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STIHL BG 56, 66, 86, SH 56, 86
Instruction Manual Manual de instrucciones
Warning!
Read and follow all safety precautions in Instruction Manual – improper use can cause serious or fatal injury.
Advertencia!
Lea y siga todas las precauciones de seguridad dadas en el manual de instrucciones – el uso incorrecto puede causar lesiones graves o mortales.
Instruction Manual 1 - 31
Manual de instrucciones 33 - 67
Contents
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Guide to Using this Manual |
2 |
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Safety Precautions and Working |
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Techniques |
2 |
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Manual |
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Using the Unit |
10 |
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Working Technique |
11 |
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Instruction |
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Assembling the Vacuum Shredder |
13 |
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Assembling the Blower |
12 |
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Original |
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Fuel |
14 |
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Fueling |
15 |
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recycled. |
Starting / Stopping the Engine |
15 |
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Engine Management |
18 |
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Cleaning the Air Filter |
17 |
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be |
Adjusting the Carburetor |
18 |
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can |
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Checking the Spark Plug |
19 |
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paper |
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Engine Running Behavior |
20 |
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oils, |
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Rewind Starter |
20 |
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paperfree-chlorineon |
vegetablecontaininks |
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Storing the Machine |
21 |
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Inspections and Maintenance by |
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Dealer |
21 |
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Maintenance and Care |
22 |
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Printed |
Printing |
Main Parts |
23 |
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Specifications |
24 |
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Special Accessories |
26 |
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Maintenance and Repairs |
26 |
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STIHL Incorporated Federal |
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2008 |
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Emission Control Warranty |
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Statement |
26 |
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KG, |
8621-296-0458-A. M29.L8.CP. 0040000000925GB |
STIHL Incorporated California |
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STIHLANDREAS© AG & Co. |
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Exhaust and Evaporative |
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Emissions Control Warranty |
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Statement |
28 |
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Trademarks |
30 |
English
Allow only persons who fully understand this manual to operate your blower.
To receive maximum performance and satisfaction from your STIHL blower, it is important that you read and understand and follow the maintenance and safety precautions in chapter "Safety Precautions and Working Techniques" before using your blower. For further information you can go to www.stihlusa.com.
Contact your STIHL dealer or the STIHL distributor for your area if you do not understand any of the instructions in this manual.
Warning!
Because a blower is a high-speed tool, some special safety precautions must be observed as with any other power tool to reduce the risk of personal injury. Careless or improper use may cause serious or even fatal injury. STIHL's philosophy is to continually improve all of its products. As a result, engineering changes and improvements may be made from time-to-time. If the operating characteristics or the appearance of your blower differs from those described in this manual, please contact your STIHL dealer for information and assistance.
BG 56, BG 56 C, BG 66, BG 86, BG 86 C, SH 56, SH 56 C, SH 86, SH 86 C |
1 |
English
Guide to Using this Manual
Pictograms
All the pictograms attached to the machine are shown and explained in this manual.
Symbols in text
The operating and safety instructions are supported by illustrations.
The individual steps or procedures described in the manual may be marked in different ways:
NA bullet marks a step or procedure without direct reference to an illustration.
A description of a step or procedure that refers directly to an illustration may contain item numbers that appear in the illustration. Example:
N Loosen the screw (1) N Lever (2) ...
In addition to the operating instructions, this manual may contain paragraphs that require your special attention. Such paragraphs are marked with the symbols and signal words described below:
Danger!
indicates an imminent risk of severe or fatal injury.
Warning!
indicates a hazardous situation which, if not avoided, could result in severe or fatal injury.
Caution!
indicates a risk of property damage, including damage to the machine or its individual components.
Engineering improvements
STIHL’s philosophy is to continually improve all of its products. As a result, engineering changes and improvements are made from time to time. Therefore, some changes, modifications and improvements may not be covered in this manual. If the operating characteristics or the appearance of your machine differ from those described in this manual, please contact your STIHL dealer for assistance.
Safety Precautions and
Working Techniques
Because the use of any blower may be dangerous, special safety precautions must be observed to reduce the risk of personal injury.
It is important that you read, fully understand and observe the following safety precautions and warnings. Read the instruction manual and the safety precautions periodically. Careless or improper use may cause serious or fatal injury.
Have your STIHL dealer show you how to operate your power tool. Observe all applicable local safety regulations, standards and ordinances.
Warning!
Do not lend or rent your power tool without the instruction manual. Be sure that anyone using it understands the information contained in this manual.
2 |
BG 56, BG 56 C, BG 66, BG 86, BG 86 C, SH 56, SH 56 C, SH 86, SH 86 C |
Warning!
Use your blower for clearing leaves, twigs, grass, clippings, paper, debris, dust and light snow in yards, gardens, sport stadiums, parks, paths, streets, driveways and parking lots and for similar tasks.
Do not use it for other purposes, since misuse may result in personal injury or property damage, including damage to the machine.
Warning!
Minors should never be allowed to use this power tool. Bystanders, especially children, and animals should not be allowed in the area where it is in use.
Warning!
To reduce the risk of injury to bystanders and damage to property, never let your power tool run unattended. When it is not in use (e.g. during a work break), shut it off and make sure that unauthorized persons do not use it.
Most of these safety precautions and warnings apply to the use of all STIHL blowers. Different models may have different parts and controls. See the appropriate section of your instruction manual for a description of the controls and the function of the parts of your model.
Safe use of a blower involves
1.the operator
2.the power tool
3.the use of the power tool
THE OPERATOR
Physical Condition
You must be in good physical condition and mental health and not under the influence of any substance (drugs, alcohol, etc.) which might impair vision, dexterity or judgment. Do not operate this machine when you are fatigued.
Warning!
Be alert – if you get tired, take a break. Tiredness may result in loss of control. Working with any power tool can be strenuous. If you have any condition that might be aggravated by strenuous work, check with your doctor before operating this machine.
Warning!
Prolonged use of a power tool (or other machines) exposing the operator to vibrations may produce whitefinger disease (Rayn aud's phenomenon) or carpal tunnel syndrome.
These conditions reduce the hand's ability to feel and regulate temperature, produce numbness and burning sensations and may cause nerve and circulation damage and tissue necrosis.
All factors which contribute to whitefinger disease are not known, but cold weather, smoking and diseases or physical conditions that affect blood vessels and blood transport, as well as high vibration levels and long periods of exposure to vibration are mentioned as factors in the development of whitefinger
English
disease. In order to reduce the risk of whitefinger disease and carpal tunnel syndrome, please note the following:
Most STIHL power tools are available with an anti-vibration ("AV") system designed to reduce the transmission of vibrations created by the machine to the operator's hands. An AV system is recommended for those persons using power tools on a regular or sustained basis.
Keep your hands warm.
Keep the antivibrationsystem well maintained. A power tool with loose components or with damaged or worn antivibration element will tend to have higher vibration levels.
Maintain a firm grip at all times, but do not squeeze the handles with constant, excessive pressure. Take frequent breaks.
All the above-mentioned precautions do not guarantee that you will not sustain whitefinger disease or carpal tunnel syndrome. Therefore, continual and regular users should closely monitor the condition of their hands and fingers. If any of the above symptoms appear, seek medical advice immediately.
Warning!
The ignition system of the STIHL unit produces an electromagnetic field of a very low intensity. This field may interfere with some pacemakers. To reduce the risk of serious or fatal injury, persons with a pacemaker should consult their physician and the pacemaker manufacturer before operating this tool.
BG 56, BG 56 C, BG 66, BG 86, BG 86 C, SH 56, SH 56 C, SH 86, SH 86 C |
3 |
English
Proper Clothing
Warning!
To reduce the risk of injury, the operator should wear proper protective apparel.
To reduce the risk of injury to your eyes never
operate your power tool unless wearing goggles or properly fitted protective glasses with adequate top and side protection complying with ANSI Z 87.1 (or your applicable national standard).
Warning!
Power tool noise may damage your hearing.
Wear sound barriers (ear plugs or ear mufflers) to
protect your hearing. Continual and regular
users should have their hearing checked regularly.
Be particularly alert and cautious when wearing hearing protection because your ability to hear warnings (shouts, alarms, etc.) is restricted.
Clothing must be sturdy and snug-fitting, but allow complete freedom of movement.
Avoid loose-fitting jackets, scarfs, neckties, jewelry, flared or cuffed pants, unconfined long hair or anything that could become drawn into the air intake. Secure hair so it is above shoulder level.
Good footing is very important. Do not wear sandals or go barefoot.
THE POWER TOOL
For illustrations and definitions of the power tool parts see the chapter on "Main Parts and Controls."
Warning!
Never modify this power tool in any way. Only attachments supplied by STIHL or expressly approved by STIHL for use with the specific STIHL model are authorized. Although certain unauthorized attachments are useable with STIHL power tools, their use may, in fact, be extremely dangerous.
If this tool is subjected to unusually high loads for which it was not designed (e.g. heavy impact or a fall), always check that it is in good condition before continuing work. Check in particular that the fuel system is tight (no leaks) and that the controls and safety devices are working properly. Do not continue operating this machine if it is damaged. In case of doubt, have it checked by your STIHL servicing dealer.
Warning!
To reduce the risk of injury, do not operate the machine unless it is fully assembled with a properly mounted blower tube.
Small particles (e.g. dust) blown through the blower tubes and nozzle can cause a static charging of the blower tubes.
This is especially true in low humidity and high dust conditions. In order to reduce the risk of shock from static charging and subsequent injury from loss of control, your blower has features designed to help reduce the build up of static electricity in the blower tubes and equalize the charge with the engine and/or operator:
The control handle is designed to conduct static electricity through the throttle cable to the engine and from the handle through the operator to the ground.
4 |
BG 56, BG 56 C, BG 66, BG 86, BG 86 C, SH 56, SH 56 C, SH 86, SH 86 C |
THE USE OF THE POWER TOOL
Transporting the Power Tool
Warning!
When transporting your power tool in a vehicle, properly secure it to prevent turnover, fuel spillage and damage to the unit.
Fuel
Your STIHL power tool uses an oilgasoline mixture for fuel (see the chapter on "Fuel" of your instruction manual).
Gasoline is an extremely flammable fuel. If spilled and ignited by a spark or other ignition source, it can cause fire and serious burn injury or property damage. Use extreme caution when handling gasoline or fuel mix. Do not smoke or bring any fire or flame near the fuel or the power tool. Note that combustible fuel vapor may escape from the fuel system.
Fueling Instructions
Warning!
Fuel your power tool in well-ventilated areas, outdoors. Always shut off the engine and allow it to cool before refueling. Gasoline vapor pressure may build up inside the fuel tank depending on the fuel used, the weather conditions and the tank venting system.
In order to reduce the risk of burns and other personal injury from escaping gas vapor and fumes, remove the fuel filler cap on your power tool carefully so as to allow any pressure build-up in the tank to release slowly. Never remove the fuel filler cap while the engine is running.
Select bare ground for fueling and move at least 10 feet (3 m) from the fueling spot before starting the engine. Wipe off any spilled fuel before starting your machine.
Warning!
Check for fuel leakage while refueling and during operation. If fuel leakage is found, do not start or run the engine until the leak is fixed and any spilled fuel has been wiped away. Take care not to get fuel on your clothing. If this happens, change your clothing immediately.
Unit vibrations can cause an improperly tightened fuel filler cap to loosen or come off and spill quantities of fuel. In order to reduce the risk of fuel spillage and fire, tighten the fuel filler cap by hand as securely as possible.
English
Before Starting
Warning!
Always check your power tool for proper condition and operation before starting, particularly the throttle trigger, throttle trigger interlock and stop switch. The throttle trigger must move freely. Never attempt to modify the controls or safety devices.
Warning!
Never use a power tool that is damaged or not properly maintained.
Warning!
Check that the spark plug boot is securely mounted on the spark plug – a loose boot may cause arcing that could ignite combustible fumes and cause a fire.
Warning!
Keep the handles clean and dry at all times; it is particularly important to keep them free of moisture, pitch, oil, grease or resin in order for you to maintain a firm grip and properly control your power tool.
Starting
Warning!
Start the engine at least 10 feet
(3 meters) from the fueling spot, outdoors only.
BG 56, BG 56 C, BG 66, BG 86, BG 86 C, SH 56, SH 56 C, SH 86, SH 86 C |
5 |
English
Warning!
Your power tool is a one-person machine. Do not allow other persons in the general work area, even when starting.
For specific starting instructions, see the appropriate section of your manual. Place the power tool on firm ground or other solid surface in an open area. Maintain good balance and secure footing.
Warning!
To reduce the risk of injury from loss of control, do not attempt to "drop start" your power tool.
Warning!
When you pull the starter grip, do not wrap the starter rope around your hand. Do not let the grip snap back, but guide the starter rope to rewind it properly. Failure to follow this procedure may result in injury to your hand or fingers and may damage the starter mechanism.
Warning!
Once the engine has started, immediately blip the throttle trigger, which should release the starting throttle and allow the engine to slow down to idle.
Warning!
This unit is equipped with an ignition system that is normally in operational readiness. After the setting lever is used to stop the engine, it automatically springs back to the "on" position. If the engine is warm, it may be possible to start it by simply pulling the starter rope, with no further adjustments. To reduce the risk of injury, be particularly alert to keep children away from the unit.
During Operation
Holding and controlling the power tool
The blower is designed for singlehanded operation with either the right or left hand on the control handle.
Special care must be taken in slippery conditions (wet ground, snow) and in difficult, overgrown terrain. Watch for hidden obstacles such as tree stumps, roots and ditches to avoid stumbling. For better footing, clear away fallen branches, scrub and cuttings. Be extremely cautious when working on slopes or uneven ground.
Warning!
To reduce the risk of injury from loss of control, never work on a ladder, in a tree or any other insecure support. Never hold the machine above shoulder height.
Working conditions
Operate and start your power tool only outdoors in a well ventilated area. Operate it under good visibility and daylight conditions only. Work carefully.
Warning!
As soon as the engine is running, this product gen-
erates toxic exhaust fumes containing chemicals, such as unburned hydrocarbons (including
benzene) and carbon monoxide, that are known to cause respiratory problems, cancer, birth defects, or other reproductive harm. Some of the gases (e.g. carbon monoxide) may be colorless and odorless. To reduce the risk of serious or fatal injury/illness from inhaling toxic fumes, never run the machine indoors or in poorly ventilated locations:
6 |
BG 56, BG 56 C, BG 66, BG 86, BG 86 C, SH 56, SH 56 C, SH 86, SH 86 C |
Warning!
Inhalation of certain dusts, especially organic dusts such as mold or pollen, can cause susceptible persons to have an allergic or asthmatic reaction. Substantial or repeated inhalation of dust and other airborne contaminants, in particular those with a smaller particle size, may cause respiratory or other illnesses. Control dust at the source where possible. Use good work practices, such as operating the unit so that the wind or operating process directs any dust raised by the power tool away from the operator. Follow the recommendations of EPA/OSHA/NIOSH and occupational and trade associations with respect to dust ("particulate matter"). When the inhalation of dust cannot be substantially controlled, i.e., kept at or near the ambient (background) level, the operator and any bystanders should wear a respirator approved by NIOSH/MSHA for the type of dust encountered.
Warning!
If the substance being blown is a commercial substance, review, understand and follow all warnings and instructions contained in the material safety data sheet for that substance and/or consult the material manufacturer/supplier. The state of California and some other authorities, for instance, have published lists of substances known to cause cancer, reproductive toxicity, etc.
Warning!
Breathing asbestos dust is dangerous and can cause severe or fatal injury, respiratory illness or cancer. The use and disposal of asbestos-containing products have been strictly regulated by OSHA and the Environmental Protection Agency. If you have any reason to believe that you might be blowing or otherwise disturbing asbestos, immediately contact your employer or a local OSHA representative.
Warning!
Dust with silica in its composition may contain crystalline silica. Silica is a basic component of sand, quartz, brick, clay, granite and numerous other minerals and rocks, including masonry and concrete products. Repeated and / or substantial inhalation of airborne crystalline silica can cause serious or fatal respiratory disease, including silicosis. In addition, the state of California and some other authorities have listed respirable crystalline silica as a substance known to cause cancer. When encountering such materials, always follow the respiratory precautions mentioned above
Operating instructions
Warning!
In the event of an emergency, switch off the engine immediately – move the slide control / stop switch to 0 or STOP
English
In order to reduce the risk of personal or even fatal injury to bystanders from
blown objects keep bystanders at least 16 feet (5m) away when the power tool is running.
Stop the engine immediately if you are approached.
Warning!
To reduce the risk of personal injury, do not direct air blast towards bystanders, since the high pressure of the air flow can injure eyes and can blow small objects at great speed. Do not direct airblast towards pets.
Warning!
The blower fan between the air intake and output openings rotates whenever the engine is running.
Never insert any foreign object into the air intake of the machine or into the nozzle of the blower. It will damage the fan wheel and may cause serious injury to the operator or bystanders as a result of the object or broken parts being thrown out at high speed.
Do not place the blower on the ground when operating at high speed, because small objects such as sand, grass, dust, etc. may be pulled into the air intake and damage the fan wheel. It is best to turn the machine off when putting it on the ground.
BG 56, BG 56 C, BG 66, BG 86, BG 86 C, SH 56, SH 56 C, SH 86, SH 86 C |
7 |
English
Warning!
The muffler other parts of the engine (e.g. fins of the cylinder, spark plug) become hot during operation and remain hot for a while after stopping the engine. To reduce risk of burns do not touch the muffler and other parts while they are hot.
Using the Vacuum Attachment
(only BG 56, BG 86, SH 56, SH 86)
For specific assembling instructions, see the appropriate section of your instruction manual.
Your shredder vacuum is designed for two-handed operation. Hold and operate the unit with your right hand on the control handle and your left hand on the assist handle.
To reduce the risk of injury, do not operate the machine unless it is fully assembled with a properly mounted suction tube and catcher bag.
295BA053 KN |
Wear the catcher bag shoulder strap over your left shoulder – not across your chest – so that you can quickly throw off the unit and catcher bag in an emergency.
Warning!
To reduce the risk of personal injury from fire and explosion, never attempt
to pick up hot or burning substances (e.g. smoldering ashes, glowing cigarettes)
or combustible fluids (e.g. gasoline, paint thinners).
Warning!
In order to reduce
the risk of injury from contact with
rotating parts and damage to the
engine, the intake screen must always be closed and the locking tab engaged when the suction tube is not mounted. Stop engine and wait until the fan is stopped before opening the intake screen.
Warning!
To reduce the risk of fire and burn injury, keep the area around the muffler clean. Remove excess lubricant and all debris such as pine needles, branches or leaves. Let the engine cool down sitting on concrete, metal, bare ground or solid wood (e.g. the stump of a felled tree) away from any combustible substances.
Warning!
Never modify your muffler. The muffler could be damaged and cause an increase in heat radiation or sparks, thereby increasing the risk of fire and burn injury. You may also permanently damage the engine. Have your muffler serviced and repaired by your STIHL servicing dealer only.
8 |
BG 56, BG 56 C, BG 66, BG 86, BG 86 C, SH 56, SH 56 C, SH 86, SH 86 C |
Catalytic converter
Warning!
Some STIHL power tools are equipped with a catalytic converter, which is designed to reduce the exhaust emissions of the engine by a chemical
process in the muffler. Due to this process, the muffler does not cool down as rapidly as conventional mufflers when the engine returns to idle or is shut off. To reduce the risk of fire and burn injuries, the following specific safety precautions must be observed.
Warning!
Since a muffler with a catalytic converter cools down less rapidly than conventional mufflers, always set your power tool down in the upright position and never locate it where the muffler is near dry brush, grass, wood chips or other combustible materials while it is still hot.
Warning!
An improperly mounted or damaged cylinder housing or a damaged/deformed muffler shell may interfere with the cooling process of the catalytic converter. To reduce the risk of fire or burn injury, do not continue work with a damaged or improperly mounted cylinder housing or a damaged/deformed muffler shell.
Your catalytic converter is furnished with screens designed to reduce the risk of fire from the emission of hot particles. Due to the heat from the catalytic reaction, these screens will normally
stay clean and need no service or maintenance. If you experience loss of performance and you suspect a clogged screen, have your muffler maintained by a STIHL servicing dealer.
MAINTENANCE, REPAIR AND STORING
Warning!
Use only identical STIHL replacement parts for maintenance and repair. Use of non-STIHL parts may cause serious or fatal injury.
Strictly follow the maintenance and repair instructions in the appropriate section of your instruction manual.
Please refer to the maintenance chart in this manual.
Warning!
Always stop the engine and make sure that the fan is stopped before doing any maintenance or repair work or cleaning the power tool. Do not attempt any maintenance or repair work not described in your instruction manual. Have such work performed by your STIHL servicing dealer only.
English
Warning!
Use the specified spark plug and make sure it and the ignition lead are always clean and in good condition. Always press spark plug boot snugly onto spark plug terminal of the proper size. (Note: If terminal has detachable SAE adapter nut, it must be securely attached.) A loose connection between spark plug terminal and the ignition wire connector in the boot may create arcing that could ignite combustible fumes and cause a fire.
Warning!
Never test the ignition system with the boot removed from the spark plug or with a removed spark plug, since uncontained sparking may cause a fire.
Warning!
Do not operate your power tool if the muffler is damaged, missing or modified. An improperly maintained muffler will increase the risk of fire and hearing loss. If your muffler was equipped with a spark-arresting screen to reduce the risk of fire, never operate your power tool if the screen is missing or damaged. Remember that the risk of forest fires is greater in hot or dry weather.
Tighten all nuts, bolts and screws except the carburetor adjustment screws after each use.
For maintenance items please also refer to the maintenance chart in this manual.
Store the power tool in a dry and high or locked location out of reach of children.
BG 56, BG 56 C, BG 66, BG 86, BG 86 C, SH 56, SH 56 C, SH 86, SH 86 C |
9 |
English
Before storing for longer than a few days, always empty the fuel tank. See chapter "Storing the machine" in this manual.
Store fuel in an approved and properly labeled safety-type canister only. Take care when handling gasoline! For health and safety reasons, avoid direct contact with the skin and avoid inhaling fuel vapor!
Using the Unit
Using the Blower
295BA052 KN |
Your blower is designed for one-handed operation. It must be carried by the control handle in the right hand.
Operate the unit only with a
properly mounted blower tube.
The round nozzle is particularly suitable for use on uneven surfaces (e.g. fields and lawns).
The fan nozzle (either included with unit or available as special accessory) produces a broad and powerful airstream at ground level. It can be aimed and controlled very accurately. This nozzle is highly effective for blowsweeping sawdust, leaves, grass cuttings, etc. on paved surfaces.
Watch out for small creatures when blow-sweeping in open areas, yards and gardens.
In noise-sensitive areas, operate your unit at the lowest possible engine speed.
If necessary, dampen the surface to be cleaned in order to avoid creating too much dust.
Using the Vacuum Shredder
295BA053 KN |
Your vacuum shredder is designed for two-handed operation. Hold and operate the unit with your right hand on the control handle and your left hand on the assist handle.
Wear the catcher bag shoulder strap over your left shoulder, not across your chest. This enables you to quickly remove the power tool and catcher bag in an emergency.
Operate the unit only with a properly mounted suction tube and catcher bag.
10 |
BG 56, BG 56 C, BG 66, BG 86, BG 86 C, SH 56, SH 56 C, SH 86, SH 86 C |
Vacuuming abrasive material 
(such as grit, stone chips, etc.) causes the blower wheel and
blower housing to wear at a rapid rate. This results in a considerable loss of suction power. In such a case you should contact your dealer. STIHL recommends a STIHL servicing dealer.
Take particular care when vacuuming wet leaves since they may block the blower wheel and elbow.
Watch out for small animals when vacuuming and blow-sweeping in open areas, yards and gardens.
Working Technique
To minimize blowing time, use a rake and broom to loosen dirt particles before you start blowing.
Recommended working technique to minimize air pollution:
NIf conditions are very dusty, dampen the surfaces before starting work.
NPull out the nozzle to full length so that the airstream is at ground level.
NDo not blow particles in the direction of bystanders, in particular in the direction of children, pets, open windows or freshly washed vehicles. Blow the dirt particles carefully to a central point.
NPut the dirt in garbage cans. Do not blow it onto neighboring land.
Recommended working technique to minimize noise:
NOperate your power tool at reasonable times only – not early in the morning, late at night or during midday rest periods when people could be disturbed. Keep to the times prescribed locally. Normal recommendation for professional use on weekdays: 9:00hrs to 12:00hrs and 15:00hrs to 17:00hrs. Be considerate towards neighbors at weekends.
NFewer engines mean less noise. Where possible, do not run more than one power tool at any time.
English
NOperate blowers at the lowest engine speed necessary to accomplish the task.
NInspect your power tool before starting work, especially the muffler, air inlets and air filter.
Save water by using a blower instead of a water hose for lawn and garden work wherever possible, e.g. for cleaning yards and patios.
BG 56, BG 56 C, BG 66, BG 86, BG 86 C, SH 56, SH 56 C, SH 86, SH 86 C |
11 |
English
Assembling the Blower
Mounting the Blower Tube
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5 |
1 |
3 |
KN |
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295BA054 |
N Line up the arrows (1).
NPush the blower tube (2) into the fan housing stub (3).
NPush the union nut (4) over the fan housing stub (3) and turn it in the direction of the arrow until the
tab (5) engages the opening (6).
BG 56, BG 86, SH 56, SH 86
2 |
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8 |
a |
7 |
KN |
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b |
295BA055 |
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NPush the nozzle (7) onto the blower tube (2) as far as lug (8),
position (a) (long) or position (b) (short), and rotate it in the direction of the arrow to lock in position.
BG 66 |
Removing the Blower Tube |
5 |
|
1 |
KN |
3 |
296BA005 |
N Line up the arrows (1).
NPush the blower tube (2) into the fan housing stub (3).
NPush the union nut (4) over the fan housing stub (3) and turn it in the direction of the arrow until the
tab (5) engages the opening (6).
295BA057 KN |
N Shut off the engine.
NInsert a suitable tool through the opening in the union nut to press down the tab.
NRotate the union nut in the direction of the arrow as far as the stop.
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N Remove the blower tube. |
2 |
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8 |
a |
7 |
KN |
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296BA004 |
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NPush the nozzle (7) in position (a) onto the blower tube (2) as far as lug (8) and rotate it in the direction of the arrow to lock in position.
12 |
BG 56, BG 56 C, BG 66, BG 86, BG 86 C, SH 56, SH 56 C, SH 86, SH 86 C |
Assembling the Vacuum
Shredder
Mounting the Elbow
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3 |
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1 |
4 |
2 |
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295BA058 KN |
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NPush the elbow (1) into the catcher bag (2) as far as the mark (smaller arrow).
NTighten strap (3) on catcher bag and press down the tab (4).
Make sure the zipper on the catcher bag is closed.
|
8 |
5 |
6 |
KN |
|
|
295BA059 |
N Line up the arrows (5).
NPush the elbow into the fan housing stub (6) as far as stop.
NPush the union nut (7) over the fan housing stub and turn it in the direction of the arrow until the
tab (8) engages the opening (9) in the union nut.
Assembling the Suction Tube
295BA080 KN |
NLine up the arrows on the suction tube and extension tube. Push together and lock in position.
Mounting the Suction Tube
1 |
2 |
295BA060 KN |
N Shut off the engine.
NInsert screwdriver in the tap (1), swing it to the right to disengage the intake screen (2) and then open the intake screen.
English
3
6
4
295BA061 KN
N Line up the arrows (3).
NPush the suction tube into the fan housing stub (4) as far as stop.
NPush the union nut (5) over the fan housing stub and turn it in the direction of the arrow until the
tab (6) engages the opening (7) in the union nut.
NContinue turning the union nut in direction of arriw and tighten it down firmly.
Removing the Elbow
295BA062 KN
N Shut off the engine.
NInsert a suitable tool through the opening in the union nut to press down the tab.
NRotate the union nut in the direction of the arrow as far as the stop.
N Removing the Elbow
BG 56, BG 56 C, BG 66, BG 86, BG 86 C, SH 56, SH 56 C, SH 86, SH 86 C |
13 |
English
Removing the Suction Tube.
295BA063 KN |
N Shut off the engine.
NRotate the union nut in the direction of the arrow as far as the stop.
NInsert a suitable tool through the opening in the union nut to press down the tab.
NContinue turning the union nut in the direction of the arrow as far as the next stop.
N Remove the suction tube.
NClose the intake screen and lock it in position.
Fuel
This engine is certified to operate on unleaded gasoline and the STIHL twostroke engine oil at a mix ratio of 50:1.
Your engine requires a mixture of highquality gasoline and quality two-stroke air cooled engine oil.
Use mid-grade unleaded gasoline with a minimum octane rating of 89 (R+M/2). If the octane rating of the mid-grade gasoline in your area is lower, use premium unleaded fuel.
Fuel with a lower octane rating may increase engine temperatures. This, in turn, increases the risk of piston seizure and damage to the engine.
The chemical composition of the fuel is also important. Some fuel additives not only detrimentally affect elastomers (carburetor diaphragms, oil seals, fuel lines, etc.), but magnesium castings and catalytic converters as well. This could cause running problems or even damage the engine. For this reason STIHL recommends that you use only nationally recognized high-quality unleaded gasoline!
Use only STIHL two-stroke engine oil or equivalent high-quality two-stroke engine oils that are designed for use only in air cooled two-cycle engines.
We recommend STIHL 50:1 two-stroke engine oil since it is specially formulated for use in STlHL engines.
Do not use BIA or TCW rated (twostroke water cooled) mix oils or other mix oils that state they are for use in both
water cooled and air cooled engines (e.g., outboard motors, snowmobiles, chain saws, mopeds, etc.).
Take care when handling gasoline. Avoid direct contact with the skin and avoid inhaling fuel vapor. When filling at the pump, first remove the canister from your vehicle and place the canister on the ground before filling. Do not fill fuel canisters that are sitting in or on a vehicle.
The canister should be kept tightly closed in order to avoid any moisture getting into the mixture.
The machine‘s fuel tank and the canister in which fuel mix is stored should be cleaned as necessary.
Fuel mix ages
Only mix sufficient fuel for a few days work, not to exceed 3 months of storage. Store in approved fuel-canisters only. When mixing, pour oil into the canister first, and then add gasoline. Close the canister and shake it vigorously by hand to ensure proper mixing of the oil with the fuel.
Gaso- |
Oil (STIHL 50:1 or equiva- |
line |
lent high-quality oils) |
US gal. |
US fl.oz |
1 |
2.6 |
2 1/2 |
6.4 |
5 |
12.8 |
Dispose of empty mixing-oil canisters only at authorized disposal locations.
14 |
BG 56, BG 56 C, BG 66, BG 86, BG 86 C, SH 56, SH 56 C, SH 86, SH 86 C |
Fueling
Warning!
After fueling, tighten fuel cap as securely as possible by hand.
Change the fuel pick up body every year
English
Starting / Stopping the
Engine
Starting the engine
N Observe safety precautions.
295BA064 KN
Before fueling, clean the filler cap and the area around it to ensure that no dirt falls into the tank.
Always thoroughly shake the mixture in the canister before fueling your machine.
Warning!
In order to reduce the risk of burns or other personal injury from escaping gas vapor and fumes, remove the fuel filler cap carefully so as to allow any pressure build-up in the tank to release slowly.
295BA065 KN |
Before storing your machine for a long period, drain and clean the fuel tank and run engine until carburetor is dry.
1
295BA066 KN
NPress the fuel pump bulb (1) at least five times – even if the bulb is filled with fuel.
Adjusting the setting lever
Only on BG 86, SH 86
295BA069 KN
NTo start, move the setting lever to the run position F
The setting lever selects and holds any throttle position between idle and full throttle.
BG 56, BG 56 C, BG 66, BG 86, BG 86 C, SH 56, SH 56 C, SH 86, SH 86 C |
15 |
English
Adjusting the choke knob
If the engine is cold
295BA067 KN
N Choke-Drehknopf auf g
If the engine is warm
295BA068 KN
N Choke-Drehknopf auf <
Also use this setting if the engine has been running but is still cold.
Starting |
296BA006 KN |
N Place the unit on the ground:
NMake sure you have a firm footing: Hold the unit firmly with your right hand on the housing and press down.
NHold the starter grip with your left hand.
Models with ErgoStart
N Pull the starter grip steadily.
Models without ErgoStart
NPull the starter grip slowly until you feel it engage and then give it a brisk strong pull.
Do not pull out the starter rope all the way – it might otherwise
break.
NDo not let the starter grip snap back. Guide it slowly back into the housing so that the starter rope can rewind properly.
Other hints on starting
If the engine stops while the choke knob in on gor during acceleration
NMove the choke knob to <and continue cranking until the engine runs.
If the engine does not start
NMake sure all settings are correct (choke knob, setting lever in run position F).
N Repeat the starting procedure.
If fuel tank has been run completely dry and then refueled
1
295BA066 KN
NPress the fuel pump bulb (1) at least five times – even if the bulb is filled with fuel.
N Now start the engine.
16 |
BG 56, BG 56 C, BG 66, BG 86, BG 86 C, SH 56, SH 56 C, SH 86, SH 86 C |
English
As soon as the engine runs |
BG 86, SH 86 |
Cleaning the Air Filter
3 |
KN |
|
295BA073 |
||
295BA071KN |
||
N |
Move the setting lever to 0 – the |
|
N Blip the throttle trigger (3) – the |
engine stops – the setting lever |
|
choke knob moves to the run |
springs back to the on position. |
|
position F– the engine returns to |
|
|
idle speed. |
|
|
Stopping the Engine. |
|
|
BG 56, BG 66, SH 56 |
|
295BA072 KN
NMove the stop switch to 0 – the engine stops – the stop switch springs back to the on position.
If there is a noticeable loss of engine power
1
2
295BA074 KN
NTurn the filter cover lock (1) counterclockwise to the vertical position.
N Remove the filter cover (2).
NClean away loose dirt from around the filter.
5 |
3 |
|
|
|
2 |
295BA075 KN
NPull off the retainer (3) and take the filter (4) out of the filter housing (5).
NInstall a new filter. As a temporary measure you can knock it out on the palm of your hand or blow it out with compressed air – do not wash.
Replace damaged parts.
BG 56, BG 56 C, BG 66, BG 86, BG 86 C, SH 56, SH 56 C, SH 86, SH 86 C |
17 |
English
Installing the filter
NFit the filter in the filter housing and push the retainer into position.
NRefit the filter cover and turn the filter cover lock to the horizontal position,
Engine Management |
Adjusting the Carburetor |
|
|
Exhaust emissions are controlled by the design of the fundamental engine parameters and components (e.g. carburation, ignition, timing and valve or port timing) without the addition of any major hardware.
The carburetor comes from the factory with a standard setting.
This setting provides an optimum fuel-air mixture under most operating conditions.
With this carburetor it is only possible to adjust the high speed screw within fine limits.
Standard Setting
295BA076 KN
N Shut off the engine.
NTurn high speed screw (H) counterclockwise (no more than a 3/4 turn) as far as stop.
NTurn the low speed screw (L) carefully home as far as stop and then open it 1 full turn.
Fine Tuning for Operation in Mountains or at Sea Level
A slight correction of the setting may be necessary if engine power is not satisfactory when operating at high altitude or at sea level.
18 |
BG 56, BG 56 C, BG 66, BG 86, BG 86 C, SH 56, SH 56 C, SH 86, SH 86 C |
NCheck the air filter and clean it if necessary.
N Warm up the engine.
At high altitude
NTurn high speed screw (H) clockwise (leaner) – no further than stop.
At sea level
NTurn high speed screw (H) slightly counterclockwise (richer) – no further than stop.
Adjusting Idle Speed
It is usually necessary to change the setting of the idle speed screw (LA) after every correction to the low speed screw (L).
NTurn the low speed screw (L) slowly clockwise until the engine runs and accelerates smoothly.
If acceleration is good, the idle setting is too lean:
NTurn the low speed screw (L) slowly counterclockwise until the engine runs and accelerates smoothly.
295BA077 KN
Engine stops while idling
N Check the standard setting.
NTurn the idle speed screw (LA) clockwise until the engine runs smoothly.
Erratic idling behavior
If acceleration is poor even though the standard setting is correct, the idle setting is too rich:
BG 56, BG 56 C, BG 66, BG 86, BG 86 C, SH 56, SH 56 C, SH 86, SH 86 C
English
Checking the Spark Plug
000BA002 KN
Wrong fuel mix (too much engine oil in the gasoline), a dirty air filter and unfavorable running conditions (mostly at part throttle etc.) affect the condition of the spark plug. These factors cause deposits to form on the insulator nose which may result in trouble in operation.
If engine is down on power, difficult to start or runs poorly at idling speed, first check the spark plug.
NRemove spark plug as described in chapter "Starting / Stopping the Engine".
N Clean dirty spark plug.
NCheck the electrode gap (A) and readjust if necessary – see "Specifications".
NUse only resistor type spark plugs of the approved range.
19
English
Rectify problems which have caused fouling of spark plug:
–Too much oil in fuel mix.
–Dirty air filter.
–Unfavorable running conditions, e.g. operating at part load.
Fit a new spark plug after approx. 100 operating hours or earlier if the electrodes are badly eroded.
2
1
002BA071 KN
To reduce the risk of fire and burn injury, use only spark plugs authorized by STIHL. Always press spark plug boot (2) snugly onto terminal (1) of the proper size. (Note: If terminal has detachable SAE adapter nut, it must be attached.) A loose connection between spark plug boot and ignition wire connector in the boot may create arcing that could ignite combustible fumes and cause a fire.
Engine Running Behavior |
Rewind Starter |
|
|
If engine running behavior is unsatisfactory even though the air filter is clean and the carburetor is properly adjusted, the cause may be the muffler.
NHave the muffler checked for contamination (carbonization).
STIHL recommends that you have servicing and repair work carried out exclusively by an authorized STIHL servicing dealer.
To help prolong the wear life of the starter rope, observe the following points:
NPull the starter rope only in the direction specified.
NDo not pull the rope over the edge of the guide bushing.
NDo not pull out the rope more than specified.
NDo not allow the starter grip to snap back, guide it back into the housing slowly – see chapter on "Starting / Stopping the Engine."
Have a damaged starter rope replaced by your dealer before it breaks completely. STIHL recommends that you have servicing and repair work carried out exclusively by an authorized STIHL servicing dealer.
20 |
BG 56, BG 56 C, BG 66, BG 86, BG 86 C, SH 56, SH 56 C, SH 86, SH 86 C |
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