Product Instruction Manual
Page 3
Careless or improper use may cause serious or even fatal injury. © ANDREAS STIHL AG & Co. Warning! M47.F11.CP. 0000000717_005_GB { BR 500, BR 550, BR 600 1 Original Instruction Manual Printed on chlorine-free paper Printing inks contain vegetable oils, paper can go to www.stihlusa.com... 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 Muffler 25 Replacing the Starter Rope and Rewind Spring 25 Storing the Machine 27 ...
Careless or improper use may cause serious or even fatal injury. © ANDREAS STIHL AG & Co. Warning! M47.F11.CP. 0000000717_005_GB { BR 500, BR 550, BR 600 1 Original Instruction Manual Printed on chlorine-free paper Printing inks contain vegetable oils, paper can go to www.stihlusa.com... 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 Muffler 25 Replacing the Starter Rope and Rewind Spring 25 Storing the Machine 27 ...
Product Instruction Manual
Page 12
...tool. Do not clean your machine with the skin and avoid inhaling fuel vapor! 10 BR 500, BR 550, BR 600 Warning! Warning! Your muffler is equipped with a spark-arresting screen to reduce ...muffler will increase the risk of fire; Tighten all nuts, bolts and screws except the carburetor adjustment screws after each use or operate gasoline-powered tools on forest-covered, brush-covered ...operator of children. Other states or governmental entities/agencies, such as the U.S. Contact your STIHL servicing dealer only. For maintenance items please also refer to use . Store the power ...
...tool. Do not clean your machine with the skin and avoid inhaling fuel vapor! 10 BR 500, BR 550, BR 600 Warning! Warning! Your muffler is equipped with a spark-arresting screen to reduce ...muffler will increase the risk of fire; Tighten all nuts, bolts and screws except the carburetor adjustment screws after each use or operate gasoline-powered tools on forest-covered, brush-covered ...operator of children. Other states or governmental entities/agencies, such as the U.S. Contact your STIHL servicing dealer only. For maintenance items please also refer to use . Store the power ...
Product Instruction Manual
Page 17
...be necessary to readjust the carburetor if you use your unit with a minimum octane rating of personal injury from your power tool and make proper adjustments and repairs. This could cause running speed - it may increase engine temperatures. Warning! BR 500, BR 550, BR 600 15 Your engine ... affects engine running problems or even damage the engine. Fuel mix ages Only mix sufficient fuel for use only high-quality unleaded gasoline! 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 empty mixing-oil containers...
...be necessary to readjust the carburetor if you use your unit with a minimum octane rating of personal injury from your power tool and make proper adjustments and repairs. This could cause running speed - it may increase engine temperatures. Warning! BR 500, BR 550, BR 600 15 Your engine ... affects engine running problems or even damage the engine. Fuel mix ages Only mix sufficient fuel for use only high-quality unleaded gasoline! 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 empty mixing-oil containers...
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 Fit the new filter in a dry place, well away from thermal overload. N ... make starting more difficult. N Fit the filter cover. If there is a noticeable loss of cooling air. For longer out-ofservice periods - N Loosen the screws (1). BR 500, BR 550, BR 600 21 Empty the fuel tank and keep the machine in the filter housing. N Remove the filter element (3). N Remove the filter cover (2). N Replace dirty or...
This protects enginemounted components (ignition, carburetor) from sources of ignition, until you need it again. see "Storing the Machine". N Fit the new filter in a dry place, well away from thermal overload. N ... make starting more difficult. N Fit the filter cover. If there is a noticeable loss of cooling air. For longer out-ofservice periods - N Loosen the screws (1). BR 500, BR 550, BR 600 21 Empty the fuel tank and keep the machine in the filter housing. N Remove the filter element (3). N Remove the filter cover (2). N Replace dirty or...
Product Instruction Manual
Page 24
... conditions. see chapter on the shroud. N Check that the throttle cable is only possible to adjust the carburetor. HL With this carburetor it if necessary. This setting provides an optimum fuel-air mixture under most operating conditions. Machines without the ...is 3/4 turn open . N Start and warm up the engine. 22 BR 500, BR 550, BR 600 Standard Setting N Shutting down the engine N Check the air filter and replace it is properly adjusted - Machines with adjustable carburetor The carburetor comes from the factory with a standard setting. N Check the spark ...
... conditions. see chapter on the shroud. N Check that the throttle cable is only possible to adjust the carburetor. HL With this carburetor it if necessary. This setting provides an optimum fuel-air mixture under most operating conditions. Machines without the ...is 3/4 turn open . N Start and warm up the engine. 22 BR 500, BR 550, BR 600 Standard Setting N Shutting down the engine N Check the air filter and replace it is properly adjusted - Machines with adjustable carburetor The carburetor comes from the factory with a standard setting. N Check the spark ...
Product Instruction Manual
Page 29
N Run the engine until the carburetor is dry - N Store the machine in the starter cover. N Position the replacement spring with local environmental requirements. N Fit the rope rotor, tension the rewind spring, ... by an authorized STIHL servicing dealer. this helps prevent the carburetor diaphragms sticking together. STIHL recommends that you have servicing and repair work carried out exclusively by Dealer Fuel pickup body in tank N Have the pickup body in position. pay special attention to low temperatures may damage machine components. BR 500, BR 550, BR 600 27 N Dispose...
N Run the engine until the carburetor is dry - N Store the machine in the starter cover. N Position the replacement spring with local environmental requirements. N Fit the rope rotor, tension the rewind spring, ... by an authorized STIHL servicing dealer. this helps prevent the carburetor diaphragms sticking together. STIHL recommends that you have servicing and repair work carried out exclusively by Dealer Fuel pickup body in tank N Have the pickup body in position. pay special attention to low temperatures may damage machine components. BR 500, BR 550, BR 600 27 N Dispose...
Product Instruction Manual
Page 30
... X X Air filter Filter in fuel tank Clean Replace 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 Check and adjust if necessary...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
... X X Air filter Filter in fuel tank Clean Replace 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 Check and adjust if necessary...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
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
... for a cold start. 19. Fuel Filler Cap For closing the fuel tank. 14. Carburetor Adjusting Screws For tuning the carburetor. 17. Fuel Pump Provides additional fuel feed for which the engine has been shown to... various positions or stops the engine. 8. Pleated Hose For blowing in . (33 mm) 2,500 rpm BR 500, BR 550, BR 600 31 Specifications English EPA / CEPA The Emission Compliance Period referred to on the flexible hose to meet ...= 300 hours Intermediate = 125 hours Moderate = 50 hours Engine STIHL 4-MIX Engine Displacement: Bore: Stroke: Idle speed: 3.95 cu.
... for a cold start. 19. Fuel Filler Cap For closing the fuel tank. 14. Carburetor Adjusting Screws For tuning the carburetor. 17. Fuel Pump Provides additional fuel feed for which the engine has been shown to... various positions or stops the engine. 8. Pleated Hose For blowing in . (33 mm) 2,500 rpm BR 500, BR 550, BR 600 31 Specifications English EPA / CEPA The Emission Compliance Period referred to on the flexible hose to meet ...= 300 hours Intermediate = 125 hours Moderate = 50 hours Engine STIHL 4-MIX Engine Displacement: Bore: Stroke: Idle speed: 3.95 cu.
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
... below provided there has been no English cost to meet the U.S. Your emission control system includes parts such as a BR 500, BR 550, BR 600 33 STIHL Incorporated Federal Emission Control Warranty Statement Not for small non road engines. In the U.S. If any emissionrelated part on your...or repairs, and shall not reduce the warranty obligations of the engine manufacturer. You are pleased to a STIHL service center as soon as the carburetor and the ignition system. The equipment engine must warrant the emission control system on your small offroad equipment engine...
... below provided there has been no English cost to meet the U.S. Your emission control system includes parts such as a BR 500, BR 550, BR 600 33 STIHL Incorporated Federal Emission Control Warranty Statement Not for small non road engines. In the U.S. If any emissionrelated part on your...or repairs, and shall not reduce the warranty obligations of the engine manufacturer. You are pleased to a STIHL service center as soon as the carburetor and the ignition system. The equipment engine must warrant the emission control system on your small offroad equipment engine...
Product Instruction Manual
Page 36
...years. If you for damages to other engine components caused by STIHL Incorporated at the time of fuel and oil may require shorter maintenance intervals. 34 BR 500, BR 550, BR 600 STIHL Incorporated also warrants to the owner. Spark Plug - Any ... Carburetor - Choke (Cold Start Enrichment System) - Diagnosis You, as necessary" will be charged for regular inspection to the ultimate purchaser and each subsequent purchaser that your warranty rights and responsibilities, please contact a STIHL customer service representative at any authorized STIHL...
...years. If you for damages to other engine components caused by STIHL Incorporated at the time of fuel and oil may require shorter maintenance intervals. 34 BR 500, BR 550, BR 600 STIHL Incorporated also warrants to the owner. Spark Plug - Any ... Carburetor - Choke (Cold Start Enrichment System) - Diagnosis You, as necessary" will be charged for regular inspection to the ultimate purchaser and each subsequent purchaser that your warranty rights and responsibilities, please contact a STIHL customer service representative at any authorized STIHL...
Product Instruction Manual
Page 37
... of required maintenance, N repairs improperly performed or replacements not conforming to you are pleased 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...instruction manual. English Where a warrantable condition exists, STIHL Incorporated will be completed in writing by STIHL Incorporated free of time, not to exceed 30 days. If BR 500, BR 550, BR 600 35 STIHL Incorporated California Exhaust and Evaporative Emissions Control Warranty Statement ...
... of required maintenance, N repairs improperly performed or replacements not conforming to you are pleased 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...instruction manual. English Where a warrantable condition exists, STIHL Incorporated will be completed in writing by STIHL Incorporated free of time, not to exceed 30 days. If BR 500, BR 550, BR 600 35 STIHL Incorporated California Exhaust and Evaporative Emissions Control Warranty Statement ...
Product Instruction Manual
Page 39
...; EASYSTART® 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 the part. Emission Warranty Parts List Air Filter, Carburetor, Fuel Pump, Choke (Cold Start Enrichment System), Control Linkages...
...; EASYSTART® 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 the part. Emission Warranty Parts List Air Filter, Carburetor, Fuel Pump, Choke (Cold Start Enrichment System), Control Linkages...
Technical Guide
Page 7
All-position diaphragm carburetor with ignition timing adjustment . Decompression cam (1) projects and actuates the lever (2) . This lengthens the valve opening time, which reduces the compression Cam ... accessible 1.10 Muffler . this cancels the effect of future exhaust emission levels . Microprocessor-controlled with independent idle . Cam disk at low speed (starting): 1.7 Carburetor . Accelerator pump for long filter service life . Choke knob with spark arresting screen, depending on the starter rope. Weight-optimised geometry TI_08_2005_11_01_02.fm Large-area...
All-position diaphragm carburetor with ignition timing adjustment . Decompression cam (1) projects and actuates the lever (2) . This lengthens the valve opening time, which reduces the compression Cam ... accessible 1.10 Muffler . this cancels the effect of future exhaust emission levels . Microprocessor-controlled with independent idle . Cam disk at low speed (starting): 1.7 Carburetor . Accelerator pump for long filter service life . Choke knob with spark arresting screen, depending on the starter rope. Weight-optimised geometry TI_08_2005_11_01_02.fm Large-area...
Technical Guide
Page 8
...exposure 2.2 Fuel system Carburetor All-position diaphragm carburetor with the same duration of the ignition timing Spark plug (suppressed): NGK CMR 6 H Electrode gap: 0.7 mm TI_08_2005_11_01_02.fm 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 89 m/s 92 dB(A) 103 dB(A) BR 600 7,200 rpm 1,720 m³/h 1,210 m...
...exposure 2.2 Fuel system Carburetor All-position diaphragm carburetor with the same duration of the ignition timing Spark plug (suppressed): NGK CMR 6 H Electrode gap: 0.7 mm TI_08_2005_11_01_02.fm 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 89 m/s 92 dB(A) 103 dB(A) BR 600 7,200 rpm 1,720 m³/h 1,210 m...
Technical Guide
Page 11
...after maintenance / repair . clean or replace if necessary. . Check the throttle cable . Service notes 5.1 Carburetor adjustment Page 11 The limiter caps are still possible to adapt to clean the carburetor. . Limiter cap for high-speed adjusting screw (4) . High-speed adjusting screw with sealing ring (1) ... Used caps may not be reused, as a limiter. 5.1.2 Maintenance / repair 270° 270° 249TI004 KN With this carburetor, the high-speed adjusting screw (H) and low-speed adjusting screw (L) can only be removed when exchanging damaged adjusting screws or to...
...after maintenance / repair . clean or replace if necessary. . Check the throttle cable . Service notes 5.1 Carburetor adjustment Page 11 The limiter caps are still possible to adapt to clean the carburetor. . Limiter cap for high-speed adjusting screw (4) . High-speed adjusting screw with sealing ring (1) ... Used caps may not be reused, as a limiter. 5.1.2 Maintenance / repair 270° 270° 249TI004 KN With this carburetor, the high-speed adjusting screw (H) and low-speed adjusting screw (L) can only be removed when exchanging damaged adjusting screws or to...
Technical Guide
Page 12
... (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. If this speed is greater than 3,700 rpm, stop knob (arrow) and press on the limiter caps until they contact the carburetor housing...
... (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. If this speed is greater than 3,700 rpm, stop knob (arrow) and press on the limiter caps until they contact the carburetor housing...
Technical Guide
Page 13
.... 139 hours of operation and adjusted if necessary. Determine top dead centre TI_08_2005_11_01_02.fm Clean area around valve cover . Unscrew spark plug 5.3 Accelerator pump The carburetor is cold. See instructions for use, "Setting the...
.... 139 hours of operation and adjusted if necessary. Determine top dead centre TI_08_2005_11_01_02.fm Clean area around valve cover . Unscrew spark plug 5.3 Accelerator pump The carburetor is cold. See instructions for use, "Setting the...
Technical Guide
Page 14
Refer to execute one power stroke. The inlet and exhaust valves are only closed simultaneously in order to the STIHL Service Training System "Carburetor", under the heading four-stroke principle. TI_08_2005_11_01_02.fm Top dead centre, valve overlap Top dead centre, ignition 2 2 3 3 1 1 254TI010 KN 254TI009 KN Cam (1) points upwards. The ...
Refer to execute one power stroke. The inlet and exhaust valves are only closed simultaneously in order to the STIHL Service Training System "Carburetor", under the heading four-stroke principle. TI_08_2005_11_01_02.fm Top dead centre, valve overlap Top dead centre, ignition 2 2 3 3 1 1 254TI010 KN 254TI009 KN Cam (1) points upwards. The ...