STIHL BGA 300 - Cordless Professional Blower Manual

Introduction

Read Instruction Manual thoroughly before use and follow all safety precautions – improper use can cause serious or fatal injury.

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

Because a blower is a high-speed batterypowered 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 power tool.
Do not lend or rent the blower without this instruction manual. Allow only persons who 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.stihlusa.com (for Canada: 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.

Main Parts

Blower

1. Plug
   Connects the blower to the battery.
2. Harness
   For carrying the blower.
3. Lever
   For securing and releasing the battery.
4. Trigger Switch Lockout
   Must be depressed to allow activation of the trigger switch.
5. Power Hold Button
   Holds the selected blowing force.

6. Retaining Latch
   For switching the blower on and selecting the power level.
7. LEDs
   Indicate the unit's power level.
8. Trigger Switch
   Switches the motor on and off.
9. Control Handle
   Handle for the operator's right hand.
10. Union Nut
    Allows simple adjustment of blower tube length.
11. Nozzle
    Directs and concentrates the airstream.
12. Blower Tube
    Directs the airstream.
13. Cable
    For connecting the trigger switch to the motor.
14. Elbow Clamp
    For securing the cable in position.
15. Machine Support
    For resting the blower on the ground.
16. Intake Screen
    Covers the air intake opening and reduces the risk of contact with the blower fan.

# Rating Plate
Contains electrical information and the product's serial number.

Safety Symbols on the Products

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, "Personal Protective Equipment".
	To reduce the risk of personal injury from blown objects, never direct the air flow toward bystanders or pets, "Operating Instructions".
	To reduce the risk of personal injury, keep hair and loose-fitting clothing away from the air intake, "Personal Protective Equipment".
	To reduce the risk of injury or property damage from unintended activation, remove the battery any time the blower is not in use, "Warnings and Instructions".
	To reduce the risk of personal injury from high velocity air flow and blown objects, keep bystanders at least 17 ft. (5 m) away, "Operating Instructions".

Battery

The following safety symbols are found on the AR L series backpack battery.
To reduce the risk of injury, follow the specified safety precautions.

	Read and follow all safety precautions in the battery's instruction manual and the manual for the STIHL tool powered by this battery. Improper use can lead to serious or fatal personal injury or property damage.
	To reduce the risk of personal injury or property damage from fire, explosion or burns, including chemical burns, do not disassemble, crush, drop, damage or heat above 212°F (100°C). Never expose to fire or incinerate, "Warnings and Instructions".
	To reduce the risk of personal injury or property damage from fire, use and store only within an ambient temperature range of 14°F to 122°F ( - 10°C to 50°C), "Warnings and Instructions".
	To reduce the risk of personal injury or property damage from a short circuit, fire or explosion, keep dry. Never immerse in water or other liquids, "Warnings and Instructions".

Batteries sold separately.

IMPORTANT SAFETY INSTRUCTIONS

Introduction

When using an electric blower, basic precautions should always be followed, including the following:
READ ALL INSTRUCTIONS BEFORE USING THE BLOWER!
SAVE THESE INSTRUCTIONS

• To reduce the risk of fire, explosion, electric shock or other personal injury, read and follow the important safety instructions in this chapter. Additional important warnings and instructions are provided in subsequent chapters of this manual.

Intended Use

• This blower is designed for blowing leaves, grass, and similar lightweight material from yards, gardens, sidewalks, driveways, decks, patios and comparable 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 lightweight material only.
• Improper use could result in personal injury or property damage, including damage to the blower.
  • Use the blower and battery 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.
  • Be sure to read and follow the warnings and instructions for your battery and charger before charging or starting work
• This power tool may be powered by a STIHL AR L series backpack battery.

Batteries, chargers and other accessories are sold separately.

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.
• According to STIHL's current knowledge, the electric motor of this blower should not interfere with a pacemaker.
  • However, persons with a pacemaker or other implanted medical device should consult their physician and device manufacturer before operating this blower.

Personal Protective Equipment

• To reduce the risk of personal injury:
  • Always wear proper clothing and protective apparel, including proper eye protection.
• Loss of control and 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.
  • Wear overalls or long pants made of heavy material to help protect your legs. Do not wear shorts.
  • Wear a long-sleeve shirt or jacket.
    
  • 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 ANSI Z87 "+".
• 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.
• To help reduce the risk of personal injury caused by loss of control during operation:
  
  • STIHL recommends wearing heavy-duty non-slip work gloves made of leather or another wear-resistant material when handling the blower.

Blower

• To reduce the risk of electric shock:
  • Do no immerse the blower in water or other fluids.
  • Store the blower indoors.
• This battery-powered blower is intended only for garden and landscape maintenance. Use for other purposes may increase the risk of personal injury and property damage.
  • Read ad follow the operating instructions in this manual for approved applications, "During Operation".
• To reduce the risk of personal injury to the operator and bystanders:
  
  • Always release the trigger switch and remove the battery before assembling, transporting, adjusting, inspecting, cleaning, servicing, maintaining or storing the blower, and any other time it is not in use.
• Although certain unauthorized attachments may fit STIHL blowers, 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.
  • Do not put any object into the openings of the blower.
  • Do not use the blower with any openings blocked.
  • Keep the blower free of dust, lint, hair and anything that might reduce air flow.
• 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 controls and safety devices are working properly.
  • Check the LEDs on the battery for error messages, "Troubleshooting Guide".
  • Check that the battery has not been damaged. Never use or charge a malfunctioning, damaged, cracked, leaking or deformed battery.
  • Never work with a damaged or malfunctioning blower or battery. In case of doubt, have the blower and battery checked by your authorized STIHL servicing dealer.
• If the blower or battery is damaged, not working properly, has been left outdoors, exposed to rain or damp conditions or dropped into water or other liquid, its components may no longer function properly and safety devices may be inoperative. To reduce the risk of personal injury and property damage:
  • Take the blower and battery to your authorized STIHL servicing dealer to be checked before further operation.
• 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 replacement parts be used.

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.
• 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 retaining latch, trigger switch lockout and trigger switch.
  • Ensure that the retaining latch, trigger switch lockout and trigger switch move freely and spring back into place when released. The trigger switch must not engage until the trigger switch lockout is depressed.
  • Never attempt to modify or override the controls or safety devices in any way.
  • If your blower or any part is damaged or does not function properly, take it to your authorized STIHL servicing dealer. Do not use the blower until the problem has been corrected.
• Before inserting the battery:
  • Check the electrical contacts in the battery and socket for corrosion or other foreign matter. Keep clean.
  • If the socket is dirty or corroded, take the unit to your authorized STIHL servicing dealer before use.
  • Never use a malfunctioning, damaged, cracked, leaking or deformed battery.
  • Read and follow the instructions on switching on the blower, "Switching On".
• To help reduce the risk of serious personal injury from unintentional starting:
  • Be sure the trigger switch lockout is in the locked position and the trigger switch is in the off position before inserting the battery.
  • Never carry the blower with your finger on the trigger switch.
  • Release the trigger switch before removing the battery.
  • Remove the battery before assembling, transporting, adjusting, inspecting, cleaning, servicing, maintaining or storing the blower, and any other time it is not in use.
    
  • Never leave the power tool unattended when it is connected to a battery.
  • Never store the battery in the blower.

Holding and Controlling the Blower

• To maintain a firm grip and properly control your blower:
  • Keep the handle clean and dry at all times. Keep it 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 hold the blower firmly with your right hand when you are working.
  • Wrap your fingers tightly around the handle, keeping the handle 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.
  • 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, cuttings and other material, objects or vegetation that 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.
• To reduce the risk of injury from tripping or losing control of the power tool:
  • Adjust the battery backpack harness straps so that the backplate fits snugly and securely against your back. Never carry the Backpack Blower with the carrying straps over one shoulder.

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.
  • Switch off the blower immediately if you are approached.
• To reduce the risk of injury to bystanders and unauthorized users:
  • Never leave the blower unattended when the battery is inserted.
  • Switch off the blower and remove the battery during work breaks and any other time the blower is not in use.
• Operating the blower in certain dry, dusty conditions may cause static electricity to build up in the blower tube, nozzle and housing. This static electricity may discharge suddenly with a spark. To reduce the risk of personal injury following static discharge:
  • Never operate the blower in a location where combustible gases, liquids, vapors, dusts or other combustible materials and substances are present.
• Sparks generated from operation of the blower may be capable of igniting combustible gases, liquids, vapors, dusts or other combustible materials and substances. 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., OSHA) for identifying and avoiding the hazards of combustible gases, liquids, vapors, dusts or other combustible materials and substances.
• 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 EPA, OSHA, CARB and NIOSH 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.
  • 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 NIOSH and rated for worksite-specific conditions. Follow the recommendations of governmental authorities (e.g., OSHA/NIOSH) 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.

Operating Instructions

• In the event of an emergency:
  • Switch off the motor immediately and remove the blower from your back.
• The blower fan between the air intake and output opening rotates whenever the motor 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 17 ft. (5 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.
  • Switch off the blower 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 switch off the blower 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.

Maintenance, Repair and Storage

Warnings and Instructions

• There are no user-authorized repairs for the battery or blower. To reduce the risk of fire, electric shock 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.
• Unintentional starting may result in personal injury or property damage.
  • Remove the battery before inspecting the blower or carrying out any cleaning, maintenance or repair work, before storing, and any other time the blower 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.
• To reduce the risk of short circuit and fire:
  • Keep the battery guides free of foreign matter. Clean as necessary with a dry cloth or soft, dry brush.
• Improper storage can result in unauthorized use, damage to the blower and battery and an increased risk of fire, electric shock and other personal injury or property damage.
  • Remove the battery from the blower before storing.
  • Store the blower indoors in a dry, secure place that cannot be accessed by children or other unauthorized users.

Battery Safety

Warnings and Instructions

• Read and follow the safety precautions on the battery and all warnings and instructions that accompany it.
• Use of unauthorized batteries can damage the power tool and result in fire, explosion and personal injury and property damage.
  • Use only genuine STIHL AR L series batteries with this power tool.
• Use of STIHL AR L series batteries for any purpose other than powering STIHL products could be extremely dangerous.
  • Use STIHL AR L series batteries only to power compatible STIHL products.
• Use of unauthorized chargers can damage the battery and result in fire, explosion and personal injury and property damage.
  • Charge STIHL AR L series backpack batteries only with genuine STIHL AL 300 or AL 500 series chargers.
• The battery contains safety features and devices which, if damaged, may allow the battery to generate heat, rupture, leak, ignite or explode.
  • Never heat the battery above 212°F (100°C).
    
  • Never incinerate or place the battery on or near fires, stoves or other hightemperature locations.
  • Never use or charge a malfunctioning, damaged, cracked, leaking or deformed battery.
  • Never open, disassemble, crush, drop, subject to heavy impact or otherwise damage the battery.
  • Never expose the battery to microwaves or high pressures.
  • Never insert objects into the battery's cooling slots.
• Extreme temperatures may cause the battery to generate heat, rupture, leak, ignite or explode, resulting in severe or fatal personal injury and property damage. Exposure to temperatures outside the recommended temperature range may also reduce battery life and performance.
  • Use and store the battery only within an ambient temperature range of 14°F to 122°F (-10°C to 50°C).
    
  • Never store the battery in direct sunlight or inside a vehicle in hot weather.
• To reduce the risk of personal injury and property damage in the event the battery emits smoke, an unusual smell or feels unusually hot while using, charging or storing:
  • Immediately discontinue using or charging the battery. Contact the authorities in the event of fire or explosion.
• To reduce the risk of a short circuit, which could lead to electric shock, fire and explosion:
  • If a STIHL AR L battery has been exposed to rain during work, remove it from the product and allow it to dry indoors. Make sure it is completely dry before charging or using.
    
  • Never immerse any STIHL battery in water or other liquids.
  • Never bridge the battery terminals with wires or other metallic objects.
  • Keep a battery that is not in use away from metal objects (e.g., paper clips, nails, coins, keys).
  • Never transport or store the battery in a metal container.
  • Store the battery indoors in a dry room.
  • Never store the battery in damp or corrosive environments or in conditions that could lead to corrosion of its metal components.
  • Protect the battery from exposure to corrosive agents such as garden chemicals and de-icing salts.
  • Protect the battery from exposure to conductive liquids such as salt water.
  • Do not attempt to repair, open or disassemble the battery. There are no user-serviceable parts inside.
• Leaking battery fluid is potentially harmful and can cause skin and eye irritation, chemical burns and other serious personal injury.
  • Avoid contact with skin and eyes.
  • Use an inert absorbent such as sand on spilled battery fluid.
  • In the event of accidental contact, immediately rinse the contact area thoroughly with mild soap and water.
  • If fluid gets into your eye(s): do not rub. Rinse water over the open eye(s) for at least 15 minutes and seek medical attention.
• A battery fire can be dangerous. To reduce the risk of severe personal injury and property damage in the event of fire:
  • Evacuate the area. Fire can spread rapidly. Stay clear of any vapors generated and maintain a safe distance.
  • Contact the fire department.
  • Although water can be used to put out a battery fire, use of a multi-purpose dry chemical fire extinguisher is preferable.
  • Consult the fire department regarding proper disposal of a burned battery.

General Warnings and Instructions

General Safety Warnings and Instructions for Battery-Powered Products

This section contains the general safety warnings and instructions for battery-powered products contained in UL 2595 / CSA C22.2 No. 0.23.

• Read all safety warnings and instructions.
• Failure to follow the warnings and instructions may result in electric shock, fire, explosion and/or serious injury or property damage.
• Prevent unintentional starting. Ensure the trigger switch is in the off-position before inserting the battery, picking up or carrying the blower. Carrying the blower with your finger on the trigger switch or inserting the battery with the trigger switch engaged increases the likelihood of unintended starting and possible accidents.
• Remove the battery from the blower before making any adjustments, changing accessories, or storing. Such preventive safety measures reduce the risk of starting the blower accidentally.
• Recharge only with the charger specified by STIHL. A charger that is suitable for one type of battery may create a risk of fire when used with another battery.
• Use the blower only with the specifically designated batteries. Use of any other battery may create a risk of fire or explosion and personal injury or property damage.
• When the battery is not in use, keep it away from other metal objects, like paper clips, coins, keys, nails or other small metal objects that can make a connection from one terminal to another. Do not store it in a metal container. Shorting the battery terminals together may cause burns or a fire or explosion.
• Under abusive conditions, liquid may be ejected from the battery; avoid contact. If contact accidentally occurs, flush with water. If liquid contacts eyes, additionally seek medical help. Liquid ejected from the battery may cause irritation, chemical burns or respiratory illness from inhalation.
• Do not use a battery or blower that is damaged or modified. Damaged or modified batteries may exhibit unpredictable behavior resulting in fire, explosion and risk of injury or property damage.
• Do not expose a battery or the blower to fire or excessive temperature. Exposure to fire or temperatures above 212°F (100°C) may cause fire and explosion.
• Follow all charging instructions and do not charge the battery outside of the ambient temperature range specified. Charging improperly or outside the specified range may damage the battery and increase the risk of fire.
• Have servicing performed by a qualified repair person using only identical replacement parts.
• Do not modify or attempt to repair the blower or the battery pack. Follow the instructions for use and care.

Before Starting Work

Preparing the Blower for Operation

Before starting work:

• Fully charge the battery, "Charging the Battery".
• Adjust the blower tube, "Mounting the Blower Tube".
• Adjust the nozzle, "Mounting and Removing the Nozzle".
• Put on and adjust the blower, "Putting on the Harness".
• Check the controls for proper function and condition, "Checking the Controls".

Assembling the Blower

Mounting the Blower Tube

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

To mount the blower tube:

• Push the elbow clamp (2) onto the elbow (1).
• Push the pleated hose (3) onto the elbow.
• Line up the positioning marks on the pleated hose and elbow.
• Slide the elbow clamp down over the pleated hose.
• Make sure the positioning marks on the elbow clamp and elbow line up.
  The screw lug (5) should be on the underside of the elbow.
• Secure the elbow clamp with the screw (4).

• Push the blower tube clamp (6) onto the blower tube (7).
• Push the blower tube into the pleated hose (3) with the control handle (10) facing up.
• Slide the blower tube clamp over the pleated hose with the screw lug (9) on the underside of the blower tube.
• Secure the blower tube clamp with the screw (8).

• Secure the cable grommet (11) in the cable clamp (12).

Mounting and Removing the Nozzle

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

To mount the nozzle:

• Align the hole on the nozzle (1) with the lug (3) on the blower tube (2) and push them together until the nozzle engages. 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:

• Switching off the blower, "Switching Off".
• Open the clamping lever (1).
• Move the control handle (2) to the most comfortable position.
• Close the clamping lever.

Adjusting the Blower Tube

To adjust the blower tube:

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

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.

Charging the Battery

Setting up the Charger

Read and follow the safety precautions on the battery and charger and all warnings and instructions that accompany those products. To reduce the risk of short circuit, which could lead to electric shock, fire and explosion, make sure the charger and its components are dry and not damaged; operate the charger indoors at an appropriate ambient temperature.

A typical household electric circuit is between 15 and 20 amps. A single STIHL AL 500 charger draws approximately 4.8 amps. A single AL 300 charger draws approximately 4.4 amps. To reduce the risk of fire from overloading an electrical circuit:

• Ensure the electrical system is rated to withstand the expected electrical draw before charging your battery.
• Charge multiple batteries one at a time or on separate circuits, unless you know your circuit can handle the total expected draw from multiple chargers.

Since the charger heats up during the charging process, do not operate the charger on a combustible surface or in a location where combustible gases, liquids, vapors, dusts or other materials and substances are present.
To set up the charger:

• Insert the plug (3) into a properly installed electrical outlet (4) matching the voltage and electrical frequency stated on the charger's rating plate.
  The charger runs a self-test immediately after it is plugged in. The charger LED (1) will glow green for about 1 second, then it will glow red briefly before going out. Once the LED goes out, the self-test is complete and the charger is ready to charge the battery.
• Position the power supply cord (2) so that it will not be stepped on, tripped over, come in contact with sharp objects or moving parts or otherwise be subjected to damage or stress.

Charging

STIHL batteries contain safety features and devices which, if damaged, may allow the battery to generate heat, rupture, leak, ignite or explode. Never charge a malfunctioning, damaged, cracked, leaking or deformed battery or use a charger that has been damaged, "Warnings and Instructions". Never insert a wet AP Adapter. Never use a wet charger, "Warnings and Instructions". Follow all product-specific warnings and instructions accompanying your charger.
To charge the battery:

• Attach the connecting cord to the battery.
• Push the plug of the connecting cord (1) into the socket (2) of the AP Adapter (3) until it stops.
• Push the AP Adapter into the charger (5) until it stops. The LED on the charger (4) glows green when the battery is charging.
  The LEDs on the AR battery glow green and show the state of charge.
  When the LEDs on the battery turn off, the charging process is complete and the charger will shut itself off. The AP Adapter can be removed from the charger.
• Disconnect the power supply cord from the electrical outlet when the charger is not in use for extended periods of time.

A battery is not fully charged when it ships from the factory. STIHL recommends that you fully charge the backpack battery before using it the first time.
Operate the charger indoors in a dry room. For optimum performance, STIHL recommends operating the charger within an ambient temperature range of 41°F to 104°F (5°C to 40°C).
The battery heats up during operation of the power tool. If a hot battery is connected to the charger, it may be necessary for it to cool down before charging starts. The charging process begins only after the battery has cooled down sufficiently.
Charging time depends on a number of factors, including battery condition and the ambient temperature. For a complete list of approximate charging times, see www.stihl.com/charging-times.

LED Diagnostics and Acoustic Signals

STIHL AR Backpack Battery

Battery Status

Six LEDs and an acoustic signal indicate the status of the battery.

1. A short beep
   The acoustic signal works as it should.
2. Three short beeps
   The Bluetooth® signal is switched on or off.
3. Six long beeps
   The battery's charge is low. Recharge the battery.
4. Rapid succession of short beeps
   There is a malfunction in the battery. The signal stops automatically after a few seconds. Do not attempt to charge, use or store the battery. Replace the battery.

These LEDs can glow or flash green, red or blue.

	If one LED glows red continuously: the battery is either too hot or too cold. Allow the battery to warm up or cool down gradually at an ambient temperature of about 50°F to 68°F (10°C to 20°C).
	If the four right side LEDs flash red and a rapid succession of several short beeps is emitted: the battery has a malfunction and must be replaced. Do not attempt to charge, use or store the battery.

If the first LED on the right side glows blue for about three seconds and three short beeps are emitted: the Bluetooth^® interface is turned on.
If the first LED on the right side flashes blue six times and three short beeps are emitted: the Bluetooth^® interface is turned off.

• Be aware that your ability to hear the acoustic signal may be reduced when wearing hearing protection.

Power Tool Status

When the battery is connected to the power tool, the same LEDs on the battery will indicate the status of the power tool.
If three LEDs glow red continuously: the power tool motor is too hot. Allow the motor to cool down.
If three LEDs flash red when you activate the trigger switch: the power tool has an electrical malfunction. Do not operate the power tool. Have it checked by an authorized STIHL servicing dealer before use or storage.
For troubleshooting information, "Troubleshooting Guide".

Charge Status

The LEDs and acoustic signals on the battery also indicate the battery's state of charge.
To determine the battery's state of charge:

• Press the button (1) on the backpack battery.
  A single short beep will be emitted. The LEDs on the battery will glow or flash green for about 5 seconds and indicate the state of charge (see illustration).

For example:
If six green LEDs glow continuously: full charge.
If one green LED is flashing and four long beeps are emitted: less than 20% charge.

Inserting and Removing the Battery

Inserting the Battery

Never use a malfunctioning, damaged, cracked, leaking or deformed battery, "Battery Safety". Use and store the battery only within an ambient temperature range of 14°F to 122°F (- 10°C to 50°C), "Battery Safety".

To reduce the risk of unintended activation, never store the battery in the blower, "Warnings and Instructions".

To insert the battery:

• Position the battery (1) on the backplate (2) so that the guides on the backplate engage the recesses in the battery.
• Open the lever (5) and hold it there.
• Press the battery (1) against the backplate (2) until the plug (3) connects to the socket (4).
• Swing the lever (5) down until it snaps into place.

NOTICE
Make sure the battery is securely attached to the backplate before starting work.
Since a new battery is not fully charged, STIHL recommends that you fully charge the battery before using it the first time, "Charging".

Removing the Battery

To reduce the risk of severe personal injury from unintended activation, always remove the battery before assembling, transporting, adjusting, cleaning, servicing, maintaining or storing the blower, and any other time it is not in use.

Use care when ejecting the battery to prevent it from falling and causing personal injury or property damage.
To remove the battery:

• Release the trigger switch.
• Place the blower on a level surface.
• Open the lever.
• Remove the battery.

NOTICE
Avoid exposing the battery to excessive heat or prolonged periods of direct sunlight. Use or storage outside the recommended ambient temperature range can reduce the performance and/or service life of the battery.

• Make sure you have a secure and firm footing.
• Stand upright.
• Always operate the blower with your right hand firmly on the control handle.

To switch the blower on:

• Depress and hold the trigger switch lockout (1).
• While holding the trigger switch lockout, push the retaining latch (2) forward with your thumb and release it. The LEDs indicate the current power level.
• Squeeze the trigger switch (3) with your index finger. The blower will activate.

You can also unlock the trigger switch by pushing the retaining latch forward and depressing the trigger switch lockout within 3 minutes (as long as the LEDs are glowing). Squeeze the trigger switch with your index finger to activate the blower.
The motor will not switch on unless the trigger switch lockout is depressed, the retaining latch has been pushed forward and the trigger switch has been pressed.
If the trigger switch and the trigger switch lockout are released, the LEDs will remain glowing for approximately 3 minutes. As long as the LEDs are glowing, the blower can again be switched on without pushing the retaining latch forward.
The further the trigger switch is depressed, the stronger the blowing force.

Switching Off

To reduce the risk of personal injury from unintended activation or unauthorized use, switch off the motor and remove the battery before transporting or putting the blower down.

To switch the blower off:

• Release the trigger switch and trigger switch lockout so that the trigger switch springs back to the locked position. In the locked position, activation of the trigger switch is blocked by the trigger switch lockout. Activation of the blower is also electronically blocked by the retaining latch once the LEDs stop flashing (after approximately 5 seconds).

Checking the Controls

Testing the Controls

Before starting work, confirm that the trigger switch lockout (1), retaining latch (2) and the trigger switch (3) are undamaged and functioning properly.

Trigger Switch Lockout (1), Retaining Latch (2) and Trigger Switch (3)

To help reduce the risk of injury from blown objects, always wear proper eye protection while testing the controls. Keep bystanders at least 17 ft. (5 m) away.
To test the controls:

• Remove the battery.
• Attempt to depress the trigger switch. If the trigger switch can be depressed without first depressing the trigger switch lockout, take the blower to an authorized STIHL servicing dealer to be repaired before use.
• Press down on the trigger switch lockout and push the retaining latch forward. Make sure they move freely and spring back into place when released.
• Hold the blower firmly with your right hand on the control handle. Depress and hold the trigger switch lockout, push the retaining latch forward with your thumb and squeeze the trigger switch with your index finger.
  The blower should switch on. If it does not, take the blower to an authorized STIHL servicing dealer to be repaired before use.
• Release the trigger switch.
  The blower should switch off.
  If the blower does not switch off after you release the trigger switch, remove the battery and take the blower to an authorized STIHL servicing dealer to be repaired before use.

During Operation

Selecting the Power Level

The unit can be operated at three different power settings, indicated by LEDs on the control handle. The higher the power level, the stronger the blowing force.
To set the power level:

• Depress and hold the trigger switch lockout (1).
• While holding the trigger switch lockout, push the retaining latch (2) forward with your thumb and release it.
  The LEDs indicate the current power level.
• Push the retaining latch forward to activate the next power level.
  Performing this operation at the highest power level will cause the unit to return to the first power level.

Generally, battery life will be shorter when operating continuously at the higher power levels.

Using the Power Hold Button

You can set and retain the selected blowing force by pressing the power hold button.
To use the power hold feature:

• Switch the blower on.
• Select the power level.
• Squeeze the trigger switch (1) until you reach the desired blowing force for your task.
• While holding the trigger switch, depress the power hold button (2).
  The trigger switch can be released and the blower will continue operating at the selected blowing force.

Press the power hold button again to stop the blower or to resume control of the blowing force with the trigger switch.

Activating the Boost Function

The blower operates at maximum power when the boost function is activated. The boost function can be activated independent of the selected power level.
To activate the boost function:

• Override the trigger switch's (1) end position and hold it there.
  The LEDs flash in sequence, indicating that the boost function is activated.

De-activate the boost function by releasing the trigger switch (1). The previous power level will be restored.
Generally, battery life will be shorter when operating continuously in the boost level.

Using the Blower

Always wear proper clothing and protective apparel, including proper eye protection, "Personal Protective Equipment". Never direct the air flow toward bystanders. Keep bystanders at least 17 ft. (5 m) away from the work area, "Operating Instructions". 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.

After Finishing Work

Preparing for Transportation or Storage

To reduce the risk of personal injury from unintended activation or unauthorized use, switch off the motor and remove the battery before transporting the blower.
To prepare the blower for transportation or storage:

• Switch off the blower, "Switching Off".
• Remove the battery, "Removing the Battery".
• If the blower became wet during operation, allow it to dry separately and completely before charging or storing.

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 loop fastener (1) on the hook (2) 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, "General Safety Warnings and Instructions for
Battery-Powered Products". Improper storage can result in unauthorized use and damage to the blower, "General Safety Warnings and Instructions for
Battery-Powered Products".

To reduce the risk of unintended activation, never store the blower with the battery inserted. Always remove the battery before storing.
When storing the blower:

• Clean the blower, "Cleaning".
• 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, remove the battery before carrying out any cleaning work, "General Warnings and Instructions". Users of this blower should carry out only the cleaning described in this manual.
To clean the blower and battery:

• 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.
• Keep the socket free from foreign matter and clean as necessary with a soft brush or soft, dry cloth.

NOTICE
Never spray the power tool with water. Spraying it with a stream of water could result in damage to the electronics and other systems.

Inspection and Maintenance

Inspection and Maintenance Chart

Always remove the battery before carrying out any inspection, cleaning or maintenance.

The following maintenance intervals are examples and apply for normal operating conditions. Actual use and your experience will determine the frequency of required inspection and maintenance.		Before starting work	After finishing work or daily	Relevant Chapter
Complete Machine	Visual inspection
	Clean			"Cleaning"
Controls	Check function and condition			"Checking the Controls"

Inspecting and Maintaining the Blower

To reduce the risk of personal injury from unintended activation, remove the battery before inspecting the blower or carrying out any maintenance, "General Warnings and Instructions". 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 properly maintain the blower:

• Inspect the intake screen of the blower and replace if damaged.
• Have worn, missing or damaged safety labels replaced by an authorized STIHL servicing dealer.

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

Troubleshooting Guide

Blower

Always remove the battery before carrying out any inspection, cleaning or maintenance.