STIHL ASA 20 - Electric pruner

ASA 20 - Electric pruner STIHL - Free user manual and instructions

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Notice STIHL ASA 20 - page 26
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What does error code E 12 mean on a STIHL ASA 20 electric pruner and how can it be resolved?
Frequently Asked Questions - 09/03/2026
Response Notice-Facile

The error code E 12 displayed on the STIHL ASA 20 electric pruner generally indicates a problem related to the battery or its power supply. Here are the steps to identify and resolve this issue:

1. Check the battery

  • Make sure the battery is fully charged. A weak battery can trigger this error code.
  • Recharge the battery completely before reusing the device.

2. Check the connections

  • Ensure that the battery is properly inserted into the pruner.
  • Examine the electrical contacts for dirt, corrosion, or debris, and clean them if necessary.

3. Operating conditions

  • Avoid using the device in extreme temperature conditions, as this can affect battery performance and cause errors.

4. Restart the device

  • Remove the battery from the pruner and wait a few minutes.
  • Then reinsert the battery to perform a complete restart.

If the error code E 12 persists after these checks, it is advisable to have your pruner checked by a professional or an authorized STIHL service center, as this may indicate a hardware defect requiring technical intervention.

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What does error code E13 mean on a STIHL ASA 20 electric pruner and how can it be resolved?
Frequently Asked Questions - 06/03/2026
Response Notice-Facile

The error code E13 on a STIHL ASA 20 electric pruner generally indicates a technical issue related to the safety or operation of the device. This code may appear in case of:

  • Motor overload or blade blockage.
  • Battery issue, such as insufficient charge or poor contact.
  • Safety defect preventing normal starting or operation.

To resolve this issue, here are the steps to follow:

  1. Check the battery: Ensure it is properly charged and well inserted into the device.
  2. Inspect the blades: Clean them to remove any debris or obstruction that may block their movement.
  3. Examine the safety mechanisms: Ensure that all safety mechanisms are properly engaged and functional.
  4. Restart the device: Turn it off and then back on to see if the code disappears.

If the E13 code persists after these checks, it is advisable to contact a specialized technical service for a more in-depth diagnosis and possible repair.

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How to remove the battery from the STIHL ASA 20 electric pruner?
Frequently Asked Questions - 27/02/2026
Response Notice-Facile

To remove the battery from the STIHL ASA 20 electric pruner, follow these simple steps:

  1. Ensure that the device is turned off and disconnected from any power source to ensure your safety.
  2. Locate the battery release button which is usually found on the handle of the pruner.
  3. Press firmly on this button while holding the pruner steadily.
  4. Gently pull the battery out of its compartment while continuing to press the button. Avoid using excessive force to prevent damaging the device or the battery.
  5. Store the battery in a dry place, away from extreme temperatures and moisture.

If you encounter difficulties when removing it, check that the button is fully pressed and that nothing is obstructing the battery compartment.

Respond (be the first)
What should I do if my STIHL ASA 20 electric pruner won't open?
Frequently Asked Questions - 18/02/2026
Response Notice-Facile

On the STIHL ASA 20 electric pruner, the blade opens automatically after each cut and also if it gets stuck during cutting. If your pruner no longer opens the blade, this indicates a defect in the pruner that requires intervention. Here’s how to proceed.

Step 1: Check a complete closing/opening cycle
Properly install the recommended AS 2 battery (10.8 V), then press the trigger. The blade should first close, then open completely. You should hear a sound signal during activation and the cycle. If the blade does not open after closing, it is an internal electronic or mechanical problem.

Step 2: Test the battery and contacts
Remove the battery and check that the electrical contacts of the pruner and the battery are not dirty or damaged. If you see residue, gently clean the metal contacts. Reinsert the battery firmly until it clicks into place and restart the cycle test. Check the OLED screen: it should display the charge level and mode information. If an error code appears (E02, ET0-E13, E4...) accompanied by 6 sound signals, this indicates an internal malfunction.

Step 3: Check that the blade is not stuck
If the blade got stuck during a previous cut, the pruner may be in protection mode. Gently tilt the pruner upwards to free the blade from the cut, without levering on the side or downwards. Once the blade is free, test a closing/opening cycle again without any branches in the blades.

Step 4: Consult a specialized STIHL dealer
If after these checks the blade still does not perform a normal closing and opening cycle, the pruner is defective. Remove the battery and immediately contact a specialized STIHL dealer for diagnosis and repair. The ASA 20 has a complex electronic system (brushless EC motor, OLED display, proportional cutting control) that requires the expertise of a certified technician.

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What does error code F12 mean on the STIHL ASA 20 electric pruner and how can it be resolved?
Frequently Asked Questions - 07/01/2026
Response Notice-Facile

The error code F12 on the STIHL ASA 20 electric pruner generally indicates a problem related to the battery or the electrical connection of the device. Here’s how to identify and resolve this issue:

1. Checking the battery

  • Make sure the battery is properly charged. A weak battery can trigger this error code.
  • Fully recharge the battery before trying to use the pruner again.

2. Checking the connections

  • Ensure that the battery is properly inserted into the pruner.
  • Inspect the electrical contacts to ensure they are clean and free of dirt or debris.

3. Restarting the device

  • Turn off the pruner, wait a few seconds, then turn it back on to see if the error code disappears.

4. Inspecting cables and components

  • Examine the cables and connectors for any damage, cuts, or wear.

If after these checks the error code F12 persists, it is possible that a more complex technical issue is at play. In this case, it is recommended to contact an authorized STIHL service center for professional assistance.

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Download the instructions for your Electric pruner in PDF format for free! Find your manual ASA 20 - STIHL and take your electronic device back in hand. On this page are published all the documents necessary for the use of your device. ASA 20 by STIHL.

USER MANUAL ASA 20 STIHL

Robert Olma, Vice President, Regulatory Affairs & Global Governmental Relations

Robert Olma, Vice President, Regulatory Affairs & Global Governmental Relations

23 Anschriften

1 Introduction. 25
2 Guide to Using this Manual. 26
3 Overview. 26
4 Safety Precautions. 27
5 Preparing Pruning Shears for Operation...34
6 Charging the Battery, LEDs and Signals..34
7 Removing and Fitting the Battery. 35
8 Switching the pruning shears on/off... 36
9 Testing the Pruning Shears and Battery... 36
10 Operating the Pruning Shears. 37
11 After Finishing Work. 38
12 Transporting. 38
13 Storing. 38
14 Cleaning. 39
15 Maintenance. 39
16 Repairing. 40
17 Troubleshooting. 41
18 Specifications. 43
19 Spare Parts and Accessories. 44
20 Disposal. 44
21 EC Declaration of Conformity. 44
22 UKCA Declaration of Conformity. 45
23 45
24 General Power Tool SafetyWarnings.....45

1 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.

N_a

Dr. Nikolas Stihl

IMPORTANT! READ BEFORE USING AND KEEP IN A SAFE PLACE FOR REFERENCE.

2 Guide to Using this Manual

2.1 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

2.2 Warning Notices in Text

STIHL ASA 20 - Warning Notices in Text - 1

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.

STIHL ASA 20 - DANGER - 1

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.

2.3 Symbols in Text

This symbol refers to a chapter in this instruction manual.

3 Overview

3.1 Pruning shears

STIHL ASA 20 - Pruning shears - 1

1 Anvil blade

The anvil blade serves as a support for the branch.

2 Cutting blade

The cutting blade cuts the branch.

3 Blade protection

The blade protection protects the user against contact with the blades.

4 Display

The display shows information and errors.

5 Display

The display shows the state of charge of the battery.

6 Display

The display shows the configured opening width of the blade.

7 Number of cuts display

The display shows the total number of cuts.

8 Bracket for combination wrench

The bracket is used for storing the combination wrench in the battery compartment.

9 Battery compartment

The battery compartment holds the battery.

10 Pushbutton

The pushbutton switches the pruning shears on and off.

11 Control handle

The control handle is used to operate, hold and guide the pruning shears.

12 trigger

The trigger opens and closes the cutting blade.

13 Combination wrench

The combination wrench is used to release the fittings of the cover and blades.

14 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.

15 Battery

The battery supplies power to the pruning shears.

16 Locking hook

Holds the battery in the battery compartment.

17 Charger

The charger charges the battery.

18 LED

The LED indicates the status of the charger.

19 Connecting cable

The connecting cable connects the charger to the mains plug.

20 Mains plug

The mains plug connects the connecting cable with a socket.

Rating plate with machine number

3.2 Symbols

Meanings of symbols that may be on the pruning shears, battery and charger:

STIHL ASA 20 - Symbols - 1

The LED lights up or flashes green.
The battery is charging.

STIHL ASA 20 - Symbols - 2

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.

STIHL ASA 20 - Symbols - 3

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.

STIHL ASA 20 - Symbols - 4

Operate the electric product in a dry place, indoors only.

STIHL ASA 20 - Symbols - 5

Do not dispose of the product with your household waste.

STIHL ASA 20 - Symbols - 6

Read and understand the User Manual and keep it in a safe place for reference.

STIHL ASA 20 - Symbols - 7

The trigger has various functions.

STIHL ASA 20 - Symbols - 8

4 Safety Precautions

4.1 Warning Signs

4.1.1 Pruning shears

Meanings of warning signs on the pruning shears:

STIHL ASA 20 - Pruning shears - 1

Observe safety notices and take the necessary precautions.

STIHL ASA 20 - Pruning shears - 2

Read and understand the User Manual and keep it in a safe place for reference.

STIHL ASA 20 - Pruning shears - 3

Do not touch the moving cutting blade.

STIHL ASA 20 - Pruning shears - 4

Remove the battery during work interruptions, transport, storage, maintenance or repair.

STIHL ASA 20 - Pruning shears - 5

Protect the pruning shears from rain and dampness.

4.1.2 Battery

Meaning of warning symbols on the battery:

STIHL ASA 20 - Battery - 1

Observe safety notices and take the necessary precautions.

STIHL ASA 20 - Battery - 2

Read and understand the User Manual and keep it in a safe place for reference.

STIHL ASA 20 - Battery - 3

Protect the battery against heat and fire.

STIHL ASA 20 - Battery - 4

Do not immerse the battery in liquids.

4.1.3 Charger

Meanings of the warning signs on the charger:

STIHL ASA 20 - Charger - 1

Observe safety notices and take the necessary precautions.

STIHL ASA 20 - Charger - 2

Read and understand the User Manual and keep it in a safe place for reference.

STIHL ASA 20 - Charger - 3

Protect the charger from rain and dampness.

4.2 Intended Use

STIHL pruning shears are designed for cutting trees, shrubs, bushes, ornamental plants, grapevines 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 vineyards, 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.

t explicitly approvedSTIHLL may cause amay be seriously orty may be damaged.

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.

4.3 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.

STIHL ASA 20 - WARNING - 1

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.

4.4 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 cutting 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.

4.5 Work Area and Surroundings

4.5.1 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.

STIHL ASA 20 - WARNING - 1

  • 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.

4.5.2 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.

STIHL ASA 20 - WARNING - 1

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.

STIHL ASA 20 - WARNING - 2

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.

4.5.3 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.

STIHL ASA 20 - WARNING - 1

  • 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.

4.6 Safe Condition

4.6.1 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.

4.6.2 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.

4.6.3 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.

4.6.4 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.

4.7 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.

STIHL ASA 20 - WARNING - 1

  • 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.

4.8 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.

4.9 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.

STIHL ASA 20 - DANGER - 1

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 overheat. 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.

4.10 Transporting

4.10.1 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.

STIHL ASA 20 - WARNING - 1

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.

4.10.2 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.

4.10.3 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.

4.11 Storing

4.11.1 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.

STIHL ASA 20 - WARNING - 1

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.

STIHL ASA 20 - WARNING - 2

Remove the battery.

  • Store the pruning shears in a clean and dry condition.

4.11.2 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.

4.11.3 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.

Wear work gloves made of robust material.

  • 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.

4.12 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.

STIHL ASA 20 - WARNING - 1

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.

5 Preparing Pruning Shears for Operation

5.1 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.

6 Charging the Battery, LEDs and Signals

6.1 Mounting the charger on a wall

The charger can be mounted on a wall.

STIHL ASA 20 - Mounting the charger on a wall - 1

  • 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 = 54mm
  • c = 4.5mm
  • d = 9mm
  • e = 2.5mm

6.2 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.

STIHL ASA 20 - Charging the Battery - 1

  • 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).

6.3 Displaying the state of charge

STIHL ASA 20 - Displaying the state of charge - 1

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

6.4 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: Troubleshooting, 17.

There is a malfunction in charger or battery.

6.5 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.

7 Removing and Fitting the Battery

7.1 Inserting the Battery

STIHL ASA 20 - Inserting the Battery - 1

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

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

7.2 Removing the Battery

STIHL ASA 20 - Removing the Battery - 1

Depress both locking hooks (1). The battery (2) is now unlocked and can be removed.

8 Switching the pruning shears on/off

8.1 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.

STIHL ASA 20 - Switching on the pruning shears - 1

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.

8.2 Switching off the pruning shears

STIHL ASA 20 - Switching off the pruning shears - 1

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.

9 Testing the Pruning Shears and Battery

9.1 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 pushbutton 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.

9.2 Checking the battery

Insert the battery.
Press and hold the pushbutton 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.

10 Operating the Pruning Shears

10.1 Holding and controlling the pruning shears

STIHL ASA 20 - Holding and controlling the pruning shears - 1

  • 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.

10.2 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.

STIHL ASA 20 - Adjusting blade opening width - 1

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.

10.3 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.

STIHL ASA 20 - Cutting - 1

Position the anvil blade (2) against the underside 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.

STIHL ASA 20 - WARNING - 1

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.

11 After Finishing Work

11.1 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.

12 Transporting

12.1 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.

12.2 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 (lithium ion 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.

12.3 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.

13 Storing

13.1 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.

13.2 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.

13.3 Storing the Charger

  • Disconnect the mains plug from the power supply.

STIHL ASA 20 - Storing the Charger - 1

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.

14 Cleaning

14.1 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.

14.2 Cleaning the blade

The cutting blade must be open for cleaning.

Switch on the pruning shears.
Press and hold the pushbutton 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.

14.3 Cleaning the Battery

Clean the battery with a damp cloth.

14.4 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.

15 Maintenance

15.1 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.

15.2 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 pushbutton until a long beep sounds.
The display switches off, and the pruning shears are switched off. The cutting blade remains open.
Remove the battery.

STIHL ASA 20 - Lubricating the blade - 1

  • 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.

STIHL ASA 20 - Lubricating the blade - 2

  • Use the combination wrench to loosen the screw (3) and adjusting nut (4).

STIHL ASA 20 - Lubricating the blade - 3

Apply multifunctional oil in the gap between the cutting blade and anvil blade.

STIHL ASA 20 - Lubricating the blade - 4

  • 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.

15.3 Lubricating the cutting blade with a grease gun

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

STIHL ASA 20 - Lubricating the cutting blade with a grease gun - 1

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 multipurpose grease through the grease nipple (4) with one or two strokes.

16 Repairing

16.1 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.

16.2 Replacing the cutting blade

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

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

Remove the battery.

STIHL ASA 20 - Replacing the cutting blade - 1

Unscrew the screws (1).
Remove the cover (2).

STIHL ASA 20 - Replacing the cutting blade - 2

Loosen the screw (3).
Unscrew the adjusting nut (5).
Remove bearing pin (4).

STIHL ASA 20 - Replacing the cutting blade - 3

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).

STIHL ASA 20 - Replacing the cutting blade - 4

  • 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).

STIHL ASA 20 - Replacing the cutting blade - 5

Fit the cover (2) in position.
Insert screws (1) and tighten them.

17 Troubleshooting

17.1 Troubleshooting the pruning shears and battery

ErrorDisplay on the pruning shears and beepsCauseRemedy
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 016 short beepsThe 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 036 short beepsBattery is too cold.Remove the battery. Allow battery to warm up.
E 046 short beepsThe battery is too warm.Remove the battery. Wait for the battery to cool down.
E 026 short beepsThere 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 136 short beepsThere 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 146 short beepsThe 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 exce- ded.Replace battery.

17.2 Troubleshooting the Charger

FaultLED on Char-gerCauseRemedy
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 rea-ched.
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.

18 Specifications

18.1 STIHL ASA 20.0 Pruning Shears

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

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

18.2 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

18.3 STIH 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/chargingtimes.

18.4 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 20m : AWG 15 / 1.5 mm²
Cord length 20m up to 50m : AWG 13/2.5 mm²

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

  • Cord length up to 10m : AWG 14 / 2.0 mm²
  • Cord length 10m up to 30m : AWG 12 / 3.5mm^2

18.5 Temperature limits

STIHL ASA 20 - Temperature limits - 1

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^ or above 50^ .

  • Do not use the pruning shears, battery or charger below -20^ or above 50^ .
  • Do not store the pruning shears, battery or charger below -20^ or above 70^ .

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

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

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 48h between 15^ and 50^ and with less than 70% humidity. Higher humidity may extend the drying time.

18.7 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 a
hv measured according to EN 62841-1:

Control handle: < 2.5m / s^2

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.

18.8 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.

19 Spare Parts and Accessories

19.1 Spare parts and accessories STIHL 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.

20 Disposal

20.1 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.

21 EC Declaration of Conformity

21.1 STIHL ASA 20.0 Pruning Shears

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 Produktzulassung.

The year of manufacture, country of manufacture and serial number are indicated on the pruning shears.

Robert Olma, Vice President, Regulatory Affairs & Global Governmental Relations

22 UKCA Declaration of Conformity

22.1 STIHL ASA 20.0 Pruning Shears

UK CA

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 Machi

nery (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.

Robert Olma, Vice President, Regulatory Affairs & Global Governmental Relations

23 Addresses

www.stihl.com

24 General Power Tool SafetyWarnings

24.1 Introduction

This chapter reproduces the pre-formulated, 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.

24.2 Work area safety

a) Keep work area clean and well lit. Cluttered or dark areas invite accidents.
b) 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.
c) Keep children and bystanders away while operating a power tool. Distractions can cause you to lose control.

24.3 Electrical safety

a) 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.
b) 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.
c) Do not expose power tools to rain or wet conditions. Water entering a power tool will increase the risk of electric shock.
d) 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.
e) 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.
f) 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.

24.4 Personal safety

a) 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.
b) 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.

c) 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.
d) 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.
e) Do not overreach. Keep proper footing and balance at all times. This enables better control of the power tool in unexpected situations.
f) 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.
g) If devices are provided for the connection of dust extraction and collection facilities, ensure these are connected and properly used. Use of dust collection can reduce dust-related hazards.
h) 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.

24.5 Power tool use and care

a) 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.
b) 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.
c) 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.
d) 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.

e) 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.
f) Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to bind and are easier to control.
g) 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.
h) 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.

24.6 Battery tool use and care

a) 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.
b) Use power tools only with specifically designated battery packs. Use of any other battery packs may create a risk of injury and fire.
c) 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.
d) 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.
e) 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.
f) Do not expose a battery pack or tool to fire or excessive temperature. Exposure to fire or

temperature above 130^ may cause explosion.
g) 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.

24.7 Service

a) 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.
b) Never service damaged battery packs. Service of battery packs should only be performed by the manufacturer or authorized service providers.

Table des matieres

Chere cliente, cher client,

Robert Olma, Vice President, Regulatory Affairs & Global Governmental Relations

Robert Olma, Vice President, Regulatory Affairs & Global Governmental Relations

Robert Olma, Vice President, Regulatory Affairs & Global Governmental Relations

23 Indirizzi

De schakelhendel is defect.

Robert Olma, Vice President, Regulatory Affairs & Global Governmental Relations

Robert Olma, Vice President, Regulatory Affairs & Global Governmental Relations

23 Adressen

www.stihl.com

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Product information

Brand : STIHL

Model : ASA 20

Category : Electric pruner