STIHL ASA 20.0 Cordless Secateur Instruction Manual

: July 27, 2024
: STIHL

STIHL ASA 20.0 Cordless Secateur

Specifications:

Model: ASA 20.0
Operating Range: 2 – 119
Languages: Deutsch, English, Français, Italiano, Nederlands
Printed on chlorine-free bleached paper, recyclable

Product Information

Introduction
This product is a battery-powered pruning shear designed for cutting branches efficiently and safely.

Components:

Blade: Cuts the branches
Display: Shows battery level and total cuts
Battery Compartment: Holds the rechargeable battery
Power Button: Turns the pruning shear on and off
Battery: Powers the pruning shear
Power Cord: Connects the unit to a power outlet

Symbols:
It is essential to understand and follow all symbols mentioned in the user manual for safe operation of the product.

Product Usage Instructions

Safety Precautions:

Read and understand the user manual before use.
Avoid using the pruning shear in wet conditions to prevent electric shock.
Keep children and pets away from the working area.

Operating Instructions:

Charge the battery fully before first-time use.
Insert the charged battery into the battery compartment.
Press the power button to turn on the pruning shear.
Select the branch to be cut and position the blade carefully.
Press the power button again to make the cut.

Maintenance:

Clean the blade after each use to prevent sap buildup.
Store the pruning shear in a dry place when not in use.
Regularly check the battery for any signs of damage.

Frequently Asked Questions (FAQ):

Q: Can I use the pruning shear in rainy conditions?
A: No, it is not safe to operate the pruning shear in wet conditions to avoid electric shock hazards.
Q: How do I know when to recharge the battery?
A: The display on the pruning shear indicates the battery level, prompting you to recharge when needed.
Q: What should I do if the pruning shear does not turn on?
A: Check if the battery is properly inserted and charged. If the issue persists, contact customer support for assistance.

Introduction

Dear Customer,
Thank you for choosing STIHL. We develop and manufacture our quality products to meet our customers’ requirements. The products are designed for reliability even under extreme conditions.
STIHL also stands for premium service quality. Our dealers guarantee competent advice and instruction as well as comprehensive service support.
STIHL expressly commit themselves to a sustainable and responsible handling of natural resources. This user manual is intended to help you use your STIHL product safely and in an environmentally friendly manner over a long service life.
We thank you for your confidence in us and hope you will enjoy working with your STIHL product.
Dr. Nikolas Stihl
IMPORTANT! READ BEFORE USING AND KEEP IN A SAFE PLACE FOR REFERENCE.

Guide to Using this Manual

Applicable Documentation
Local safety regulations apply.

Read, understand and save the following documents in addition to this instruction manual:
Safety information for STIHL batteries and products with built in batteries: www.stihl.com/safety-data-sheets

Warning Notices in Text
DANGER

This notice refers to risks which result in serious or fatal injury.
Serious or fatal injuries can be avoided by taking the precautions mentioned.

WARNING

This notice refers to risks which can result in serious or fatal injury.
Serious or fatal injuries can be avoided by taking the precautions mentioned.

NOTICE

This notice refers to risks which can result in damage to property.
Damage to property can be avoided by taking the precautions mentioned.

Symbols in Text
This symbol refers to a chapter in this instruction manual.

Overview

Pruning shears

Anvil blade
The anvil blade serves as a support for the branch.
Cutting blade
The cutting blade cuts the branch.
Blade protection
The blade protection protects the user against contact with the blades.
Display
The display shows information and errors.
Display
The display shows the state of charge of the battery.
Display
The display shows the configured opening width of the blade.
Number of cuts display
The display shows the total number of cuts.
Bracket for combination wrench
The bracket is used for storing the combination wrench in the battery compartment.
Battery compartment
The battery compartment holds the battery.
Pushbutton
The pushbutton switches the pruning shears on and off.
Control handle
The control handle is used to operate, hold and guide the pruning shears.
trigger
The trigger opens and closes the cutting blade.
Combination wrench
The combination wrench is used to release the fittings of the cover and blades.
Packaging
The packaging is used for storing and transporting the pruning shears. In the set (consisting of pruning shears, battery and charger) the packaging is used for storing and transporting the pruning shears, the battery and the charger.
Battery
The battery supplies power to the pruning shears.
Locking hook
Holds the battery in the battery compartment.
Charger
The charger charges the battery.
LED
The LED indicates the status of the charger.
Connecting cable
The connecting cable connects the charger to the mains plug.
Mains plug
The mains plug connects the connecting cable with a socket.

Rating plate with machine number

Symbols

Meanings of symbols that may be on the pruning shears, battery and charger:
The LED lights up or flashes green. The battery is charging.
The LED flashes red. There is no electrical contact between the battery and the charger or there is a fault in the battery or in the charger.
The information next to the symbol indicates the energy content of the battery according to the cell manufacturer’s specification. The energy content available in operation is lower.
Operate the electric product in a dry place, indoors only.
Do not dispose of the product with your household waste.
****Read and understand the User Manual and keep it in a safe place for reference.

The trigger has various functions.

Safety Precautions

Warning Signs
Pruning shears
Meanings of warning signs on the pruning shears:
Observe safety notices and take the necessary precautions.
Read and understand the User Manual and keep it in a safe place for reference.
****Do not touch the moving cutting blade.

****Remove the battery during work inter‐ruptions, transport, storage, maintenance or repair.
Protect the pruning shears from rain and dampness.

Battery
Meaning of warning symbols on the battery:
Observe safety notices and take the necessary precautions.
Read and understand the User Manual and keep it in a safe place for reference.
Protect the battery against heat and fire.
Do not immerse the battery in liquids.

Charger
Meanings of the warning signs on the charger:
Observe safety notices and take the necessary precautions.
Read and understand the User Manual and keep it in a safe place for reference.
Protect the charger from rain and dampness.

Intended Use
STIHL pruning shears are designed for cutting trees, shrubs, bushes, ornamental plants, grape‐vines and similar woody shrubs with a maximum stem diameter of 25 and at an average cutting frequency of up to 12 cuts per minute in vine‐yards, orchards and for landscaping.
The pruning shears must not be used in the rain.
The pruning shears are not suitable for commercial use.
The STIHL AS battery supplies power to the pruning shears.
The STIHL AL 1 charger recharges the STIHL AS battery.

WARNING

Batteries and chargers not explicitly approved for the pruning shears by STIHL may cause a fire or explosion. Persons may be seriously or fatally injured, and property may be damaged.
Use the pruning shears with a STIHL AS battery.
Recharge the STIHL AS battery with a STIHL AL 1 charger.
Using the pruning shears, battery or charger for purposes for which they were not designed can cause material damage and serious or fatal injuries.
Use the pruning shears, battery and charger as described in this User Manual.

Requirements for users
WARNING

Users without adequate training or instruction cannot recognize or assess the risks involved in using the pruning shears, battery and charger. The user or other persons may sustain serious or fatal injuries.
Read and understand the User Manual and keep it in a safe place for reference.
If the pruning shears, battery or charger are passed on to another person: Always give them the User Manual.
Make sure that the user meets the following conditions:
- The user is rested.
- The user must be in good physical condition and mental health to operate and work with the pruning shears, battery and charger. If the user is able to
  operate the equipment but is physically, hearing, visually or mentally impaired, the user may only work with the equipment under the supervision of or after receiving instruction from a responsible person.
- The user is able to recognize and assess the risks involved in using the pruning shears, battery and charger.
- The user is an adult or is being trained in an occupation under supervision according to national regulations.
- The user has received instruction from a STIHL authorized dealer or other experienced user before working with the pruning shears and using the charger
  for the first time.
- The user is not under the influence of alcohol, medication or drugs.
If you are unsure: Contact a STIHL authorized dealer.

Clothing and equipment
WARNING

Objects can be thrown at high speed during operation. This may result in injury to the user.
Wear close-fitting safety glasses. Suitable protective glasses tested to standard EN 166 or national standards and bearing the corresponding label are available from retailers.
Wear a long-sleeved, close-fitting top and long pants.
Inappropriate clothing can snag on wood, brush or the pruning shears. Users not wearing suitable clothing may be seriously injured.
Wear close-fitting clothing.
Remove scarves and jewelry.
Tie up and secure long hair above your shoulders.
The user can come into contact with the cut‐ting blade during cleaning and maintenance work. This may result in injury to the user.
Wear work gloves made of robust material.
Wearing unsuitable footwear may cause the user to slip. This may result in injury to the user.
Wear sturdy, closed-toed footwear with non-slip soles.

Work Area and Surroundings
Pruning shears
WARNING

Bystanders, children and animals are not aware of the dangers of the pruning shears or flying debris. This may result in serious injury to bystanders, children and animals and damage to property.
Keep bystanders, children and animals away from the working area.
Do not leave the pruning shears unattended.
Make sure that children cannot play with the pruning shears.
The pruning shears are not waterproof. If you work in rain or in a damp environment, an electric shock may occur. This can result in injuries to the user and may damage the pruning shears.

Do not work in the rain or in a damp environment.
Electrical components of the pruning shears can produce sparks. Sparks may cause fires and explosions in highly flammable or explosive environments. Persons may be seriously or fatally injured, and property may be damaged.
Do not work in a highly flammable or explosive environment.

Battery
WARNING

Bystanders, children and animals cannot recognize or assess the dangers of the battery. Bystanders, children and animals may be seriously injured.
Keep bystanders, children and animals away from the work area.
Do not leave the battery unattended.
Make sure that children cannot play with the battery.
The battery is not protected against all ambient conditions. If the battery is exposed to certain ambient conditions, the battery may catch fire, explode or be irreparably damaged. This may result in serious injury to people and damage to property.
Protect battery from heat and fire.
Do not throw the battery into a fire.
Do not charge, use and store the battery outside of the specified temperature limits, 18.5.
Do not immerse the battery in liquids.
Keep battery away from small metal parts.
Do not expose the battery to high pressure.
Do not expose the battery to microwaves.
Protect the battery against chemicals and salts.

Charger
WARNING

Bystanders and children are not aware of and cannot assess the dangers of a charger or electric current. Bystanders, children and animals may be seriously or fatally injured.
Keep bystanders, children and animals away from the work area.
Make sure that children cannot play with the charger.
The charger is not waterproof. If you work in rain or in a damp environment, an electric shock may occur. The user may be injured and the charger may be damaged.
Do not operate it in the rain or in a damp environment.
The charger is not protected against all ambient conditions. If the charger is exposed to certain ambient conditions, it may catch fire or explode. This may result in serious injury to people and damage to property.
Operate the charger in an enclosed, dry room.
Do not operate the charger in a flammable environment or in an explosive environment.
Do not operate the charger on a readily combustible surface.
Do not use and store the charger outside of the specified temperature limits, 18.5.
People may trip over the connecting cable. People may be injured and the charger may be damaged.
Lay the connecting cable flat on the floor.

Safe Condition
Pruning shears
The pruning shears are in a safe condition if the following conditions are met:

The pruning shears are not damaged.
The pruning shears are clean and dry.
The controls function properly and have not been modified.
Original STIHL accessories designed for these pruning shears are installed.
The accessories are correctly installed.

WARNING

If not in safe condition, components may no longer operate correctly, and safety devices may be rendered ineffective. Persons may be seriously injured or killed.
Work only with undamaged pruning shears.
If the pruning shears are dirty or wet: Clean the pruning shears and allow them to dry.
Do not modify the pruning shears.
If the controls do not function properly: Do not use your pruning shears.
Install original STIHL accessories designed for these pruning shears.
Install accessories as described in this User Manual or in the User Manual for the accessories.
Never insert objects into the openings of the pruning shears.
Replace worn or damaged warning signs.
If you are unsure: Consult a STIHL authorized dealer.

Cutting blade
The cutting blade is in a safe condition if the following conditions are met:

The cutting blade is not damaged.
The cutting blade is not deformed.
The cutting blade moves freely.
The cutting blade is lubricated.
The cutting blade is properly installed.
The cutting blade is properly sharpened.
The cutting blade is free from burrs.

WARNING

If it is in an unsafe condition, parts of the cutting blade may come loose and be ejected. People may suffer serious injuries as a result.
Work only with an undamaged cutting blades.
Correctly lubricate the cutting blade.
Properly install the cutting blade.
If the cutting blade is not sharp or if there is a burr on the cutting edge: Replace the cutting blade.
If you are unsure: Consult a STIHL authorized dealer.

Battery
The battery is in a safe condition if the following points are observed:

Battery is undamaged.
The battery is clean and dry.
Battery functions properly and has not been modified.

WARNING

A battery that is not in a safe condition cannot operate safely. Persons may be seriously injured.
Never work with a damaged battery.
Never attempt to charge a damaged or defective battery.
If the battery is dirty: Clean the battery.
If the battery is wet or damp: Allow the battery to dry, 18.6.
Never attempt to modify the battery.
Never insert objects in the battery’s openings.
Never bridge the battery’s contacts with metallic objects (short circuit).
Do not open the battery.
Replace worn or damaged labels.
Fluid may leak from a damaged battery. If that liquid comes into contact with the skin or eyes, the skin or eyes may be irritated.
Avoid contact with the liquid.
If skin contact occurs: Wash affected areas of skin with plenty of water and soap.
In the event of contact with eyes: Rinse eyes with plenty of water for at least 15 minutes and consult a doctor.
A damaged or defective battery may smell unusual, emit smoke or burn. Persons may be seriously or fatally injured, and property may be damaged.
If the battery smells unusual or emits smoke: do not use the battery and keep it away from combustible substances.
If the battery catches fire: Attempt to extinguish the battery with a fire extinguisher or water.

Charger
The charger is in a safe condition if the following points are observed:

Charger is undamaged.
Charger is clean and dry.

WARNING

If components do not comply with safety requirements, they will no longer function properly and safety devices may be rendered inoperative. This can result in serious or fatal injuries.
Do not use a damaged charger.
If the charger is dirty or wet: Clean the charger and allow it to dry.
Never attempt to modify the charger.
Never insert objects in the charger’s openings.
Never bridge the charger’s contacts with metallic objects (short circuit).
Do not open the charger.

Operation

WARNING

Always work within calling distance of others so that you can summon help in an emergency.
Make sure that people are within earshot outside the working area.
In certain situations, the user may no longer be able to concentrate on their work. The user may lose control of the pruning shears and may trip, fall and be seriously injured.
Work calmly and methodically.
If light conditions and visibility are poor: Do not use the pruning shears.
Operate the pruning shears alone.
Do not work above shoulder height.
Watch out for obstacles.
Work standing on the ground and keep your balance. If you have to work at a height: Use a mobile elevating work platform or secure scaffolding.
If you start feeling fatigue: Take a break.
The cutting blade can be damaged if it makes contact with a hard object.
Before starting work, check the work area for hard objects and remove them.
Do not cut into wire.
The moving cutting blade can seriously injure the user.
Keep your free hand at least 40 cm away from the cutting blade.
Never touch the cutting blade.
Before a changing a work location, close the cutting blade.
If the pruning shears are briefly put down: Switch off the pruning shears.
If the behavior of the pruning shears changes during operation or feels unusual, they may no longer be in a safe condition. This may result in serious injury to people and damage to property.
Stop working, remove the battery and contact a STIHL authorized dealer.
Vibrations may occur while using the pruning shears.
Wear gloves.
Take breaks.
If signs of a circulatory disorder occur: Consult a doctor.

DANGER

Working near live electric cables can result in accidental contact with the cutting blade and damage the cables. This may result in serious or fatal injury to the user.
Do not operate in the vicinity of live cables.

Charging
WARNING

A damaged or defective charger may produce an unusual smell or emit smoke during the charging process. This may result in personal injuries and damage to property.
Disconnect the plug from the wall outlet.
The charger can overheat and cause a fire if heat dissipation is inadequate. This can result in serious or fatal injuries and damage to property.
Do not cover the charger.

Connecting to the power supply
Contact with live components may occur for the following reasons:

The connecting cable or the extension cord is damaged.
The mains plug of the connecting cable or extension cord is damaged.
The socket is not properly installed.

DANGER

Contact with live parts may result in electric shock. This may result in serious or fatal injury to the user.
Make sure that the connecting cable, extension cord and their mains plugs are undamaged.
If the connecting cable or the extension cord is damaged:
Do not touch the damaged area.
Disconnect the mains plug from the power supply.
Make sure your hands are dry before touching the connecting cable, extension cord or mains plugs.
Plug the mains plug of the connecting cable or extension cord into a properly installed, shockproof socket with the correct fuse rating.
Install the charger with a ground fault circuit interrupter (30 mA, 30 ms).
A damaged or unsuitable extension cable can result in electric shock. There is a risk of serious or fatal injury.
Use an extension cable with the correct cable cross-section, 18.4.

WARNING

Overvoltage can occur in the charger if the line voltage or frequency are incorrect during charging. The charger may be damaged.
Make sure that the mains voltage and the mains frequency of the power supply match the data on the rating plate of the charger.
If the charger is connected to a power strip, electrical components may be overloaded during the charging process. The components may overheat and cause a fire. Persons may be seriously or fatally injured, and property may be damaged.
Ensure that the technical specifications for the power strip are not exceeded by the information on the rating plate of the charger and of all electrical devices connected to the power strip.
An incorrectly routed connecting cable or extension cord may be damaged, and people may trip over it. People may be injured, and the connecting cable or extension cord may be damaged.
Route and mark the connecting cable and extension cord so that people will not trip over them.
Route the connecting cable and extension cord so that they are not under tension or tangled.
Route the connecting cable and extension cord so that they will not be damaged, kinked or crushed and will not be chafed.
Protect the connecting cable and extension cord from heat, oil and chemicals.
Lay the connecting cable and extension cord on a dry surface.
The extension cable warms up in operation. If that heat cannot escape, it may cause a fire.
If using a cable reel: completely unroll the cable reel.
If wiring and pipes are laid in the wall, they may be damaged if the charger is mounted on the wall. Contact with wiring can result in electric shock. This may result in serious injury to people and damage to property.
Make sure there is no wiring or pipes in the wall at the proposed mounting site.
If the charger is not mounted on the wall as described in this User Manual, the charger or the battery may fall or the charger may over‐heat. This may result in injury to people and damage to property.
Mount the charger on a wall as described in this User Manual.
If the charger is mounted on a wall with the battery inserted, the battery may fall out of the charger. This may result in injury to people and damage to property.
Mount the charger on the wall first before inserting the battery.

Transporting

Pruning shears
WARNING

The pruning shears may tip over or shift during transport. People may be injured or property may be damaged.
Close the cutting blade and switch off the pruning shears.
Remove the battery.
Push the blade protection over the cutting blade so that it snaps into place and fully covers the cutting blade.
Transport the pruning shears in the packaging supplied.
Secure the packaging so that it cannot move.

Battery
WARNING

The battery is not protected against all ambient conditions. The battery may be damaged if it is exposed to certain ambient conditions, and damage to property may occur.
Never transport a damaged battery.
Transport the battery with the packaging.
The battery may tip over or shift during transport. People may be injured or property may be damaged.
Secure the packaging so that it cannot move.

Charger
WARNING

The charger can tip over or shift while being transported. Persons may be injured or property may be damaged.
Disconnect the mains plug from the socket.
Remove the battery.
Secure the charger with lashing straps, belts or a net to prevent it turning over and moving.
The connecting cable must not be used for carrying the charger. The connecting cable and the charger may be damaged.
Wind up the connecting cable and attach it to the charger.

Storing

Pruning shears
WARNING

Children are not aware of and cannot assess the dangers of the pruning shears Children may be seriously injured.
Close the cutting blade and switch off the pruning shears.
Remove the battery.
Push the blade protection over the cutting blade so that it snaps into place and fully covers the cutting blade.
Store the pruning shears out of the reach of children.
Dampness can corrode the electrical contacts on the pruning shears and metal components. This can damage the pruning shears.
Close the cutting blade and switch off the pruning shears.
Remove the battery.
Store the pruning shears in a clean and dry condition.

Battery
WARNING

Children are not aware of and cannot assess the dangers of the battery. Children may be seriously injured.
Store the battery out of the reach of children.
The battery is not protected against all ambient conditions. If the battery is exposed to certain ambient conditions, the battery may be irreparably damaged.
Store the battery in a clean and dry condition.
Store the battery in an enclosed space.
Store the battery separately from the pruning shears.
If the battery is stored in the charger, disconnect the mains plug and store the battery at a state of charge between 40% and 60%.
Do not store the battery outside of the specified temperature limits, 18.5.

Charger
WARNING

Children are not aware of and cannot assess the dangers of a charger. Children can be seriously injured or killed.
Disconnect the plug from the wall outlet.
Store the charger out of reach of children.
The charger is not protected against all ambient conditions. If the charger is exposed to certain ambient conditions, the charger may be damaged.
Disconnect the plug from the wall outlet.
If the charger is hot: Allow the charger to cool down.
Store the charger in a clean, dry place.
Store the charger in an enclosed room.
Do not store the charger outside of the specified temperature limits, 18.5.
The connecting cable should not be used for carrying the charger or hanging up the charger. The connecting cable and the charger may be damaged.
Hold the charger by the housing in a secure grip.
Hang the charger on the wall mounting.

Cleaning, maintenance and repair
WARNING

The pruning shears may start unintentionally if the battery is left in place during cleaning, maintenance or repair work. This may result in serious injury to people and damage to property.
Remove the battery.
Harsh cleaning agents, cleaning with a water jet or pointed objects can damage the pruning shears, the cutting blade, the battery and the charger. If the pruning shears, cutting blade, battery or charger are not cleaned correctly, components may no longer function properly or safety devices may be rendered inoperative. People may suffer serious injuries as a result.
Clean the pruning shears, cutting blade, battery and charger as described in this User Manual.
If the pruning shears, cutting blade, battery and charger are not cleaned correctly, components may no longer function properly or safety devices may be rendered inoperative. Persons may be seriously injured or killed.
Service or repair the cutting blade as described in this User Manual.
Do not attempt to service or repair the pruning shears, battery or charger.
If the pruning shears, battery or the charger require servicing or repairs: Contact a STIHL authorized dealer for assistance.
The user can be cut by the sharp cutting blade while cleaning, maintaining or repairing the cutting blade. This may result in injury to the user.
Wear work gloves made of robust material.

Preparing Pruning Shears for Operation
Preparing the pruning shears for operation
The following steps must be performed before commencing work:

Ensure that the following components are in a safe condition:
- Pruning shears, 4.6.1.
- Cutting blade, 4.6.2.
- Battery, 4.6.3.
- Charger, 4.6.4.
Check the battery, 9.2.
Fully charge the battery, 6.2.
Clean the pruning shears, 14.1.
Clean the cutting blade, 14.2.
Check the controls, 9.1.
If you cannot carry out this work: Do not use the pruning shears and contact a STIHL authorized dealer for assistance.

Charging the Battery, LEDS and Signals

Mounting the charger on a wall
The charger can be mounted on a wall.

Check the following points when mounting the charger on a wall:
- Use suitable mounting materials.
- The charger is level.

The following dimensions are observed:

a = at least 100 mm
b = 54 mm
c = 4.5 mm
d = 9 mm
e = 2.5 mm

Charging the Battery
The charging time depends on various factors, e.g. the battery temperature or the ambient temperature. For optimum performance, note the recommended temperature ranges, 18.6. The actual charging time may vary from the charging time indicated. The charging time is indicated at www.stihl.com/charging- times.
The charging process starts automatically when the mains plug is plugged into a socket and the battery is inserted into the charger. The charger switches off automatically when the battery is fully charged.
The battery and the charger warm up during charging.

Insert the mains plug (5) in a convenient wall outlet (6).
The charger (2) runs a self test. The LED (3) glows green for about 1 second and then red for about 1 second.
Fit the connecting cable (4).
Insert the battery (1) in the guides in the charger (2) and press it home as far as stop. The LED (3) glows or flashes green. The battery (1) is being charged.
When the LED (3) stops glowing: The battery (1) is fully charged and can be taken out of the charger (2).
If the charger (2) is no longer being used: Disconnect the mains plug (5) from the socket (6).

Displaying the state of charge

Insert the battery.
Switch on the pruning shears.
If the left light bar flashes white: Charge battery.

LED on Charger
The LED indicates the operating status of the charger or faults. The LED can glow or flash green or red.
If the LED glows or flashes green, the battery is being charged.

If the LED glows or flashes red: Troubleshoot‐ing, 17.

There is a malfunction in charger or battery.

Beeps
The beeps can indicate the status of the pruning shears and malfunctions.
When the pruning shears are switched on or off, a long beep sounds.
If the cutting blade is opened or permanently closed, three short beeps sound.
If the cutting blade opening width is adjusted, a short beep sounds.

If six short beeps sound: Troubleshooting, 17.1.

There is an error in the pruning shears or battery.

Removing and Fitting the Battery

Inserting the Battery

Push the battery (1) into the battery compartment (2) as far as stop.

The battery (1) engages in position with a click.

Removing the Battery

Depress both locking hooks (1).

The battery (2) is now unlocked and can be removed.

Switching the pruning shears on/off

Switching on the pruning shears

Hold the pruning shears firmly with one hand on the control handle. Wrap your thumb around the handle and operate the trigger with your index finger.
Press and hold the pushbutton (1) until a long beep sounds.

The display switches on, and the pruning shears are ready for operation.

Press the trigger (2) twice in quick succession. You will hear three short beeps. The cutting blade (3) opens fully.

The pruning shears switch off automatically if they are not operated for more than 2 minutes.

Switch the pruning shears on again.

Switching off the pruning shears

Press and hold the trigger (2).
A short beep will sound after 3 seconds.
Press the trigger (2) and keep it pressed until three short beeps sound.
The cutting blade (1) closes and remains closed.
If the cutting blade does not close: Remove the battery and contact a STIHL authorized dealer.
The pruning shears are defective.
Press and hold the pushbutton (3) until a long beep sounds.
The display switches off, and the pruning shears are switched off.

NOTICE

If the trigger is released before three short beeps sound, the cutting blade opening width may be displaced and the cutting blade will not close.
To close the blade, press the trigger (2) and keep it pressed for at least 5 seconds until three short beeps sound.

Testing the Pruning Shears and Battery

Checking the controls
Trigger

Remove the battery.
Depress the trigger.
If the trigger is stiff or does not spring back to its idle position: Do not use the pruning shears and contact a STIHL authorized dealer for assistance.

The trigger is defective.

Switching on the pruning shears

Insert the battery.
Press and hold the push button until a long beep sounds.
The display switches on, and the pruning shears are ready for operation.
Press trigger twice in quick succession. You will hear three short beeps. The cutting blade opens fully.
Depress the trigger.

The cutting blade closes and opens.

If the cutting blade does not close and open: Remove the battery and contact a STIHL authorized dealer.

The pruning shears are defective.

Checking the battery

Insert the battery.
Press and hold the push button until a long beep sounds.

The pruning shears are ready for operation, and the display switches on.

If the display does not switch on: Do not use the pruning shears and battery and contact a STIHL authorized dealer for assistance. There is an error in the pruning shears or battery.

Operating the Pruning Shears
Holding and controlling the pruning shears

Hold the pruning shears firmly with one hand on the control handle. Wrap your thumb around the handle and operate the trigger with your index finger.
Keep your free hand well away from the cutting blade.

Adjusting blade opening width
Depending on the branch thickness, two cutting blade opening widths can be set (19 mm/25 mm). The configured cutting blade opening width is shown in the display with a white illuminated symbol.

Press trigger (1) and hold for 3 seconds until a short beep sounds.

The cutting blade opening width increases or decreases. The white illuminated symbol in the display switches over.

Cutting
The pruning shears are subject to comprehensive quality tests by STIHL before delivery. Therefore a few cuts are already shown in the display upon delivery.

Position the anvil blade (2) against the under‐side of the branch.

WARNING

The moving cutting blade can seriously injure the user.
Keep your free hand at least 40 cm away from the cutting blade.
Never touch the cutting blade.
Pull the trigger (3).

The cutting blade (1) closes and the branch is cut. The cutting blade (1) then opens automatically.
The cutting blade can jam during cutting work. A jammed blade opens automatically.

If the cutting blade is jammed:

Swing the pruning shears upward and pull them out of the cut.
Do not leverage the pruning shears sideways or downward.

NOTICE

If the control handle becomes too hot during operation, the pruning shears may become damaged.
Switch off the pruning shears and let them cool down.
Reduce the number of cuts per minute or diameter of the branches to be cut.

For optimum performance, note the recommended temperature ranges, 18.6.

After Finishing Work

After finishing work

Switch off the pruning shears and remove the battery.

The cutting blade must be closed.

If the pruning shears are wet: Allow the pruning shears to dry.
If the battery is moist or wet: Allow the battery to dry, 18.6.
Clean the pruning shears.
Clean the cutting blade.
Push the blade protection over the cutting blade so that it snaps into place and fully covers the cutting blade.
Clean the battery.

Transporting
Transporting the pruning shears

Switch off the pruning shears and remove the battery.
The cutting blade must be closed.
Push the blade protection over the cutting blade so that it snaps into place and fully covers the cutting blade.

Carrying the pruning shears

Carry the pruning shears with one hand on the control handle.

Transporting the pruning shears in a vehicle

Transport the pruning shears in the packaging supplied.
Secure the packaging so that it cannot move.

Transporting the battery

Switch off the pruning shears and remove the battery.
The cutting blade must be closed.
Check that the battery is in a safe condition.
Pack the battery in packaging in such a way that it cannot move inside the packaging.
Secure the packaging so that it cannot move.

The battery is subject to the Carriage of Dangerous Goods regulations. The battery is classified as UN 3480 (lithiumion batteries) and has been tested pursuant to UN Manual Tests and Criteria Part III, Subsection 38.3.
The transport regulations can be found at www.stihl.com/safety-data- sheets.

Transporting the charger

Disconnect the mains plug from the socket.
Remove the battery.
Wind up the connecting cable and attach it to the charger.
Transporting the charger in a vehicle: Secure the charger with lashing straps, belts or a net to prevent it tipping over and shifting.

Storing

Storing the pruning shears

Switch off the pruning shears and remove the battery.
The cutting blade must be closed.
Push the blade protection over the cutting blade so that it snaps into place and fully covers the cutting blade.
The pruning shears should be stored so that the following conditions are met:
The pruning shears cannot tip over or move.
The pruning shears are out of the reach of children.
The pruning shears are clean and dry.

Storing the battery
STIHL recommends storing the battery in a state of charge between 40% and 60%.

The battery should be stored in such a way that the following conditions are met:
- The battery is out of the reach of children.
- The battery is clean and dry.
- The battery is in an enclosed space.
- The battery is stored separately from the pruning shears.
- If the battery is stored in the charger, disconnect the mains plug and store the battery at a state of charge between 40% and 60%.
- Do not store the battery outside of the specified temperature limits, 18.5.

NOTICE

If the battery is not stored as described in this user manual, the battery may become deeply discharged and irreparably damaged.
Charge a discharged battery before storing it. STIHL recommends storing the battery in a state of charge between 40% and 60%.
Store the battery separately from the pruning shears.

Storing the Charger

Disconnect the mains plug from the power supply.
Wind up the connecting cable and attach it to the charger.
Observe the following points when storing the charger:
- Charger is out of the reach of children.
- The charger is clean and dry.
- Charger is in an enclosed space.
- The charger is not suspended from the connecting cable or the holder (3) for the connecting cable.
- Do not store the charger outside of the specified temperature limits, 18.5.

Cleaning

Cleaning the pruning shears

Switch off the pruning shears and remove the battery.

The cutting blade must be closed.

Clean the pruning shears with a damp cloth or STIHL resin solvent.
Remove foreign objects from the battery compartment and clean the battery compartment with a damp cloth.
Clean the electrical contacts in the battery compartment with a paintbrush or soft brush.

Cleaning the blade
The cutting blade must be open for cleaning.

Switch on the pruning shears.
Press and hold the push button until a long beep sounds.

The display switches off, and the pruning shears are switched off. The cutting blade remains open.

Remove the battery.
Clean cutting blade with a damp cloth and warm soapy water.
Spray both sides of the cutting blade with STIHL resin solvent.

Cleaning the Battery

Clean the battery with a damp cloth.

Cleaning the Charger

Disconnect the mains plug from the power supply.
Clean the charger with a damp cloth.
Clean the charger’s electrical contacts with a paintbrush or a soft brush.

Maintenance

Maintenance Intervals
Maintenance intervals depend on the ambient conditions and the operating conditions.

STIHL recommends the following maintenance intervals:
Every 4000 cuts

Lubricate the cutting blade.

Annually

Have pruning shears checked by a STIHL authorized dealer.

Lubricating the blade
STIHL Multioil Bio or an equivalent biodegradable multifunctional oil lubricates and cools the cutting blade and anvil blade.
The cutting blade must be open for lubrication.

Switch on the pruning shears.
Press and hold the push button until a long beep sounds.
The display switches off, and the pruning shears are switched off. The cutting blade remains open.
Remove the battery.
Remove combination wrench (1) from the bracket (2) in the battery compartment.
Clean the cutting blade.
Place your pruning shears on a level surface so that the display faces up.
Use the combination wrench to loosen the screw (3) and adjusting nut (4).
Apply multifunctional oil in the gap between the cutting blade and anvil blade.
Tighten the adjusting nut (4) so that the cutting blade (5) can no longer be moved sideways in relation to the anvil blade (6) and can easily slide past the anvil blade (6) without play.
Tighten the screw (3).
Insert the battery.
Switch on the pruning shears.

The multifunctional oil is distributed over the cutting blade and anvil blade. The cutting blade and anvil blade are lubricated.

Lubricating the cutting blade with a grease gun
Alternatively, the cutting blade can be lubricated with a grease gun via the grease nipple.

Pull chain to remove plug (1) from the grease gun (3).
Fill the grease gun (3) two-thirds full with STIHL multi-purpose grease (2).
Press the plug (1) firmly onto the grease gun (3).
Position grease gun (3) on grease nipple (4).
Press grease gun (3) and push STIHL multi-purpose grease through the grease nipple (4) with one or two strokes.

Repairing

Repairing pruning shears, battery and charger
The pruning shears, cutting blade, battery and charger cannot be repaired by the user.

If the pruning shears or cutting blades are damaged: Do not use the pruning shears or cutting blades and contact a STIHL authorized dealer for assistance.
If the battery is defective or damaged: Replace the battery.
If the charger is defective or damaged: Replace the charger.
If the connecting cable is defective or damaged: Do not use the charger and have the connecting cable replaced by a STIHL authorized dealer.

Replacing the cutting blade

Switch on the pruning shears.
Press and hold the push button until a long beep sounds.
The display switches off, and the pruning shears are switched off. The cutting blade remains open.
Remove the battery.
Unscrew the screws (1).
Remove the cover (2).
Loosen the screw (3).
Unscrew the adjusting nut (5).
Remove bearing pin (4).
Remove locking segment (6).
Remove and dispose of cutting blade (7).
If grease is on the anvil blade (8): Clean the anvil blade (8).
Insert new cutting blade (7).
Insert locking segment (6).
Insert bearing pin (4) into the bearing position of the new cutting blade.
Screw in the adjusting nut (5) and tighten so that the cutting blade (7) can no longer be moved sideways in relation to the anvil blade (8) and the cutting blade (7) easily slides past the anvil blade (8) without play.
Tighten the screw (3).
Fit the cover (2) in position.
Insert screws (1) and tighten them.

Troubleshooting

Troubleshooting the pruning shears and battery

Error| Display on the pruning shears and beeps| Cause| Remedy
---|---|---|---
Pruning shears do not operate after they are switched on or suddenly stop working.| 1 light bar flashes white.| The state of charge of the battery is too low.|

Charge the battery.

| E 01 6 short beeps| The state of charge of the battery is too low or the battery is
deeply discharged.|

Try to charge the battery.
If this step cannot be carried out: Do not use the battery anymore; contact a STIHL authorized dealer.

---|---|---|---
E 03 6 short beeps| Battery is too cold.|

Remove the battery.
Allow battery to warm up.

E 04 6 short beeps| The battery is too warm.|

Remove the battery.
Wait for the battery to cool down.

E 02 6 short beeps| There is an error in the battery.|

Remove the battery and put it back in.
Switch on the pruning shears.
If the error continues to be shown: Do not use the battery; consult a STIHL authorized dealer.

E 10 – E 13 6 short beeps| There is an error in the pruning shears.|

Remove the battery and put it back in.
Switch on the pruning shears.
If the error continues to be shown: Do not use the pruning shears; consult a STIHL authorized dealer.

E 14 6 short beeps| The cutting blade is jammed.|

Remove the battery.
Remove the jam.
Insert the battery.
Switch on the pruning shears.
If the error continues to be shown: Do not use the pruning shears; consult a STIHL authorized dealer.

| The diameter of the branches to be cut is too great.|

Cut cuttings with a smaller branch
diameter.
If the cutting blade is jammed while cutting: Release cutting blade, 10.3

| The cutting frequency is too high.|

Reduce number of cuts per minute.

| Pruning shears are too hot.|

Allow the pruning shears to cool down.
Reduce the number of cuts per minute or diameter of the branches to be cut.

| No electrical contact between the pruning shears and battery.|

Remove the battery.
Clean the electrical contacts in the battery compartment.
Insert the battery.

| The pruning shears or battery are damp.|

Allow the pruning shears or battery to dry, 18.6.

The cutting performance of the pruning shears deteriorates or is insufficient.| 1 light bar flashes white.| The state of charge of the battery is too low.|

Charge the battery.

| The cutting blade is insufficiently lubricated.|

Lubricate the cutting blade.

| The cutting blade is dull.|

Replace the cutting blade.

| The cutting frequency is too high.|

Reduce number of cuts per minute.

Pruning shears runtime is too short.| | The battery is not fully charged.|

Fully charge the battery.

| | The battery service life has been
exceeded.|

Replace battery.

---|---|---|---

Troubleshooting the Charger

Fault	LED on Charger	Cause	Remedy
Battery not being charged.	One LED glows red.	The battery is too warm or too
cold.

Leave battery inserted in charger. Charging starts automatically as soon as the permitted temperature range is reached.

The LED flashes red.| No electrical contact between charger and battery.|

Remove the battery.
Clean contacts on charger.
Insert battery.

There is a malfunction in the charger.|

Do not use the charger and contact your STIHL dealer for assistance.

There is a fault in the battery.|

Do not use the battery. Consult a STIHL dealer.

The charger does not run a self test.| The LED
glows green for about 1 second and then red for about
1 second.| Electrical contact to charger was briefly interrupted.|

Disconnect the mains plug from the power supply.
Wait for 1 minute.
Insert the mains plug in a wall outlet.

Specifications

STIHL ASA 20.0 Pruning Shears

Approved battery: STIHL AS
Average cutting frequency: up to 12 cuts/minute
Maximum cutting blade opening: 25 mm
Maximum stem diameter: 25 mm (depending on wood)
Weight without battery: 760 g

For runtime, see www.stihl.com/battery-life.

STIHL AS Battery

Battery Technology: Lithium-ion
Voltage: 10.8 V
Capacity in Ah: see rating label
Energy content in Wh: see rating label
Weight in kg: see rating label

STIHL AL 1 Charger

Rated voltage: see rating pate
Frequency: see rating plate
Rated power: see rating plate
Charging current: see rating plate
Maximum energy content of approved STIHL AS battery: 12.5 Ah

For charging times see www.stihl.com/charging-times.

Extension Cords
If an extension cord is used, the cross sectional area of its conductors must meet the following minimum requirements – depending on the line voltage and length of the extension cord:

If rated voltage on the rating label is 220V to 240V:

Cord length up to 20 m: AWG 15 / 1.5 mm²
Cord length 20 m up to 50 m: AWG 13 / 2.5 mm²

If rated voltage on the rating label is 100V to 127V:

Cord length up to 10 m: AWG 14 / 2.0 mm²
Cord length 10 m up to 30 m: AWG 12 / 3.5 mm²

Temperature limits
WARNING

The battery is not protected against all ambient conditions. If the battery is exposed to certain environmental conditions, it may catch fire or explode. This may result in serious injury to people and damage to property.
Do not charge the battery below -20°C or above 50°C.
Do not use the pruning shears, battery or charger below -20°C or above 50°C.
Do not store the pruning shears, battery or charger below -20°C or above 70°C.

Recommended temperature ranges
For optimum performance of the pruning shears, battery and charger, note the following temperature ranges:

Charging: 5°C to 40°C
Use: -10°C to 40°C
Storage: -20°C to +50°C

If the battery is charged, used or stored outside the recommended temperature ranges, performance may be restricted.
If the battery is wet or moist, allow the battery to dry for at least 48 h between 15°C and 50°C and with less than 70% humidity. Higher humidity may extend the drying time.

Sound and vibration values
The K-value for the sound pressure level is 2 dB(A). The K-value for the vibration level is 2 m/s².
STIHL recommends wearing hearing protection.

Sound pressure level LpA measured according to EN 62841-1: < 70 dB(A).
Vibration level ahv measured according to EN 62841-1:
Control handle: < 2.5 m/s².

The sound and vibration levels indicated were measured according to a standardized test method and can be used as a basis for comparing electric power tools. The actual sound and vibration levels may vary from the values indicated, depending on the type of application. The sound and vibration levels indicated can be used for an initial estimate of the sound and vibration stress. The actual sound and vibration stress has to be estimated. The times can be taken into account in the estimate when the electric power tool is switched off and also when it is switched on but running without any load.
For information on compliance with the Physical Agents (Vibration) Directive 2002/44/EC, see www.stihl.com/vib.

REACH
REACH is an EC regulation and stands for the Registration, Evaluation, Authorisation and Restriction of Chemical substances.
For information on compliance with the REACH regulation see www.stihl.com/reach.

Spare Parts and Accessories
Spare parts and accessories
These symbols indicate original STIHL spare parts and original STIHL accessories.
STIHL recommends the use of original STIHL spare parts and accessories.
Despite ongoing market observation, STIHL is unable to judge the reliability, safety and suitability of other manufacturers’ spare parts and accessories; accordingly, STIHL cannot warrant for the use of those parts.
Original STIHL spare parts and original STIHL accessories are available from STIHL dealers.

Disposal
Disposing of pruning shears, battery and charger
Contact local authorities or a STIHL authorized dealer for information on disposal.
Improper disposal can be harmful to health and pollute the environment.

Take STIHL products including packaging to a suitable collection point for recycling in accordance with local regulations.
Do not dispose with domestic waste.

EC Declaration of Conformity

STIHL ASA 20.0 Pruning Shears
ANDREAS STIHL AG & Co. KG
Badstraße 115
D-71336 Waiblingen
Germany
declares under its sole responsibility that

Category: Battery pruning shears
Manufacturer’s brand: STIHL
Model: ASA 20.0
Serial identification number: VA05

conforms to the relevant provisions of Directives 2011/65/EU, 2006/42/EC, 2014/30/EU and 2000/14/EC and has been developed and manufactured in compliance with the following standards in the versions valid on the date of production: EN 55014‑1, EN 55014‑2, EN 62841-1, EN ISO 12100.
The technical documents are stored at ANDREAS STIHL AG & Co. KG Produktzulas‐sung.
The year of manufacture, country of manufacture and serial number are indicated on the pruning shears.
Waiblingen, 10.01.2024
ANDREAS STIHL AG & Co. KG
pp
Robert Olma, Vice President, Regulatory Affairs & Global Governmental Relations

UKCA Declaration of Conformity

STIHL ASA 20.0 Pruning Shears
ANDREAS STIHL AG & Co. KG
Badstraße 115
D-71336 Waiblingen
Germany
declares under its sole responsibility that

Category: Battery pruning shears
Manufacturer’s brand: STIHL
Model: ASA 20.0
Serial identification number: VA05

conforms to the relevant provisions of UK regulations The Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic Equipment Regulations 2012, Supply of Machinery (Safety) Regulations 2008, Electromagnetic Compatibility Regulations 2016 and Noise Emission in the Environment by Equipment for use Outdoors Regulations 2001 and has been manufactured in compliance with the following standards in the versions valid on the date of production: EN 55014‑1, EN 55014‑2, EN 62841-1, EN ISO 12100.
The technical documentation is stored at ANDREAS STIHL AG & Co. KG.
The year of manufacture, country of manufacture and serial number are indicated on the pruning shears.
Waiblingen, 10.01.2024
ANDREAS STIHL AG & Co. KG
pp
Robert Olma, Vice President, Regulatory Affairs & Global Governmental Relations

Addresses
www.stihl.com

General Power Tool Safety Warnings

Introduction
This chapter reproduces the preformulated, general safety precautions specified in the IEC 62841 standard for hand-held motor-operated electric tools.
STIHL is obliged to publish these texts.
The safety precautions and warnings on avoiding an electric shock given under “Electrical Safety” do not apply to STIHL cordless products.

WARNING

Read all safety warnings, instructions, illustrations and specifications provided with this power tool. Failure to follow all instructions listed below may result in electric shock, fire and/or serious injury. Save all warnings and instructions for future reference.

The term “electric power tool” in the safety warnings refers to mains-operated (corded) power tools or battery-operated (cordless) power tools.

Work area safety

Keep work area clean and well lit. Cluttered or dark areas invite accidents.
Do not operate power tools in explosive atmospheres, such as in the presence of flammable liquids, gases or dust. Power tools create sparks which may ignite the dust or fumes.
Keep children and bystanders away while operating a power tool. Distractions can cause you to lose control.

Electrical safety

Power tool plugs must match the outlet. Never modify the plug in any way. Do not use any adapter plugs with earthed (grounded) power tools.Unmodified plugs and matching outlets will reduce risk of electric shock.
Avoid body contact with earthed or grounded surfaces, such as pipes, radiators, ranges and refrigerators. There is an increased risk of electric shock if your body is earthed or grounded.
Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock.
Do not abuse the cord. Never use the cord for carrying, pulling or unplugging the power tool. Keep cord away from heat, oil, sharp edges or moving parts. Damaged or entangled cords increase the risk of electric shock.
When operating a power tool outdoors, use an extension cord suitable for outdoor use. Use of a cord suitable for outdoor use reduces the risk of electric shock.
If operating a power tool in a damp location is unavoidable, use a residual current device (RCD) protected supply. Use of an RCD reduces the risk of electric shock.

Personal safety

Stay alert, watch what you are doing and use common sense when operating a power tool. Do not use a power tool while you are tired or under the influence of drugs, alcohol or medication. A moment of inattention while operating power tools may result in serious personal injury.
Use personal protective equipment. Always wear eye protection. Protective equipment such as a dust mask, non-skid safety shoes, hard hat or hearing protection used for appropriate conditions will reduce personal injuries.
Prevent unintentional starting. Ensure the switch is in the off-position before connecting to power source and/or battery pack, picking up or carrying the tool. Carrying power tools with your finger on the switch or energising power tools that have the switch on invites accidents.
Remove any adjusting key or wrench before turning the power tool on. A wrench or a key left attached to a rotating part of the power tool may result in personal injury.
Do not overreach. Keep proper footing and balance at all times. This enables better con‐trol of the power tool in unexpected situations.
Dress properly. Do not wear loose clothing or jewellery. Keep your hair and clothing away from moving parts. Loose clothes, jewellery or long hair can be caught in moving parts.
If devices are provided for the connection of dust extraction and collection facillities, ensure these are connected and properly used. Use of dust collection can reduce dust-related hazards.
Do not let familiarity gained from frequent use of tools allow you to become complacent and ignore tool safety principles. A careless action can cause severe injury within a fraction of a second.

Power tool use and care

Do not force the power tool. Use the correct power tool for your application. The correct power tool will do the job better and safer at the rate for which it was designed.
Do not use the power tool if the switch does not turn it on and off. Any power tool that cannot be controlled with the switch is dangerous and must be repaired.
Disconnect the plug from the power source and/or remove the battery pack, if detachable, from the power tool before making any adjustments, changing accessories, or storing power tools. Such preventive safety measures reduce the risk of starting the power tool accidentally.
Store idle power tools out of the reach of children and do not allow persons unfamiliar with the power tool or these instructions to operate the power tool. Power tools are dangerous in the hands of untrained users.
Maintain power tools and accessories. Check for misalignment or binding of moving parts, breakage of parts and any other condition that may affect the power tool’s operation. If damaged, have the power tool repaired before use. Many accidents are caused by poorly maintained power tools.
Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control.
Use the power tool, accessories and tool bits etc. in accordance with these instructions, taking into account the working conditions and the work to be performed. Use of the power tool for operations different from those intended could result in a hazardous situation.
Keep handles and grasping surfaces dry, clean and free from oil and grease. Slippery handles and grasping surfaces do not allow for safe handling and control of the tool in unexpected situations.

Battery tool use and care

Recharge only with the charger specified by the manufacturer. A charger that is suitable for one type of battery pack may create a risk of fire when used with another battery pack.
Use power tools only with specifically designated battery packs. Use of any other battery packs may create a risk of injury and fire.
When battery pack is not in use, keep it away from other metal objects, like paper clips, coins, keys, nails, screws or other small metal objects, that can make a connection from one terminal to another. Shorting the battery terminals together may cause burns or a fire.
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 or burns.
Do not use a battery pack or tool that is damaged or modified. Damaged or modified batteries may exhibit unpredictable behaviour resulting in fire, explosion or risk of injury.
Do not expose a battery pack or tool to fire or excessive temperature. Exposure to fire or temperature above 130 °C may cause explosion.
Follow all charging instructions and do not charge the battery pack or tool outside the temperature range specified in the instructions. Charging improperly or at temperatures outside the specified range may damage the battery and increase the risk of fire.

Service

Have your power tool serviced by a qualified repair person using only identical replacement parts. This will ensure that the safety of the power tool is maintained.
Never service damaged battery packs. Service of battery packs should only be performed by the manufacturer or authorized service providers.

www.stihl.com