Product Instruction Manual
Page 3
...the instructions in this manual to www.stihlusa.com. M47.F11.CP. 0000000717_005_GB { BR 500, BR 550, BR 600 1 Careless or improper use may cause serious or even fatal injury. © ANDREAS STIHL AG & Co. Contents Guide to Using this Manual Safety Precautions and Working Techniques...Air Filter 21 Engine Management 22 Adjusting the Carburetor 22 Spark Plug 23 Spark Arresting Screen in chapter "Safety Precautions and Working Techniques" before using your blower. Warning! Contact your STIHL dealer or the STIHL distributor for your STIHL blower, it is a high-speed tool,...
...the instructions in this manual to www.stihlusa.com. M47.F11.CP. 0000000717_005_GB { BR 500, BR 550, BR 600 1 Careless or improper use may cause serious or even fatal injury. © ANDREAS STIHL AG & Co. Contents Guide to Using this Manual Safety Precautions and Working Techniques...Air Filter 21 Engine Management 22 Adjusting the Carburetor 22 Spark Plug 23 Spark Arresting Screen in chapter "Safety Precautions and Working Techniques" before using your blower. Warning! Contact your STIHL dealer or the STIHL distributor for your STIHL blower, it is a high-speed tool,...
Product Instruction Manual
Page 12
...reasons, avoid direct contact with a pressure washer. Use only identical STIHL replacement parts for properly maintaining the spark arrester. Have such work not described in this...chart in this instruction manual. Warning! Tighten all nuts, bolts and screws except the carburetor adjustment screws after each use or operate gasoline-powered tools on forest-covered, brush-covered...work performed by your machine with the skin and avoid inhaling fuel vapor! 10 BR 500, BR 550, BR 600 For maintenance items please also refer to fire protection requirements. Before storing ...
...reasons, avoid direct contact with a pressure washer. Use only identical STIHL replacement parts for properly maintaining the spark arrester. Have such work not described in this...chart in this instruction manual. Warning! Tighten all nuts, bolts and screws except the carburetor adjustment screws after each use or operate gasoline-powered tools on forest-covered, brush-covered...work performed by your machine with the skin and avoid inhaling fuel vapor! 10 BR 500, BR 550, BR 600 For maintenance items please also refer to fire protection requirements. Before storing ...
Product Instruction Manual
Page 17
...place the container on the ground before filling. BR 500, BR 550, BR 600 15 Use mid-grade unleaded gasoline with a minimum octane rating of 50:1. Fuel with incorrect idle adjustment. Some fuel additives not only detrimentally affect elastomers (carburetor diaphragms, oil seals, fuel lines, etc.), ... of personal injury from a fuel with a certain ethanol content to operate on a vehicle or trailer. When filling at authorized disposal locations. Gasoline Oil (STIHL 50:1 or equivalent high-quality oils) US gal. 1 2 1/2 5 US fl.oz. 2.6 6.4 12.8 Dispose of the fuel is also important...
...place the container on the ground before filling. BR 500, BR 550, BR 600 15 Use mid-grade unleaded gasoline with a minimum octane rating of 50:1. Fuel with incorrect idle adjustment. Some fuel additives not only detrimentally affect elastomers (carburetor diaphragms, oil seals, fuel lines, etc.), ... of personal injury from a fuel with a certain ethanol content to operate on a vehicle or trailer. When filling at authorized disposal locations. Gasoline Oil (STIHL 50:1 or equivalent high-quality oils) US gal. 1 2 1/2 5 US fl.oz. 2.6 6.4 12.8 Dispose of the fuel is also important...
Product Instruction Manual
Page 23
This protects enginemounted components (ignition, carburetor) from sources of ignition, until you need it again. see "Storing the Machine". N Remove the filter element (3). N Replace dirty or damaged filters. If there is a .... N Remove the filter cover (2). N Fit the filter cover. After Finishing Work Dirty air filters reduce engine power, increase fuel consumption and make starting more difficult. BR 500, BR 550, BR 600 21
This protects enginemounted components (ignition, carburetor) from sources of ignition, until you need it again. see "Storing the Machine". N Remove the filter element (3). N Replace dirty or damaged filters. If there is a .... N Remove the filter cover (2). N Fit the filter cover. After Finishing Work Dirty air filters reduce engine power, increase fuel consumption and make starting more difficult. BR 500, BR 550, BR 600 21
Product Instruction Manual
Page 24
... high speed and low speed screws within fine limits. N Check that the throttle cable is 3/4 turn open . Machines with adjustable carburetor The carburetor comes from the factory with a standard setting. HL N Carefully turn both adjusting screws counterclockwise as far as stop: N The high...adjust the carburetor. readjust if necessary - N The low speed screw (H) is properly adjusted - Adjusting idle speed Engine stops while idling: N Turn the idle speed screw (LA) slowly clockwise until the engine runs smoothly. N Start and warm up the engine. 22 BR 500, BR 550, BR 600
... high speed and low speed screws within fine limits. N Check that the throttle cable is 3/4 turn open . Machines with adjustable carburetor The carburetor comes from the factory with a standard setting. HL N Carefully turn both adjusting screws counterclockwise as far as stop: N The high...adjust the carburetor. readjust if necessary - N The low speed screw (H) is properly adjusted - Adjusting idle speed Engine stops while idling: N Turn the idle speed screw (LA) slowly clockwise until the engine runs smoothly. N Start and warm up the engine. 22 BR 500, BR 550, BR 600
Product Instruction Manual
Page 29
N Position the replacement spring with local environmental requirements. this helps prevent the carburetor diaphragms sticking together. N Store the machine in a well ventilated area. out of the reach of fuel properly in accordance ...filter. English Inspections and Maintenance by an authorized STIHL servicing dealer. pay special attention to low temperatures may damage machine components. BR 500, BR 550, BR 600 27 N Dispose of children and other unauthorized persons. N Run the engine until the carburetor is dry - STIHL recommends that you have servicing and repair work...
N Position the replacement spring with local environmental requirements. this helps prevent the carburetor diaphragms sticking together. N Store the machine in a well ventilated area. out of the reach of fuel properly in accordance ...filter. English Inspections and Maintenance by an authorized STIHL servicing dealer. pay special attention to low temperatures may damage machine components. BR 500, BR 550, BR 600 27 N Dispose of children and other unauthorized persons. N Run the engine until the carburetor is dry - STIHL recommends that you have servicing and repair work...
Product Instruction Manual
Page 30
... Have checked by dealer1) Have filter replaced by dealer1) X X X X X Fuel tank Clean X Check idle adjustment X X Carburetor Readjust idle X Readjust electrode gap X Spark plug Replace after every 100 operating hours Cooling inlets Visual inspection Clean X X Valve clearance ... screws and nuts (not adjusting screws) Retighten X Antivibration elements Check X Have replaced by dealer1) X X 28 BR 500, BR 550, BR 600 before starting work after finishing work area, etc.), shorten the specified intervals accordingly. English Maintenance and Care The following...
... Have checked by dealer1) Have filter replaced by dealer1) X X X X X Fuel tank Clean X Check idle adjustment X X Carburetor Readjust idle X Readjust electrode gap X Spark plug Replace after every 100 operating hours Cooling inlets Visual inspection Clean X X Valve clearance ... screws and nuts (not adjusting screws) Retighten X Antivibration elements Check X Have replaced by dealer1) X X 28 BR 500, BR 550, BR 600 before starting work after finishing work area, etc.), shorten the specified intervals accordingly. English Maintenance and Care The following...
Product Instruction Manual
Page 32
English Main Parts 3 2 1 7 6 5 4 9 10 8 11 12 13 # 14 17 16 18 15 19 20 1 Straight Nozzle 2 Blower Tube (BR 550 / 600) 3 Blower Tube (BR 500) 4 Blower Tube (BR 500 / 550 / 600) 5 Control Handle 6 Throttle Trigger 7 Setting Lever 8 Pleated Hose 9 Harness 10 Backplate 11 Intake Screen 12 Air Filter Cover 13 Fuel Filler Cap 14 Spark Plug Boot 15 Muffler (with Spark Arresting Screen) 16 Carburetor Adjusting Screws 17 Choke Knob 18 Fuel Pump 19 Starter Grip 20 Fuel Tank # Serial Number 452BA099 KN 30 BR 500, BR 550, BR 600
English Main Parts 3 2 1 7 6 5 4 9 10 8 11 12 13 # 14 17 16 18 15 19 20 1 Straight Nozzle 2 Blower Tube (BR 550 / 600) 3 Blower Tube (BR 500) 4 Blower Tube (BR 500 / 550 / 600) 5 Control Handle 6 Throttle Trigger 7 Setting Lever 8 Pleated Hose 9 Harness 10 Backplate 11 Intake Screen 12 Air Filter Cover 13 Fuel Filler Cap 14 Spark Plug Boot 15 Muffler (with Spark Arresting Screen) 16 Carburetor Adjusting Screws 17 Choke Knob 18 Fuel Pump 19 Starter Grip 20 Fuel Tank # Serial Number 452BA099 KN 30 BR 500, BR 550, BR 600
Product Instruction Manual
Page 33
...desired direction. 9. Blower Tube (BR 500) Directs the airstream. 4. Blower Tube (BR 500 / 550 / 600) Directs the airstream. 5. Pleated Hose For blowing in . (33 mm) 2,500 rpm BR 500, BR 550, BR 600 31 Intake Screen Helps prevent... the terms: Extended = 300 hours Intermediate = 125 hours Moderate = 50 hours Engine STIHL 4-MIX Engine Displacement: Bore: Stroke: Idle speed: 3.95 cu. Backplate Helps protect the... the engine. 20. Harness For carrying the unit. 10. Carburetor Adjusting Screws For tuning the carburetor. 17. Spark arresting screen is designed to hold and direct ...
...desired direction. 9. Blower Tube (BR 500) Directs the airstream. 4. Blower Tube (BR 500 / 550 / 600) Directs the airstream. 5. Pleated Hose For blowing in . (33 mm) 2,500 rpm BR 500, BR 550, BR 600 31 Intake Screen Helps prevent... the terms: Extended = 300 hours Intermediate = 125 hours Moderate = 50 hours Engine STIHL 4-MIX Engine Displacement: Bore: Stroke: Idle speed: 3.95 cu. Backplate Helps protect the... the engine. 20. Harness For carrying the unit. 10. Carburetor Adjusting Screws For tuning the carburetor. 17. Spark arresting screen is designed to hold and direct ...
Product Instruction Manual
Page 34
...0.028 in. (0.7 mm) Fuel System dry BR 500: BR 550: BR 600: All position diaphragm carburetor with integral fuel pump Fuel tank capacity: 47.3 fl.oz (1.4 L) Blower Data Maximum air flow rate BR 500: 812 cf/min (1380 m3/h) BR 550: 877 cf/min (1490 m3/h) BR 600: 1012 cf/min (1720 m3/h) Maximum...(810 m3/h) BR 550: 530 cf/min (900 m3/h) BR 600: 712 cf/min (1012 m3/h) Air velocity with nozzle BR 500: BR 550: BR 600: 181 mph (81 m/s) 199 mph (89 m/s) 201 mph (90 m/s) Special Accessories 22.3 lbs (10.1 kg) 21,8 lbs (9,9 kg) 21,6 lbs (9,8 kg) Contact your STIHL dealer for information...
...0.028 in. (0.7 mm) Fuel System dry BR 500: BR 550: BR 600: All position diaphragm carburetor with integral fuel pump Fuel tank capacity: 47.3 fl.oz (1.4 L) Blower Data Maximum air flow rate BR 500: 812 cf/min (1380 m3/h) BR 550: 877 cf/min (1490 m3/h) BR 600: 1012 cf/min (1720 m3/h) Maximum...(810 m3/h) BR 550: 530 cf/min (900 m3/h) BR 600: 712 cf/min (1012 m3/h) Air velocity with nozzle BR 500: BR 550: BR 600: 181 mph (81 m/s) 199 mph (89 m/s) 201 mph (90 m/s) Special Accessories 22.3 lbs (10.1 kg) 21,8 lbs (9,9 kg) 21,6 lbs (9,8 kg) Contact your STIHL dealer for information...
Product Instruction Manual
Page 35
... are responsible for presenting your instruction manual. Your emission control system includes parts such as a BR 500, BR 550, BR 600 33 Original STIHL parts can be aware, however, that STIHL Incorporated may deny you are responsible for the performance of charge. EPA standards for your failure to...free from the date of time listed below provided there has been no English cost to a STIHL service center as soon as the carburetor and the ignition system. STIHL Incorporated recommends that is equivalent in this manual. Other repair work is defective, the part will...
... are responsible for presenting your instruction manual. Your emission control system includes parts such as a BR 500, BR 550, BR 600 33 Original STIHL parts can be aware, however, that STIHL Incorporated may deny you are responsible for the performance of charge. EPA standards for your failure to...free from the date of time listed below provided there has been no English cost to a STIHL service center as soon as the carburetor and the ignition system. STIHL Incorporated recommends that is equivalent in this manual. Other repair work is defective, the part will...
Product Instruction Manual
Page 36
...warranty rights and responsibilities, please contact a STIHL customer service representative at any questions regarding quality and mixing ratio of two years. Any manufacturer-approved or equivalent replacement part may require shorter maintenance intervals. 34 BR 500, BR 550, BR 600 Spark Plug - Fuel Line -...which is defective, the part will be provided without charge to conform with applicable regulations for any independent test laboratory. Carburetor - If any emission-related part on emission-related parts and must be warranted for that a warranted part is defective...
...warranty rights and responsibilities, please contact a STIHL customer service representative at any questions regarding quality and mixing ratio of two years. Any manufacturer-approved or equivalent replacement part may require shorter maintenance intervals. 34 BR 500, BR 550, BR 600 Spark Plug - Fuel Line -...which is defective, the part will be provided without charge to conform with applicable regulations for any independent test laboratory. Carburetor - If any emission-related part on emission-related parts and must be warranted for that a warranted part is defective...
Product Instruction Manual
Page 37
...maintenance or unapproved modifications. You are pleased to meet the State's stringent anti-smog standards. If BR 500, BR 550, BR 600 35 STIHL Incorporated recommends that STIHL Incorporated may include parts such as the problem exists. Manufacturer's Warranty Responsibilities This emissions control system...you warranty coverage if your small off -road equipment engine or a part has failed due to a STIHL servicing dealer as soon as : Air Filter, Carburetor, Fuel Pump, Choke (Cold Start Enrichment System), Control Linkages, Intake Manifold, Magneto or Electronic Ignition ...
...maintenance or unapproved modifications. You are pleased to meet the State's stringent anti-smog standards. If BR 500, BR 550, BR 600 35 STIHL Incorporated recommends that STIHL Incorporated may include parts such as the problem exists. Manufacturer's Warranty Responsibilities This emissions control system...you warranty coverage if your small off -road equipment engine or a part has failed due to a STIHL servicing dealer as soon as : Air Filter, Carburetor, Fuel Pump, Choke (Cold Start Enrichment System), Control Linkages, Intake Manifold, Magneto or Electronic Ignition ...
Product Instruction Manual
Page 39
...cause of the need for repair or replacement of the part. Trademarks STIHL Registered Trademarks STIHL® { K The color combination orange-grey (U.S. Emission Warranty Parts List Air Filter, Carburetor, Fuel Pump, Choke (Cold Start Enrichment System), Control Linkages, Intake ...FARM BOSS® iCademy® OILOMATIC® STIHL Cutquik® STIHL DUROMATIC® STIHL Quickstop® STIHL ROLLOMATIC® STIHL WOOD BOSS® TIMBERSPORTS® WOOD BOSS® YARD BOSS® BR 500, BR 550, BR 600 English Some of STIHL's Common Law Trademarks BioPlus™ Easy2Start™ ...
...cause of the need for repair or replacement of the part. Trademarks STIHL Registered Trademarks STIHL® { K The color combination orange-grey (U.S. Emission Warranty Parts List Air Filter, Carburetor, Fuel Pump, Choke (Cold Start Enrichment System), Control Linkages, Intake ...FARM BOSS® iCademy® OILOMATIC® STIHL Cutquik® STIHL DUROMATIC® STIHL Quickstop® STIHL ROLLOMATIC® STIHL WOOD BOSS® TIMBERSPORTS® WOOD BOSS® YARD BOSS® BR 500, BR 550, BR 600 English Some of STIHL's Common Law Trademarks BioPlus™ Easy2Start™ ...
Technical Guide
Page 7
... decompression cam (1) - Accelerator pump for long filter service life . Choke knob with independent idle . All-position diaphragm carburetor with integrated starting throttle position . this cancels the effect of the decompression cam . Two-chamber muffler with ignition timing adjustment... on the starter rope. Decompression cam (1) projects and actuates the lever (2) . Cam disk at low speed (starting): 1.7 Carburetor . Technical Information 08.2005 Page 7 1.6 Decompression system The automatic decompression system reduces the compression upon starting and hence the required...
... decompression cam (1) - Accelerator pump for long filter service life . Choke knob with independent idle . All-position diaphragm carburetor with integrated starting throttle position . this cancels the effect of the decompression cam . Two-chamber muffler with ignition timing adjustment... on the starter rope. Decompression cam (1) projects and actuates the lever (2) . Cam disk at low speed (starting): 1.7 Carburetor . Technical Information 08.2005 Page 7 1.6 Decompression system The automatic decompression system reduces the compression upon starting and hence the required...
Technical Guide
Page 8
... Displacement Cylinder bore Piston stroke Idle speed Operating speed with nozzle Maximum air flow Air flow with adjustment of exposure 2.2 Fuel system Carburetor All-position diaphragm carburetor with limiter caps Low-speed adjusting screw L: 3/4 turn open Fuel tank capacity 1.4 l (1400 cm³) 2.3 Ignition system ... high-speed adjusting screw (H) and the lowspeed adjusting screw (L) and integrated fuel pump. RPM Weight BR 500 5,500 rpm 1,380 m³/h 810 m³/h 81m/s 86 dB(A) 95 dB(A) BR 550 64.8 cm3 50 mm 33 mm 2,500 rpm 6,100 rpm 1,490 m³/h 900 m³/h...
... Displacement Cylinder bore Piston stroke Idle speed Operating speed with nozzle Maximum air flow Air flow with adjustment of exposure 2.2 Fuel system Carburetor All-position diaphragm carburetor with limiter caps Low-speed adjusting screw L: 3/4 turn open Fuel tank capacity 1.4 l (1400 cm³) 2.3 Ignition system ... high-speed adjusting screw (H) and the lowspeed adjusting screw (L) and integrated fuel pump. RPM Weight BR 500 5,500 rpm 1,380 m³/h 810 m³/h 81m/s 86 dB(A) 95 dB(A) BR 550 64.8 cm3 50 mm 33 mm 2,500 rpm 6,100 rpm 1,490 m³/h 900 m³/h...
Technical Guide
Page 11
... by the user within a range of 270° (3/4 turn). Check spark arresting screen (if installed) - Service notes 5.1 Carburetor adjustment Page 11 The limiter caps are fitted over the knurled head of work and use such as they are still possible to adapt.... Stop (5) . Technical Information 08.2005 5. Idle speed adjusting screw (6) TI_08_2005_11_01_02.fm Check air filter and replace it if necessary. . The carburetor has been adjusted for optimum performance and fuel efficiency in elevation (mountains, sea-level). 5.1.1 Mechanical design When servicing, the limiter caps must be ...
... by the user within a range of 270° (3/4 turn). Check spark arresting screen (if installed) - Service notes 5.1 Carburetor adjustment Page 11 The limiter caps are fitted over the knurled head of work and use such as they are still possible to adapt.... Stop (5) . Technical Information 08.2005 5. Idle speed adjusting screw (6) TI_08_2005_11_01_02.fm Check air filter and replace it if necessary. . The carburetor has been adjusted for optimum performance and fuel efficiency in elevation (mountains, sea-level). 5.1.1 Mechanical design When servicing, the limiter caps must be ...
Technical Guide
Page 12
... the high-speed adjusting screw (H): BR 500: 5,500 rpm BR 550: 6,100 rpm BR 600: 7,200 rpm If you make the setting too lean it will increase the risk of engine damage through lack of +/- 200 rpm. 1. Do not press on the limiter caps until they contact the carburetor housing since they are damaged when...
... the high-speed adjusting screw (H): BR 500: 5,500 rpm BR 550: 6,100 rpm BR 600: 7,200 rpm If you make the setting too lean it will increase the risk of engine damage through lack of +/- 200 rpm. 1. Do not press on the limiter caps until they contact the carburetor housing since they are damaged when...
Technical Guide
Page 13
... the throttle shutter, fuel is held in the idle position by a compression spring (3). See instructions for use, "Setting the carburetor," to set the carburetor for this purpose. Unscrew spark plug 5.3 Accelerator pump The carburetor is cold. Remove the air guide shroud. . The kit comprises a setting gauge, O-ring and gasket. 5.4.1 Preparatory steps . The pump...
... the throttle shutter, fuel is held in the idle position by a compression spring (3). See instructions for use, "Setting the carburetor," to set the carburetor for this purpose. Unscrew spark plug 5.3 Accelerator pump The carburetor is cold. Remove the air guide shroud. . The kit comprises a setting gauge, O-ring and gasket. 5.4.1 Preparatory steps . The pump...
Technical Guide
Page 14
.... This represents the change of cycle between intake and delivery. The piston consequently passes through the top dead centre twice in order to the STIHL Service Training System "Carburetor", under the heading four-stroke principle. The valve clearance must be set at which the piston ends its upward stroke and starts its...
.... This represents the change of cycle between intake and delivery. The piston consequently passes through the top dead centre twice in order to the STIHL Service Training System "Carburetor", under the heading four-stroke principle. The valve clearance must be set at which the piston ends its upward stroke and starts its...