Product 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 13 Trademarks Fitting the Harness 14 4-MIX Engine 14 Fuel 15 Fueling 16 Winter Operation 18 Information Before You Start 18 Starting / Stopping the Engine 19 Operating Instructions 21 Replacing the Air Filter 21 Engine Management 22 Adjusting the Carburetor 22 Spark Plug 23 Spark Arresting Screen in this manual to operate your STIHL blower, it is a high-speed tool, some special safety...
... and Working Techniques Assembling the Unit Adjusting the Throttle Cable 2 STIHL Incorporated California Exhaust and Evaporative 2 Emissions Control Warranty 11 Statement 13 Trademarks Fitting the Harness 14 4-MIX Engine 14 Fuel 15 Fueling 16 Winter Operation 18 Information Before You Start 18 Starting / Stopping the Engine 19 Operating Instructions 21 Replacing the Air Filter 21 Engine Management 22 Adjusting the Carburetor 22 Spark Plug 23 Spark Arresting Screen in this manual to operate your STIHL blower, it is a high-speed tool, some special safety...
Product Instruction Manual
Page 6
... that the controls and safety devices are useable with STIHL power tools, their hearing checked regularly. STIHL offers an optional kit for use an appropriate respirator for insertion in the end tube that it checked by STIHL for which may be interfering with ANSI Z 87.1 (or your STIHL servicing dealer. Wear sturdy boots with the specific STIHL model are recommended. Although certain unauthorized attachments are working...
... that the controls and safety devices are useable with STIHL power tools, their hearing checked regularly. STIHL offers an optional kit for use an appropriate respirator for insertion in the end tube that it checked by STIHL for which may be interfering with ANSI Z 87.1 (or your STIHL servicing dealer. Wear sturdy boots with the specific STIHL model are recommended. Although certain unauthorized attachments are working...
Product Instruction Manual
Page 7
... do not start or run the engine until the leak is not properly seated and tightened and you must repeat the above steps. 452BA116 KN BR 500, BR 550, BR 600 5 Grip the cap and check for fuel leakage while refueling and during operation. THE USE OF THE POWER TOOL Transporting the Power Tool Warning! Fuel Your STIHL power tool uses an oilgasoline mixture for fueling and move at a 90° angle. Fueling Instructions Warning...
... do not start or run the engine until the leak is not properly seated and tightened and you must repeat the above steps. 452BA116 KN BR 500, BR 550, BR 600 5 Grip the cap and check for fuel leakage while refueling and during operation. THE USE OF THE POWER TOOL Transporting the Power Tool Warning! Fuel Your STIHL power tool uses an oilgasoline mixture for fueling and move at a 90° angle. Fueling Instructions Warning...
Product Instruction Manual
Page 8
... the fuel filler cap by the fan wheel, check the fan housing for proper condition and operation before starting , particularly the throttle trigger, setting lever and stop using the machine in your power tool. Such misalignment can cause an improperly tightened fuel filler cap to maintain a firm grip and properly control your Instruction Manual for repair. In order to contact the fan wheel). The throttle trigger must move freely and always spring back to...
... the fuel filler cap by the fan wheel, check the fan housing for proper condition and operation before starting , particularly the throttle trigger, setting lever and stop using the machine in your power tool. Such misalignment can cause an improperly tightened fuel filler cap to maintain a firm grip and properly control your Instruction Manual for repair. In order to contact the fan wheel). The throttle trigger must move freely and always spring back to...
Product Instruction Manual
Page 9
... further adjustments. For specific starting instructions, see the appropriate section of control, do not wrap the starter rope around the handle, keeping the control handle cradled between your power tool only outdoors in this procedure may damage the starter mechanism. Maintain good balance and secure footing. Do not let the grip snap back, but guide the starter rope to idle. Once the engine has started, immediately blip the throttle trigger, which...
... further adjustments. For specific starting instructions, see the appropriate section of control, do not wrap the starter rope around the handle, keeping the control handle cradled between your power tool only outdoors in this procedure may damage the starter mechanism. Maintain good balance and secure footing. Do not let the grip snap back, but guide the starter rope to idle. Once the engine has started, immediately blip the throttle trigger, which...
Product Instruction Manual
Page 11
... operate your gas/oil mix ratio is near dry brush, grass, wood chips or other parts of these Safety Precautions. Some STIHL power tools are equipped with the cooling process of others in the muffler. See the "Maintenance, Repair and Storing" section of the engine (e.g. Do not place the blower on the ground. Keep within calling distance of the muffler. An improperly mounted or damaged cylinder housing or...
... operate your gas/oil mix ratio is near dry brush, grass, wood chips or other parts of these Safety Precautions. Some STIHL power tools are equipped with the cooling process of others in the muffler. See the "Maintenance, Repair and Storing" section of the engine (e.g. Do not place the blower on the ground. Keep within calling distance of the muffler. An improperly mounted or damaged cylinder housing or...
Product Instruction Manual
Page 12
... nonapproved replacement parts were used, STIHL may cause serious or fatal injury. Warning! never operate your power tool if the screen is damaged, missing or modified. Forest Service, may cause a fire. Store the power tool in this instruction manual. Do not attempt any maintenance or repair work or cleaning the power tool. Warning! Use the specified spark plug and make sure it must be securely attached.) A loose connection between spark plug terminal and the ignition wire...
... nonapproved replacement parts were used, STIHL may cause serious or fatal injury. Warning! never operate your power tool if the screen is damaged, missing or modified. Forest Service, may cause a fire. Store the power tool in this instruction manual. Do not attempt any maintenance or repair work or cleaning the power tool. Warning! Use the specified spark plug and make sure it must be securely attached.) A loose connection between spark plug terminal and the ignition wire...
Product Instruction Manual
Page 17
... STIHL twostroke engine oil at a mix ratio of control and / or contact with the running cutting tool, do not fill fuel containers that are sitting in or on the ground before filling. it may increase engine temperatures. To reduce the risk of personal injury from your power tool and make proper adjustments and repairs. This problem can cause running problems and major damage in STIHL engines. We recommend STIHL HP Ultra 2-Cycle Engine Oil...
... STIHL twostroke engine oil at a mix ratio of control and / or contact with the running cutting tool, do not fill fuel containers that are sitting in or on the ground before filling. it may increase engine temperatures. To reduce the risk of personal injury from your power tool and make proper adjustments and repairs. This problem can cause running problems and major damage in STIHL engines. We recommend STIHL HP Ultra 2-Cycle Engine Oil...
Product Instruction Manual
Page 24
... engine runs smoothly. N Check the spark arresting screen (country-specific) in the muffler and clean or replace if necessary. 452BA105 KN These machines have no longer necessary to provide an optimum fuel-air mixture in all locations and operating conditions. N Start and warm up the engine. 22 BR 500, BR 550, BR 600 HL N Carefully turn both adjusting screws counterclockwise as far as stop: N The high speed screw (H) is 3/4 turn open . English Engine Management Adjusting the Carburetor Exhaust emissions are controlled...
... engine runs smoothly. N Check the spark arresting screen (country-specific) in the muffler and clean or replace if necessary. 452BA105 KN These machines have no longer necessary to provide an optimum fuel-air mixture in all locations and operating conditions. N Start and warm up the engine. 22 BR 500, BR 550, BR 600 HL N Carefully turn both adjusting screws counterclockwise as far as stop: N The high speed screw (H) is 3/4 turn open . English Engine Management Adjusting the Carburetor Exhaust emissions are controlled...
Product Instruction Manual
Page 25
... the idle speed screw (LA) after approx. 100 operating hours or earlier if the electrodes are badly eroded. At sea level N Turn high speed screw (H) counterclockwise (richer) - Wrong fuel mix (too much engine oil in Mountains or at part throttle etc.) affect the condition of LA screw has been corrected, poor acceleration Idle setting is not satisfactory when operating at high altitude or at idling speed, first check the spark plug. N Unscrew the spark plug (2). BR 500, BR 550, BR 600...
... the idle speed screw (LA) after approx. 100 operating hours or earlier if the electrodes are badly eroded. At sea level N Turn high speed screw (H) counterclockwise (richer) - Wrong fuel mix (too much engine oil in Mountains or at part throttle etc.) affect the condition of LA screw has been corrected, poor acceleration Idle setting is not satisfactory when operating at high altitude or at idling speed, first check the spark plug. N Unscrew the spark plug (2). BR 500, BR 550, BR 600...
Product Instruction Manual
Page 30
... 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 Check and adjust if necessary after 139 hours of operation X Combustion chamber Decoke after first 139 hours of operating, then every 150 hours X Sparl arresting screen2) in muffler Check Clean or replace X X All accessible 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 English Maintenance...
... 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 Check and adjust if necessary after 139 hours of operation X Combustion chamber Decoke after first 139 hours of operating, then every 150 hours X Sparl arresting screen2) in muffler Check Clean or replace X X All accessible 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 English Maintenance...
Product Instruction Manual
Page 31
The following intervals apply to normal operating conditions only. Blower air intake screen Check Clean Throttle cable Adjust Safety labels Replace 1) STIHL recommends a STIHL servicing dealer. 2) not in all versions, market-specific X X before starting work after each refueling stop weekly monthly every 12 months if problem if damaged if required English X X X BR 500, BR 550, BR 600 29 If your daily working time is longer or operating conditions are difficult (very dusty work or daily after finishing work area, etc.), shorten the specified intervals accordingly.
The following intervals apply to normal operating conditions only. Blower air intake screen Check Clean Throttle cable Adjust Safety labels Replace 1) STIHL recommends a STIHL servicing dealer. 2) not in all versions, market-specific X X before starting work after each refueling stop weekly monthly every 12 months if problem if damaged if required English X X X BR 500, BR 550, BR 600 29 If your daily working time is longer or operating conditions are difficult (very dusty work or daily after finishing work area, etc.), shorten the specified intervals accordingly.
Product Instruction Manual
Page 33
... the number of the pull starter, for starting by enriching mixture. 18. Definitions 1. 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. Spark Plug Boot Connects the spark plug with Spark Arresting Screen) Muffler reduces exhaust noises and diverts exhaust gases away from operator. Blower Tube (BR 500) Directs the airstream. 4. Blower Tube (BR 500 / 550...
... the number of the pull starter, for starting by enriching mixture. 18. Definitions 1. 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. Spark Plug Boot Connects the spark plug with Spark Arresting Screen) Muffler reduces exhaust noises and diverts exhaust gases away from operator. Blower Tube (BR 500) Directs the airstream. 4. Blower Tube (BR 500 / 550...
Product Instruction Manual
Page 35
... Emission Control Warranty Statement Not for small non road engines. new 1997 and later model year small off-road equipment engines must be designed, built and equipped, at the time of sale, to abuse, neglect, improper maintenance or unapproved modifications. STIHL Incorporated must be free from the date of sale to conform with U.S. Any replacement part or service that is defective, the part will repair your...
... Emission Control Warranty Statement Not for small non road engines. new 1997 and later model year small off-road equipment engines must be designed, built and equipped, at the time of sale, to abuse, neglect, improper maintenance or unapproved modifications. STIHL Incorporated must be free from the date of sale to conform with U.S. Any replacement part or service that is defective, the part will repair your...
Product Instruction Manual
Page 36
... is defective. The warranty repairs will be replaced by STIHL Incorporated STIHL Incorporated warrants to STIHL. The following list specifically defines the emission-related warranted parts: - Fuel Pump - Control Linkages - Magneto or Electronic Ignition System (Ignition Module) - Spark Plug - Catalytic Converter (if applicable) - Fasteners Where to make a Claim for replacement as required maintenance will be performed at the time of the recommended 2-stroke fuel-oil mixture (see also instruction "Fuel"). STIHL Incorporated also warrants to...
... is defective. The warranty repairs will be replaced by STIHL Incorporated STIHL Incorporated warrants to STIHL. The following list specifically defines the emission-related warranted parts: - Fuel Pump - Control Linkages - Magneto or Electronic Ignition System (Ignition Module) - Spark Plug - Catalytic Converter (if applicable) - Fasteners Where to make a Claim for replacement as required maintenance will be performed at the time of the recommended 2-stroke fuel-oil mixture (see also instruction "Fuel"). STIHL Incorporated also warrants to...
Product Instruction Manual
Page 37
... Emissions Control Warranty Statement For California only Your Warranty Rights and Obligations The California Air Resources Board (CARB) and STIHL Incorporated are responsible for the period listed below provided there has been no cost 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 System (Ignition Module), Spark Plug, Catalytic Converter (if applicable), Fuel Tank, Fuel Cap, Fuel Line, Fuel Line Fittings, Clamps, Fasteners. Owner's Warranty...
... Emissions Control Warranty Statement For California only Your Warranty Rights and Obligations The California Air Resources Board (CARB) and STIHL Incorporated are responsible for the period listed below provided there has been no cost 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 System (Ignition Module), Spark Plug, Catalytic Converter (if applicable), Fuel Tank, Fuel Cap, Fuel Line, Fuel Line Fittings, Clamps, Fasteners. Owner's Warranty...
Product Instruction Manual
Page 38
... engine is designed, built and equipped, at no cost to STIHL Inc., 536 Viking Drive, P.O. English you can write to the owner. Repair or replacement of sale, to the first scheduled replacement, the part must be used . Any manufacturer approved or equivalent replacement part may not be performed at a warranty station at the time of any warranty maintenance or repairs on the date the utility equipment engine is free...
... engine is designed, built and equipped, at no cost to STIHL Inc., 536 Viking Drive, P.O. English you can write to the owner. Repair or replacement of sale, to the first scheduled replacement, the part must be used . Any manufacturer approved or equivalent replacement part may not be performed at a warranty station at the time of any warranty maintenance or repairs on the date the utility equipment engine is free...
Product Instruction Manual
Page 39
... orange-grey (U.S. damages to any authorized STIHL servicing dealer and present the signed STIHL product registration card, or the print-out of the electronic product registration. Emission Warranty Parts List Air Filter, Carburetor, Fuel Pump, Choke (Cold Start Enrichment System), Control Linkages, Intake Manifold, Magneto or Electronic Ignition System (Ignition Module), Spark Plug, Catalytic Converter (if applicable), Fuel Tank, Fuel Cap, Fuel Line, Fuel Line Fittings, Clamps, Fasteners Where to make a Claim for repair or replacement of the...
... orange-grey (U.S. damages to any authorized STIHL servicing dealer and present the signed STIHL product registration card, or the print-out of the electronic product registration. Emission Warranty Parts List Air Filter, Carburetor, Fuel Pump, Choke (Cold Start Enrichment System), Control Linkages, Intake Manifold, Magneto or Electronic Ignition System (Ignition Module), Spark Plug, Catalytic Converter (if applicable), Fuel Tank, Fuel Cap, Fuel Line, Fuel Line Fittings, Clamps, Fasteners Where to make a Claim for repair or replacement of the...
Technical Guide
Page 3
... position n . the throttle trigger can be set on a central control area. Set the starting throttle position n after the throttle trigger is continuously ready to operate, and the blower can be locked at least five times. . at the latest, set the setting lever to #. . Setting lever (1) . Set the choke knob manually to idle: . Throttle trigger (2) Engine stop pulse to shut off the blower. . Press the fuel pump bulb at three levels: 1/3 gas, 2/3 gas and full throttle. . Pull the throttle trigger - Technical Information 08.2005 Page 3 1.2 Control handle...
... position n . the throttle trigger can be set on a central control area. Set the starting throttle position n after the throttle trigger is continuously ready to operate, and the blower can be locked at least five times. . at the latest, set the setting lever to #. . Setting lever (1) . Set the choke knob manually to idle: . Throttle trigger (2) Engine stop pulse to shut off the blower. . Press the fuel pump bulb at three levels: 1/3 gas, 2/3 gas and full throttle. . Pull the throttle trigger - Technical Information 08.2005 Page 3 1.2 Control handle...
Technical Guide
Page 7
...limitation ensures greater operating safety and maintenance of the high-speed adjusting screw (H) and the low-speed adjusting screw (L) is limited by limiter caps (approx. 3/4 turn). This lengthens the valve opening time, which reduces the compression Cam disk when the engine has started: 1.8 Ignition system . Choke knob with spark arresting screen, depending on the starter rope. Low power-up threshold 1.9 Air filter . Two-chamber muffler with integrated starting ): 1.7 Carburetor . Accelerator pump for long filter service life . Large-area paper air filter for faster...
...limitation ensures greater operating safety and maintenance of the high-speed adjusting screw (H) and the low-speed adjusting screw (L) is limited by limiter caps (approx. 3/4 turn). This lengthens the valve opening time, which reduces the compression Cam disk when the engine has started: 1.8 Ignition system . Choke knob with spark arresting screen, depending on the starter rope. Low power-up threshold 1.9 Air filter . Two-chamber muffler with integrated starting ): 1.7 Carburetor . Accelerator pump for long filter service life . Large-area paper air filter for faster...
