Stihl FSA 65 User manual

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STIHL FSA 65, 85 Instruction Manual
Notice d’emploi

GInstruction Manual
1 - 25
FNotice d’emploi
27 - 53

Original Instruction ManualPrinted on chlorine-free paper
Printing inks contain vegetable oils, paper can be recycled.
© ANDREAS STIHL AG & Co. KG, 2010
0458-284-8221-A. M0-5.L10.FST.
0000003590_002_GB
FSA 65, FSA 85
English
1
{
Contents
Dear Customer,
Thank you for choosing a quality
engineered STIHL product.
This machine has been built using
modern production techniques and
comprehensive quality assurance.
Every effort has been made to ensure
your satisfaction and troublefree use
of the machine.
Please contact your dealer or our
sales company if you have any
queries concerning your machine.
Your
Hans Peter Stihl
Guide to Using this Manual 2
Safety Precautions and Working
Techniques 2
Description of Operation 7
Using the Unit 8
Approved Combinations of Cutting
Attachment and Deflector 8
Adjusting the Loop Handle 9
Mounting the Deflector 9
Adjusting Nylon Line 10
Connecting Charger to Power
Supply 10
Charging the Battery 10
Light Emitting Diodes (LED) on
Battery 11
Light Emitting Diodes (LED) on
Charger 13
Switching On 14
Switching Off 15
Storing the Machine 15
Replacing Nylon Line 16
Maintenance and Care 19
Main Parts 20
Specifications 21
Special Accessories 22
Troubleshooting 23
Maintenance and Repairs 25
Battery Recycling 25
Disposal 25

FSA 65, FSA 85
English
2
Pictograms
All the pictograms attached to the
machine are shown and explained in this
manual.
Symbols in text
Engineering improvements
STIHL's philosophy is to continually
improve all of its products. For this
reason we may modify the design,
engineering and appearance of our
products periodically.
Therefore, some changes, modifications
and improvements may not be covered
in this manual.
Observe all applicable local safety
regulations, standards and ordinances.
If you have not used this power tool
model before: Have your dealer or other
experienced user show you how to
operate your power tool or attend a
special course in its operation.
Minors should never be allowed to use
the power tool.
Keep bystanders, especially children,
and animals away from the work area.
When the power tool is not in use, shut it
off so that it does not endanger others.
Secure it against unauthorized use.
The user is responsible for avoiding
injury to third parties or damage to their
property.
Do not lend or rent your power tool
without the instruction manual. Be sure
that anyone using it understands the
information contained in this manual.
The use of noise emitting power tools
may be restricted to certain times by
national or local regulations.
To operate the power tool you must be
rested, in good physical condition and
mental health.
If you have any condition that might be
aggravated by strenuous work, check
with your doctor before operating a
power tool.
Do not operate the power tool if you are
under the influence of any substance
(drugs, alcohol) which might impair
vision, dexterity or judgment.
Use your power tool only for cutting
grass, wild growth and similar materials.
Do not use your power tool for any other
purpose since it may result in accidents.
Guide to Using this Manual
Warning where there is a risk of
an accident or personal injury or
serious damage to property.
Caution where there is a risk of
damaging the machine or its
individual components.
Safety Precautions and
Working Techniques
Some special safety pre-
cautions have to be
observed when working
with this power tool
because of the very high
speed of the cutting
attachment.
It is important you read
and understand the
instruction manual before
using your unit for the
first time and keep the
manual in a safe place for
future reference. Non-
observance of the safety
precautions may result in
serious or even fatal
injury.

FSA 65, FSA 85
English
3
Only use cutting attachments and
accessories that are explicity approved
for this power tool by STIHL or are
technically identical. If you have any
questions in this respect, consult a
servicing dealer. Use only high quality
parts and accessories in order to avoid
the risk of accidents and damage to the
unit.
STIHL recommends the use of original
STIHL replacement parts. They are
specifically designed to match your
model and meet your performance
requirements.
Never attempt to modify your unit in any
way since this may increase the risk of
personal injury. STIHL excludes all
liability for personal injury and damage
to property caused while using
unauthorized attachments.
The deflector on this power tool cannot
protect the operator from all objects
thrown by the cutting attachment
(stones, glass, wire, etc.). Such objects
may ricochet and then hit the operator.
Do not use a pressure washer to clean
the unit. The solid jet of water may
damage parts of the unit.
Do not spray the machine with water.
Battery
–Use only original STIHL
rechargeable batteries.
–Use STIHL batteries only with
STIHL power tools and recharge
them only with STIHL chargers.
–Charge the battery before using it.
–Do not charge or use a defective,
damaged or deformed battery. Do
not open, damage or drop the
battery.
–Store the battery out of the reach of
children.
–Never expose the battery to
microwaves or high pressures.
–Never insert objects in the battery's
cooling slots.
–Never bridge the battery terminals
with metallic objects (short circuit).
The battery may be damaged by a
short circuit. Keep a battery that is
not in use away from metal objects
(e.g. nails, coins, jewelry). Do not
use metallic transport boxes.
–Fluid may leak from the battery if it is
not used properly – avoid contact
with the skin! Leaking battery fluid
can cause skin irritation and
chemical burns. In case of
accidental contact, wash affected
areas of skin with plenty of water
and soap. If fluid gets in the eyes, do
not rub – rinse the eyes with plenty
of water for at least 15 minutes. Also
seek medical assistance.
Charger
–Use only original STIHL chargers.
–Only use for charging matching
STIHL batteries of type AP with a
maximum capacity of 10 Ah and a
maximum voltage of 42 V.
–Never charge defective, damaged
or deformed batteries.
Remove the battery from
the power tool before:
–carrying out tests and adjustments
or cleaning work
–working on the cutting attachment
–leaving the machine unattended
–transporting the machine
–storing the machine
–performing repairs and mainte-
nance work
–in the event of danger or in an
emergency
This avoids the risk of the motor starting
unintentionally.
Protect from rain – do not
immerse in fluids.
Protect from direct sun-
light, heat and fire –
never throw into a fire –
risk of explosion.
Operate and store the
battery only in a tempera-
ture range from - 10°C to
max. + 50°C.

FSA 65, FSA 85
English
4
–Connect the charger only to an
easily accessible wall outlet with the
voltage and frequency specified on
the rating plate.
–Do not use a defective or damaged
charger.
–Do not open the charger.
–Store the charger out of the reach of
children.
–Operate the charger at ambient
temperatures between + 5°C and
+ 40°C.
–Allow the charger to cool down
normally – do not cover it.
–Never bridge (short circuit) the
contacts of the charger with metallic
objects (e.g. nails, coins, jewelry).
The charger may be damaged by a
short circuit.
–In the event of smoke or fire in the
charger, disconnect it from the wall
outlet immediately.
– To reduce the risk of electric
shock or short circuit, do not
insert any objects in the charger's
cooling slots.
–Do not operate on an easily
combustible surface (e.g. paper,
texiles) or in an easily combustible
environment – risk of fire.
–Do not operate in a hazardous
location, i.e. in a location where
there are combustible liquids
(fumes), vapors or dusts. Chargers
can produce sparks, which may
ignite the dust or vapors – risk of
explosion.
–Never jerk the connecting cord to
disconnect it from the wall outlet. To
unplug, grasp the plug, not the cord.
Have a damaged connecting cord
repaired by an experienced
electrician.
–Do not use the connecting cord for
any other purpose, e.g. for carrying
or hanging up the charger.
–Never use connecting cords that do
not comply with regulations.
–To reduce the risk of stumbling,
position and mark the connecting
cord so that it cannot be damaged
or endanger others.
To reduce the risk of electric shock:
–Always connect the unit to a
properly installed wall outlet.
–Make sure the insulation of the
connecting cord and plug is in good
condition.
After using the charger, unplug it from
the wall socket.
Clothing and Equipment
Wear proper protective clothing and
equipment.
Avoid clothing that could get caught on
branches or brush or moving parts of the
machine. Do not wear a scarf, necktie or
jewelry. Tie up and confine long hair
(e.g. with a hair net, cap, hard hat, etc.).
A face shield alone does not provide
adequate eye protection.
STIHL offers a comprehensive range of
personal protective clothing and
equipment.
Protect from rain and
dampness.
Use and store only
indoors in dry rooms.
Check the charger's con-
necting cord regularly for
damage. If the connect-
ing cord is damaged,
immediately disconnect
the plug from the wall
outlet to avoid the risk of
electric shock.
Clothing must be sturdy
but allow complete free-
dom of movement. Wear
snug-fitting clothing, an
overall and jacket combi-
nation, do not wear a
work coat.
Wear sturdy shoes with
non-slip soles.
To reduce the risk of
injury from thrown
objects, always wear a
face shield and safety
glasses.
Wear heavy-duty gloves.

FSA 65, FSA 85
English
5
Transporting the Unit
Always switch off the power tool, move
the retaining latch to ƒand remove the
battery – even when you carry the
machine for short distances. This avoids
the risk of the motor starting
unintentionally.
Carry the power tool properly balanced
by the shaft.
Transporting in a vehicle: Properly
secure the power tool to prevent
turnover and damage.
Before Starting Work
Check that your power tool is properly
assembled and in good condition – refer
to appropriate chapters in the instruction
manual.
–The trigger switch and trigger
lockout must move freely (retaining
latch to ‚) – switches must return
to the idle position when they are
released.
–Use only an approved combination
of cutting attachment, deflector and
handle. All parts must be
assembled properly and securely.
To reduce the risk of injury, never
use metal cutting attachments.
–Check that the cutting attachment is
properly and securely mounted and
in good condition.
–Check protective devices (e.g.
deflector for cutting attachment) for
damage or wear. Always replace
damaged parts. Never operate the
unit with a damaged deflector.
–Never attempt to modify the controls
or the safety devices in any way.
–Keep the handles dry and clean –
free from oil and dirt – for safe
control of the power tool.
–Check contacts in battery
compartment for foreign matter.
–Fit the battery correctly – it must
engage audibly.
–Never use defective or deformed
batteries.
To reduce the risk of accidents and
personal injury, do not operate your
power tool if it is not properly assembled
and in good condition.
Before switching on the power tool,
make sure the cutting attachment is not
touching the ground or any other object.
Holding and Controlling the Unit
Always hold the unit firmly with both
hands on the handles. Make sure you
always have good balance and secure
footing.
Right-handers
Left hand on the loop handle and right
hand on the control handle.
Left-handers
Right hand on the loop handle and left
hand on the control handle.
During Operation
In case of imminent danger or in an
emergency, switch off the motor
immediately, move retaining latch to ƒ
and remove the battery.
3905BA000 KN
To reduce the risk of
injury, avoid contact with
the cutting attachment.
Note that the cutting
attachment continues to
run for a short period
after the power tool is
switched off – flywheel
effect.
3905BA001 KN3905BA026 KN

FSA 65, FSA 85
English
6
To reduce the risk of personal injury ,
do not allow any other persons within a
radius of 15 meters of your own position.
To reduce the risk of damage to
property, also maintain this distance
from other objects (vehicles, windows).
Do not leave the machine outdoors in
the rain.
Do not cut wet grass.
Take special care in slippery conditions
– damp, snow, ice, on slopes or uneven
ground.
Watch out for obstacles: Roots, tree
stumps or holes which could cause you
to trip or stumble.
To reduce the risk of accidents, take a
break in good time to avoid tiredness or
exhaustion.
Work calmly and carefully – in daylight
conditions and only when visibility is
good. Stay alert so as not to endanger
others.
If your power tool is subjected to
unusually high loads for which it was not
designed (e.g. heavy impact or a fall),
always check that it is in good condition
before continuing work – see also
"Before Starting Work". Make sure the
safety devices are working properly. Do
not continue operating your power tool if
it is damaged. In case of doubt, have the
machine checked by your servicing
dealer.
Special care must be taken when
working in difficult, over-grown terrain.
The dust that occurs during operation
may be harmful to health. If dust levels
are very high, wear a suitable respirator.
Before leaving the power tool
unattended: Switch off the power tool,
move the retaining latch to ƒand
remove the battery.
Check the cutting attachment at regular
short intervals during operation or
immediately if there is a noticeable
change in cutting behavior:
–Switch off the motor, move the
retaining latch to ƒand wait for the
cutting attachment to come to a
standstill, remove the battery.
–Check condition and tightness, look
for cracks.
Clean grass and plant residue off the
cutting attachment mounting at regular
intervals – remove any build up of
material from the cutting attachment and
deflector.
To replace the cutting attachment,
switch off the power tool, move the
retaining latch to ƒand remove the
battery. This avoids the risk of injury
from the motor starting unintentionally.
Never continue using or attempt to
repair damaged or cracked cutting
attachments.
This may cause parts of the cutting
attachment to come off and hit the
operator or bystanders at high speed
and result in serious or fatal injuries.
Use only the deflector with properly
mounted line limiting blade to ensure the
mowing lines are automatically trimmed
to the approved length.
After Finishing Work
Always clean dust and dirt off the power
tool – do not use any grease solvents for
this purpose.
Vibrations
This power tool is minimizes the
vibrations transmitted to the operator's
hands.
The drive motor is not
waterproof. Never work
with the power tool in the
rain or in wet or very
damp locations.
15m (50ft)
To reduce the risk
of injury from
thrown objects,
never operate the
unit without the
proper deflector for
the type of cutting
attachment being
used.
Inspect the work area:
Stones, pieces of metal
or other solid objects can
be thrown and cause per-
sonal injury or damage
the cutting attachment
and property (e.g. parked
vehicles, windows).

FSA 65, FSA 85
English
7
However, the operator should seek
medical advice in the event of suspected
circulatory problems in the hands (e.g.
tingling sensation in the fingers).
Maintenance and Repairs
Always move the retaining latch to ƒ
and remove the battery before carrying
out any repairs or maintenance work on
the power tool. This avoids the risk of
the motor starting unintentionally.
Service the machine regularly. Do not
attempt any maintenance or repair work
not described in the instruction manual.
Have all other work performed by a
servicing dealer.
STIHL recommends that you have
servicing and repair work carried out
exclusively by an authorized STIHL
servicing dealer. STIHL dealers are
regularly given the opportunity to attend
training courses and are supplied with
the necessary technical information.
Only use high-quality replacement parts
in order to avoid the risk of accidents
and damage to the unit. If you have any
questions in this respect, consult a
servicing dealer.
STIHL recommends the use of genuine
STIHL replacement parts. They are
specifically designed to match your
model and meet your performance
requirements.
Never attempt to modify your power tool
in any way since this will increase the
risk of personal injury.
Regularly check the electrical contacts
and ensure that the insulation of the
connecting cord and plug of the charger
is in good condition and shows no sign
of ageing (brittleness).
Electrical components, e.g. connecting
cord of charger, may only be repaired or
replaced by a qualified electrician.
Clean plastic components with a cloth.
Do not use aggressive detergents. They
may damage the plastic.
Check tightness of mounting screws on
safety devices and the cutting
attachment and retighten if necessary.
Clean cooling air inlets in motor housing
as necessary.
Keep the battery guides free from
foreign matter – clean as necessary.
Store the power tool in a dry, locked
location with the retaining latch on ƒ
and the battery removed.
The power tool is operated with a
rechargeable battery. Use only STIHL
chargers to recharge the battery.
Data exchange
The power tool, battery and charger
communicate with each other. The
charger charges the battery and the
battery supplies the necessary power
only if data exchange functions properly.
For this reason you should operate your
power tool only with the approved STIHL
batteries and STIHL chargers.
Description of Operation

FSA 65, FSA 85
English
8
Mowing
NHold the unit with both hands – one
hand on the control handle – one
hand on the loop handle.
NStand upright – hold the power tool
in a relaxed position.
NMake sure the cutting attachment is
not touching the ground or any other
objects.
NSwing the trimmer back and forth in
an arc.
NThe cutting height is determined by
the distance of the mowing line from
the lawn surface.
NAvoid contact with fences, walls,
rocks, etc. since it will result in a
higher rate of wear.
Working with bump guard
The bump guard comes standard with
the FSA 85. It is available as a special
accessory for the FSA 65.
The bump guard (1)
–Limits the cutting range of the
mowing line
–reduces the risk of the rotating
mowing line causing damage (e.g.
tree bark)
Disposal
NDo not throw cuttings into the
garbage can – they can be
composted.
Cutting attachment
The trimmer comes from the factory with
the AutoCut C 4-2 mowing head already
fitted. For safety reasons no other
cutting attachments may be mounted to
the trimmer.
Deflector
The trimmer is supplied with a deflector.
Only this deflector may be mounted to
the trimmer – no other deflectors are
permitted. For further information see
"Mounting the Deflector".
Using the Unit
3905BA002 KN
The mowing head may continue
to rotate briefly after you switch off
your power tool – wait for the
mowing head to come to a
standstill before adjusting the
bump guard – do not adjust it with
your foot.
1
3905BA003 KN
Approved Combinations of
Cutting Attachment and
Deflector
3905BA004 KN

FSA 65, FSA 85
English
9
Your new power tool comes with the
loop handle mounted on the drive tube,
but it must be turned and lined up to suit
your requirements.
NLoosen the star knob (1) on the
handle.
NTurn the handle to the vertical
position.
The loop handle can be adjusted to suit
the height and reach of the operator and
the application by changing
distance (A).
Recommendation: distance (A):
about 10 cm
NSlide the handle to the required
position.
NTighten down the star knob so that
the handle cannot be rotated on the
shaft.
NPosition your trimmer so that the
mowing head (1) faces up.
The motor housing has guide slots
(arrows) to correctly locate the deflector.
NPush the deflector (2) into the guide
slots as far as stop.
NInsert the screws (3) and tighten
them down firmly.
Adjusting the Loop Handle
1
3905BA005 KN
3905BA006 KN
3905BA007 KN
A
Mounting the Deflector
1
3905BA008 KN
3
2
3
3905BA009 KN

FSA 65, FSA 85
English
10
Adjusting Nylon Line
NHold the rotating mowing head
above the ground – tap it on the
ground once – about 3 cm fresh line
is advanced.
The blade (1) on the deflector (2) trims
surplus line to the correct length – avoid
tapping the mowing head more than
once at a time.
Line feed operates only if both lines still
have a minimum length of 2.5 cm.
If the line is shorter than 2.5 cm:
NSwitch off the trimmer.
NMove the retaining latch to ƒand
remove the battery.
NTurn the trimmer on its back.
NPress down the cap on the spool as
far as stop.
NPull the ends of the lines out of the
spool.
If the spool is empty, see "Replacing
Nylon Line".
Mains voltage and operating voltage
must be the same.
NInsert the mains plug (1) in the wall
outlet (2).
A self test is performed after the charger
is connected to the power supply. During
this process the light emitting diode (1)
on the charger lights up green for about
1 second, then red and goes off again.
The battery is given a charge of about
30% before leaving the factory.
Recommendation: Fully charge the
battery before using your power tool for
the first time.
NConnect the charger to the power
supply – mains voltage and
operating voltage of the charger
must be the same – see
"Connecting Charger to Power
Supply".
Operate the charger indoors only in dry
locations at an ambient temperature
between +5°C and +40°C.
NPush the battery (1) into the
charger (2) until you feel noticeable
resistance – then push it as far as
stop.
Adjusting Nylon Line
1
2
3905BA010 KN
Connecting Charger to
Power Supply
3901BA015 KN
2
1
1
3901BA019 KN
Charging the Battery
2
3901BA009 KN

FSA 65, FSA 85
English
11
The light emitting diode (3) on the
charger comes on when the battery is
inserted – see "Light Emitting Diodes
(LED) on Charger"
Charging begins as soon as the light
emitting diodes (4) on the battery light
up green – see "Light Emitting Diodes
(LED) on Battery".
The charge time is dependent on a
number of factors, including battery
condition, ambient temperature, etc.,
and may therefore vary from the charge
time in the "Specifications".
The battery becomes hot during
operation. If a hot battery is inserted in
the charger, it may be necessary to cool
it down before charging. The charging
process begins only after the battery has
cooled down. The time required for
cooling may prolong the charge time.
The battery and charger become warm
during the charging process.
AL 300 charger
This charger is equipped with a battery
cooling fan which is audible when it is
running.
AL 100 charger
This charger waits for the battery to cool
down before starting the charging
process. The battery is cooled normally
by heat transfer to the ambient air.
End of charge
The charger switches itself off
automatically when the battery is fully
charged:
–Light emitting diodes on the battery
go off
–The light emitting diode on the
charger goes off
–The charger's fan is switched off (if
charger is so equipped)
Remove the charged battery from the
charger.
Four LEDs indicate the charge state of
the battery as well as any problems that
occur with the battery or the machine.
NPress button (1) to activate the
display – display switches off
automatically after 5 seconds
The LEDs can be green, red or flashing.
4
3901BA014 KN
3
Light Emitting Diodes
(LED) on Battery
LED is continuously green.
LED flashes green.
LED is continuously red.
LED flashes red.
1
3901BA010 KN

FSA 65, FSA 85
English
12
During charging
The LEDs indicate the progress of
charging by lighting up continuously or
flashing.
During charging, the current charging
capacity is indicated by a flashing green
LED.
When the charging process is
completed, the LEDs on the battery
switch off automatically.
If the LEDs on the battery are
continuously red or flash red – see "If the
red LEDs are continuously red / flash".
During work
The green LEDs indicate the charge
state by lighting up continuously or
flashing.
If the LEDs on the battery are
continuously red or flash red – see "If the
red LEDs are continuously red / flash".
If the red LEDs are continuously red /
flash
3901BA016 KN
80 - 100 %
60 - 80 %
40 - 60 %
20 - 40 %
0 - 20 %
3901BA016 KN
80 - 100 %
60 - 80 %
40 - 60 %
20 - 40 %
0 - 20 %
1LEDiscontinu-
ously red:
Battery is too hot
1) 2)/cold 1)
1) During charging: The charging
process starts automatically after
the battery has cooled down /
warmed up.
2) During work: Machine switches off
automatically – let the battery cool
off for a while, it may help to remove
the battery from the machine for
this.
4 LEDs flash red: Fault in battery 3)
3 LEDs are contin-
uously red:
Machine is too hot
– allow it to cool off
3LEDsflashred: Faultinmachine
4)
3901BA017 KN

FSA 65, FSA 85
English
13
The light emitting diode lights up green
or flashes red.
Green continuous light ...
... means the following:
The battery
–is being charged
–is too hot and must cool down
before it is charged
See also "Light Emitting Diodes (LED)
on Battery".
The green light emitting diode on the
charger goes off as soon as the battery
is fully charged.
Red flashing light ...
... means the following:
–No electrical contact between
battery and charger – remove and
refit the battery
–Faulty battery – see also "Light
Emitting Diodes (LED) on Battery".
–Charger faulty – have checked by a
servicing dealer. STIHL
recommends a STIHL servicing
dealer.
3) Remove battery from the machine
and reinsert it. Turn on the machine
– if the LEDs still flash, the battery is
faulty and must be replaced.
4) Remove battery from the machine
and reinsert it. Turn on the machine
– if the LEDs still flash, the machine
is faulty and must be checked by a
servicing dealer – STIHL
recommends STIHL servicing
dealers.
Light Emitting Diodes
(LED) on Charger
1
3901BA019 KN

FSA 65, FSA 85
English
14
The battery is given a charge of about
30% before leaving the factory.
Recommendation: Fully charge the
battery before using your power tool for
the first time.
NIf necessary, remove the cover from
the battery compartment before
fitting the battery, i.e. depress both
locking tabs to unlock and remove
the cover.
Fitting the battery
NInsert the battery (1) in the power
tool – the battery slides into the
compartment – press it down
carefully until it snaps into position –
the battery must be flush with the
top of the housing.
Switching On
NMake sure you have a secure and
balanced footing.
NStand upright – hold the power tool
in a relaxed position.
NMake sure the cutting attachment is
not touching the ground or any other
objects.
NHold the unit with both hands – one
hand on the control handle – one
hand on the loop handle.
NUnlock the power tool by moving the
retaining latch (2) to ‚.
NPush down the trigger switch
lockout (3) and depress the trigger
switch (4) and hold them in that
position.
The motor runs only if the retaining
latch (2) is on ‚and the trigger switch
lockout (3) and trigger switch (4) are
operated simultaneously.
Trigger Switch
Motor speed can be controlled with the
trigger switch. Motor speed is increased
progressively by squeezing the trigger
switch (FSA 85 only).
Switching On
1
3905BA011 KN
2
3905BA012 KN
4
3
2
3905BA013 KN

FSA 65, FSA 85
English
15
NRelease the trigger switch
lockout (1) and the trigger
switch (2).
NMove the retaining latch (3) to ƒ–
the trigger switch (2) cannot be
operated – the power tool is locked
to prevent start-up.
Always remove the battery from the
power tool during work breaks and after
finishing work.
Removing the battery
NPress in both locking tabs (4) at the
same time to unlock the battery (5).
NTake the battery (5) out of the
housing.
When the power tool is not in use, shut it
off so that it does not endanger others.
Secure it against unauthorized use.
NMove the retaining latch to ƒ.
NRemove the battery.
NThoroughly clean the machine.
NStore the machine in a dry, high or
locked location – out of the reach of
children and other unauthorized
persons.
Cover for battery compartment
In some markets the machine comes
with a cover for the battery
compartment. It protects the battery
compartment from contamination.
NAfter finishing work, slide the
cover (1) home until it engages
audibly in position.
Switching Off
2
1
3905BA014 KN
3
3905BA015 KN
2
4
4
3905BA016 KN
Storing the Machine
3905BA027 KN
1

FSA 65, FSA 85
English
16
Storing the battery
NTake the battery out of the power
tool or the charger.
NStore in a dry, locked location. Keep
it out of the reach of children and
other unauthorized persons and
protected from contamination.
NDo not store spare batteries unused
– use in rotation.
To ensure maximum battery life:
NStore at a temperature between
+ 10°C and + 20°C.
NStore with a charge of about 30%.
Storing the charger
NRemove the battery.
NDisconnect the plug from the wall
outlet.
NStore the charger in a dry, locked
location. Keep it out of the reach of
children and other unauthorized
persons and protected from
contamination.
STIHL AutoCut C 4-2
Always check the mowing head for signs
of wear before replacing the nylon line.
Preparations
NSwitch off the trimmer.
NMove the retaining latch to ƒ.
NRemove the battery
NPut the power tool on the ground
with the mowing head facing up.
Removing the mowing head and
remaining nylon line
In normal operation, the supply of nylon
line in the head is used up almost
completely.
NHold the mowing head steady and
rotate the cap (1) counterclockwise
until it can be removed.
NRemove the mowing head.
NPull the spool (2) out of the mowing
head (3) and remove the remaining
line.
Replacing Nylon Line
If there are signs of serious wear,
replace the complete mowing
head.
3905BA017 KN
2
3
1

FSA 65, FSA 85
English
17
Assembling the mowing head
NFit the empty spool in the mowing
head (3).
If the spring (4) has popped out:
NPush the spring into the spool (2) as
far as stop.
Winding line onto spool
NUse green-coded nylon line with a
diameter of 2.0 mm.
NCut two 2.5 m lengths of line from
the replacement reel (special
accessory).
NRotate the spool (2)
counterclockwise until the two arrow
points are in alignment.
NPush the straight end of each line
through one sleeve (5) in the
mowing head (3) until you feel a
noticeable resistance – and then
continue pushing as far as stop.
NHold the mowing head steady.
NRotate the spool counterclockwise
until the shortest line is about
10 cm.
NIf necessary, cut the longer line to a
length of about 10 cm.
The mowing head is now full.
Mounting the Mowing Head
NSlip the mowing head (6) over the
shaft (7) and engage hex recess (8)
on the external hexagon (9).
3905BA018 KN
2
3
4
35
3905BA019 KN
3
3905BA020 KN
8
6
9
3905BA021 KN
7

FSA 65, FSA 85
English
18
NTurn the spool (2) clockwise until
the two arrow heads line up –
secure the spool in this position.
NInsert the cap (1) in the spool (2),
press it down as far as stop and turn
it clockwise at the same time.
NTurn the cap (1) as far as stop and
tighten it down by hand.
1
2
3905BA022 KN
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