repairs Disposal EC Declaration of Conformity This instruction manual is protected by copyright. All rights reserved, especially the rights to reproduce, translate and process with electronic systems. BR 450, BR 450 C...

  • Page 4: Guide To Using This Manual

    Do not lend or rent your power tool your machine. without the instruction manual. Be sure that anyone using your power tool Fuel tank; fuel mixture of understands the information contained gasoline and engine oil in this manual. BR 450, BR 450 C...
  • Page 5 STIHL or are technically identical. If you machine. Tie up and con- Intended Use have any questions in this respect, fine long hair (e.g.
  • Page 6 – refer blower housing is damaged, consult Gasoline is an extremely to appropriate chapters in the instruction your dealer – STIHL recommends you flammable fuel. Keep manual. contact a STIHL servicing dealer. clear of naked flames. Do Check the fuel system for leaks, not spill any fuel –...
  • Page 7 – risk of your ability to hear warnings (shouts, stumbling. If dust levels are very high, always wear alarms, etc.) is restricted. a suitable respirator. BR 450, BR 450 C...
  • Page 8 – not early in advice. Use only a spark plug of the type the morning, late at night or during approved by STIHL and make sure it is midday rest periods when people Maintenance and Repairs in good condition – see "Specifications".

  • Page 9: Assembling The Unit

    Push the hose clamp (1) onto the pleated hose (2). Line up the positioning marks on the hose clamp (1) and elbow (3) – the screw eye faces down. Secure the hose clamp (1) with the screw (4). BR 450, BR 450 C...
  • Page 10 (3) are covered. Pull the nozzle (1) off the blower Loosen the union nut (1). tube (2). Pull the blower tube (1) out to the required length. Tighten the union nut (1). BR 450, BR 450 C...

  • Page 11: Adjusting The Throttle Cable

    Lift the tabs of the sliding adjusters. Adjust the harness so that the backplate fits snugly and securely Secure the blower tube to the against your back. handle on the backplate with the hook and loop fastener. BR 450, BR 450 C...

  • Page 12: Fuel

    Use only high-quality two-stroke engine STIHL MotoMix uses STIHL HP Ultra location protected from light and the sun. oil – preferably STIHL HP, HP Super or two-stroke engine oil for an extra long Fuel mix ages – only mix sufficient fuel HP Ultra, which are specially formulated engine life.

  • Page 13: Fueling

    Fueling fluid properly in accordance with local regulations and environmental Take care not to spill fuel while fueling requirements. and do not overfill the tank. STIHL recommends you use the STIHL filler nozzle (special accessory). Preparations Closing screw-type tank cap Place the cap in the opening.

  • Page 14: Information Before You Start

    Warm engine (warm start) Setting lever Throttle trigger Starter switch (BR 450 C only) Engine stop 0 – ignition interrupted, engine stops. The setting lever does not remain in ths position, it springs back. Normal run position F – engine runs or is Move the setting lever to F ready to start.
  • Page 15 English Cranking Electric start (BR 450 C) Make sure you have a firm footing: Hold the unit with your left hand on The power tool is equipped with the the carrying handle and grip the STIHL electric starter for convenient control handle with your right hand.
  • Page 16 Move the choke knob to c and continue cranking until the engine runs. If the engine does not start Check that all settings are correct. Check that there is fuel in the tank and refuel if necessary. BR 450, BR 450 C...

  • Page 17: Operating Instructions

    For longer out-of-service periods – see "Storing the Machine". Turn the choke knob to c . Loosen the screws (1). Remove the filter cover (2). BR 450, BR 450 C...

  • Page 18: Adjusting The Carburetor

    After returning from high altitude, reset runs smoothly. the carburetor to the standard setting. If the setting is too lean there is a risk of engine damage due to insufficient lubrication and overheating. BR 450, BR 450 C...

  • Page 19: 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 "Specifications". Clean dirty spark plug. Check electrode gap (A) and Removing the spark plug readjust if necessary –...

  • Page 20: Engine Running Behavior

    Thoroughly clean the machine – pay special attention to the cylinder fins and air filter. Store the machine in a dry, high or locked location, – out of the reach of children and other unauthorized persons. BR 450, BR 450 C...

  • Page 21: Maintenance And Care

    Readjust idle Readjust electrode gap Spark plug Replace after every 100 operating hours Visual inspection Cooling inlet Clean All accessible screws and nuts (not adjust- Retighten ing screws) Check Anti-vibration elements Have replaced by servicing dealer BR 450, BR 450 C...
  • Page 22 (very dusty work area, etc.), shorten the specified intervals accordingly. Check Blower air intake screen Clean Throttle cable Adjust Safety labels Replace STIHL recommends an authorized STIHL servicing dealer. BR 450, BR 450 C...

  • Page 23: Minimize Wear And Avoid Damage

    Damping elements of anti-vibration – servicing dealer. system STIHL recommends that you have servicing and repair work carried out exclusively by an authorized STIHL BR 450, BR 450 C...

  • Page 24: Main Parts

    18 Manual fuel pump 19 Choke knob 20 Starter grip 21 Tank cap 22 Fuel tank 23 Spark plug boot 24 Muffler 25 Spacer Serial number BR 450 C only Not in all versions, country-specific BR 450, BR 450 C...

  • Page 25: Specifications

    Air velocity: 83 m/s Handle, Air flow rate: 1090 m right Maximum air velocity: 99 m/s BR 450: 2.5 m/s Maximum air flow rate 1430 m BR 450 C: 2.5 m/s without blower tube assembly: BR 450, BR 450 C...

  • Page 26: Maintenance And Repairs

    Displacement: 63.3 cc 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 27 English The year of manufacture and serial number are applied to the product. Done at Waiblingen, 28.10.2016 ANDREAS STIHL AG & Co. KG Thomas Elsner Director Product Management and Services BR 450, BR 450 C...
  • Page 28 0458-391-0121-A englisch www.stihl.com *04583910121A* 0458-391-0121-A...

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Br 450

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