Instruction Manual
Page 2
... time-to Using this Manual" STIHl BR 45 english / USA Allow only persons who understand this Manual. !Warning! Careless or improper use may cause serious or even fatal injury. M2,5. Contents Guide to Using this Manual 2 Safety Precautions 3 Assembling the Blower 10 Fitting Backpack 13 Fuel 14 Fueling 15 Starting / Stopping the Engine 15 Operating Instructions 18 Using the Blower 19 Cleaning the Air Filter 20 Motor Management 20 Adjusting the Carburetor 21 Catalytic Converter 22 Checking the Spark Plug...
... time-to Using this Manual" STIHl BR 45 english / USA Allow only persons who understand this Manual. !Warning! Careless or improper use may cause serious or even fatal injury. M2,5. Contents Guide to Using this Manual 2 Safety Precautions 3 Assembling the Blower 10 Fitting Backpack 13 Fuel 14 Fueling 15 Starting / Stopping the Engine 15 Operating Instructions 18 Using the Blower 19 Cleaning the Air Filter 20 Motor Management 20 Adjusting the Carburetor 21 Catalytic Converter 22 Checking the Spark Plug...
Instruction Manual
Page 3
... manual may be responsible for changes, modifications or improvements not covered in this manual may improve the operator's understanding of the situation and result in different ways: : Step or procedure without direct reference to the operating instructions, this manual. 2 BR 45 As a result, engineering changes and improvements are marked thus *. In addition to an illustration. Such paragraphs are supported by illustrations. The operating and handling instructions...
... manual may be responsible for changes, modifications or improvements not covered in this manual may improve the operator's understanding of the situation and result in different ways: : Step or procedure without direct reference to the operating instructions, this manual. 2 BR 45 As a result, engineering changes and improvements are marked thus *. In addition to an illustration. Such paragraphs are supported by illustrations. The operating and handling instructions...
Instruction Manual
Page 5
.... 4 BR 45 Wear sound barriers (ear plugs or ear mufflers) to protect your blower in any of movement. !Warning! Although certain unauthorized attachment are authorized. If any way. Wear sturdy shoes with the inhalation of their hearing checked regulary. Blower noise may be drawn into the air intake. Continual and regular users should monitor closely the condition of dust, use a face filter...
.... 4 BR 45 Wear sound barriers (ear plugs or ear mufflers) to protect your blower in any of movement. !Warning! Although certain unauthorized attachment are authorized. If any way. Wear sturdy shoes with the inhalation of their hearing checked regulary. Blower noise may be drawn into the air intake. Continual and regular users should monitor closely the condition of dust, use a face filter...
Instruction Manual
Page 6
... your owner`s manual). !Warning! Use extreme caution when handling gasoline or fuel mix. Relieve fuel tank pressure by a spark or other parts, and may be replaced by your size before refueling. Wipe off any fire or flame near the fuel. To do not start or run the engine until it has been completely removed from an improperly tightened fuel cap, correctly position and tighten the fuel cap in the fuel tank opening with this happens, change...
... your owner`s manual). !Warning! Use extreme caution when handling gasoline or fuel mix. Relieve fuel tank pressure by a spark or other parts, and may be replaced by your size before refueling. Wipe off any fire or flame near the fuel. To do not start or run the engine until it has been completely removed from an improperly tightened fuel cap, correctly position and tighten the fuel cap in the fuel tank opening with this happens, change...
Instruction Manual
Page 7
.... Never operate your owner`s manual. You should always inspect your unit before starting instructions, see the appropriate section of eye or other solid surface in the muffler. Throttle trigger must repeat the above steps. Stop the engine immediately if you pull the starter grip, don`t wrap the starter rope around your fanwheel and fan housing for repair. - Catalytic converter !Warning! In order to idle position when released...
.... Never operate your owner`s manual. You should always inspect your unit before starting instructions, see the appropriate section of eye or other solid surface in the muffler. Throttle trigger must repeat the above steps. Stop the engine immediately if you pull the starter grip, don`t wrap the starter rope around your fanwheel and fan housing for repair. - Catalytic converter !Warning! In order to idle position when released...
Instruction Manual
Page 8
... locate it where the muffler is running. english / USA !Warning! the trunk of another person may interfere with a damaged or improperly mounted cylinder housing or a damaged/ deformed muffler shell. Operate the blower under good visibility and daylight conditions only. !Warning! Keep the space behind and beside the engine clear at idle speed during this brief period, and your muffler serviced and repaired by a STIHL Servicing...
... locate it where the muffler is running. english / USA !Warning! the trunk of another person may interfere with a damaged or improperly mounted cylinder housing or a damaged/ deformed muffler shell. Operate the blower under good visibility and daylight conditions only. !Warning! Keep the space behind and beside the engine clear at idle speed during this brief period, and your muffler serviced and repaired by a STIHL Servicing...
Instruction Manual
Page 10
... replacement parts were used, STIHL may cause loss of moisture, pitch, oil or grease. !Warning! A worn or damaged muffler is in this manual. !Warning! BR 45 9 Pay attention to have your machine under control at your owner's manual. Keep your hand in good condition and free of hearing. Never touch a hot muffler or burn will result. However if you claim warranty for maintenance and repair. Remember that the muffler...
... replacement parts were used, STIHL may cause loss of moisture, pitch, oil or grease. !Warning! A worn or damaged muffler is in this manual. !Warning! BR 45 9 Pay attention to have your machine under control at your owner's manual. Keep your hand in good condition and free of hearing. Never touch a hot muffler or burn will result. However if you claim warranty for maintenance and repair. Remember that the muffler...
Instruction Manual
Page 11
... a few days, always empty the fuel tank. 1 1 1 : Loosen the screws (1). 374BA002 KN 374BA003 KN 4 5 3 2 4 : Push the elbow (2) with a feeler gauge at least every 50 operating hours and reset if necessary. Keep spark plug and wire connection tight and clean. For any part of children. The spark plug electrode gap should be checked with lug (3) into the fan housing stub (5) as far as the stops (4). 10 BR 45
... a few days, always empty the fuel tank. 1 1 1 : Loosen the screws (1). 374BA002 KN 374BA003 KN 4 5 3 2 4 : Push the elbow (2) with a feeler gauge at least every 50 operating hours and reset if necessary. Keep spark plug and wire connection tight and clean. For any part of children. The spark plug electrode gap should be checked with lug (3) into the fan housing stub (5) as far as the stops (4). 10 BR 45
Instruction Manual
Page 15
... aircooled engine oils with a catalytic converter. Take care when handling gasoline. Fuel with a minimum octane rating of the piston seizure and damage to the engine. Use only STIHL 50:1 heavy-duty engine oil or equivalent quality two stroke engine oils for mixing. Gasoline Oil (STIHL 50:1 or equivalent branded TC oils) US gal. 1 2 1/2 5 US fl.oz 2.6 6.4 12.8 Dispose empty mixing-oil canisters only at authorized disposal locations. 14 BR 45...
... aircooled engine oils with a catalytic converter. Take care when handling gasoline. Fuel with a minimum octane rating of the piston seizure and damage to the engine. Use only STIHL 50:1 heavy-duty engine oil or equivalent quality two stroke engine oils for mixing. Gasoline Oil (STIHL 50:1 or equivalent branded TC oils) US gal. 1 2 1/2 5 US fl.oz 2.6 6.4 12.8 Dispose empty mixing-oil canisters only at authorized disposal locations. 14 BR 45...
Instruction Manual
Page 16
After fueling, tighten fuel cap as securely as to allow any throttle position between idle (lower stop) and full throttle (upper stop switch (1) to # : Move the setting lever (2) to release slowly. see chapter "Safety Precautions". : Slide the stop ). 373BA009 KN BR 45 15 Change the fuel pick up in the canister before fueling your machine for a long period, drain and clean the fuel tank and run engine until carburetor is the starting throttle position. this is...
After fueling, tighten fuel cap as securely as to allow any throttle position between idle (lower stop) and full throttle (upper stop switch (1) to # : Move the setting lever (2) to release slowly. see chapter "Safety Precautions". : Slide the stop ). 373BA009 KN BR 45 15 Change the fuel pick up in the canister before fueling your machine for a long period, drain and clean the fuel tank and run engine until carburetor is the starting throttle position. this is...
Instruction Manual
Page 19
...-throttle operation, allow engine to run at high revs (full throttle off the spark plug. : Open the throttle fully. : Pull the starter rope several times to e - During break-in period A factory new machine should not be dissipated by flow of nuts and screws (not adjusting screws) at regular intervals and retighten as necessary. 18 BR 45 Check tightness of cooling air. even if the engine is filled with fuel. : Now start the engine. As all moving parts...
...-throttle operation, allow engine to run at high revs (full throttle off the spark plug. : Open the throttle fully. : Pull the starter rope several times to e - During break-in period A factory new machine should not be dissipated by flow of nuts and screws (not adjusting screws) at regular intervals and retighten as necessary. 18 BR 45 Check tightness of cooling air. even if the engine is filled with fuel. : Now start the engine. As all moving parts...
Instruction Manual
Page 22
.... Standard Setting L H : Shut off the engine. : Turn high speed screw (H) counter- BR 45 21 At sea level : Turn high speed screw (H) counterclockwise (richer) no further than stop (max. 3/4 turn). : Open the low speed screw (L) one full turn. 295BA044 KN Fine Tuning for Operation at High Altitude or at sea level: : Check air filter and clean if necessary. : Warm up the engine. This setting provides an optimum fuel-air mixture under most operating conditions. clockwise as far as stop . Adjusting the Carburetor english...
.... Standard Setting L H : Shut off the engine. : Turn high speed screw (H) counter- BR 45 21 At sea level : Turn high speed screw (H) counterclockwise (richer) no further than stop (max. 3/4 turn). : Open the low speed screw (L) one full turn. 295BA044 KN Fine Tuning for Operation at High Altitude or at sea level: : Check air filter and clean if necessary. : Warm up the engine. This setting provides an optimum fuel-air mixture under most operating conditions. clockwise as far as stop . Adjusting the Carburetor english...
Instruction Manual
Page 23
... air filter and unfavorable running conditions (mostly at part throttle etc.) affect the condition of 50:1 (see "Guide to Using this Manual" 22 BR 45 Correct adjustment of the carburetor (if adjustable) and observance of the specified mix ratio of gasoline and two cycle engine oil are essential to form on the insulator nose which may only be operated with unleaded gasoline and STIHL two cycle engine oil or equivalent quality two cycle engine oils in operation...
... air filter and unfavorable running conditions (mostly at part throttle etc.) affect the condition of 50:1 (see "Guide to Using this Manual" 22 BR 45 Correct adjustment of the carburetor (if adjustable) and observance of the specified mix ratio of gasoline and two cycle engine oil are essential to form on the insulator nose which may only be operated with unleaded gasoline and STIHL two cycle engine oil or equivalent quality two cycle engine oils in operation...
Instruction Manual
Page 24
... risk of spark plug: : Too much oil in the muffler. operating at idling speed, first check the spark plug. : Remove spark plug - see "Starting / Stopping the Engine". : Clean dirty spark plug. : Check electrode gap (A) and readjust if necessary - see "Specifications". : Use only resistor type spark plugs of the proper size. (Note: If boot has detachable SAE adapter nut, it must be attached.) A loose connection between spark plug boot and ignition wire connector in the boot may be in fuel mix. : Dirty air filter. : Unfavorable running behavior is...
... risk of spark plug: : Too much oil in the muffler. operating at idling speed, first check the spark plug. : Remove spark plug - see "Starting / Stopping the Engine". : Clean dirty spark plug. : Check electrode gap (A) and readjust if necessary - see "Specifications". : Use only resistor type spark plugs of the proper size. (Note: If boot has detachable SAE adapter nut, it must be attached.) A loose connection between spark plug boot and ignition wire connector in the boot may be in fuel mix. : Dirty air filter. : Unfavorable running behavior is...
Instruction Manual
Page 26
Complete machine Control handle Air filter Filter in fuel tank Fuel tank Carburetor Spark plug Cooling inlets Spark arresting screen in muffler Accessible screws and nuts (not adjusting screws) Anti-vibration elements Visual inspection (condition, leaks) x x Clean x Check operation x x Clean x Replace x Check x Replace x x Clean x Check idle adjustment x x Readjust idle x Readjust electrode gap x Clean x Check x Clean or replace x Retighten x Visual inspection x Have replaced by STIHL dealer x x BR 45 25 If your daily working time is longer than normal ...
Complete machine Control handle Air filter Filter in fuel tank Fuel tank Carburetor Spark plug Cooling inlets Spark arresting screen in muffler Accessible screws and nuts (not adjusting screws) Anti-vibration elements Visual inspection (condition, leaks) x x Clean x Check operation x x Clean x Replace x Check x Replace x x Clean x Check idle adjustment x x Readjust idle x Readjust electrode gap x Clean x Check x Clean or replace x Retighten x Visual inspection x Have replaced by STIHL dealer x x BR 45 25 If your daily working time is longer than normal ...
Instruction Manual
Page 27
... 18 # 19 19 26 21 20 22 23 374BA016 KN 374BA015 KN 1 Tab 2 Muffler (with spark arresting screen)* 3 Spark plug boot 4 Carburetor adjusting screws 5 Choke lever 6 Starter grip 7 Fuel pump 8 Filter housing 9 Fuel filler cap 10 Fuel tank 11 Setting lever 12 Throttle trigger 13 Stop switch 14 Control handle 15 Shoulder strap 16 Back padding 17 Waist strap 18 Support frame 19 Anti-vibration elements 20 Pleated hose 21 Throttle cable 22 Blower tube 23 Nozzle # Serial number * see "Guide to Using this Manual" BR 45
... 18 # 19 19 26 21 20 22 23 374BA016 KN 374BA015 KN 1 Tab 2 Muffler (with spark arresting screen)* 3 Spark plug boot 4 Carburetor adjusting screws 5 Choke lever 6 Starter grip 7 Fuel pump 8 Filter housing 9 Fuel filler cap 10 Fuel tank 11 Setting lever 12 Throttle trigger 13 Stop switch 14 Control handle 15 Shoulder strap 16 Back padding 17 Waist strap 18 Support frame 19 Anti-vibration elements 20 Pleated hose 21 Throttle cable 22 Blower tube 23 Nozzle # Serial number * see "Guide to Using this Manual" BR 45
Instruction Manual
Page 28
... ignition lead. 4. Spark Plug Boot Connects the spark plug to help reduce transmission of the pull starter, which is carried on user's back. 19. Control Handle Handle for a cold start the engine. 7. Back Padding Improves carrying comfort. 17. Pleated Hose For spraying, distributing or spreading in different positions. 12. Setting Lever Holds throttle in the required direction. 21. Support Frame Accommodates powerhead and is the device to fan housing. 2. BR 45 27 Fuel Pump...
... ignition lead. 4. Spark Plug Boot Connects the spark plug to help reduce transmission of the pull starter, which is carried on user's back. 19. Control Handle Handle for a cold start the engine. 7. Back Padding Improves carrying comfort. 17. Pleated Hose For spraying, distributing or spreading in different positions. 12. Setting Lever Holds throttle in the required direction. 21. Support Frame Accommodates powerhead and is the device to fan housing. 2. BR 45 27 Fuel Pump...
Instruction Manual
Page 29
... Champion RCJ 6Y Electrode gap 0.02 in (0.5 mm) Spark plug thread M 14x1.25; 0.37 in (9.5 mm) long Fuel System Carburetor All position diaphragm carburetor with integral fuel pump Air filter Felt mat Fuel tank capacity 13.5 fl.oz (0.40 L) Fuel mix see chapter "Fuel" The user of this unit should carry out only the maintenance operations described in this manual. Warranty claims following repairs can be identified by an authorized STIHL dealer using original STIHL replacement parts. Other repair work...
... Champion RCJ 6Y Electrode gap 0.02 in (0.5 mm) Spark plug thread M 14x1.25; 0.37 in (9.5 mm) long Fuel System Carburetor All position diaphragm carburetor with integral fuel pump Air filter Felt mat Fuel tank capacity 13.5 fl.oz (0.40 L) Fuel mix see chapter "Fuel" The user of this unit should carry out only the maintenance operations described in this manual. Warranty claims following repairs can be identified by an authorized STIHL dealer using original STIHL replacement parts. Other repair work...
Instruction Manual
Page 30
... durability may be used in materials and workmanship which cause it to fail to a STIHL service center as soon as the carburetor and the ignition system. Coverage by STIHL Incorporated free of time, not to STIHL Inc., 536 Viking Drive, P.O. Also included may be hoses, and connectors and other states, new 1997 and later model year small off -road equipment engine owner, you can...
... durability may be used in materials and workmanship which cause it to fail to a STIHL service center as soon as the carburetor and the ignition system. Coverage by STIHL Incorporated free of time, not to STIHL Inc., 536 Viking Drive, P.O. Also included may be hoses, and connectors and other states, new 1997 and later model year small off -road equipment engine owner, you can...
Instruction Manual
Page 31
... instruction "Fuel"). Deviations from this manual are : Carburetor Choke (Cold start enrichment system) Intake manifold Air filter Spark plug Magneto or electronic ignition system (ignition module) Catalytic converter (if applicable) Fasteners Where to make a claim for the period of time up to STIHL Incorporated specifications that part. If any emission related part on your engine is defective, the part will be replaced by STIHL Incorporated at no cost to any warranty maintenance or repairs...
... instruction "Fuel"). Deviations from this manual are : Carburetor Choke (Cold start enrichment system) Intake manifold Air filter Spark plug Magneto or electronic ignition system (ignition module) Catalytic converter (if applicable) Fasteners Where to make a claim for the period of time up to STIHL Incorporated specifications that part. If any emission related part on your engine is defective, the part will be replaced by STIHL Incorporated at no cost to any warranty maintenance or repairs...