Stihl BR 700, BR 700 X Manual

Introduction

The information contained in this manual will help you receive maximum performance and satisfaction from your STIHL blower and, if followed, reduce the risk of injury from its use.

SAVE THIS MANUAL!

Because a blower is a high-speed tool, special safety precautions must be observed to reduce the risk of personal injury.

Read this instruction manual thoroughly before use and periodically thereafter. Follow all safety precautions. Careless or improper use of the blower can cause serious or fatal injury.

Have your authorized STIHL servicing dealer show you how to operate your blower.

Do not lend or rent your blower without this instruction manual. Allow only persons who have the proper training and fully understand the information in this manual to operate the blower.

For further information, or if you do not understand any of the instructions in this manual, please go to www.stihl.ca or contact your authorized STIHL servicing dealer.

Guide to Using this Manual

Signal Words

This manual contains safety information that requires your special attention. Such information is introduced with the following symbols and signal words:

Indicates a hazardous situation that, if not avoided, will result in death or serious injury.

Indicates a hazardous situation that, if not avoided, could result in death or serious injury.

NOTICE
Indicates a risk of property damage, including damage to the machine or its individual components.

Main Parts

Blower

1. Master Control Lever
   Lever for choke control, starting throttle, run and stop switch position.
2. Spark Plug
   Ignites the fuel-air mix in the engine.
3. Spark Plug Boot
   Connects the spark plug with the ignition lead.
4. Choke Knob
   Eases engine starting by enriching mixture.
5. Starter Grip
   The grip of the pull starter for starting the engine.
6. Manual Fuel Pump
   Provides additional fuel feed for a cold start.
7. Air Filter
   Filters the air drawn into the engine.
8. Fuel Filler Cap
   Closes and seals the fuel tank.
9. Air Filter Cover
   Covers and protects the air filter element.
10. Carburetor Adjusting Screws
    For tuning the carburetor.
11. Quick-release
    Locks the control handle.
12. Intake Screen
    Covers the air intake opening.
13. Carrying Handle
    For transporting the blower.
14. Shoulder Straps
    For carrying the blower while working.
15. Control Handle
    The blower's handle.
16. Throttle Trigger
    Controls the speed of the engine.
17. Nozzle
    Directs and concentrates the airstream.
18. Union Nut (BR 700)
    Allows simple adjustment of blower tube length.
19. Blower Tube
    Directs the airstream.
20. Throttle Cable
    For connecting the throttle trigger to the engine.
21. Throttle Cable Clamp
    For securing the throttle cable in position.
22. Spacer
    Designed to reduce the risk of burns and fire.
23. Muffler with Spark Arresting Screen
    Reduces engine exhaust noise and diverts exhaust gases away from the operator. The spark arresting screen is designed to reduce the risk of fire.

Anti-Vibration System (not illustrated)
The anti-vibration system includes a number of antivibration elements designed to reduce the transmission of vibration created by the engine to the operator.

# Rating Plate
Contains the product's serial number.

Safety Symbols on the Product

Blower
The following safety symbols are found on the blower.

To reduce the risk of injury, follow the specified safety precautions.

Read and follow all safety precautions in the instruction manual. Improper use can lead to serious or fatal personal injury or property damage.

To reduce the risk of eye injury, always wear proper eye protection. Power tool noise may damage your hearing. Always wear proper sound barriers (ear plugs or ear mufflers) to protect your hearing

To reduce the risk of personal injury from blown objects, never direct the air flow toward bystanders or pets.

To reduce the risk of serious or fatal injury or illness from inhaling toxic exhaust gases, start and operate the blower only outdoors in a well ventilated work area.

To reduce the risk of personal injury, keep hair and loose-fitting clothing away from the air intake.

To reduce the risk of personal injury from high velocity air flow and blown objects, keep bystanders at least 50 ft. (15 m) away.

IMPORTANT SAFETY INSTRUCTIONS

Intended Use

• This blower is designed for blowing leaves, grass, and similar material from yards, gardens, sidewalks, driveways, decks, patios and similar surfaces in the manner and in the conditions described in this manual. Use of the blower for operations different than intended could result in serious injury or death.
  • Blow leaves, grass, and similar material only.
• Improper use could result in personal injury or property damage, including damage to the blower.
  • Use the blower only as described in this manual.
  • Never attempt to modify or override the blower's controls or safety devices in any way.
  • Never use a blower that has been modified or altered from its original design.

Operator

• Working with the blower can be strenuous. The operator must be in good physical condition and mental health. To reduce the risk of personal injury from fatigue and loss of control:
  • Check with your doctor before using the blower if you have any health condition that may be aggravated by strenuous work.
  • Do not operate the blower while under the influence of any substance (drug, alcohol or medication, etc.) that might impair vision, balance, dexterity or judgment.
  • Be alert. Do not operate the blower when you are tired. Take a break if you become tired.
  • Do not permit minors to use the blower.
  • Bystanders, especially children, and animals should not be allowed in the area where the blower is in use.
• Prolonged use of a blower (or other power tools) exposing the operator to vibration may produce white finger disease (Raynaud's phenomenon) or carpal tunnel syndrome. These conditions reduce the hand's ability to feel and regulate temperature. They produce numbness and burning sensations and may also cause nerve and circulation damage as well as tissue necrosis.
• All factors which contribute to white finger disease are not known. 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 white finger disease.
• STIHL blowers are equipped with an anti-vibration ("AV") system designed to reduce the transmission of vibration from the blower to the operator's hands. To reduce the risk of white finger disease and carpal tunnel syndrome:
  • Wear gloves while working and keep your hands warm.
  • Keep the blower and its AV system well maintained. A blower with loose components or with damaged or worn AV elements 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.
• These precautions do not guarantee that you will not sustain white finger disease or carpal tunnel syndrome.
  • Closely monitor the condition of your hands and fingers if you are a regular operator.
  • Seek medical advice immediately if any of the above symptoms appear.
• The ignition system of this machine produces an electromagnetic field of a very low intensity. This field may interfere with some pacemakers or implanted medical devices. To reduce the risk of injury:
  • Persons with a pacemaker or other implanted medical device should consult their physician and the device manufacturer before operating this blower.

Personal Protective Equipment

• Severe injuries may result if hair, clothing or apparel are drawn into the air intake or otherwise become entangled in the components of the blower. To reduce the risk of severe personal injury:
  • 
    Wear sturdy and snug-fitting clothing that also allows complete freedom of movement.
  • 
    Avoid loose-fitting jackets, scarves, neckties, flared or cuffed pants, jewelry and any other apparel that could be drawn into the air intake.
  • Secure hair above shoulder level before starting work.
• To reduce the risk of eye injury:
  • 
    Always wear goggles or close-fitting protective glasses with adequate side protection that are impact-rated and marked as complying with CSA Z94.
• Prolonged exposure to power tool noise may result in permanent hearing damage. To reduce the risk of hearing damage:
  • 
    Wear sound barriers (ear plugs or ear muffs).
  • Regular operators should have their hearing checked periodically.
  • Be particularly alert and cautious when using hearing protection. Your ability to hear shouts, alarms or other audible warnings is restricted.
• Good footing is very important. To help maintain a secure footing and reduce the risk of injury while working:
  • 
    Wear substantial footwear with non-slip soles. Do not wear sandals, flip-flops, open-toed or similar footwear. Wear steel-toed safety boots.
• To help reduce the risk of personal injury:
  • 
    STIHL recommends wearing heavy-duty non-slip work gloves made of leather or another wear-resistant material when handling the blower.

Blower

• This blower is intended only for garden and landscape maintenance. Use for other purposes may increase the risk of personal injury and property damage.
  • Read and follow the operating instructions in this manual for approved applications.
• To reduce the risk of personal injury to the operator and bystanders:
  • Always shut off the engine before assembling, transporting, adjusting, inspecting, cleaning, servicing, maintaining or storing the blower.
  • Shut off the blower anytime it is not in use.
• To reduce the risk of fire and explosion:
  • Only use the spark plug specified in this instruction manual and make sure it and the ignition lead are clean and in good condition.
  • Always press the spark plug boot snugly onto the spark plug terminal of the proper size.
  • Never test the ignition system with the spark plug boot removed from the spark plug or with a removed spark plug.
• Although certain unauthorized attachments may fit your STIHL blower, their use may be extremely dangerous. Only attachments supplied by STIHL or expressly approved by STIHL for use with this specific model are recommended.
  • Use only attachments supplied or expressly approved by STIHL.
  • Never modify this blower in any way.
  • Never attempt to modify or override the blower's controls or safety devices in any way.
  • Never use a blower that has been modified or altered from its original design.
• Any modification to your muffler or spark arresting screen could cause an increase in heat radiation, sparks or sound level, thereby increasing the risk of fire, burn injury or hearing loss. You may also permanently damage the engine.
  • Never modify your muffler or spark arresting screen.
• If the blower is dropped or subjected to similar heavy impacts:
  • Check that it is undamaged, in good condition and functioning properly before continuing work.
  • Check that the fuel system is tight and has no leaks.
  • Check that the controls and safety devices are working properly.
  • Never work with a damaged or malfunctioning blower. In case of doubt, have the blower checked by your authorized STIHL servicing dealer.
• Genuine STIHL replacement parts are specifically designed to match your blower and meet safety and performance requirements. Use of parts that are not authorized or approved by STIHL may cause serious or fatal injury or property damage.
  • STIHL recommends that only identical STIHL replacement parts be used.

Fueling Instructions

Fuel

• Gasoline and its vapors are extremely flammable. Your STIHL blower uses an oil-gasoline mixture for 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 blower.
  • Note that combustible fuel vapor may escape from the fuel system.

Pick a Safe Location for Fueling

• 
  To reduce the risk of fire and explosion while fueling:
  • Always remove the blower from the operator's back and place it on the ground before attempting to fuel the blower.
  • Fuel your blower in a well-ventilated area, outdoors away from flames, pilot lights, heaters, electric motors, and other sources of ignition. Vapors can be ignited by a spark or flame many feet away.
  • Select bare ground for fueling and move at least 10 ft. (3 m) from the fueling spot before starting the engine.
  • Wipe off any spilled fuel before starting your blower.
  • Take care not to get fuel on your clothing. If this happens, change your clothing immediately.

Allow the Blower to Cool Before Removing the Fuel Cap

• Gasoline vapor pressure may build up inside the fuel tank. The amount of pressure depends on a number of factors, such as the fuel used, altitude, and temperature. To reduce the risk of burns and other personal injury from escaping gas, vapor and fumes:
  • Always shut off the engine and allow it to cool before removing the fuel cap.
• The engine is air cooled. When it is shut off, cooling air is no longer drawn across the cylinder and engine temperatures will rise for several minutes before starting to cool. In hot environments, cooling will take longer. To reduce the risk of burns and other personal injury from escaping gas vapor and fumes:
  • Allow the blower to cool. If you need to refuel before completing a job, turn off the machine and allow the engine to cool before opening the fuel tank.

Fuel Spraying or "Geysering"

• Removing the cap on a pressurized fuel tank can result in gasoline, vapors and fumes being forcefully sprayed out from the fuel tank in all directions. The escaping gasoline, vapors or fumes can cause serious personal injury, including fire and burn injury, or property damage.
• Sometimes also referred to as "fuel geysering," fuel spraying is an expulsion of fuel, vapors and fumes which can occur in hot conditions, or when the engine is hot, and the tank is opened without allowing the blower to cool adequately. It is more likely to occur when the fuel tank is half full or more.
• Pressure is caused by fuel and heat and can occur even if the engine has not been running. When gasoline in the fuel tank is heated (by ambient temperatures, heat from the engine, or other sources), vapor pressure will increase inside the fuel tank.
• Some blends of gasoline, particularly winter blends, may cause tanks to pressurize more quickly or create greater pressure. At higher altitudes, fuel tank pressurization is more likely.

How to Avoid Fuel Spraying

• Removing the fuel cap on a pressurized tank can result in gasoline, vapors and fumes being forcefully sprayed out from the fuel tank in all directions. To reduce the risk of burns, serious injuries or property damage from fuel spraying:
  • Follow the fueling instructions in this chapter.
  • Always assume your fuel tank is pressurized.
  • Allow the blower to cool before removing the fuel cap.
  • If you need to refuel before completing a job, turn off the machine and allow the engine to cool before removing the fuel cap. In hot environments, cooling will take longer. The engine is air cooled. When it is shut off, cooling air is no longer drawn across the cylinder and the engine temperature will rise for several minutes before starting to cool.
• After the blower has cooled appropriately, follow the safety instructions in this chapter for removing the cap.
  • Never remove the cap by turning it directly to the open position.
  • First check for residual pressure by slowly turning the cap approximately 1/2 turn counter-clockwise.
  • The cap should be held in place by the threads while allowing residual vapor/pressure to be relieved.
  • Once any residual pressure has been relieved, turn the cap until it can be removed from the tank opening.
  • Use only good quality fuel that is appropriate for the season (summer v. winter blends). Some blends of gasoline, particularly winter blends, are more volatile and can contribute to fuel spraying.

Removing the Threaded Fuel Filler Cap

• After allowing the blower to cool, remove the fuel filler cap slowly and carefully to allow any remaining pressure buildup in the tank to release:
  • While maintaining steady, downward pressure, slowly turn the cap approximately 1/2 turn counterclockwise.
  • If any significant venting occurs, immediately re-seal the tank by turning the cap clockwise to the closed position. Allow the blower to cool further before attempting to open the tank.
  • Turn the cap to the open position only after the contents of the tank are no longer under pressure.
  • Never remove the cap by turning it directly to the open position without first allowing the blower to cool adequately and then releasing any residual pressure by slowly turning it approximately 1/2 turn counterclockwise.
  • Never attempt to remove the cap while the engine is still hot or running.

Installing the Threaded Fuel Filler Cap

• An improperly tightened fuel filler cap can loosen or come off and spill quantities of fuel. To reduce the risk of fuel spillage and fire from an improperly installed fuel cap, correctly position and tighten the cap by hand with as much force as possible.

Damaged or Broken Cap

If your fuel cap does not tighten properly, it may be damaged or broken. Stop using the blower and take it to your authorized STIHL dealer for repair.

Vapor Lock

• Vapor lock occurs when fuel in the fuel line or carburetor vaporizes, causing bubbles to block the free flow of liquid fuel into the carburetor.
• Vapor lock cannot be relieved or affected by opening the fuel tank. Removing the fuel filler cap without first allowing the blower to cool adequately can result in fuel spraying. Always follow the instructions in this section when removing the fuel cap.
• To relieve vapor lock:
  • Press the manual fuel pump bulb at least 20 to 30 times – even if the bulb is already filled with fuel – to clear the vapor and send liquid fuel into the carburetor. Then start the blower. For specific starting instructions, see the appropriate section of your instruction manual.
  • If the manual fuel pump bulb will not be filled, place the Choke Knob to the position and pull the starter cord until the engine runs.
  • If your blower will not restart, or if vapor lock occurs again, the blower is being used in conditions too extreme for the fuel being used. Discontinue use and let the engine cool completely before attempting to start the blower.
  • Using good quality, fresh fuel (stored less than 30 days) also can help reduce the occurrence of vapor lock.

Starting

• To reduce the risk of burns and other personal injury from escaping gas vapor and fumes:
  • Move at least 10 ft. (3 m) from the fueling spot before starting the engine.
  • Start your blower only outdoors.
• To reduce the risk of serious or fatal injuries to the operator or bystanders from loss of control:
  • Start the blower only as described in the "Starting" chapter in this manual.
  • When you pull the starter grip, do not wrap the starter rope around your hand.
  • Do not let the grip snap back. Guide the starter rope to rewind it properly.
  • Once the engine has started, immediately blip the throttle trigger, which should cause the choke knob to move to the run position and allow the engine to slow down to idle.

Using the Blower

Before Operation

• Misuse or unauthorized use may result in personal injury and property damage.
  • Use the blower only as described in this instruction manual.
• To reduce the risk of fire and explosion:
  • Check fuel system for leaks, especially the visible parts, (e.g., filler cap, hose connections).
  • Securely mount the spark plug boot on the spark plug.
  • Do not start the engine if the fuel system has leaks or the blower is otherwise damaged. Have the blower repaired by an authorized STIHL servicing dealer before using it.
• Using a blower that is modified, damaged, improperly adjusted or maintained, or not completely and securely assembled can increase the risk of serious personal injury.
  • Never operate a blower that is modified, damaged, improperly maintained or not completely and securely assembled.
  • Always check your blower for proper condition and operation before starting work, particularly the throttle trigger and Master Control Lever.
  • Ensure that the throttle trigger moves freely and springs back into place when released.
  • Never attempt to modify or override the controls or safety devices in any way. Check the fan housing for damage before starting. Cracks or holes could allow foreign objects to contact the fan wheel. If any such damage is found, stop using the blower and contact your STIHL dealer for repair.
  • If your blower or any part is damaged or does not function properly, have it repaired before use.

Holding and Controlling the Blower

• To maintain a firm grip and properly control your blower:
  • Keep the handles clean and dry at all times. Keep them free of moisture, pitch, oil, grease and resin.
• To reduce the risk of serious or fatal injuries to the operator or bystanders from loss of control:
  • Always carry the blower on your back as a backpack with the straps of the harness comfortably and securely positioned over both shoulders.
  • Adjust the blower harness straps so that the backplate fits snugly and securely against your back.
  • Never carry the unit with the strap(s) over just one shoulder.
  • Wrap your fingers tightly around the control handle, keeping it cradled between your thumb and forefinger (see illustration).
    
• To reduce the risk of serious or fatal injuries to the operator or bystanders from loss of control, keep proper footing and balance at all times:
  • Never work on a ladder, roof, in a tree or while standing on any other insecure support.
  • Take special care in overgrown or wet terrain and always watch for hidden obstacles such as tree stumps, roots, rocks, holes and ditches to avoid stumbling or falling.
  • Be extremely cautious when working on slopes or uneven ground.
  • Use extra care when working on stairs.
  • For better footing, always clear away fallen branches, scrub and cuttings. Freshly debarked logs and other material can increase the danger of slipping, tripping or falling.
  • Never operate the blower above shoulder height.
  • Do not overreach. Keep proper footing and balance at all times.

Working Conditions

• Operate your blower only under good visibility during favorable daylight conditions.
  • Postpone the work if the weather is windy, foggy, rainy or inclement.
• Your blower is a one-person machine.
  • Bystanders, especially children, and animals should not be allowed in the area where it is in use.
  • Shut off the engine immediately if you are approached.
• To reduce the risk of injury to bystanders and unauthorized users:
  • Never leave the blower unattended when the engine is running.
  • Shut off the engine during work breaks and any other time the blower is not in use.
• Small particles (e.g. dust) blown through the blower tube and nozzle can cause static charging. This is more common in low humidity and high dust conditions. The blower has features designed to reduce the buildup and discharge of static electricity. For example, 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. To reduce the risk of personal injury from static discharge:
  • Ensure that the blower is properly assembled.
  • Always hold the blower by the control handle and avoid unnecessary contact with the blower tube and nozzle.
  • If your blower is properly assembled and you are still experiencing static shocks, try operating your blower without gloves, which may be interfering with the grounding of the charge.
• To reduce the risk of fire and explosion:
  • Never operate the blower in a location where combustible gases, liquids, vapors, dusts or other combustible materials and substances are present.
  • Read and follow recommendations issued by government authorities (e.g. CCOHS) for identifying and avoiding the hazards of combustible gases, liquids, vapors, dusts or other combustible materials and substances.
  • Never modify the blower muffler or spark arresting screen.
• As soon as the engine is running, it generates toxic exhaust gases 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 or illness from inhaling toxic exhaust gases:
  • 
    Start and operate the blower only outdoors in a well ventilated work area. Never operate the blower indoors, in confined spaces or other poorly ventilated locations.
  • If exhaust fumes become concentrated due to insufficient ventilation, clear obstructions from the work area. Ensure proper ventilation before proceeding.
• Use of this blower can generate dust and other substances containing chemicals known to cause respiratory problems, cancer, birth defects and other reproductive harm.
  • Consult governmental agencies such as ECCC, CCOHS and PHAC and other authoritative sources on hazardous materials if you are unfamiliar with the risks associated with the particular substances with which you are working.
• 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 or other airborne contaminants, especially those with a smaller particle size, may cause respiratory or other illnesses. This includes wood dust, especially from hardwoods, but also from some softwoods such as Western Red Cedar.
  • Control dust at the source where possible.
  • To the extent possible, operate the blower so that the wind or operating process directs any dust, mist or other particulate matter raised by the blower away from the operator.
  • When respirable dust or other particulate matter cannot be kept at or near background levels, always wear a respirator that is approved by PHAC and rated for worksite-specific conditions. Follow the recommendations of governmental authorities (e.g., CCOHS/PHAC) and occupational and trade associations.
• If the surrounding ground is coated with a chemical substance, such as pesticide or herbicide:
  • Read and follow the instructions and warnings that accompanied the substance coating the vegetation or surrounding ground.
• Breathing asbestos dust is dangerous and can cause severe or fatal injury, respiratory illness or cancer, including mesothelioma. The use and disposal of asbestos-containing products is strictly regulated by CCOHS and ECCC.
  • Do not use your blower to blow or disturb asbestos or asbestos-containing products.
  • Stop work immediately and contact the relevant state and local authorities and/or ECCC, your employer or local CCOHS representative if you have reason to believe that you might be disturbing asbestos.
• 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.
• If the substance being blown is a commercial substance, review 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 harm, etc.

Operating Instructions

• In the event of an emergency:
  • Shut off the engine immediately.
• The blower fan between the air intake and output opening rotates whenever the engine is running. To reduce the risk of injury from contact with the blower fan:
  • Never operate the blower with a missing, cracked or worn intake screen or housing.
  • Never operate the blower without a properly mounted blower tube and nozzle.
  • Keep hair, loose clothing, fingers and all parts of the body away from openings and moving parts of the blower.
• The air flow from the blower can propel small objects at high speed. To reduce the risk of eye or other serious personal injuries to bystanders from blown objects:
  • 
    Keep bystanders and pets at least 50 ft. (15 m) away when the blower is running.
  • Never direct the air flow toward bystanders or pets.
  • 
    Do not allow the blower to be used as a toy.
  • Shut off the engine immediately if you are approached.
• A missing, cracked or worn intake screen or housing may result in an increased risk of injury from thrown objects.
  • Never operate a blower that has a missing, cracked or worn intake screen or housing.
• Inserting any foreign object into the air intake or nozzle may result in property damage, including damage to the blower itself, and serious injury to the operator or bystanders as a result of the object or broken parts being blown at high speed.
  • Never insert any objects into the nozzle or air intake of the blower.
  • Immediately shut off the engine if it starts to vibrate abnormally.
• Using the blower to spread herbicides, pesticides, fertilizers or other chemical substances can be dangerous and may cause serious or fatal injury to persons and damage to the environment.
  • Never use the blower to disperse or spread chemicals of any kind.
• The muffler and 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 the risk of burn injury:
  • Allow the engine to cool before inspecting, transporting or storing the blower. Avoid contacting the muffler while it is still hot following operation.
  • Keep the area around the muffler clean. Remove excess lubricant and all debris such as pine needles, branches or leaves.
  • Allow the blower to cool on concrete, metal, bare ground or solid wood away from any combustible substances.
  • Do not continue work with a damaged or improperly mounted cylinder housing or a damaged/deformed muffler shell. It may interfere with the cooling process of the muffler.
• The muffler of this blower is furnished with a spark arresting screen. If your gas/oil mix ratio is correct (i.e., not too rich), this screen will normally stay clean as a result of the heat from the muffler and need no service or maintenance. To reduce the risk of fire from the emission of hot particles:
  • Never operate your blower with a missing or damaged spark arresting screen.
  • If you experience loss of performance and suspect a clogged screen, have your muffler serviced. Some state or federal laws or regulations may require a properly maintained spark arrester for certain uses.
• In California, it is a violation of § 4442 or § 4443 of the Public Resources Code to use or operate gasoline-powered tools on forest-covered, brush-covered or grass-covered land unless the engine's exhaust system is equipped with a complying spark arrester that is maintained in effective working order. The owner/operator of this product is responsible for properly maintaining the spark arrester. Other states or governmental entities/agencies, such as the Canadian Forest Service, may have similar requirements.
  • Do not use your blower around flammable materials or around vegetation or brush when there is a risk of fire or wildfire.
  • Contact your local fire authorities or the Canadian Forest Service if you have any question about laws or regulations relating to fire protection requirements.

Maintenance, Repair and Storage

Warnings and Instructions

• There are no user-authorized repairs for the blower. To reduce the risk of fire or other personal injury and property damage:
  • Users may carry out only the cleaning and maintenance operations described in this manual.
  • Strictly follow the cleaning and maintenance instructions in the appropriate sections of this instruction manual.
  • STIHL recommends that all repair work be performed by authorized STIHL servicing dealers.
• To reduce the risk of personal injury and property damage:
  • Shut off the engine before inspecting the blower or carrying out any cleaning, maintenance or repair work. Always shut off the engine before storing the blower, and any other time it is not in use.
• Use of parts that are not authorized or approved by STIHL may cause serious or fatal injury or property damage.
  • STIHL recommends that only identical STIHL replacement parts be used for repair or maintenance.
• Improper storage can result in unauthorized use, damage to the blower and an increased risk of fire and other personal injury or property damage.
  • Shut off the engine and engage before storing.
  • Tighten all nuts, bolts and screws after each use.
  • Store the blower indoors in a dry, secure place that cannot be accessed by children or other unauthorized users.

Before Starting Work

Preparing the Blower for Operation

Before starting work:

• Mount the blower tube.
• Mount the control handle.
• Mount the nozzle.
• Adjust the control handle.
• Refuel the blower.
• Put on and adjust the harness.
• Check the controls for proper function and condition.

Assembling the Blower

Mounting the Blower Tube

Never operate your blower without a properly mounted blower tube and nozzle. Use only attachments supplied or expressly approved by STIHL.

To mount the blower tube:

• Push the throttle cable clamp (2) onto the elbow (1).
• Line up the positioning marks (4) and push the pleated hose (3) onto the elbow (1).
• Push the throttle cable clamp (2) onto the pleated hose (3).
• Line up the positioning marks (4) on the throttle cable clamp (2) and elbow (1).
  The screw lug (6) should be on the underside of the elbow/pleated hose.
• Secure the throttle cable clamp with the screw (5).

• Push the throttle cable clamp (7) onto the blower tube (8).
• Push the blower tube (8) into the pleated hose (3). The mount (11) for the control handle should be facing up.
• Push the throttle cable clamp (7) onto the pleated hose (3). The screw lug (10) should be on the underside of the pleated hose/blower tube.
• Secure the throttle cable clamp with the screw (9).

Mounting the Control Handle

To reduce the risk of injury from loss of control, ensure that the control handle is properly and securely mounted before starting work.

To mount the control handle:

• Shut off the engine.
  

• Push the control handle (1) onto the mount (3).
• Insert and tighten the screws (2).
• Secure the throttle cable (4) in the throttle cable clamp (5).

Mounting and Removing the Nozzle

Never operate your blower without a properly mounted blower tube and nozzle. Use only attachments supplied or expressly approved by STIHL.

BR 700 X
To mount the nozzle:

• Align the hole on the nozzle (4) with the lug on the blower tube (3) and push the nozzle (1) onto the blower tube (2).

The nozzle will engage. Once the nozzle and blower tube are assembled, keep them connected during use and storage.

BR 700
To mount the nozzle:

• Align the holes on the nozzle (1) with the lugs on the blower tube (3) and push the nozzle (1) onto the blower tube (2).

The nozzle will engage. Once the nozzle and blower tube are assembled, keep them connected during use and storage.

Adjusting the Blower

Adjusting the Control Handle

The control handle can be mounted to suit the height and reach of the operator.

To adjust the position of the control handle:

• Shut off the engine.
  

• Open the clamping lever (1).
• Move the control handle (2) to the most comfortable position.
• Close the clamping lever (1).

Adjusting the Blower Tube

To adjust the blower tube (BR 700 only)

• Loosen the union nut (1).
• Pull the blower tube (2) out to the required length.
• Tighten the union nut (1).

Putting on the Harness

The operator must be able to remove the blower quickly in the event of an emergency. In an emergency, open and remove the chest strap quickly before dropping the blower to the ground.

To ensure a proper fit:

• Put the blower on your back.
• Adjust the harness straps (1) so that the backplate fits snugly and securely against your back.
• Always wear the blower harness over both shoulders.
• To remove the harness, loosen the harness straps by lifting the sliding adjusters.

To help reduce the risk of injury in the event of an emergency, practice quickly opening the shoulder straps and removing the blower.

NOTICE
To avoid damage, ease the blower to the ground when practicing. Do not allow the blower to drop to the ground and do not throw it.

Mixing Fuel and Refueling the Blower

Mixing Fuel

Information on Fuel
Your engine requires a mixture of high-quality gasoline and 2-cycle air cooled engine oil. This engine is certified to operate on mid-grade unleaded gasoline with a minimum octane rating of 89 and no more than 10% ethanol and 2-cycle oil for air cooled engines at a mix ratio of 50:1.

If you mix the fuel yourself, STIHL recommends the following 2-cycle engine oils:

• STIHL HP Ultra 2-Cycle Engine Oil

NOTICE
Fuel with an octane rating below 89 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.

NOTICE
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 damage the engine. For this reason STIHL recommends that you use only quality unleaded gasoline.

Information on Ethanol Content
Gasoline with an ethanol content of more than 10% can cause running problems and major damage in engines and should not be used. For further details, see www.STIHLusa.com/ethanol.

The ethanol content in gasoline affects engine speed. It may be necessary to readjust the carburetor if you use fuels with varying ethanol content.

The idle speed and maximum speed of the engine change if you switch to a fuel with a much higher or lower ethanol content. This problem can be avoided by always using an ethanol-free fuel or fuel with consistent ethanol levels.

STIHL MotoMix
STIHL MotoMix is ethanol-free, has a high octane rating and ensures that you always use the right gasoline/oil mix ratio.

STIHL MotoMix uses STIHL HP Ultra 2-Cycle Engine Oil suited for high performance engines. For further details, see www.STIHLusa.com/ethanol.

STIHL recommends using MotoMix in your blower. If not using MotoMix, use only STIHL HP Ultra 2-Cycle Engine Oil or equivalent high quality 2-cycle engine oils that are designed for use in air cooled 2-cycle engines.

The use of non-seasonal gasoline blends may increase the potential for pressure to build in the fuel tank during operation. For example, using a winter blend during the summer will increase pressure in the fuel tank. Always use gasoline blends appropriate to the season, altitude and other environmental factors.

Do not use NMMA or TCW rated (2-cycle 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.).

Mixing Fuel

Take care when handling gasoline. Avoid direct contact with the skin and avoid inhaling fuel vapor. Anytime you are filling a container at the fuel pump, remove the container from your vehicle and place it on the ground before filling. To reduce the risk of sparks from static discharge and resulting fire and/or explosion, do not fill fuel containers that are sitting in or on a vehicle or trailer.

Shaking fuel can cause pressure to build in the fuel container. To reduce the risk of fire and severe personal injury or property damage from fuel spraying, allow the fuel container to sit for several minutes before opening. Open the container slowly to release any residual pressures. Never open the fuel container in the vicinity of any ignition source. Read and follow all warnings and instructions that accompany your fuel container.

To properly mix fuel:

• If not using STIHL MotoMix, only mix sufficient fuel for a few days of work. Never mix more than a 30-day supply of fuel.
• Store the fuel mix in an approved fuel container.
• Depending on the required amount of fuel, determine the correct amounts of 2-cycle engine oil and gasoline in a mix ratio of 50:1. Examples for fuel mixes:
  • 1 US gals of gasoline: 2.6 oz. of 2-cycle engine oil
  • 2.5 US gals of gasoline: 6.4 oz. of 2-cycle engine oil
  • 5 US gals of gasoline: 12.8 oz. of 2-cycle engine oil
• When mixing, pour oil into the container first, and then add gasoline. Close the container and shake it by hand to ensure proper mix of oil and gasoline.
• Dispose of empty mixing-oil containers only at authorized disposal locations.

Refueling the Blower

Removing the fuel cap on a pressurized fuel tank can result in gasoline, vapors and fumes being forcefully sprayed out from the tank in all directions. The escaping gasoline, vapors or fumes, sometimes referred to as fuel spraying or "geysering," can cause serious personal injury, including fire and burn injury, or property damage.

Fuel spraying can occur when the engine is hot and the tank is opened while under pressure. It can occur in hot environments even if the engine has not been running.

Spraying is more likely to occur when the fuel tank is half full or more. Always follow the fueling instructions in this manual:

• Treat every fuel tank as if it is pressurized, particularly if it is half full or more.
• Always allow the blower to cool adequately before attempting to open the fuel tank or refueling. This will take longer in hot conditions.
• Never open the fuel tank while the engine is still hot or running.
• Never open the fuel tank or re-fuel the blower near any sparks, flames or other ignition sources.
• Pick the right fuel: use only good quality (89 octane or higher), fresh fuel blended for the season.
• Vapor lock: do not remove the fuel cap in an effort to relieve vapor lock. Removing the cap has no effect on vapor lock.
• Be aware that fuel spraying is more likely at higher altitudes.

Opening and Refueling

To refuel the blower:

• Shut off the engine.
• Allow the blower to cool. Never attempt to remove the cap while the engine is still hot or running.
• Position the blower on a level surface with the fuel filler cap facing upwards.
• Clean the area around the fuel filler cap with a slightly dampened cloth.
  
• While maintaining steady, downward pressure, slowly turn the cap approximately a 1/2 turn counter-clockwise.
• If any significant venting occurs, immediately re-seal the tank by turning the cap clockwise to the closed position. Allow the blower to cool further before attempting to open the tank.
• Remove the fuel filler cap and fill the tank with fuel.
• Take care not to spill fuel while refilling the tank.
• Do not overfill the tank. Leave approximately 0.5 in. (13 mm) of air space.

Closing

To close the tank:

• Position the cap on the tank filler neck and press it down while turning it clockwise by hand with as much force as possible.
• Check for tightness.
• If your fuel cap still does not tighten properly, it may be damaged or broken. Stop using the blower and take it to your authorized STIHL dealer for repair.

Starting the Engine

Starting Procedure

Pre-Starting Procedure

Follow the pre-starting procedure if the following applies:

• The engine has not been started and is cold.

When can the engine be started without the pre-starting procedure?

Follow the starting procedure if one of the following applies:

• The engine can be started without preparation if it has been running for at least 1 minute and was only shut off for a short work break.
• The engine started, but shut off when it was accelerated the first time.
• The engine shut off because the fuel tank ran dry.
  • Continue to "Starting the Engine.

Pre-Starting Procedure

To perform the pre-starting procedure:

• Make sure you have a secure and firm footing.
• Position the blower on a level surface and keep bystanders away.
  
• Set the Master Control Lever (1) to position .
• Press the manual fuel pump bulb (2) at least six times – even if the bulb is filled with fuel.
  
• Turn the choke knob (3) to position .

• Place the blower with your left hand on the housing and one foot on the base plate.
• Pull the starter grip slowly with your right hand until you feel it engage.
• Pull the starter grip quickly and allow the starter rope to rewind several times until the engine fires and shuts off.
• Do not pull out the starter rope to full length and do not let the starter grip snap back. Guide it slowly back into the housing so that the starter rope can rewind properly.
• Start the engine.

Starting the Engine

Never operate your blower if it is damaged, improperly adjusted or maintained, not completely and securely assembled or not functioning properly. To reduce the risk of personal injury, always wear proper clothing and protective apparel, including proper eye protection, when operating your blower.

Before starting the engine:

• Make sure you have a secure and firm footing.
• Position the blower on a level surface.

To start the engine:

• Set the Master Control Lever (1) to position
• Press the manual fuel pump bulb (3) at least six times – even if the bulb is filled with fuel.
  
• Turn the choke knob (4) to the position.
• Place your left hand on the housing and one foot on the base plate.
• Pull the starter grip slowly with your right hand until you feel it engage.
• Pull the starter grip quickly and allow the starter rope to rewind several times until the engine runs.
• Do not pull out the starter rope to full length and do not let the starter grip snap back. Guide it slowly back into the housing so that the starter rope can rewind properly.
• Blip the throttle trigger (2). The Master Control Lever (1) will move to the run position and the engine will settle down to idle speed.

Shutting Off the Engine

Shutting Off the Engine

To shut off the engine:

• Release the throttle trigger.
• Move the Master Control Lever (1) to the stop position .
  The engine stops and the Master Control Lever springs back to position when released.

Checking the Blower

Testing the Controls

Before starting work, confirm that the throttle trigger is undamaged and functioning properly.

To reduce the risk of serious or fatal injuries, always wear proper clothing and protective apparel, including proper eye protection, and keep bystanders out of the area while testing the controls.

Stopping the Engine

• Start the engine.
• Move the Master Control Lever to position . The engine should stop and the Master Control Lever should spring back to position when released.
• If the engine does not stop, move the choke knob to position and have the unit repaired before use.

During Operation

Using the Blower

Always wear proper clothing and protective apparel, including proper eye protection. Never direct the air flow toward bystanders. Keep bystanders at least 50 ft. (15 m) away from the work area. Work carefully and maintain proper control of the blower.
The blower is designed for single-handed operation with the right hand.

• Hold the unit firmly with your hand, keeping the handle cradled between your thumb and fingers.
• Direct the air flow at the edges of the pile of material to be blown.

NOTICE
Never direct the air flow toward objects such as vehicles or windows.
Observe all applicable laws, regulations, standards and ordinances.

Using the Power Hold Feature

The Master Control Lever can be locked in any position.

To use the power hold feature:

• Start the engine.
• Squeeze the throttle trigger (2) until you reach the desired blowing force for your task.
• While holding the throttle trigger push the Master Control Lever (1) up.
  The trigger switch can be released and the blower will continue operating at the selected blowing force.

Push the Master Control Lever back to position to stop using the power hold feature.

Adjusting the Carburetor

Winter Operation

The carburetor may ice up when the blower is used at ambient temperatures below 50°F (10°C). To prevent icing, the shutter must be converted to allow warm air from around the engine to heat the carburetor.

• Shut off the engine.
  
• Remove the screws (1).
• Remove the filter cover (2) and air filter (3).
• Clean the area around the air filter with a damp cloth or a soft brush.
• Loosen the screw (4).
  

• Swing the shutter (5) to the winter position.
• Tighten the screw (4).
• Refit the air filter (3) and the filter cover (2).
• Insert and tighten the screws (1).

NOTICE
The winter operation setting should only be used in ambient temperatures below 50°F (10°C). Use at higher temperatures may cause the engine to overheat, resulting in permanent damage. Always remember to return the shutter to the configuration that is appropriate for ambient temperature conditions.

Summer Operation

The shutter must be set to summer mode when working at temperatures above 70°F (20°C).

• Shut off the engine.
  

• Remove the screws (1).
• Remove the filter cover (2) and air filter (3).
• Clean the area around the air filter with a damp cloth or a soft brush.
• Loosen the screw (4).
• Swing the shutter (5) to the summer position .
  
• Tighten the screw (4).
• Refit the air filter (3) and the filter cover (2).
• Insert and tighten the screws (1).

After Finishing Work

Preparing for Transportation or Storage

To reduce the risk of personal injury from unintended activation or unauthorized use, shut off the engine before transporting the blower or putting it down.

To prepare the blower for transportation or storage:

• Shut off the engine.
• Wait for the engine to cool down.

Transporting Blower

When transporting the blower:

• Carry the blower as a backpack with the straps of the harness over both shoulders or with the carrying handle integrated into the backplate.
  
• When transporting the blower in a vehicle, secure the blower tube with the hook and loop fastener on the carrying handle and position the blower to prevent turnover, impact and damage.

Storing Blower

Store the blower indoors in a dry, secure place that is inaccessible to children and other unauthorized users. Improper storage can result in unauthorized use and damage to the blower.

When storing the blower:

• Wait for the engine to cool down.
• Keep the machine with a full tank of fuel in a dry place, well away from sources of ignition, until you need it again.
• Store the blower indoors in a dry and secure location, out of the reach of children and other unauthorized persons.

When storing the blower for three months or longer:

• Drain and clean the fuel tank in a well ventilated area. Dispose of fuel properly in accordance with local environmental requirements.
• Run the engine until it shuts off. The carburetor will be dry. This helps prevent the carburetor diaphragms from sticking together.
• Store the blower indoors in a dry and secure location, out of the reach of children and other unauthorized persons.

Cleaning

Cleaning the Blower

To reduce the risk of personal injury from unintended activation, shut off the engine before carrying out any cleaning work. Users of this blower should carry out only the cleaning described in this manual.

To clean the blower:

• Shut off the engine.
• Clean a dirty intake screen carefully with a soft brush whenever required.
• Clean the blower's polymer components with a slightly dampened cloth. Do not use detergents or solvents. They may damage the polymer components.
• Do not use a pressure washer to clean the blower or otherwise spray it with water or other liquids.

Cleaning the Spark Plug

To reduce the risk of fire and burn injury, use only spark plugs authorized by STIHL. Always press the spark plug boot snugly onto the spark plug terminal.

Do not use a spark plug with a detachable SAE adapter terminal (1). Arcing may occur that could ignite combustible fumes and cause a fire. This can result in serious injuries or damage to property. Only use resistor type spark plugs with solid, non-threaded terminals (2).

Using the wrong fuel mix (too much engine oil in the gasoline), a dirty air filter, and unfavorable running conditions (running for extended periods at partial throttle) can affect the condition of the spark plug and cause deposits to form on the insulator nose, degrading performance.

To clean the spark plug:

• Shut off the engine.
• Allow the blower to cool down.
  
• Remove the spark plug boot (1).
• Clean the area around the spark plug with a damp cloth or soft brush.
• Unscrew the spark plug (2) and clean it with a damp cloth.
• If the spark plug is corroded, replace it.
• If the spark plug is damp, dry it thoroughly before re inserting it.
• Insert the spark plug and tighten it down firmly.
• Connect the spark plug boot and press it down firmly.

Cleaning the Spark Arresting Screen

To reduce the risk of fire from the emission of hot particles, Never operate your blower with a missing or damaged spark arresting screen. Never modify your muffler or spark arresting screen. To reduce the risk of fire from the buildup of debris such as pine needles, branches or leaves, make sure the muffler plugs are in place before starting work.

NOTICE
Some state or federal laws or regulations may require a properly maintained spark arrester for certain uses.

To clean the spark arrester screen:

• Shut off the engine.
• Allow the blower and muffler to cool down.
  
• Loosen the screws (1).
• Remove the scoop (2).
  
• Remove the spark arresting screen (3). Clean the spark arresting screen. If the spark arresting screen is clogged or heavily carbonized, have it replaced.
• Refit the spark arresting screen.
• Re-insert the scoop and tighten the screw.

Inspection and Maintenance

Inspection and Maintenance Chart

¹⁾ STIHL recommends an authorized STIHL servicing dealer

Inspecting and Maintaining the Blower

To reduce the risk of personal injury from unintended activation, shut off the engine before inspecting the blower or carrying out any maintenance. Carry out only the maintenance operations described in this manual. There are no user-authorized repairs. STIHL recommends that repair work be performed by authorized STIHL servicing dealers.

To reduce the risk of personal injury or property damage from contact with hot parts, never operate your blower with a missing or damaged spacer.

Proper maintenance of the blower includes the following activities:

• Install a new spark plug after approximately 100 operating hours or earlier if the electrodes are badly eroded or corroded.
• Have the spark arresting screen inspected and cleaned periodically by an authorized STIHL servicing dealer.
• Inspect the spacer of the blower and replace if damaged.
• Inspect the air filter of the blower and replace if damaged.
• Have the valve clearance checked and, if necessary, adjusted by an authorized STIHL servicing dealer if the power is low or the cranking effort is very high.
• Have worn, missing or damaged safety labels replaced by an authorized STIHL servicing dealer.

If you make a warranty claim for a component that has not been serviced or maintained properly, coverage may be denied.

Inspecting and Maintaining the Nozzle

• Shut off the engine.
  

The blower nozzle is manufactured with wear marks to help the operator identify excessive wear. The wear marks depicted above must remain visible.

• If the wear marks are no longer visible: Stop working and have the nozzle replaced.

Troubleshooting Guide

Blower

Many performance issues can be resolved with a few simple steps. When troubleshooting, STIHL recommends that you start with the following measures:

• Replace the air filter.
• Clean or replace the spark plug.
• Clean or replace the spark arresting screen.
• As appropriate for conditions, set the blower's "shutter" for winter or summer operation.
• Adjust the blower's idle speed.
• If these measures do not resolve the issue, continue to the steps described below.

Always shut off the engine before carrying out any inspection, cleaning or maintenance.

Condition	Possible Cause	Remedy
The engine does not start.	There is insufficient fuel in the fuel tank.	Refuel the blower.
	The carburetor is too hot.	Cool down the blower. Before starting the engine. Press the manual fuel pump bulb at least ten times – even if the bulb is filled with fuel.
	The carburetor is iced up.	Allow the engine to warm up gradually to a temperature of about 50°F (10°C).
The engine idles erratically.	The carburetor is iced up.	Allow the engine to warm up gradually to a temperature of about 50°F (10°C).
The engine stops while idling.	The carburetor is iced up.	Allow the engine to warm up gradually to a temperature of about 50°F (10°C).
The engine does not reach maximum speed.	The throttle cable is not set correctly.	Adjusting the throttle cable.

Adjusting the Carburetor

If you use the blower at high altitude, a slight adjustment of the carburetor setting may be necessary.

• Start the engine.
• Warm up the engine by opening and closing the throttle for about 1 minute.
  

Engine idles or stops while idling:

• Turn the idle speed screw (LA) slowly clockwise (leaner) until the engine runs smoothly.

Adjusting the Throttle Cable

NOTICE
It may be necessary to correct the adjustment of the throttle cable after assembling the machine or after a prolonged period of operation.
Adjust the throttle cable only when the unit is completely and properly assembled.

To adjust the throttle cable:

• Fully depress the throttle trigger (1) and hold it in this position.
• Carefully rotate the screw (2) in the throttle trigger in the direction of the arrow until you feel initial resistance.
• Rotate the screw another half turn in the same direction.

Replacing the Air Filter

Dirty air filters reduce engine power, increase fuel consumption and make starting more difficult.

If there is a noticeable loss of engine power:

• Shut off the engine.
• Allow the blower to cool down.
  
• Loosen the screws (1).
• Remove the air filter cover (2).
• Remove the air filter element (3).
• Clean the area around the air filter with a damp cloth or a soft brush.
• Fit the new filter in the filter housing.
• Fit the filter cover.
• Insert the screws (1) and tighten them.

Specifications

CEPA

The Emission Compliance Period referenced on the Emissions Compliance Label indicates the number of operating hours for which the engine has been shown to meet federal emission requirements.

Category:
A = 300 hours
B = 125 hours
C = 50 hours

STIHL BR 700

• Displacement: 3.95 cu. in. (64.8 cm³)
• Maximum engine speed: 2,500 rpm
• Recommended spark plugs: NGK CMR6H from STIHL BOSCH USR 4AC from STIHL
• Spark plug electrode gap: 0.02 in. (0.5 mm)
• Weight without fuel: 23.6 lbs. (10.7 kg)
• Maximum fuel tank volume: 47.3 oz. (1.4 l)
• Blowing force: 35 N
• Air velocity: 165 mph (74 m/s)
• Air flow rate: 912 cf/min (1550 m³/h)
• Maximum air velocity: 196 mph (88 m/s)
• Air flow rate (without blowing unit): 1095 cf/min (1860 m³/h)

Do not use NMMA or TCW rated (2-cycle 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.).

Symbols on the Blower

Fuel Tank

Shutter configuration for winter operation

Shutter configuration for summer operation

Decompression Valve

Position of the Master Control Lever: Engine is shut

Position of the Master Control Lever: Engine runs or can fire

Position of the choke knob: Used to start a warm

Position of the choke knob: Used to start a cold

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 differs from those described in this manual, please contact your STIHL dealer or the STIHL distributor in your area for assistance.

Replacement Parts and Equipment

Genuine STIHL Replacement Parts

STIHL recommends the use of genuine STIHL replacement parts. Genuine STIHL parts can be identified by the STIHL part number, the logo and, in some cases, by the STIHL parts symbol . The symbol may appear alone on small parts.

Documents / Resources

References

• STIHL CANADA | STIHL

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