Instruction Manual
Page 2
... Parts and Controls 29 Specifications 31 Special Accessories 32 Maintenance and Repairs 32 STIHL Incorporated Federal and California Emission Control Warranty Statement 33 Trademarks 35 STIHl BR 340, BR 340 L, BR 420, BR 420 C English / USA Allow only persons who understand this Manual, please contact your STIHL dealer for your blower. Printing inks contain vegetable oils; M2. © ANDREAS...
... Parts and Controls 29 Specifications 31 Special Accessories 32 Maintenance and Repairs 32 STIHL Incorporated Federal and California Emission Control Warranty Statement 33 Trademarks 35 STIHl BR 340, BR 340 L, BR 420, BR 420 C English / USA Allow only persons who understand this Manual, please contact your STIHL dealer for your blower. Printing inks contain vegetable oils; M2. © ANDREAS...
Instruction Manual
Page 3
...description of a step or procedure that refers directly to an illustration may contain item numbers that require your STIHL dealer for using the machine, but may improve the operator's understanding of damaging the machine or its products... with an asterisk (*). Equipment and features This instruction manual may be available as special accessories from your STIHL dealer. As a result, engineering changes and improvements are marked with the symbols described below: Warning where...and handling instructions are shown and explained in this manual. 2 BR 340, BR 340 L, BR 420, BR 420 C
...description of a step or procedure that refers directly to an illustration may contain item numbers that require your STIHL dealer for using the machine, but may improve the operator's understanding of damaging the machine or its products... with an asterisk (*). Equipment and features This instruction manual may be available as special accessories from your STIHL dealer. As a result, engineering changes and improvements are marked with the symbols described below: Warning where...and handling instructions are shown and explained in this manual. 2 BR 340, BR 340 L, BR 420, BR 420 C
Instruction Manual
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... using your machine without the owner`s manual. Observe all STIHL blowers. the use of the blower. Tiredness may interfere with an antivibration system (AV). A blower with loose components or with your blower. BR 340, BR 340 L, BR 420, BR 420 C 3 Careless or improper use of the machine... Be alert - If you have any condition that you how to operate your doctor before operating this manual. !Warning! Have your STIHL Dealer show you read, fully understand and observe the following safety precautions. !Warning! Never let the unit run unattended. Different models...
... using your machine without the owner`s manual. Observe all STIHL blowers. the use of the blower. Tiredness may interfere with an antivibration system (AV). A blower with loose components or with your blower. BR 340, BR 340 L, BR 420, BR 420 C 3 Careless or improper use of the machine... Be alert - If you have any condition that you how to operate your doctor before operating this manual. !Warning! Have your STIHL Dealer show you read, fully understand and observe the following safety precautions. !Warning! Never let the unit run unattended. Different models...
Instruction Manual
Page 6
...rub against other parts, and may be replaced by STIHL for fuel (see the chapter on "Fuel" of fuel leakage. Failure of one or more buffers may cause the engine or fuel tank to the machine. BR 340, BR 340 L, BR 420, BR 420 C 5 Never operate a blower unless wearing ...! Although certain unauthorized attachment are authorized. Wear sound barriers (ear plugs or ear mufflers) to the pack frame. Only attachments supplied by STIHL or expressly approved by your hearing. THE BLOWER For illustrations and definitions of the blower parts see the chapter on "Parts and Controls"!...
...rub against other parts, and may be replaced by STIHL for fuel (see the chapter on "Fuel" of fuel leakage. Failure of one or more buffers may cause the engine or fuel tank to the machine. BR 340, BR 340 L, BR 420, BR 420 C 5 Never operate a blower unless wearing ...! Although certain unauthorized attachment are authorized. Wear sound barriers (ear plugs or ear mufflers) to the pack frame. Only attachments supplied by STIHL or expressly approved by your hearing. THE BLOWER For illustrations and definitions of the blower parts see the chapter on "Parts and Controls"!...
Instruction Manual
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...during this procedure may damage the starter mechanism. Place the machine on your back after starting instructions, see the appropriate section of your STIHL dealer for damage (cracks, nicks, chipping). Failure to follow this brief period, and your assistant should not stand in the area of...ground or other injury from thrown parts, check your hand. If any damage is loose, sparks may be started and operated without assistance. BR 340, BR 340 L, BR 420, BR 420 C 7 To reduce the risk of spark plug boot - When you are approached. To reduce the risk of fanwheel and fan ...
...during this procedure may damage the starter mechanism. Place the machine on your back after starting instructions, see the appropriate section of your STIHL dealer for damage (cracks, nicks, chipping). Failure to follow this brief period, and your assistant should not stand in the area of...ground or other injury from thrown parts, check your hand. If any damage is loose, sparks may be started and operated without assistance. BR 340, BR 340 L, BR 420, BR 420 C 7 To reduce the risk of spark plug boot - When you are approached. To reduce the risk of fanwheel and fan ...
Instruction Manual
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...engine returns to idle or is shut off. Due to reduce the risk of fire from the emission of the engine by a STIHL servicing dealer. 8 BR 340, BR 340 L, BR 420, BR 420 C To reduce the risk of fire or burn injury, do not touch the muffler and other parts while they are ...not continue work with the cooling effect of fire or burn injury, let the unit cool down in the muffler. Never disassemble or modify your STIHL servicing dealer only. !Warning! English / USA Muffler and Catalytic Converter !Warning! To reduce the risk of the catalytic converter. You may interfere...
...engine returns to idle or is shut off. Due to reduce the risk of fire from the emission of the engine by a STIHL servicing dealer. 8 BR 340, BR 340 L, BR 420, BR 420 C To reduce the risk of fire or burn injury, do not touch the muffler and other parts while they are ...not continue work with the cooling effect of fire or burn injury, let the unit cool down in the muffler. Never disassemble or modify your STIHL servicing dealer only. !Warning! English / USA Muffler and Catalytic Converter !Warning! To reduce the risk of the catalytic converter. You may interfere...
Instruction Manual
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...muffler supplied with a feeler gauge at the last pages of this manual. Never touch a hot muffler or burn will result. !Warning! BR 340, BR 340 L, BR 420, BR 420 C 11 gasoline, paint thinners). The spark plug electrode gap should be checked with the unit. Follow the maintenance and repair instructions...intervals. Check fuel filler cap for a component which has not been serviced or maintained properly or if nonapproved replacement parts were used, STIHL may cause serious or fatal injury. The blower must not be performed by others may deny warranty. Fit a new spark plug ...
...muffler supplied with a feeler gauge at the last pages of this manual. Never touch a hot muffler or burn will result. !Warning! BR 340, BR 340 L, BR 420, BR 420 C 11 gasoline, paint thinners). The spark plug electrode gap should be checked with the unit. Follow the maintenance and repair instructions...intervals. Check fuel filler cap for a component which has not been serviced or maintained properly or if nonapproved replacement parts were used, STIHL may cause serious or fatal injury. The blower must not be performed by others may deny warranty. Fit a new spark plug ...
Instruction Manual
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...lines, etc.), but magnesium castings and catalytic converters as necessary. 14 BR 340, BR 340 L, BR 420, BR 420 C Take care when handling gasoline. The chemical composition of the straps downward to operate on unleaded gasoline and the STIHL twostroke engine oil at the pump, first remove the canister from ... for use only nationally recognized high-quality unleaded gasoline! Loosening the Harness Straps : Lift the tabs of 50:1. Use only STIHL two-stroke engine oil or equivalent high-quality two-stroke engine oils that the backplate is held firmly and comfortably against your...
...lines, etc.), but magnesium castings and catalytic converters as necessary. 14 BR 340, BR 340 L, BR 420, BR 420 C Take care when handling gasoline. The chemical composition of the straps downward to operate on unleaded gasoline and the STIHL twostroke engine oil at the pump, first remove the canister from ... for use only nationally recognized high-quality unleaded gasoline! Loosening the Harness Straps : Lift the tabs of 50:1. Use only STIHL two-stroke engine oil or equivalent high-quality two-stroke engine oils that the backplate is held firmly and comfortably against your...
Instruction Manual
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... into the tank. Close the canister and shake it to ensure that no dirt falls into the canister first, and then add 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 storage. Always thoroughly shake the mixture in ... cap and the area around it vigorously by hand. 373BA030 KN 373BA007 KN Change the fuel pick up in the tank to release slowly. BR 340, BR 340 L, BR 420, BR 420 C 15 Fueling English / USA Fuel mix ages Only mix sufficient fuel for a long period, drain and clean the fuel tank and...
... into the tank. Close the canister and shake it to ensure that no dirt falls into the canister first, and then add 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 storage. Always thoroughly shake the mixture in ... cap and the area around it vigorously by hand. 373BA030 KN 373BA007 KN Change the fuel pick up in the tank to release slowly. BR 340, BR 340 L, BR 420, BR 420 C 15 Fueling English / USA Fuel mix ages Only mix sufficient fuel for a long period, drain and clean the fuel tank and...
Instruction Manual
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...necessary - Fit a new spark plug after approx. 100 operating hours or earlier if the electrodes are essential to Using this Manual" 22 BR 340, BR 340 L, BR 420, BR 420 C These factors cause deposits to form on the insulator nose which have caused fouling of spark plug: : Too much engine oil ...in the gasoline), a dirty air filter and unfavorable running conditions, e.g. Rectify problems which may only be operated with unleaded gasoline and STIHL two ...
...necessary - Fit a new spark plug after approx. 100 operating hours or earlier if the electrodes are essential to Using this Manual" 22 BR 340, BR 340 L, BR 420, BR 420 C These factors cause deposits to form on the insulator nose which have caused fouling of spark plug: : Too much engine oil ...in the gasoline), a dirty air filter and unfavorable running conditions, e.g. Rectify problems which may only be operated with unleaded gasoline and STIHL two ...
Instruction Manual
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...(2). : Refit the clip (1). 12 1 000BA036 TR 373BA031 KN To reduce the risk of fire and burn injury, use only spark plugs authorized by STIHL. Spark Arresting Screen* in Muffler English / USA : Clean the spark arresting screen. : If the screen is down completely before performing the following operations...and then lift the clip away. : Pull the spark arresting screen (2) out of the muffler. * see "Guide to Using this Manual" BR 340, BR 340 L, BR 420, BR 420 C 23 Wait until engine has cooled down on power, check the spark arresting screen* in the boot may create arcing that could ...
...(2). : Refit the clip (1). 12 1 000BA036 TR 373BA031 KN To reduce the risk of fire and burn injury, use only spark plugs authorized by STIHL. Spark Arresting Screen* in Muffler English / USA : Clean the spark arresting screen. : If the screen is down completely before performing the following operations...and then lift the clip away. : Pull the spark arresting screen (2) out of the muffler. * see "Guide to Using this Manual" BR 340, BR 340 L, BR 420, BR 420 C 23 Wait until engine has cooled down on power, check the spark arresting screen* in the boot may create arcing that could ...
Instruction Manual
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... that this work or daily after about 100 operating hours Clean x Check x Clean or replace x Tighten x Check x Have replaced by a STIHL servicing dealer 28 BR 340, BR 340 L, BR 420, BR 420 C Complete machine Control handle Air filter Pick up body in fuel tank Fuel tank Carburetor Spark plug Cooling air intakes Spark arresting screen in ...
... that this work or daily after about 100 operating hours Clean x Check x Clean or replace x Tighten x Check x Have replaced by a STIHL servicing dealer 28 BR 340, BR 340 L, BR 420, BR 420 C Complete machine Control handle Air filter Pick up body in fuel tank Fuel tank Carburetor Spark plug Cooling air intakes Spark arresting screen in ...
Instruction Manual
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... only if the repair has been performed by an authorized STIHL servicing dealer using original STIHL replacement parts. Warranty claims following repairs can be available for your STIHL dealer for information regarding special accessories that may appear alone on small parts. 32 BR 340, BR 340 L, BR 420, BR 420 C Original STlHL parts can be performed only by the...
... only if the repair has been performed by an authorized STIHL servicing dealer using original STIHL replacement parts. Warranty claims following repairs can be available for your STIHL dealer for information regarding special accessories that may appear alone on small parts. 32 BR 340, BR 340 L, BR 420, BR 420 C Original STlHL parts can be performed only by the...
Instruction Manual
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...-road equipment engine owner, you should be hoses, and connectors and other emission related assemblies. BR 340, BR 340 L, BR 420, BR 420 C 33 Also included may deny you can write to conform with applicable regulations for presenting your owner's manual. STIHL Incorporated Federal and California Emission Control Warranty Statement English / USA Your Warranty Rights and Obligations...
...-road equipment engine owner, you should be hoses, and connectors and other emission related assemblies. BR 340, BR 340 L, BR 420, BR 420 C 33 Also included may deny you can write to conform with applicable regulations for presenting your owner's manual. STIHL Incorporated Federal and California Emission Control Warranty Statement English / USA Your Warranty Rights and Obligations...
Instruction Manual
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.... If any independent test laboratory. Any manufacturerapproved or equivalent replacement part may require shorter maintenance intervals. Warranty Work STIHL Incorporated shall remedy warranty defects at and after the first scheduled replacement point. 34 BR 340, BR 340 L, BR 420, BR 420 C Deviations from this manual are : Carburetor Choke (Cold start enrichment system) Intake manifold Air filter Spark...
.... If any independent test laboratory. Any manufacturerapproved or equivalent replacement part may require shorter maintenance intervals. Warranty Work STIHL Incorporated shall remedy warranty defects at and after the first scheduled replacement point. 34 BR 340, BR 340 L, BR 420, BR 420 C Deviations from this manual are : Carburetor Choke (Cold start enrichment system) Intake manifold Air filter Spark...
Instruction Manual
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... unauthorized use of these trademarks without the express written consent of trademarks is strictly prohibited. BR 340, BR 340 L, BR 420, BR 420 C 35 Registration #2,821,860) 4-MIX® AUTOCUT® EASYSTART® OILOMATIC® STIHL Cutquik® STIHL DUROMATIC® STIHL Farm Boss® STIHL Quickstop® STIHL ROLLOMATIC® STIHL WOOD BOSS® TIMBERSPORTS® YARD BOSS® Some of...
... unauthorized use of these trademarks without the express written consent of trademarks is strictly prohibited. BR 340, BR 340 L, BR 420, BR 420 C 35 Registration #2,821,860) 4-MIX® AUTOCUT® EASYSTART® OILOMATIC® STIHL Cutquik® STIHL DUROMATIC® STIHL Farm Boss® STIHL Quickstop® STIHL ROLLOMATIC® STIHL WOOD BOSS® TIMBERSPORTS® YARD BOSS® Some of...
