STIHL FSA 57 Manuel utilisateur

STIHL FSA 57

Instruction Manual

Notice d’emploi

G Instruction Manual

1 - 36

F Notice d’emploi

37 - 75

Original Instruction ManualPrinted on chlorine-free paper

Printing inks contain vegetable oils, paper can be recycled.

0458-806-8221-B. VA1.J19.

0000008977_001_GB

0458-806-8221-B

English

1

with electronic systems.

Contents

1 Introduction

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2

2 Guide to Using this Manual

. . . . . . . . . . . . . . . . . . . . . . . . . .

2

2.1 Signal Words

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

2

2.2 Symbols in Text

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3

3 Main Parts

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

3

3.1 Trimmer, Battery and Charger

. . . . . . . . . . . . . . . . . . . . . . .

3

3.2 Mowing Head, Cutting Attachments and Deflector

. . . .

4

4 Safety Symbols on the Products

. . . . . . . . . . . . . . . . . . . . .

4

4.1 Trimmer and Charger

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

4

5 IMPORTANT SAFETY INSTRUCTIONS

. . . . . . . . . . . . .

5

5.1 Introduction

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

5

5.2 Intended Use

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6

5.3 Operator

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

7

5.4 Personal Protective Equipment

. . . . . . . . . . . . . . . . . . . . . .

7

5.5 Trimmer

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

8

5.6 Using the Trimmer

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

9

6 Battery Safety

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

14

6.1 Warnings and Instructions

. . . . . . . . . . . . . . . . . . . . . . . . . .

14

7 Charger Safety

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

15

7.1 Warnings and Instructions

. . . . . . . . . . . . . . . . . . . . . . . . . .

15

8 Maintenance, Repair and Storage

. . . . . . . . . . . . . . . . . .

17

8.1 Warnings and Instructions

. . . . . . . . . . . . . . . . . . . . . . . . . .

17

9 Before Starting Work

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

18

9.1 Preparing the Trimmer for Operation

. . . . . . . . . . . . . . .

18

10 Charging the Battery

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

18

10.1 Setting up the Charger

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

18

10.2 Charging

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

18

10.3 Mounting the Charger on a Wall

. . . . . . . . . . . . . . . . . . . .

19

11 LED Diagnostics

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

20

11.1 LEDs on the Battery

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

20

11.2 LED on the Charger

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

20

12 Assembling the Trimmer

. . . . . . . . . . . . . . . . . . . . . . . . . . .

21

12.1 Mounting the Deflector

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

21

12.2 Mounting and Removing a Mowing Head

. . . . . . . . . . .

21

12.3 Mounting the Loop Handle

. . . . . . . . . . . . . . . . . . . . . . . . .

22

13 Adjusting the Trimmer

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

22

13.1 Adjusting the Length of the Drive Tube

. . . . . . . . . . . . .

22

13.2 Adjusting the Loop Handle

. . . . . . . . . . . . . . . . . . . . . . . . .

23

14 Inserting and Removing the Battery

. . . . . . . . . . . . . . . .

23

14.1 Inserting the Battery

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

23

14.2 Removing the Battery

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

24

15 Switching the Trimmer On and Off

. . . . . . . . . . . . . . . . . .

24

15.1 Switching On

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

24

15.2 Switching Off

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

25

16 Checking the Trimmer

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

25

16.1 Testing the Controls

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

25

17 During Operation

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

26

17.1 Using the Trimmer

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

26

17.2 Adjusting the Nylon Line

. . . . . . . . . . . . . . . . . . . . . . . . . . .

27

18 After Finishing Work

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

27

18.1 Preparing for Transportation or Storage

. . . . . . . . . . . .

27

19 Transporting the Trimmer and Battery

. . . . . . . . . . . . . .

27

19.1 Trimmer

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

27

19.2 Battery

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

28

20 Storing the Trimmer, Battery and Charger

. . . . . . . . . .

28

20.1 Trimmer

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

28

20.2 Battery

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

28

20.3 Charger

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

29

21 Cleaning

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

29

21.1 Cleaning the Trimmer, Battery and Charger

. . . . . . . .

29

22 Inspection and Maintenance

. . . . . . . . . . . . . . . . . . . . . . .

29

22.1 Inspecting and Maintaining the Trimmer

. . . . . . . . . . . .

29

23 Troubleshooting Guide

. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

31

23.1 Trimmer and Battery

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

31

0458-806-8221-B

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English

1 Introduction

Thank you for your purchase. The information contained in

this manual will help you receive maximum performance and

satisfaction from your trimmer and, if followed, reduce the

risk of injury from its use.

SAVE THIS MANUAL!

Have your authorized STIHL servicing dealer show you how

to operate your power tool.

Do not lend or rent the trimmer without this instruction

manual. Allow only persons who fully understand the

information in this manual to operate the trimmer.

For further information, or if you do not understand any of

the instructions in this manual, please go to

www.stihlusa.com (for Canada: www.stihl.ca) or contact

your authorized STIHL servicing dealer.

2.1 Signal Words

This manual contains safety information that requires your

special attention. Such information is introduced with the

following symbols and signal words:

DANGER

Indicates a hazardous situation that, if not avoided, will

result in death or serious injury.

23.2 Charger

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

32

24 Specifications

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

33

24.1 STIHL FSA 57

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

33

24.2 STIHL AK Series Battery

. . . . . . . . . . . . . . . . . . . . . . . . . . .

33

24.3 STIHL AL 101

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

33

24.4 Symbols on the Trimmer, Battery and Charger

. . . . .

33

24.5 Engineering Improvements

. . . . . . . . . . . . . . . . . . . . . . . . .

34

24.6 EMC Compliance Statement for Power Tool and

Charger

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

34

25 Approved Deflector and Cutting Attachment

Combinations

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

35

25.1 STIHL FSA 57

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

35

26 Replacement Parts and Equipment

. . . . . . . . . . . . . . . . .

35

26.1 Genuine STIHL Replacement Parts

. . . . . . . . . . . . . . . .

35

27 Disposal

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

35

27.1 Disposal of the Trimmer and Charger

. . . . . . . . . . . . . .

35

27.2 Battery Recycling

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

35

1 Introduction

Because a trimmer is a high-speed cutting tool,

special safety precautions must be observed to

reduce the risk of personal injury.

Read this instruction manual thoroughly before

use and periodically thereafter. Follow all safety

precautions. Careless or improper use of the

trimmer can cause serious or fatal injury.

2 Guide to Using this Manual

0458-806-8221-B

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English

3 Main Parts

WARNING

Indicates a hazardous situation that, if not avoided, could

result in death or serious injury.

NOTICE

Indicates a risk of property damage, including damage to the

machine or its individual components.

2.2 Symbols in Text

The following symbol is included to assist you with the use

of the manual:

3.1 Trimmer, Battery and Charger

1 Battery Compartment

Holds the battery.

2 Locking Lever

Secures the battery in the battery compartment.

3 Control Handle

Handle for the operator's rear hand.

4 Trigger Switch

Activates the cutting attachment when depressed.

5 Trigger Switch Lockout

Must be depressed while the retaining latch is unlocked

to allow activation of the trigger switch.

Refers to a designated chapter or sub-chapter in this

instruction manual.

3 Main Parts

1

2

#

3

4

8

10

9

11

7

6

5

12

15

13

18

14

16

17

0000-GXX-4806-A0

0458-806-8221-B

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English

4 Safety Symbols on the Products

6 Retaining Latch

Locks/unlocks the trigger switch.

7 Drive Tube Release Button

Unlocks the drive tube to allow length adjustment.

8Star Knob

Tightens the loop handle in position.

9 Loop Handle

Handle for the operator's front hand.

10 Drive Tube

Trimmer shaft.

11 Bump Guard

Limits the cutting range of the mowing line and helps

regulate cutting depth during edging.

12 Charger LED

Indicates the operating status of the charger.

13 Plug

Connects the power supply cord to an electrical outlet.

14 Power Supply Cord

Supplies the charger with electricity when plugged into

an electrical outlet.

15 Charger

Charges the battery.

16 Battery

Supplies electrical power to the motor.

17 Battery LEDs

Indicate the battery's state of charge and display error

messages regarding potential malfunctions in the battery

or power tool.

18 Push Button

Activates the battery's LEDs.

# Rating Plate

Contains electrical information and the product's serial

number.

3.2 Mowing Head, Cutting Attachments and

Deflector

1 Line Limiting Blade

Metal blade on the deflector that trims the nylon mowing

line to the proper length.

2 Mowing Head

Mowing head for mounting nylon trimmer line.

3 Fan Wheel

Designed to cool the electric motor.

4 Deflector

Designed to reduce the risk of injury from thrown objects

and contact with the cutting attachment.

The FSA 57 is sold with an AutoCut mowing head and

appropriate deflector. Other items are available as

accessories.

4.1 Trimmer and Charger

The following safety symbols are found on the trimmer

and/or charger:

4 Safety Symbols on the Products

3

1

4

2

0000-GXX-9901-A0

0458-806-8221-B

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English

5 IMPORTANT SAFETY INSTRUCTIONS

5.1 Introduction

This section contains the prescribed general safety

warnings and instructions for handheld, motor-operated

electric trimmers. Additional important warnings and

instructions are provided in subsequent sections of this

manual.

WARNING

￭ When using electric trimmers, basic safety precautions

should always be followed to reduce the risk of fire,

electric shock and personal injury, including the following:

READ ALL INSTRUCTIONS BEFORE USING THE

TRIMMER!

1)Avoid Dangerous Environment – Don’t use trimmers in

damp or wet locations.

2)Don’t Use In Rain.

3)Keep Children Away – All bystanders should be kept at a

distance from work area.

To reduce the risk of injury, follow the specified

safety precautions.

Read and follow all safety precautions in the

instruction manual. Improper use can lead to

serious or fatal personal injury or property

damage.

To reduce the risk of eye injury, always wear

proper eye protection, @ 5.4.

To reduce the risk of personal injury from thrown

objects, inspect the work area and remove

stones, glass, pieces of metal and other objects

that could be thrown by the cutting attachment.

@ 5.6.4.

To reduce the risk of personal injury

from thrown objects, keep bystanders

at least 50 ft. (15 m) away, @ 5.6.4.

To reduce the risk of injury or property damage

from unintended activation, remove the battery

any time the trimmer is not in use, @ 5.5.

To reduce the risk of electric shock, do not

expose the trimmer to rain, water or excessive

moisture. Store it indoors. If it is exposed to rain

or very damp conditions, take it to your

authorized STIHL servicing dealer before further

operation, @ 5.5.

To reduce the risk of personal injury or property

damage from fire or electric shock, keep the

charger dry. Protect it from rain, water, liquids

and damp conditions. For indoor use only, @ 7.

15m (50ft)

To reduce the risk of personal injury or property

damage from fire, explosion or burns, including

chemical burns, do not disassemble, crush,

drop, damage or heat the battery above 212 °F

(100 °C). Never expose it to fire or incinerate,

@ 6.

To reduce the risk of personal injury or property

damage from a short circuit, fire or explosion,

keep the battery dry. Protect it from rain, water,

liquids and damp conditions. Never immerse the

battery in water or other liquids, @ 6.

To reduce the risk of personal injury or property

damage from fire, use and store the battery only

within an ambient temperature range of 14 °F to

122 °F (- 10 °C to 50 °C), @ 6.

5 IMPORTANT SAFETY

INSTRUCTIONS

0458-806-8221-B

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English

5 IMPORTANT SAFETY INSTRUCTIONS

4)Dress Properly – Do not wear loose clothing or jewelry.

They can be caught in moving parts. Heavy-duty work

gloves (e.g. made of leather or other wear resistant

material) and substantial footwear are recommended

when working outdoors. Wear protective hair covering to

contain long hair.

5)Use Safety Glasses – Always use face or dust mask if

operation is dusty.

6)Use Right Tool – Do not use tool for any job except that for

which it is intended.

7)Avoid Unintentional Starting – Do not carry trimmer with

finger on the trigger switch.

8)Don’t Force Trimmer – It will do the job better and with less

likelihood of a risk of injury at the rate for which it was

designed.

9)Don’t Overreach – Keep proper footing and balance at all

times.

10)Stay Alert – Watch what you are doing. Use common

sense. Do not operate trimmer when you are tired.

11)Store Trimmer Indoors – When not in use, trimmer should

be stored indoors in a dry, locked place out of reach of

children with the battery removed.

12)Maintain Trimmer With Care – Keep cutting attachment

clean for best performance and to reduce the risk of injury.

Follow instructions for changing accessories. Keep

handles dry, clean, and free from oil and grease.

13)Check Damaged Parts – Before further use of the

trimmer, a guard or other part that is damaged should be

carefully checked to determine that it will operate properly

and perform its intended function. Check for alignment of

moving parts, binding of moving parts, breakage of parts,

mounting, and any other condition that may affect its

operation. A guard or other part that is damaged should be

properly repaired or replaced by an authorized service

center unless indicated elsewhere in this manual.

14)Keep guards in place and in working order.

15)Keep hands and feet away from cutting area and cutting

attachment.

SAVE THESE INSTRUCTIONS

5.2 Intended Use

WARNING

￭ This trimmer is designed for light-duty cutting of grass and

similar material in yards and gardens around the home.

Use of the trimmer for operations different than intended

could result in serious injury or death.

– Use the trimmer only for light-duty trimming tasks

around the home and garden.

– Cut grass and similar material only. Do not use the

trimmer for cutting brush, shrubs, bushes or other

types of heavy vegetation.

￭ Improper use could result in personal injury or property

damage, including damage to the trimmer.

– Use the trimmer, battery and charger only as

described in this manual.

– Never attempt to modify or override the trimmer's

controls or safety devices in any way.

– Never use a trimmer that has been modified or

altered from its original design.

￭ The STIHL AK series battery is designed for use only with

compatible STIHL power tools.

￭ The STIHL AL 101, AL 300 or AL 500 series charger is

designed for charging STIHL AK and AP series batteries

only.

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5 IMPORTANT SAFETY INSTRUCTIONS

5.3 Operator

WARNING

￭ Working with the trimmer can be strenuous. The operator

must be in good physical condition and mental health. To

reduce the risk of personal injury from fatigue and loss of

control:

– Check with your doctor before using the trimmer if

you have any health condition that may be

aggravated by strenuous work.

– Do not operate the trimmer while under the influence

of any substance (drug, alcohol or medication, etc.)

that might impair vision, balance, dexterity or

judgment.

– Be alert. Do not operate the trimmer when you are

tired. Take a break if you become tired.

– Do not permit minors to use the trimmer.

￭ According to STIHL's current knowledge, the electric

motor of this trimmer should not interfere with a

pacemaker.

– However, persons with a pacemaker or other

implanted medical device should consult their

physician and device manufacturer before operating

this trimmer.

5.4 Personal Protective Equipment

WARNING

￭ Even a properly installed and adjusted deflector may not

protect the operator from all foreign objects thrown back

by the cutting attachment. Thrown objects may also

ricochet and strike the operator. To reduce the risk of

personal injury:

– Always wear proper clothing and protective apparel,

including proper eye protection.

￭ Loss of control and severe cut injuries may result if hair,

clothing or apparel make contact with the moving cutting

attachment or otherwise become entangled in the

components of the trimmer. To reduce the risk of severe

personal injury:

– Avoid loose-fitting jackets, scarves, neckties, flared

or cuffed pants, jewelry and any other apparel that

could be caught on branches, brush or the moving

cutting attachment.

– Secure hair above shoulder level before starting

work.

￭ To reduce the risk of eye injury:

– If there is a risk of facial injury, STIHL recommends

that you also wear a face shield or face screen over

your goggles or protective glasses.

– Wear an approved protective helmet, when there is

a risk of head injury.

￭ Good footing is very important. To help maintain a secure

footing and reduce the risk of injury while working:

￭ To improve your grip and help protect your hands:

– Wear sturdy and snug-fitting clothing that

also allows complete freedom of

movement.

– Wear overalls or long pants made of

heavy material to help protect your legs.

Do not wear shorts.

– Always wear goggles or close-fitting

protective glasses with adequate side

protection that are impact-rated and

marked as complying with CSA Z94.

– Wear substantial footwear with non-slip

soles. Do not wear sandals, flip-flops,

open-toed or similar footwear.

– Always wear heavy-duty non-slip work

gloves made of leather or another wear-

resistant material when handling the

trimmer.

0458-806-8221-B

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English

5 IMPORTANT SAFETY INSTRUCTIONS

5.5 Trimmer

WARNING

￭ To reduce the risk of electric shock:

￭ If the moving cutting attachment contacts you, it will result

in serious laceration injuries. To reduce the risk of such

injuries:

– Keep hands, feet and other parts of your body away

from the cutting attachment.

– Never touch the moving cutting attachment with your

hand or any other part of your body.

– Never operate the trimmer with a damaged or

missing deflector.

￭ This battery-powered trimmer is intended only for light-

duty garden and landscape maintenance around the

home. Use for other purposes may increase the risk of

personal injury and property damage.

– Cut grass and similar material only. Do not use the

trimmer for cutting brush, shrubs, bushes or other

types of heavy vegetation.

– Read and follow the operating instructions in this

manual for approved applications, @ 17.

￭ To reduce the risk of personal injury to the operator and

bystanders:

￭ Although certain unauthorized attachments may fit your

STIHL trimmers, their use may be extremely dangerous.

Only attachments supplied by STIHL or expressly

approved by STIHL for use with this specific model are

recommended.

– Use only attachments supplied or expressly

approved by STIHL.

– Never attempt to mount a metal blade for use on the

trimmer.

– Never modify this trimmer in any way.

– Never attempt to modify or override the trimmer's

controls or safety devices in any way.

– Never use a trimmer that has been modified or

altered from its original design.

￭ If the trimmer is dropped or subjected to similar heavy

impacts:

– Check that it is undamaged, in good condition and

functioning properly before continuing work.

– Check that the controls and safety devices are

working properly.

– Check the LEDs for error messages, @ 11.1.2.

– Check that the battery has not been damaged.

Never use or charge a malfunctioning, damaged,

cracked, leaking or deformed battery.

– Never work with a damaged or malfunctioning

trimmer. In case of doubt, have the trimmer checked

by your authorized STIHL servicing dealer.

￭ If the trimmer or battery is damaged, not working properly,

has been left outdoors, exposed to rain or damp

conditions or dropped into water or other liquid, its

– Do not expose the trimmer to rain, water

or excessive moisture.

– Store the trimmer indoors.

– Always remove the battery before

assembling, transporting, adjusting,

inspecting, cleaning, servicing,

maintaining or storing the trimmer and

any other time it is not in use.

0458-806-8221-B

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5 IMPORTANT SAFETY INSTRUCTIONS

components may no longer function properly and safety

devices may be inoperative. To reduce the risk of personal

injury and property damage:

– Take the trimmer and battery to your authorized

STIHL servicing dealer to be checked before further

operation.

￭ Genuine STIHL replacement parts are specifically

designed to match your trimmer and meet safety and

performance requirements. Use of parts that are not

authorized or approved by STIHL may cause serious or

fatal injury or property damage.

– STIHL recommends that only identical STIHL

replacement parts be used.

5.6 Using the Trimmer

5.6.1 Before Operation

WARNING

￭ Misuse or unauthorized use may result in personal injury

and property damage.

– Use the trimmer only as described in this instruction

manual.

￭ For proper assembly of the cutting attachment, deflector

and handle:

– Read and follow the instructions on mounting the

cutting attachment, deflector and handle, @ 12.

￭ The cutting attachment and deflector must be an

approved combination. Before replacing:

– Read and follow the instructions on selecting the

proper cutting attachment and deflector, @ 25.1.

￭ The cutting attachment must be properly installed and

tightened before starting work. Failure to use the proper

parts to mount the cutting attachment may cause the head

to fly off and seriously injure the operator or bystanders.

– Never mount a cutting attachment to the trimmer

without the proper installation of all required parts

(e.g., nuts, screws, thrust washer, thrust plate, etc.).

– Before starting work, inspect for loose parts (nuts,

screws, etc.) and for cracked or damaged heads.

– Replace damaged heads before using the power

tool.

￭ Using only the approved combination of cutting

attachment and deflector is extremely important to

maximize cutting performance and reduce the risk of

personal injury from thrown objects or contact with the

cutting attachment:

– To reduce the risk of serious injury, never use wire

or metal-reinforced line or other material in place of

the recommended nylon cutting line. Pieces of wire

could break off and be thrown at high speed toward

the operator or bystanders.

￭ Using a trimmer that is modified, damaged, improperly

adjusted or not completely and securely assembled can

lead to a malfunction and increase the risk of serious

personal injury or death.

– Never operate a trimmer that is modified, damaged,

improperly maintained or not completely and

securely assembled.

– Always check your trimmer for proper condition and

operation, particularly the retaining latch, trigger

switch lockout, trigger switch, deflector and cutting

attachment.

– Ensure that the retaining latch, trigger switch lockout

and trigger switch move freely and always spring

back to the stop position when released. The trigger

switch must not engage until the retaining latch is

unlocked and the trigger switch lockout is

depressed.

– Never attempt to modify or override the controls or

safety devices.

– The cutting attachment must engage only when the

battery is inserted, the retaining latch is unlocked

and the trigger switch lockout and trigger switch are

depressed.

– If your trimmer or any part is damaged or does not

function properly, take it to your authorized STIHL

servicing dealer. Do not use the trimmer until the

problem has been corrected.

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5 IMPORTANT SAFETY INSTRUCTIONS

￭ Before inserting the battery:

– Check the electrical contacts in the battery

compartment for corrosion or other foreign matter

and keep clean.

– Never insert or use a malfunctioning, damaged,

cracked, leaking or deformed battery.

– Read and follow the instructions on switching on the

trimmer, @ 15.1.

￭ To help reduce the risk of serious personal injury or death

from unintentional starting:

– Be sure the retaining latch is in the locked position

before inserting the battery.

– Never carry the trimmer with your finger on the

trigger switch.

– Release the trigger switch before removing the

battery.

– Never leave the trimmer unattended when the

battery is inserted.

– Never store the battery in the trimmer.

￭ Before switching on your trimmer, take the following steps

to reduce the risk of personal injury from thrown objects,

loss of control or inadvertent contact with the cutting

attachment:

– Be sure that the cutting attachment is clear of you

and all other obstructions and objects, including the

ground.

– Read and follow the instructions on switching on the

trimmer, @ 15.1.

5.6.2 Holding and Controlling the Trimmer

WARNING

￭ To maintain a firm grip and properly control your trimmer:

– Keep the handles clean and dry at all times. Keep

them free of moisture, pitch, oil, grease and resin.

￭ To reduce the risk of serious or fatal injuries to the

operator or bystanders from loss of control:

– Always hold the trimmer firmly with both hands when

you are working.

– Wrap your fingers tightly around the handles,

keeping the handles cradled between your thumb

and forefinger (see illustration above).

– Position the trimmer in such a way that all parts of

your body are clear of the cutting attachment

whenever the battery is inserted.

￭ Working with the cutting attachment above ground level or

perpendicular to the ground increases the risk of severe

injury from thrown objects. It also exposes more of the

cutting attachment and makes the trimmer more difficult to

control, increasing the risk of injury. To reduce the risk of

serious or fatal injury from loss of control or thrown objects

when trimming:

– Keep the cutting attachment at ground level, parallel

to the ground.

￭ To reduce the risk of serious or fatal cut injuries to the

operator or bystanders from contact with the cutting

attachment:

– Remove the battery before assembling,

transporting, adjusting, inspecting,

cleaning, servicing, maintaining or

storing the trimmer and any other time it

is not in use.

0000-GXX-1494-A0

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5 IMPORTANT SAFETY INSTRUCTIONS

– Do not touch the cutting attachment while the battery

is inserted.

￭ Operating the trimmer with one hand may lead to loss of

control and is extremely dangerous. To reduce the risk of

serious or fatal injury to the operator or bystanders from

loss of control:

￭ To reduce the risk of serious or fatal cut injuries to the

operator or bystanders from loss of control, keep proper

footing and balance at all times:

– Make sure you have good balance and a secure

footing at all times.

– Take special care in overgrown or wet terrain and

always watch for hidden obstacles such as tree

stumps, roots, rocks, holes and ditches to avoid

stumbling or falling.

– Be extremely cautious when working on slopes or

uneven ground.

– For better footing, always clear away fallen

branches, scrub, cuttings and other material, objects

or vegetation that can increase the danger of

slipping, tripping or falling.

– Never operate the trimmer above waist height.

– Do not overreach.

￭ The trimmer should be balanced for proper control and

less fatigue during operation.

– Adjust the length of the drive tube and position of the

loop handle to achieve and maintain a comfortable

and effective working position, @ 13.

5.6.3 Working Conditions

WARNING

￭ Operate your trimmer only under good visibility during

favorable daylight conditions.

– Postpone the work if the weather is windy, foggy,

rainy or inclement.

￭ Your trimmer is a one-person machine.

– Bystanders, especially children, and animals should

not be allowed in the area where it is in use.

– Switch off the trimmer immediately if you are

approached.

￭ To reduce the risk of injury to bystanders and

unauthorized users:

– Never leave the trimmer unattended when the

battery is inserted.

– Switch off the trimmer and remove the battery during

work breaks and any other time the trimmer is not in

use.

￭ Sparks generated from operation of the trimmer may be

capable of igniting combustible gases, liquids, vapors,

dusts or other combustible materials and substances. To

reduce the risk of fire and explosion:

– Never operate the trimmer in a location where

combustible gases, liquids, vapors, dusts or other

combustible materials and substances are present.

– Read and follow recommendations issued by

government authorities (e.g., CCOHS) for identifying

and avoiding the hazards of combustible gases,

liquids, vapors, dusts or other combustible materials

and substances.

– Keep hands, feet and other body parts

away from the cutting attachment.

– Never touch a moving cutting attachment

with your hand or any other part of your

body

– Never attempt to operate the trimmer

with one hand.

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5 IMPORTANT SAFETY INSTRUCTIONS

￭ Use of this trimmer can generate dust and other

substances containing chemicals known to cause

respiratory problems, cancer, birth defects and other

reproductive harm.

– Consult governmental agencies such as ECCC,

CCOHS and PHAC and other authoritative sources

on hazardous materials if you are unfamiliar with the

risks associated with the particular substances you

are cutting or with which you are working.

￭ Inhalation of certain dusts, especially organic dusts such

as mold or pollen, can cause susceptible persons to have

an allergic or asthmatic reaction. Substantial or repeated

inhalation of dust or other airborne contaminants,

especially those with a smaller particle size, may cause

respiratory or other illnesses.

– Control dust at the source where possible.

– To the extent possible, operate the trimmer so that

the wind or operating process directs any dust, mist

or other particulate matter raised by the trimmer

away from the operator.

– When respirable dust or other particulate matter

cannot be kept at or near background levels, always

wear a respirator that is approved by PHAC and

rated for worksite-specific conditions. Follow the

recommendations of governmental authorities (e.g.,

CCOHS/PHAC/MSHA) and occupational and trade

associations.

￭ If the vegetation being cut or the surrounding ground is

coated with a chemical substance, such as a pesticide or

herbicide:

– Read and follow the instructions and warnings that

accompanied the substance coating the vegetation

or surrounding ground.

5.6.4 Operating Instructions

WARNING

￭ In the event of an emergency:

– Switch off the motor immediately and remove the

battery.

￭ The cutting attachment continues to rotate for a short

period after the trigger switch is fully released. This is

known as the "flywheel effect." To reduce the risk of

serious personal injury from contact with the cutting

attachment:

￭ The rotating cutting attachment may fling foreign objects

directly or by ricochet a great distance. Thrown objects,

including broken cutting attachments, may cause serious

or fatal injury to the operator or bystanders. To reduce the

risk of severe personal injury:

– To reduce the risk of damage to property, also

maintain this distance from such objects as vehicles

and windows.

– Maintaining a minimum distance of 50 ft. (15 m)

cannot eliminate the potential risk of personal injury

and property damage from thrown objects.

– Wait for the cutting attachment to stop

before walking with the trimmer or

putting it down.

– Inspect the work area. Remove stones,

glass, pieces of metal or other objects

that could be thrown by the cutting

attachment, damage the cutting

attachment or cause damage to property

(e.g., parked vehicles, windows).

– Always wear proper eye protection and

keep bystanders at least 50 ft. (15 m)

away from the work area. Any persons

who must enter the restricted area must

also wear proper eye protection.

15m (50ft)

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5 IMPORTANT SAFETY INSTRUCTIONS

– Switch off the motor immediately if you are

approached while working with the trimmer.

￭ Your trimmer is equipped with a deflector. To reduce the

risk of personal injury from thrown objects and contact

with the cutting attachment:

￭ Use of metal cutting attachments, wire or metal-reinforced

line or other non-approved cutting attachments is not

authorized and could be extremely dangerous.

￭ To reduce the risk of severe personal injuries from

unintentional starting:

– Remove the battery before installing or adjusting the

bump guard.

￭ A damaged or loose cutting attachment or mowing head

may vibrate, crack, break or come off the trimmer, which

may result in serious or fatal injury.

– Make sure the cutting attachment and mowing head

are properly tightened before starting work.

– Check the tightness and condition of the cutting

attachment and mowing head before starting work

and any time trimming behavior changes during use.

Always switch off the motor, wait for the cutting

attachment to stop and remove the battery before

inspecting the trimmer or its cutting attachment.

– If the mowing head or cutting attachment loosens

after being properly tightened, stop work

immediately and have the trimmer inspected by your

authorized STIHL servicing dealer.

– Never use a trimmer with a loose mowing head or

cutting attachment.

￭ A cracked, damaged or worn out mowing head may

shatter at high speeds and cause serious or fatal injury.

– Have a cracked, damaged or worn out mowing head

replaced immediately, even if damage appears to be

limited to superficial cracks.

DANGER

￭ To reduce risk of electrocution:

– Never operate the trimmer with a

damaged or missing deflector. The

cutting attachment and deflector must be

an approved combination.

– Keep the deflector properly adjusted at

all times.

– Never use metal blades or metal-

reinforced line on this trimmer. Use only

the cutting attachments recommended in

this manual, in combination with the

recommended deflector. See

Combinations of Deflectors and Cutting

Attachments, @ 25.

– Never touch the cutting attachment or

mowing head with your hand, feet or any

other part of your body while the battery

is inserted, even when the cutting

attachment is not moving. Keep

bystanders at least 50 ft. (15 m) away.

– If the mowing head, cutting attachment

or deflector becomes dirty, clogged or

stuck, always switch off the motor, make

sure the cutting attachment has stopped

and remove the battery before inspecting

the cutting attachment and deflector.

Clean dirt, grass, weeds and other

material from the mowing head and

deflector at regular intervals, but only

after removing the battery.

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6 Battery Safety

6.1 Warnings and Instructions

WARNING

￭ Use of unauthorized batteries can damage the trimmer

and result in fire, explosion and personal injury and

property damage.

– Use only genuine STIHL AK series batteries.

￭ Use of STIHL AK series batteries for any purpose other

than powering STIHL power tools could be extremely

dangerous.

– Use STIHL AK series batteries only to power

compatible STIHL power tools.

￭ Use of unauthorized chargers can damage the battery and

result in fire, explosion and personal injury and property

damage.

– Use only genuine STIHL AL 101, AL 300 or AL 500

series chargers to charge STIHL AK series batteries.

￭ The battery contains safety features and devices which, if

damaged, may allow the battery to generate heat, rupture,

leak, ignite or explode.

– Never use or charge a malfunctioning, damaged,

cracked, leaking or deformed battery.

– Never open, disassemble, crush, drop, subject to

heavy impact or otherwise damage the battery.

– Never expose the battery to microwaves or high

pressures.

– Never insert objects into the battery's cooling slots.

￭ Extreme temperatures may cause the battery to generate

heat, rupture, leak, ignite or explode, resulting in severe or

fatal personal injury and property damage. Exposure to

temperatures outside the recommended temperature

range may also reduce battery life and performance.

￭ To reduce the risk of personal injury and property damage

in the event the battery emits smoke, an unusual smell or

feels unusually hot while using, charging or storing:

– Immediately discontinue using or charging the

battery. Contact the authorities in the event of fire or

explosion.

￭ To reduce the risk of a short circuit, which could lead to

electric shock, fire and explosion:

– Never bridge the battery terminals with wires or

other metallic objects.

– Keep a battery that is not in use away from metal

objects (e.g., paper clips, nails, coins, keys).

– Never transport or store the battery in a metal

container.

– Store the battery indoors in a dry room.

– Never store the battery in damp or corrosive

environments or in conditions that could lead to

corrosion of its metal components.

– Never operate this trimmer in the vicinity

of any wires or cables that may be

carrying electric current.

– Do not rely on the trimmer's insulation

against electric shock.

6 Battery Safety

– Never heat the battery above 212 °F

(100 °C).

– Never incinerate or place the battery on

or near fires, stoves or other high-

temperature locations.

– Use and store the battery only within an

ambient temperature range of 14 °F to

122 °F (-10 °C to 50 °C).

– Never store the battery in direct sunlight

or inside a vehicle in hot weather.

– Keep the battery dry. Protect it from rain,

water, liquids and damp conditions.

– Never immerse the battery in water or

other liquids.

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7 Charger Safety

– Never store the battery in the trimmer or charger.

– Protect the battery from exposure to corrosive

agents such as garden chemicals and de-icing salts.

– Protect the battery from exposure to conductive

liquids such as salt water.

– Do not attempt to repair, open or disassemble the

battery. There are no user-serviceable parts inside.

￭ Leaking battery fluid is potentially harmful and can cause

skin and eye irritation, chemical burns and other serious

personal injury.

– Avoid contact with skin and eyes.

– Use an inert absorbent such as sand on spilled

battery fluid.

– In the event of accidental contact, immediately rinse

the contact area thoroughly with mild soap and

water.

– If fluid gets into your eye(s): Do not rub. Rinse water

over the open eye(s) for at least 15 minutes and

seek medical attention.

￭ A battery fire can be dangerous. To reduce the risk of

severe personal injury and property damage in the event

of fire:

– Evacuate the area. Fire can spread rapidly. Stay

clear of any vapors generated and maintain a safe

distance.

– Contact the fire department.

– Although water can be used to put out a battery fire,

use of a multi-purpose dry chemical fire extinguisher

is preferable.

– Consult the fire department regarding proper

disposal of a burned battery.

￭ Dropping the battery could result in personal injury or

property damage. To prevent the battery from falling

during removal:

– Place the trimmer on a level surface.

– Position your hand behind the battery while pressing

the locking lever. Use care when ejecting the

battery.

7.1 Warnings and Instructions

WARNING

￭ To reduce the risk of fire, electric shock and other

personal injury or property damage:

– Read and follow all cautionary markings on the

charger, battery and trimmer and all instructions in

this manual before using the charger.

– Charge only genuine STIHL AK or STIHL AP series

batteries. Other batteries may burst, catch fire or

explode, resulting in personal injury and property

damage.

– Do not handle the charger, including power supply

cord and plug, with wet hands.

– Never use a damaged charger.

– Never charge malfunctioning, damaged, cracked,

leaking or deformed batteries.

– Never store a battery in the charger.

– Operate the charger only indoors, in dry rooms and

within an ambient temperature range of 41 °F to

104 °F (5 °C to 40 °C).

– Keep the charger out of the reach of children.

7 Charger Safety

– For indoor use only.

– Keep the charger dry. Protect it from

rain, water, liquids and damp conditions.

Never insert a wet battery or use a wet

charger.

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7 Charger Safety

– Always plug the charger into a properly installed

electrical outlet matching the voltage and electrical

frequency stated on the charger.

– Never use power strips to operate multiple chargers

or other devices from the same outlet or on the same

circuit.

– Do not operate a charger that has received a sharp

or heavy blow, has been dropped or is otherwise

damaged in any way.

– Do not attempt to repair, open or disassemble the

charger. There are no user-serviceable parts inside.

￭ To reduce the risk of electric shock or fire from a short

circuit:

– Make sure the battery and charger are completely

dry before starting the charging process.

– Never bridge the contacts of the charger with wires

or other metallic objects.

– Do not insert any objects into the charger's cooling

slots.

￭ The charger heats up during the charging process. To

reduce the risk of fire:

– Do not operate on a combustible surface (e.g.,

paper, cardboard, textiles) or in a combustible

environment.

– Allow the charger to cool down normally. Do not

cover it.

￭ Chargers can produce sparks which may ignite

combustible gases, liquids, vapors, dusts or other

combustible materials. To reduce the risk of fire and

explosion:

– Do not operate in a location where combustible

gases, liquids, vapors, dusts or other combustible

materials are present.

￭ Using a damaged power supply cord or plug may result in

fire, electric shock and other personal injury or property

damage. To reduce these risks:

– Have a damaged power supply cord replaced by an

authorized STIHL servicing dealer.

– Unplug the power supply cord from the outlet when

the charger is not in use.

– Never jerk the power supply cord to disconnect it

from the electrical outlet. To unplug, grasp the plug,

not the power supply cord.

– Do not use the power supply cord for carrying or

hanging up the charger.

– Make sure the power supply cord is located or

marked so that it will not be stepped on, tripped over,

come in contact with sharp objects or moving parts,

or otherwise be subjected to damage or stress.

￭ An extension cord should not be used unless absolutely

necessary. Overloading an extension cord can result in

overheating and fire. If an extension cord must be used:

– Use only a properly wired 16 gauge (AWG 16) or

heavier gauge extension cord.

– Never connect more than one charger or other

device to an extension cord.

– Never use an extension cord with a wattage rating

lower than the wattage on your charger's rating

plate.

– Never use an extension cord if the blades on its plug

are different from the blades on the charger plug in

number, size or shape.

– Do not link (chain) extension cords.

￭ In case of fire, or if the charger or the battery it is charging

emits smoke, an unusual smell, feels hot or appears

abnormal in any other way:

– Immediately disconnect the charger from the outlet.

Contact the authorities in the event of fire or

explosion.

– Check the charger’s power supply cord

and plug regularly for damage. If

damaged, immediately disconnect the

plug from the electrical outlet.

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8 Maintenance, Repair and Storage

8.1 Warnings and Instructions

WARNING

￭ There are no user-authorized repairs for the trimmer,

battery or charger. To reduce the risk of fire, electric shock

or other personal injury and property damage:

– Users may carry out only the cleaning and

maintenance operations described in this manual.

– Strictly follow the cleaning and maintenance

instructions in the appropriate sections of this

instruction manual.

– Never attempt to repair a damaged or broken

mowing head or cutting attachment. This may cause

broken parts to come off and result in serious or fatal

injuries.

– STIHL recommends that all repair or replacement

work be performed by authorized STIHL servicing

dealers.

￭ Unintentional starting may result in personal injury or

property damage. To reduce the risk of personal injury

and property damage from unintentional starting:

￭ Use of parts that are not authorized or approved by STIHL

may cause serious or fatal injury or property damage.

– STIHL recommends that only identical authorized

STIHL replacement parts be used for repair or

maintenance.

￭ To reduce the risk of electric shock:

– Unplug the charger from the electrical outlet before

inspecting or cleaning the charger.

– Regularly check the charger and ensure that the

insulation of the power supply cord and plug are in

good condition and show no signs of aging

(brittleness), wear or damage.

– Have a damaged power supply cord replaced by an

authorized STIHL servicing dealer.

￭ To reduce the risk of short circuit and fire:

– Keep the battery guides free of foreign matter. Clean

as necessary, @ 21.

￭ Improper storage can result in unauthorized use, damage

to the trimmer, battery and charger, and an increased risk

of fire, electric shock and other personal injury or property

damage.

– Remove the battery from the trimmer before storing.

– Never store the trimmer and charger with the battery

inserted.

– Before storing, always unplug the charger from the

electrical outlet and remove the battery.

– Store the trimmer, battery and charger indoors in a

dry, secure place that cannot be accessed by

children or other unauthorized users.

– Never store the battery in the trimmer, in the charger

in a metal container or in a container with metal

objects (e.g., paper clips, nails, coins, keys).

8 Maintenance, Repair and Storage

– Remove the battery before inspecting

the trimmer or carrying out any cleaning,

maintenance or repair work, before

storing, and any other time the trimmer is

not in use.

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9 Before Starting Work

9.1 Preparing the Trimmer for Operation

Before starting work:

► Fully charge the battery, @ 10.2.

► Mount the trimmer's loop handle, @ 12.3.

► Mount the deflector, @ 12.1.

► Mount an approved mowing head, @ 12.2.1.

► Adjust the length of the drive tube, @ 13.1.

► Adjust the trimmer's loop handle, @ 13.2.

► Check the controls for proper function and condition,

@ 16.1.

10.1 Setting up the Charger

WARNING

Read and follow the battery and charger safety precautions

and instructions in this manual, @ 6 and @ 7. To reduce

the risk of short circuit, which could lead to electric shock,

fire and explosion, make sure the charger and its

components are dry and not damaged; operate the charger

indoors at an appropriate ambient temperature, @ 7.

WARNING

Since the battery and charger heat up during the charging

process, do not operate the charger on a combustible

surface or in a location where combustible gases, liquids,

vapors, dusts or other materials and substances are

present, @ 7.

To set up the charger:

► Insert the plug (3) into a properly installed wall outlet (4)

matching the voltage and electrical frequency stated on

the rating plate on the charger.

The charger runs a self-test immediately after it is plugged

in. The charger LED (1) will glow green for about 1 second,

then it will glow red briefly before going out. Once the LED

goes out, the self-test is complete and the charger is ready

to charge the battery.

► Position the power supply cord (2) so that it will not be

stepped on, tripped over, come in contact with sharp

objects or moving parts or otherwise be subjected to

damage or stress.

10.2 Charging

WARNING

STIHL batteries contain safety features and devices which,

if damaged, may allow the battery to generate heat, rupture,

leak, ignite or explode. Never charge a malfunctioning,

damaged, cracked, leaking or deformed battery or use a

charger that has been damaged. For indoor use only. Keep

the charger dry. Protect it from rain, water, liquids and damp

conditions. Never insert a wet battery. Never use a wet

charger, @ 7.

9 Before Starting Work

10 Charging the Battery

3

2

1

2

0000-GXX-0636-A1

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