STIHL BR 350, 430 Instruction Manual
English Guide to Using this Manual Safety Precautions and Working Techniques Assembling the Unit Adjusting the Throttle Cable Fitting the Harness Fuel Fueling Information Before You Start Starting / Stopping the Engine Operating Instructions Replacing the Air Filter Adjusting the Carburetor Spark Plug Engine Running Behavior Storing the Machine Maintenance and Care Minimize Wear and Avoid Damage Main Parts Specifications Maintenance and Repairs Disposal EC Declaration of Conformity © ANDREAS STIHL AG & Co
English Guide to Using this Manual Pictograms The meanings of the pictograms attached to the machine are explained in this manual. Depending on the model concerned, the following pictograms may be attached to your machine. Fuel tank; fuel mixture of gasoline and engine oil Operate manual fuel pump Engineering improvements STIHL's philosophy is to continually improve all of its products. For this reason we may modify the design, engineering and appearance of our products periodically.
English The use of noise emitting power tools may be restricted to certain times by national or local regulations. Do not operate your power tool if any of its components are damaged. Do not use a pressure washer to clean your power tool. The solid jet of water may damage parts of the power tool. Accessories and replacement parts Only use parts and accessories that are explicitly approved for this power tool by STIHL or are technically identical.
English Transporting in a vehicle: – Properly secure your power tool to prevent turnover, fuel spillage and damage. Fueling Gasoline is an extremely flammable fuel. Keep clear of naked flames. Do not spill any fuel – do not smoke. This reduces the risk of unit vibrations causing the fuel cap to loosen or come off and spill quantities of fuel. Before Starting Check that your power tool is properly assembled and in good condition – refer to appropriate chapters in the instruction manual.
English During Operation In the event of impending danger or in an emergency, switch off the engine immediately by moving the setting lever to STOP or 0. Be particularly alert and cautious when wearing hearing protection because your ability to hear warnings (shouts, alarms, etc.) is restricted. To reduce the risk of fire, do not smoke while operating or standing near your power tool. Note that combustible fuel vapor may escape from the fuel system.
English 0009BA001 KN Using the Blower The machine is carried as a backpack. Hold and control the blower tube with your right hand on the control handle. Walk slowly forwards as you work – observe the nozzle outlet at all times – do not walk backwards – risk of stumbling. Always shut off the engine before taking the machine off your back. Working Technique Vibrations To minimize blowing time, use a rake and broom to loosen dirt particles before you start blowing.
English regularly given the opportunity to attend training courses and are supplied with the necessary technical information. Vibration behavior is influenced by the condition of the AV elements – check the AV elements at regular intervals. Only use high-quality replacement parts in order to avoid the risk of accidents and damage to the machine. If you have any questions in this respect, consult a servicing dealer. Shut off the engine before rectifying problems.
English Mounting the control handle 3 BR 430 Blower Tube Mounting the control handle 0000-GXX-2039-A0 4 7 N Pull the ends of the clamp on the control handle (7) apart and push it over stub of pleated hose (4). N Attach throttle cable to retainer on the hose clamp (3). Position the hose clamp (3) as shown in the illustration. 0000-GXX-2040-A0 Adjusting the control handle N N 2 N Pull the two halves of the clamp apart. N Push the control handle (1) onto the blower tube (2).
English Mounting the blower tubes N N 3 Depending on your height and reach: Push blower tube (1) up to the appropriate mark on the blower tube (2). Rotate the blower tube (1) in the direction of the arrow and engage it in the appropriate slot (3). 4 6 7 N Push the hose clamp (1) onto the pleated hose (2). N Push the hose clamp (5) onto the pleated hose (2). N Line up the positioning marks on the hose clamp (1) and elbow (3) – the screw recess facing down.
English Removing the nozzle 1 3 452BA112 KN 2 N Rotate the nozzle (1) in the direction of the arrow until the lugs (3) are covered. N Pull the nozzle (1) off the blower tube (2). N Secure the hook and loop fastener to the blower tube – pull the flap through the buckle. N Secure the blower tube to the handle on the backplate. Adjusting the control handle N Put the machine on your back and adjust the harness – see "Fitting the Harness".
English Adjusting the Throttle Cable It may be necessary to correct the adjustment of the throttle cable after assembling the machine or after a prolonged period of operation. Fitting the Harness Fuel Your engine requires a mixture of gasoline and engine oil. Adjusting the Harness WARNING Adjust the throttle cable only when the unit is completely and properly assembled. 0009BA008 KN 373BA003 KN For health reasons, avoid direct skin contact with gasoline and avoid inhaling gasoline vapor.
English Engine Oil If you mix the fuel yourself, use only STIHL two-stroke engine oil or another high-performance engine oil in accordance with JASO FB, JASO FC, JASO FD, ISO-L-EGB, ISO-L-EGC or ISO-L-EGD. STIHL specifies STIHL HP Ultra twostroke engine oil or an equivalent highperformance engine oil in order to maintain emission limits over the machine’s service life.
English Filling up with fuel Information Before You Start Fixed throttle 1 Take care not to spill fuel while fueling and do not overfill the tank. STIHL recommends you use the STIHL filler nozzle (special accessory). With the engine stopped and before starting, check the air intakes between the backplate and powerhead for blockages and clean if necessary. The throttle trigger (2) can be locked in any position: The power tool is equipped with different types of control handle.
English Cranking Starting / Stopping the Engine H Observe safety precautions. NOTICE N Start your unit on a clean, dust-free surface only to ensure that no dust is sucked in. Press the fuel pump bulb at least eight times – even if the bulb is filled with fuel. Cold engine (cold start) 0009BA013 KN 0009BA011 KN 0009BA028 KN N 0009BA012 KN Starting the Engine L LA N Push the choke knob in and turn it to c.
English Operate the throttle trigger. 0009BA018 KN 0009BA023 KN 0009BA022 KN N If the engine does not start Stopping the Engine 0009BA016 KN As soon as the engine runs N N Check that all settings are correct. N Check that there is fuel in the tank and refuel if necessary. N Check that the spark plug boot is properly connected. N Repeat the starting procedure.
English Operating Instructions Replacing the Air Filter 3 After a long period of full throttle operation, allow the engine to run for a short while at idle speed so that engine heat can be dissipated by the flow of cooling air. This helps protect enginemounted components (ignition, carburetor) from thermal overload. 0002BA089 KN During Operation Dirty air filters reduce engine power, increase fuel consumption and make starting more difficult.
English Adjusting the Carburetor Erratic idling behavior, engine stops even though setting of LA screw has been corrected, poor acceleration Standard Setting Idle setting is too lean General Information L H This setting provides an optimum fuel-air mixture under most operating conditions. Preparations N Turn high speed screw (H) counterclockwise as far as stop (no more than 3/4 turn). N Turn the low speed screw (L) clockwise as far as stop, then turn it back 3/4 turn. N Shut off the engine.
English Checking the Spark Plug N If the engine is down on power, difficult to start or runs poorly at idle speed, first check the spark plug. N 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". Removing the spark plug N Use resistor type spark plugs with a properly tightened adapter nut.
English Engine Running Behavior Storing the Machine If engine running behavior is unsatisfactory even though the air filter is clean and the carburetor is properly adjusted, the cause may be the muffler. For periods of 3 months or longer N Drain and clean the fuel tank in a well ventilated area. Have the muffler checked for contamination (carbonization) by your servicing dealer. N Dispose of fuel properly in accordance with local environmental requirements.
English Complete machine Control handle Air filter Manual fuel pump Pickup body in fuel tank Fuel tank Carburetor Spark plug Cooling inlet Visual inspection (condition, leaks) X Clean X X Check operation X X Clean X Replace X Check X Have repaired by servicing dealer1) X Have checked by servicing dealer1) X Have replaced by servicing dealer1) X Clean X X Check idle adjustment X X Readjust idle X Readjust electrode gap X Replace after every 100 operating hours Visual inspec
Blower air intake screen Check Adjust Safety labels Replace as required if damaged if problem every 12 months monthly weekly X Clean Throttle cable 1) X after each refueling stop before starting work The following intervals apply to normal operating conditions only. If your daily working time is longer or operating conditions are difficult (very dusty work area, etc.), shorten the specified intervals accordingly.
English Minimize Wear and Avoid Damage Observing the instructions in this manual helps reduce the risk of unnecessary wear and damage to the power tool. The power tool must be operated, maintained and stored with the due care and attention described in this owner's manual. servicing dealer. STIHL dealers are regularly given the opportunity to attend training courses and are supplied with the necessary technical information.
English Main Parts BR 350 12 1 3 4 5 6 13 11 7 10 9 14 8 2 21 15 16 17 18 22 # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 # Straight nozzle1) Curved nozzle1) Blower tube Blower tube Control handle Throttle trigger Setting lever Pleated hose Back padding Backplate Harness Carrying handle Intake screen Filter cover Carburetor adjusting screws Manual fuel pump Choke knob Starter grip Tank cap Fuel tank Spark plug boot Muffler Serial number 1) Not in all versions, country-spec
English BR 430 12 7 5 6 1 6 3 13 11 7 5 10 9 14 4 8 2 21 15 16 17 18 22 # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 # Straight nozzle1) Curved nozzle1) Blower tube Blower tube Control handle Throttle trigger Setting lever Pleated hose Back padding Backplate Harness Carrying handle Intake screen Filter cover Carburetor adjusting screws Manual fuel pump Choke knob Starter grip Tank cap Fuel tank Spark plug boot Muffler Serial number 1) Not in all versions, country-specific 2
English Air flow rate: 740 m3/h Maximum air velocity 90 m/s Maximum air flow rate with- 1150 m3/h out blower tube assembly: Specifications Engine STIHL single cylinder two-stroke engine Displacement: Bore: Stroke: Idle speed: Engine power to ISO 7293: BR 350: BR 430: 63.3 cm3 48 mm 35 mm 3,000 rpm 2.1 kW (2.8 bhp) 2.9 kW (3.
English The CO2value measured in the EU type approval procedure is specified at www.stihl.com/co2. The measured CO2value was determined on a representative engine in accordance with a standardized test procedure under laboratory conditions and does not represent either an explicit or implied guarantee of the performance of a specific engine. The applicable exhaust emission requirements are fulfilled by the intended usage and maintenance described in this instruction manual.
English EC Declaration of Conformity ANDREAS STIHL AG & Co. KG Badstr. 115 D-71336 Waiblingen Germany ANDREAS STIHL AG & Co. KG Produktzulassung (Product Licensing) The year of manufacture and serial number are applied to the product. Done at Waiblingen, 27.11.2018 ANDREAS STIHL AG & Co. KG declare in exclusive responsibility that the product Category: Make: Model: Serial identification: Displacement: Blower STIHL BR 350 BR 430 4244 63.
English 28 BR 350, BR 430
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