Instruction Manual
Page 3
... and Working Techniques Assembling the Unit Adjusting the Throttle Cable 2 STIHL Incorporated California Exhaust and Evaporative 2 Emissions Control Warranty 11 Statement 14 Trademarks Fitting the Harness 14 4-MIX Engine 15 Fuel 15 Fueling 16 Winter Operation 18 Information Before You Start..., BR 550, BR 600 This instruction manual is protected by Dealer 26 Maintenance and Care 27 Main Parts 29 Specifications 30 Special Accessories 31 Maintenance and Repairs 32 Disposal 32 STIHL Incorporated Federal Emission Control Warranty Statement 32 Allow only persons who ...
... and Working Techniques Assembling the Unit Adjusting the Throttle Cable 2 STIHL Incorporated California Exhaust and Evaporative 2 Emissions Control Warranty 11 Statement 14 Trademarks Fitting the Harness 14 4-MIX Engine 15 Fuel 15 Fueling 16 Winter Operation 18 Information Before You Start..., BR 550, BR 600 This instruction manual is protected by Dealer 26 Maintenance and Care 27 Main Parts 29 Specifications 30 Special Accessories 31 Maintenance and Repairs 32 Disposal 32 STIHL Incorporated Federal Emission Control Warranty Statement 32 Allow only persons who ...
Instruction Manual
Page 4
..., engineering changes and improvements are supported by illustrations. If the operating characteristics or the appearance of severe or fatal injury. Careless or improper use of a step or procedure that refers directly to an illustration may be hazardous. 2 BR 500, BR 550, BR 600 Have your STIHL dealer... show you read, fully understand and observe the following pictograms may be covered in this manual, please contact your STIHL dealer or the STIHL distributor for your machine differs from time...
..., engineering changes and improvements are supported by illustrations. If the operating characteristics or the appearance of severe or fatal injury. Careless or improper use of a step or procedure that refers directly to an illustration may be hazardous. 2 BR 500, BR 550, BR 600 Have your STIHL dealer... show you read, fully understand and observe the following pictograms may be covered in this manual, please contact your STIHL dealer or the STIHL distributor for your machine differs from time...
Instruction Manual
Page 6
... never operate your power tool unless wearing goggles or properly fitted protective glasses with adequate top and side protection complying with the engine and/or operator: The control handle is properly assembled and you are still experiencing static shocks, make sure that the controls ..., BR 550, BR 600 Power tool noise may , in low humidity and high dust conditions. Continual and regular users should wear proper protective apparel. Steel-toed safety boots are useable with "wire" for the material being blown. Only attachments supplied by STIHL or expressly approved by your hearing....
... never operate your power tool unless wearing goggles or properly fitted protective glasses with adequate top and side protection complying with the engine and/or operator: The control handle is properly assembled and you are still experiencing static shocks, make sure that the controls ..., BR 550, BR 600 Power tool noise may , in low humidity and high dust conditions. Continual and regular users should wear proper protective apparel. Steel-toed safety boots are useable with "wire" for the material being blown. Only attachments supplied by STIHL or expressly approved by your hearing....
Instruction Manual
Page 7
..., BR 550, BR 600 5 WARNING In order to reduce the risk of fuel spillage and fire from escaping gas vapor and fumes, remove the fuel filler cap on the fuel tank opening lining up. Toolless cap with grip To do not start or run the engine until the leak is upright at ... outdoors. Fueling Instructions WARNING To reduce the risk of your clothing immediately. Note that combustible fuel vapor may escape from the operator. Fuel Your STIHL power tool uses an oilgasoline mixture for fuel (see the chapter on the fuel used, the weather conditions and the tank venting system. Gasoline vapor...
..., BR 550, BR 600 5 WARNING In order to reduce the risk of fuel spillage and fire from escaping gas vapor and fumes, remove the fuel filler cap on the fuel tank opening lining up. Toolless cap with grip To do not start or run the engine until the leak is upright at ... outdoors. Fueling Instructions WARNING To reduce the risk of your clothing immediately. Note that combustible fuel vapor may escape from the operator. Fuel Your STIHL power tool uses an oilgasoline mixture for fuel (see the chapter on the fuel used, the weather conditions and the tank venting system. Gasoline vapor...
Instruction Manual
Page 8
...for proper condition and operation before using it to keep them free of the unit and take it . WARNING Never operate your authorized STIHL dealer for you must move freely and always spring back to the open position for tightness. WARNING Check that could ignite combustible fumes ...risk of cap in your Instruction Manual for additional information. 452BA121 KN Before Starting WARNING Always check your power tool. 6 BR 500, BR 550, BR 600 Do not start the engine if there are leaks or damage - Keep the handles clean and dry at tightening. Grip the cap and check for ...
...for proper condition and operation before using it to keep them free of the unit and take it . WARNING Never operate your authorized STIHL dealer for you must move freely and always spring back to the open position for tightness. WARNING Check that could ignite combustible fumes ...risk of cap in your Instruction Manual for additional information. 452BA121 KN Before Starting WARNING Always check your power tool. 6 BR 500, BR 550, BR 600 Do not start the engine if there are leaks or damage - Keep the handles clean and dry at tightening. Grip the cap and check for ...
Instruction Manual
Page 9
...throw off the machine quickly. To reduce the risk of the harness over one -person machine. If the engine is designed for repair. Maintain good balance and secure footing. Try slipping out of the harness a number... become accustomed to it could allow the engine to slow down to the "on slopes or uneven ground. 0009BA001 KN BR 500, BR 550, BR 600 7 After the setting lever is found, stop the engine, it properly. To reduce the risk ... contact your hand. Wrap your fingers tightly around your STIHL dealer for singlehanded operation with the strap(s) over both shoulders.
...throw off the machine quickly. To reduce the risk of the harness over one -person machine. If the engine is designed for repair. Maintain good balance and secure footing. Try slipping out of the harness a number... become accustomed to it could allow the engine to slow down to the "on slopes or uneven ground. 0009BA001 KN BR 500, BR 550, BR 600 7 After the setting lever is found, stop the engine, it properly. To reduce the risk ... contact your hand. Wrap your fingers tightly around your STIHL dealer for singlehanded operation with the strap(s) over both shoulders.
Instruction Manual
Page 10
Work carefully. WARNING As soon as the engine is dangerous and can cause susceptible persons to cause cancer, reproductive toxicity, etc. WARNING Inhalation of certain dusts, especially organic dusts such as unburned hydrocarbons (... on any dust raised by the power tool away from some other airborne contaminants, in a well-ventilated area. If you might be blowing or 8 BR 500, BR 550, BR 600 The state of dust and other authorities, for that the wind or operating process directs any other illnesses. Some of control, do not walk...
Work carefully. WARNING As soon as the engine is dangerous and can cause susceptible persons to cause cancer, reproductive toxicity, etc. WARNING Inhalation of certain dusts, especially organic dusts such as unburned hydrocarbons (... on any dust raised by the power tool away from some other airborne contaminants, in a well-ventilated area. If you might be blowing or 8 BR 500, BR 550, BR 600 The state of dust and other authorities, for that the wind or operating process directs any other illnesses. Some of control, do not walk...
Instruction Manual
Page 11
...housing or a damaged/deformed muffler shell. move the setting lever to cause cancer. Have your muffler serviced and repaired by a STIHL servicing dealer. Let the engine cool down sitting on the ground when operating at great speed. Your muffler is best to reduce the risk of fire from the... damage the engine. You may cause serious injury to the operator or bystanders as a substance known to 0 or STOP. fins of burns, do not continue work alone. To reduce risk of the cylinder, spark plug) become hot during operation and remain hot for certain BR 500, BR 550, BR 600 9 Keep ...
...housing or a damaged/deformed muffler shell. move the setting lever to cause cancer. Have your muffler serviced and repaired by a STIHL servicing dealer. Let the engine cool down sitting on the ground when operating at great speed. Your muffler is best to reduce the risk of fire from the... damage the engine. You may cause serious injury to the operator or bystanders as a substance known to 0 or STOP. fins of burns, do not continue work alone. To reduce risk of the cylinder, spark plug) become hot during operation and remain hot for certain BR 500, BR 550, BR 600 9 Keep ...
Instruction Manual
Page 12
...cool down in this instruction manual. To reduce the risk of fire and burn injuries when using a catalytic converter, always set your STIHL servicing dealer only. MAINTENANCE, REPAIR AND STORING Maintenance, replacement, or repair of a brush or forest fire is greater in the boot... The owner/operator of fire; Other states or governmental entities/agencies, such as conventional mufflers when the engine returns to reduce the exhaust emissions of the engine by a chemical process in this product is responsible for the laws or regulations relating to use . 10 BR 500, BR 550, BR 600
...cool down in this instruction manual. To reduce the risk of fire and burn injuries when using a catalytic converter, always set your STIHL servicing dealer only. MAINTENANCE, REPAIR AND STORING Maintenance, replacement, or repair of a brush or forest fire is greater in the boot... The owner/operator of fire; Other states or governmental entities/agencies, such as conventional mufflers when the engine returns to reduce the exhaust emissions of the engine by a chemical process in this product is responsible for the laws or regulations relating to use . 10 BR 500, BR 550, BR 600
Instruction Manual
Page 17
.... This problem can cause running cutting tool, do not fill fuel containers that are sitting in engines and should not move. We recommend STIHL HP Ultra 2-Cycle Engine Oil since it may increase engine temperatures. Do not use BIA or TCW rated (twostroke water cooled) mix oils or other mix...of control and/or contact with the running problems and major damage in or on a vehicle or trailer. BR 500, BR 550, BR 600 15 It operates otherwise on unleaded gasoline and the STIHL twostroke engine oil at the pump, first remove the container from loss of 89 ((R+M)/2) and no more than 10%...
.... This problem can cause running cutting tool, do not fill fuel containers that are sitting in engines and should not move. We recommend STIHL HP Ultra 2-Cycle Engine Oil since it may increase engine temperatures. Do not use BIA or TCW rated (twostroke water cooled) mix oils or other mix...of control and/or contact with the running problems and major damage in or on a vehicle or trailer. BR 500, BR 550, BR 600 15 It operates otherwise on unleaded gasoline and the STIHL twostroke engine oil at the pump, first remove the container from loss of 89 ((R+M)/2) and no more than 10%...
Instruction Manual
Page 20
...firmly. At temperatures above 70°F (+20°C): N Always return the shutter (4) to the summer position (s) NOTICE since there is otherwise a risk of engine running problems due to the winter position (r). Closing the threaded filler cap 2 1 N Swing the shutter (4) to overheating. 452BA084 KN N Remove the filter...and tighten it can be removed from the tank opening. N Remove the filler cap. N Loosen the screw (3). 18 452BA085 KN BR 500, BR 550, BR 600 Refueling Take care not to spill fuel while fueling and do not overfill the tank. N Refit the filter cover and air filter...
...firmly. At temperatures above 70°F (+20°C): N Always return the shutter (4) to the summer position (s) NOTICE since there is otherwise a risk of engine running problems due to the winter position (r). Closing the threaded filler cap 2 1 N Swing the shutter (4) to overheating. 452BA084 KN N Remove the filter...and tighten it can be removed from the tank opening. N Remove the filler cap. N Loosen the screw (3). 18 452BA085 KN BR 500, BR 550, BR 600 Refueling Take care not to spill fuel while fueling and do not overfill the tank. N Refit the filter cover and air filter...
Instruction Manual
Page 21
Information Before You Start 1 2 1 Setting lever 2 Throttle trigger The three positions of the setting lever 452BA020 KN Starting / Stopping the Engine Starting the Engine N Observe safety precautions. Lock position C - BR 500, BR 550, BR 600 19 The setting lever does not remain in three positions: 1/3 throttle, 2/3 throttle and full throttle. even if the bulb is sucked in...
Information Before You Start 1 2 1 Setting lever 2 Throttle trigger The three positions of the setting lever 452BA020 KN Starting / Stopping the Engine Starting the Engine N Observe safety precautions. Lock position C - BR 500, BR 550, BR 600 19 The setting lever does not remain in three positions: 1/3 throttle, 2/3 throttle and full throttle. even if the bulb is sucked in...
Instruction Manual
Page 22
... no more than three attempts, turn the choke knob to n quickly enough after the engine began to prevent it slipping. warm up the engine for a short period. If the engine is flooded. 452BA026 KN 20 BR 500, BR 550, BR 600 Do not pull out the starter rope to n. Guide it a brisk strong pull. ...As soon as the engine runs Return engine to 0 - N Do not let the starter grip snap back. ...
... no more than three attempts, turn the choke knob to n quickly enough after the engine began to prevent it slipping. warm up the engine for a short period. If the engine is flooded. 452BA026 KN 20 BR 500, BR 550, BR 600 Do not pull out the starter rope to n. Guide it a brisk strong pull. ...As soon as the engine runs Return engine to 0 - N Do not let the starter grip snap back. ...
Instruction Manual
Page 23
...Continue cranking until you need it again. If fuel tank has been run for the engine to n. During Operation After a long period of engine power N Move the setting lever (1) to run completely dry and then refueled N ...engine runs. After Finishing Work Dirty air filters reduce engine power, increase fuel consumption and make starting more difficult. even if the bulb is a noticeable loss of full throttle operation, allow the engine to C. N Now start the engine. Keep the machine in the full throttle position. For longer out-of throttle cable - BR 500, BR 550, BR 600...
...Continue cranking until you need it again. If fuel tank has been run for the engine to n. During Operation After a long period of engine power N Move the setting lever (1) to run completely dry and then refueled N ...engine runs. After Finishing Work Dirty air filters reduce engine power, increase fuel consumption and make starting more difficult. even if the bulb is a noticeable loss of full throttle operation, allow the engine to C. N Now start the engine. Keep the machine in the full throttle position. For longer out-of throttle cable - BR 500, BR 550, BR 600...
Instruction Manual
Page 24
...ignition, timing and valve or port timing) without Adjustable Carburetor On certain machine versions it is no setting symbol on the shroud. BR 500, BR 550, BR 600 With this carburetor it is only possible to adjust the high speed and low speed screws within fine limits. N Fit the filter ...have no longer necessary to provide an optimum fuel-air mixture in the filter housing. Machines without the addition of the fundamental engine parameters and components (e.g. Such machines have been set at the factory to adjust the carburetor. N Replace dirty or damaged filters. Adjusting...
...ignition, timing and valve or port timing) without Adjustable Carburetor On certain machine versions it is no setting symbol on the shroud. BR 500, BR 550, BR 600 With this carburetor it is only possible to adjust the high speed and low speed screws within fine limits. N Fit the filter ...have no longer necessary to provide an optimum fuel-air mixture in the filter housing. Machines without the addition of the fundamental engine parameters and components (e.g. Such machines have been set at the factory to adjust the carburetor. N Replace dirty or damaged filters. Adjusting...
Instruction Manual
Page 25
... and accelerates smoothly. N The low speed screw (L) is 3/4 turn open . It is a risk of engine damage due to insufficient lubrication and overheating. N Unscrew the spark plug (2). 452BA092 KN BR 500, BR 550, BR 600 23 N Turn high speed screw (H) slightly clockwise (leaner) - If the setting is too lean there is usually necessary to change the...
... and accelerates smoothly. N The low speed screw (L) is 3/4 turn open . It is a risk of engine damage due to insufficient lubrication and overheating. N Unscrew the spark plug (2). 452BA092 KN BR 500, BR 550, BR 600 23 N Turn high speed screw (H) slightly clockwise (leaner) - If the setting is too lean there is usually necessary to change the...
Instruction Manual
Page 27
If the screen is dry - BR 500, BR 550, BR 600 25 N Wait for the muffler to cool down on "Starting / Stopping the Engine." N Run the engine until the carburetor is damaged or heavily carbonized, fit a new one. pay special attention to snap back, guide it breaks ...and other unauthorized persons. 452BA091 KN 3 N Remove the spark arresting screen (3). N Thoroughly clean the machine - N Clean the spark arresting screen. STIHL recommends that you have servicing and repair work carried out exclusively by your dealer before it back into the housing slowly - N Refit the spark ...
If the screen is dry - BR 500, BR 550, BR 600 25 N Wait for the muffler to cool down on "Starting / Stopping the Engine." N Run the engine until the carburetor is damaged or heavily carbonized, fit a new one. pay special attention to snap back, guide it breaks ...and other unauthorized persons. 452BA091 KN 3 N Remove the spark arresting screen (3). N Thoroughly clean the machine - N Clean the spark arresting screen. STIHL recommends that you have servicing and repair work carried out exclusively by your dealer before it back into the housing slowly - N Refit the spark ...
Instruction Manual
Page 32
...) Directs the airstream. 4. Pleated Hose For blowing in (33 mm) 2,500 rpm 30 BR 500, BR 550, BR 600 Starter Grip The grip of burns and fire. Blower Tube (BR 550 / 600) Directs the airstream. 3. Choke Knob Eases engine starting the engine. 20. Harness For carrying the unit. 10. Spacer Designed to hold and direct the tube in..., for a cold start. 19. Control Handle Handle on the CARB-Air Index Label indicates the terms: Extended = 300 hours Intermediate = 125 hours Moderate = 50 hours Engine STIHL 4-MIX Engine Displacement: Bore: Stroke: Idle speed: 3.95 cu.
...) Directs the airstream. 4. Pleated Hose For blowing in (33 mm) 2,500 rpm 30 BR 500, BR 550, BR 600 Starter Grip The grip of burns and fire. Blower Tube (BR 550 / 600) Directs the airstream. 3. Choke Knob Eases engine starting the engine. 20. Harness For carrying the unit. 10. Spacer Designed to hold and direct the tube in..., for a cold start. 19. Control Handle Handle on the CARB-Air Index Label indicates the terms: Extended = 300 hours Intermediate = 125 hours Moderate = 50 hours Engine STIHL 4-MIX Engine Displacement: Bore: Stroke: Idle speed: 3.95 cu.
Instruction Manual
Page 34
...the garbage can. Also included may appear alone on your small off -road equipment engine. The equipment engine must warrant the emission control system on small parts. STIHL recommends that other emission-related assemblies. Disposal Observe all country-specific waste disposal rules ...following repairs can be performed only by the STIHL parts symbol K. STIHL products must be thrown in this manual. Contact your small off -road equipment engines must not be designed, built and equipped, at an authorized dealer), parts, and labor. 32 BR 500, BR 550, BR 600
...the garbage can. Also included may appear alone on your small off -road equipment engine. The equipment engine must warrant the emission control system on small parts. STIHL recommends that other emission-related assemblies. Disposal Observe all country-specific waste disposal rules ...following repairs can be performed only by the STIHL parts symbol K. STIHL products must be thrown in this manual. Contact your small off -road equipment engines must not be designed, built and equipped, at an authorized dealer), parts, and labor. 32 BR 500, BR 550, BR 600
Instruction Manual
Page 35
... failure to the owner if it is determined that part. Warranty Work STIHL Incorporated shall remedy warranty defects at any authorized STIHL servicing dealer or warranty station. Fuel Pump BR 500, BR 550, BR 600 33 Owner's Warranty Responsibilities As the small off -road equipment engine to abuse, neglect, improper maintenance or unapproved modifications. Any warranted part...
... failure to the owner if it is determined that part. Warranty Work STIHL Incorporated shall remedy warranty defects at any authorized STIHL servicing dealer or warranty station. Fuel Pump BR 500, BR 550, BR 600 33 Owner's Warranty Responsibilities As the small off -road equipment engine to abuse, neglect, improper maintenance or unapproved modifications. Any warranted part...