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STIHL FS 410 C
Instruction Manual
Original Instruction ManualPrinted on chlorine-free paper
Printing inks contain vegetable oils, paper can be recycled.
© ANDREAS STIHL AG & Co. KG, 2015
0458-744-0121-B. VA6.L13.
0000003750_018_GB
FS 410 C, FS 410 C L
English
1
{
This instruction manual is protected by copyright. All rights reserved, especially the rights to reproduce, translate and process
with electronic systems.
Contents
Dear Customer,
Thank you for choosing a quality
engineered STIHL product.
It 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 product.
Please contact your dealer or our sales
company if you have any queries
concerning this product.
Your
Dr. Nikolas Stihl
Guide to Using this Manual 2
Safety Precautions and Working
Techniques 2
Approved Combinations of Cutting
Attachment, Deflector, Limit Stop
and Harness 12
Mounting the Bike Handle 13
Adjusting the Throttle Cable 16
Mounting the Deflector 16
Mounting the Cutting Attachment 17
Fuel 22
Fueling 24
Fitting the Full Harness 24
Balancing the Machine 25
Starting / Stopping the Engine 25
Operating Instructions 28
Air filter 28
Adjusting the Carburetor 29
Winter Operation 29
Spark Plug 31
Engine Running Behavior 32
Rewind Starter 32
Storing the Machine 33
Sharpening Metal Cutting Blades 33
Maintaining the Mowing Head 34
Inspection and Maintenance by
User 35
Inspections and Maintenance by
Dealer 36
Maintenance and Care 38
Minimize Wear and Avoid Damage 40
Main Parts 41
Specifications 42
Maintenance and Repairs 43
Disposal 44
EC Declaration of Conformity 44
FS 410 C, FS 410 C L
English
2
Pictograms
The meanings of the pictograms
attached to the machine are explained in
this manual.
Depending on the model concerned, the
following pictograms may be attached to
your machine.
Symbols in text
WARNING
Warning where there is a risk of an
accident or personal injury or serious
damage to property.
NOTICE
Caution where there is a risk of
damaging the machine or its individual
components.
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 type of power
tool before: Have your dealer or other
experienced user show you how it is
operated or attend a special course in its
operation.
Minors should never be allowed to use a
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.
Guide to Using this Manual
Fuel tank; fuel mixture of
gasoline and engine oil
Operate decompression
valve
Manual fuel pump
Operate manual fuel
pump
Tube of grease
Intake air: Summer
operation
Intake air: Winter
operation
Handle heating
Safety Precautions and
Working Techniques
Special safety precau
-
tions must be observed
when working with a
power tool.
It is important that you
read the instruction man
-
ual before first use and
keep it in a safe place for
future reference. Non-
observance of the
instruction manual may
result in serious or even
fatal injury.
FS 410 C, FS 410 C L
English
3
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.
Persons with pacemakers only: The
ignition system of your power tool
produces an electromagnetic field of a
very low intensity. This field may
interfere with some pacemakers. STIHL
recommends that persons with
pacemakers consult their physician and
the pacemaker manufacturer to reduce
any health risk.
Do not operate the power tool if you are
under the influence of any substance
(drugs, alcohol) which might impair
vision, dexterity or judgment.
Depending on the cutting attachment
fitted, use your power tool only for
cutting grass, wild growth, shrubs,
scrub, bushes, small diameter trees and
similar materials.
Do not use your power tool for any other
purpose because of the increased risk of
accidents.
Only use cutting attachments and
accessories that are explicitly approved
for this power tool model by STIHL or
are technically identical. If you have any
questions in this respect, consult a
servicing dealer. Use only high quality
tools and accessories in order to avoid
the risk of accidents and damage to the
machine.
STIHL recommends the use of genuine
STIHL tools and accessories. They are
specifically designed to match the
product and meet your performance
requirements.
Never attempt to modify your machine 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.
Do not use a pressure washer to clean
your power tool. The solid jet of water
may damage parts of the power tool.
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.
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.).
Sturdy shoes with non-slip soles may be
worn as an alternative only when using
mowing heads.
WARNING
Wear a face shield and make sure it is a
good fit. A face shield alone does not
provide adequate eye protection.
Wear hearing protection, e.g. earplugs
or ear muffs.
Wear a safety hard hat for thinning
operations, when working in high scrub
and where there is a danger of head
injuries from falling objects.
STIHL offers a comprehensive range of
personal protective clothing and
equipment.
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 steel-toed safety
boots with non-slip soles.
To reduce the risk of eye
injuries, wear close-fit
-
ting safety glasses in
accordance with Euro
-
pean Standard EN 166.
Make sure the safety
glasses are a comforta
-
ble and snug fit.
Wear heavy-duty work
gloves made of durable
material (e.g. leather).
FS 410 C, FS 410 C L
English
4
Transporting the Power Tool
Always stop the engine.
Carry the unit hanging from the shoulder
strap or properly balanced by the drive
tube.
To reduce the risk of cut injuries, fit
transport guard on the cutting
attachment, even when carrying the tool
for short distances – see also
"Transporting the Unit".
Transporting by vehicle: Properly secure
your power tool to prevent turnover, fuel
spillage and damage.
Fueling
Always shut off the engine before
refueling.
Do not fuel a hot engine – fuel may spill
and cause a fire.
Open the fuel cap carefully to allow any
pressure build-up in the tank to release
slowly and avoid fuel spillage.
Fuel your power tool only in well-
ventilated areas. If you spill fuel, wipe
the machine immediately if fuel gets on
your clothing, change immediately.
This reduces the risk of unit vibrations
causing the fuel cap to loosen or come
off and spill quantities of fuel.
To reduce the risk of serious or fatal
burn injuries, check for fuel leakage. If
fuel leakage is found, do not start or run
the engine until leak is fixed.
Before Starting
Check that your power tool is properly
assembled and in good condition refer
to appropriate chapters in the instruction
manual.
Check the fuel system for leaks,
paying special attention to visible
parts such as the tank cap, hose
connections and the manual fuel
pump (on machines so equipped). If
there are any leaks or damage, do
not start the engine – risk of fire.
Have your machine repaired by a
servicing dealer before using it
again.
Use only an approved combination
of cutting attachment, deflector,
handle and harness. All parts must
be assembled properly and
securely.
The stop switch must move freely.
Check smooth action of choke
knob, throttle trigger lockout and
throttle trigger – the throttle trigger
must return automatically to the idle
position. The choke lever must
spring back from the g and <
positions to the run position F when
the throttle trigger lockout and
throttle trigger are squeezed.
Check that the spark plug boot is
secure – a loose boot may cause
arcing that could ignite combustible
fumes and cause a fire.
Check cutting tool or attachment for
correct and secure assembly and
good condition.
Check protective devices (e.g.
deflector for cutting attachment,
rider plate) for damage or wear.
Always replace damaged parts. Do
not operate your machine with a
damaged deflector or worn rider
plate (lettering and arrows no longer
legible).
Never attempt to modify the controls
or safety devices in any way.
To reduce the risk of seri
-
ous burn injuries, avoid
touching hot parts of the
machine, including the
gearbox housing.
Gasoline is an extremely
flammable fuel. Keep
clear of naked flames. Do
not spill any fuel – do not
smoke.
002BA479 KN
After fueling, tighten
down the fuel tank cap as
securely as possible.
FS 410 C, FS 410 C L
English
5
Keep the handles dry and clean –
free from oil and dirt – for safe
control of the power tool.
Adjust the harness and handle(s) to
suit your height and reach. See
chapters on "Fitting the Harness"
and "Balancing the Machine".
To reduce the risk of accidents, do not
operate your power tool if it is damaged
or not properly assembled.
If you use a shoulder strap or full
harness: Practice removing and putting
down the machine as you would in an
emergency. To avoid damage, do not
throw the machine to the ground when
practicing.
Starting the Engine
Start the engine at least 3 meters from
the fueling spot, outdoors only.
Place the unit on firm ground in an open
area. Make sure you have good balance
and secure footing. Hold the unit
securely. The cutting attachment must
be clear of the ground and all other
obstructions because it may begin to run
when the engine starts.
Your power tool is a one-person unit. To
reduce the risk of injury from thrown
objects, do not allow other persons
within a radius of 15 meters of your own
position – even when starting.
Check idle speed setting: The cutting
attachment must not rotate when the
engine is idling with the throttle trigger
released.
To reduce the risk of fire, keep hot
exhaust gases and hot muffler away
from easily combustible materials (e.g.
wood chips, bark, dry grass, fuel).
Holding and Controlling the Power Tool
Always hold the power tool firmly with
both hands on the handles.
Make sure you always have good
balance and secure footing.
Right handle on control handle, left hand
on left handle.
During Operation
Make sure you always have good
balance and secure footing.
In the event of imminent danger or in an
emergency, press the stop switch to
shut off the engine.
The cutting attachment may catch and
fling objects a great distance and cause
injury - therefore, 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). Even maintaining a distance
of 15 meters or more cannot exclude the
potential danger.
The correct engine idle speed is
important to ensure that the cutting
attachment stops rotating when you let
go of the throttle trigger.
Check and correct the idle speed setting
regularly. If the cutting attachment
continues to rotate when the engine is
idling, have the machine checked by
your servicing dealer. STIHL
recommends an authorized STIHL
servicing dealer.
Take special care in slippery conditions
(ice, wet ground, snow), on slopes or
uneven ground.
To reduce the risk of
injury, avoid contact with
the cutting attachment.
Do not drop start the
power tool – start the
engine as described in
the instruction manual.
Note that the cutting
attachment continues to
run for a short period
after you let go of the
throttle trigger – flywheel
effect.
002BA480 KN
15m (50ft)
FS 410 C, FS 410 C L
English
6
Watch out for obstacles: Roots and tree
stumps which could cause you to trip or
stumble.
Always stand on the ground while
working, never on a ladder, work
platform or any other insecure support.
Be particularly alert and cautious when
wearing hearing protection because
your ability to hear warnings (shouts,
alarms, etc.) is restricted.
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.
To reduce the risk of serious or fatal
injury from breathing toxic fumes,
ensure proper ventilation when working
in trenches, hollows or other confined
locations.
To reduce the risk of accidents, stop
work immediately in the event of
nausea, headache, visual disturbances
(e.g. reduced field of vision), problems
with hearing, dizziness, deterioration in
ability to concentrate. Apart from other
possibilities, these symptoms may be
caused by an excessively high
concentration of exhaust gases in the
work area.
Operate your power tool so that it
produces a minimum of noise and
emissions – do not run the engine
unnecessarily, accelerate the engine
only when working.
To reduce the risk of fire, do not smoke
while operating or standing near your
power tool. Note that combustible fuel
vapor may escape from the fuel system.
The dusts, vapor and smoke produced
during operation may be dangerous to
health. If the work area is very dusty or
smoky, wear a respirator.
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".
Check the fuel system in particular for
leaks and make sure the safety devices
are working properly. Do not continue
operating your power tool if it is
damaged. In case of doubt, consult your
servicing dealer.
Do not operate your power tool with the
choke lever in the warm start position <
the engine speed cannot be controlled
in this position.
Special care must be taken when
working in difficult, over-grown terrain.
When cutting high scrub, under bushes
and hedges: Keep cutting attachment at
a minimum height of 15 cm to avoid
harming small animals.
Always shut off the engine before
leaving the unit unattended.
Check the cutting attachment at regular
short intervals during operation or
immediately if there is a noticeable
change in cutting behavior:
Turn off the engine. Hold the unit
firmly and wait for the cutting
attachment to come to a standstill.
Check condition and tightness, look
for cracks.
Check sharpness.
Replace damaged or dull cutting
attachments immediately, even if
they have only superficial cracks.
Your power tool produces
toxic exhaust fumes as
soon as the engine is
running. These fumes
may be colorless and
odorless and contain
unburned hydrocarbons
and benzol. Never run
the engine indoors or in
poorly ventilated loca
-
tions, even if your model
is equipped with a cata
-
lytic converter.
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 may
be thrown more than 15
meters and cause per
-
sonal injury or damage
the cutting attachment
and property (e.g. parked
vehicles, windows).
FS 410 C, FS 410 C L
English
7
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 reduce the risk of injury, shut off the
engine before changing the cutting
attachment.
When using mowing heads
Use only the deflector with properly
mounted line limiting blade to ensure the
mowing lines are automatically trimmed
to the approved length.
To reduce the risk of injury, always turn
off the engine before adjusting the nylon
line of manually adjustable mowing
heads
Using the unit with over-long nylon
cutting lines reduces the motor's
operating speed. The clutch then slips
continuously and this causes
overheating and damage to important
components (e.g. clutch, polymer
housing components) – and this can
increase the risk of injury from the
cutting attachment rotating while the
engine is idling.
Using metal cutting attachments
STIHL recommends the use of original
STIHL metal cutting attachments. They
are specifically designed to match your
model and meet your performance
requirements.
Metal cutting attachments rotate at very
high speed. The forces that occur act on
the machine, the attachment and the
material being cut.
Sharpen metal cutting attachments
regularly as specified.
Unevenly sharpened metal cutting
attachments cause out-of-balance
which can impose extremely high loads
on the machine and increase the risk of
breakage.
Dull or improperly sharpened cutting
edges can put a higher load on the
cutting attachment and increase the risk
of injury from cracked or broken parts.
Inspect metal cutting attachments for
cracks or warping after every contact
with hard objects (e.g. stones, rocks,
pieces of metal). To reduce the risk of
injury, remove burrs and other visible
build-ups of material (use a file) because
they may become detached and be
thrown at high speed during operation.
If a rotating metal cutting attachment
makes contact with a rock or other solid
object there is a risk of sparking which
may cause easily combustible material
to catch fire under certain
circumstances. Dry plants and scrub are
also easily combustible, especially in hot
and dry weather conditions. If there is a
risk of fire, do not use metal cutting
attachments near combustible
materials, dry plants or scrub. Always
contact your local forest authority for
information on a possible fire risk.
Do not continue using or attempt to
repair damaged or cracked cutting
attachments by welding, straightening or
modifying the shape (out of balance).
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.
To reduce the above-mentioned risks
when using a metal cutting attachment,
never use a metal cutting attachment
with a diameter larger than specified. It
must not be too heavy. It must be
manufactured from materials of
adequate quality and its geometry must
be correct (shape, thickness).
To reduce the risk of injury, a metal
cutting attachment not manufactured by
STIHL must not be heavier, thicker,
have a different shape or a diameter
larger than the largest metal cutting
attachment approved by STIHL for this
power tool model.
Vibrations
Prolonged use of the power tool may
result in vibration-induced circulation
problems in the hands (whitefinger
disease).
No general recommendation can be
given for the length of usage because it
depends on several factors.
The period of usage is prolonged by:
Hand protection (wearing warm
gloves)
Work breaks
The gearbox becomes
hot during operation. To
reduce the risk of burn
injury, do not touch the
gearbox housing.
FS 410 C, FS 410 C L
English
8
The period of usage is shortened by:
Any personal tendency to suffer
from poor circulation (symptoms:
frequently cold fingers, tingling
sensations).
Low outside temperatures.
The force with which the handles
are held (a tight grip restricts
circulation).
Continual and regular users should
monitor closely the condition of their
hands and fingers. If any of the above
symptoms appear (e.g. tingling
sensation in fingers), seek medical
advice.
Maintenance and Repairs
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 machine. If you have
any questions in this respect, consult a
servicing dealer.
STIHL recommends the use of original
STIHL replacement parts. They are
specifically designed to match your
model and meet your performance
requirements.
To reduce the risk of injury from
unintentional engine startup, always
shut off the engine and disconnect the
spark plug boot before performing any
repairs, maintenance or cleaning work.
Exception: Carburetor and idle speed
adjustments.
Do not turn the engine over on the
starter with the spark plug boot or spark
plug removed since there is otherwise a
risk of fire from uncontained sparking.
To reduce the risk of fire, do not service
or store your machine near open flames.
Check the fuel filler cap for leaks at
regular intervals.
Use only a spark plug of the type
approved by STIHL and make sure it is
in good condition – see "Specifications".
Inspect the ignition lead (insulation in
good condition, secure connection).
Check the condition of the muffler.
To reduce the risk of fire and damage to
hearing, do not operate your machine if
the muffler is damaged or missing. –
Do not touch a hot muffler since burn
injury will result.
Vibration behavior is influenced by the
condition of the AV elements check the
AV elements at regular intervals.
Symbols on Deflectors
An arrow on the deflector shows the
correct direction of rotation of the cutting
attachments.
Some of the following symbols are
applied to the outside of the deflector to
indicate the approved combination of
cutting attachment and deflector.
Deflector may be used
with mowing heads.
Deflector may be used
with grass cutting blades.
Deflector may be used
with brush knives.
Deflector may be used
with shredder blades.
Deflector must not be
used with mowing heads.
Deflector must not be
used with grass cutting
blades.
Deflector must not be
used with brush knives.
FS 410 C, FS 410 C L
English
9
Harness
The harness is included with the
machine or available as a special
accessory.
N Use the harness.
N With the engine running, attach the
machine to the harness.
All cutting attachments must be used in
combination with a full harness with a
quick-release system.
Mowing Head with Nylon Line
Nylon line achieves a soft cut for edging
and trimming around trees, fence posts,
etc. – less risk of damaging tree bark.
The mowing head comes with an
instruction leaflet. Refill the mowing
head with nylon line as described in the
instruction leaflet.
WARNING
To reduce the risk of serious injury,
never use wire or metal-reinforced line in
place of the nylon line.
STIHL Polycut Mowing Head with
Polymer Blades
For mowing unobstructed edges of
meadows (without posts, fences, trees
or similar obstacles).
Check the wear limit marks!
If one of the wear limit marks on the
PolyCut mowing head is worn through
(arrow): Do not continue using the
mowing head. Install a new one. There
is otherwise a risk of injury from thrown
parts of the head.
It is important to follow the maintenance
instructions for the PolyCut mowing
head.
The PolyCut can also be equipped with
mowing line in place of the polymer
blades.
The mowing head comes with
instruction leaflets. Equip the mowing
head with polymers blades or nylon line
as described in the instruction leaflets.
WARNING
Never use wire in place of the nylon
mowing line – risk of injury.
Deflector must not be
used with shredder
blades.
Deflector must not be
used with circular saw
blades.
000BA015 KN
002BA396 KN
FS 410 C, FS 410 C L
English
10
Risk of Kickout (Blade Thrust) with Metal
Cutting Attachments
WARNING
The risk of kickout is greatest when the
black area of the rotating cutting
attachment comes into contact with a
solid object.
Grass Cutting Blade
Use for grass and weeds only – sweep
the brushcutter in an arc like a scythe.
WARNING
Improper use may damage the grass
cutting blade risk of injury from thrown
parts.
Resharpen the grass cutting blade
according to instructions when it has
dulled noticeably.
Brush Knife
For cutting matted grass, wild growth
and scrub and thinning young stands
with a stem diameter of no more than
2 cm – do not cut thicker stems risk of
accidents.
Use the brushcutter like a scythe (sweep
it to the right and left) at ground level
when cutting grass and thinning young
stands.
To cut wild growth and scrub, lower the
brush knife down onto the growth to
achieve a shredding effect – always
keep the cutting attachment below hip
level during this process.
Exercise extreme caution when using
this method of cutting. The higher the
cutting attachment is off the ground, the
greater the risk of injury from cuttings
being thrown sideways.
Warning! Improper use of a brush knife
may cause it to crack, chip or shatter –
risk of injury from thrown parts.
When using metal cut
-
ting attachments (grass
cutting blade, brush knife,
circular saw blade) there
is a risk of kickout when
the rotating blade comes
into contact with a solid
object such as a tree
trunk, branch, tree stump,
rock or similar. The
machine is thrown to the
right or to the rear –
opposite to the attach
-
ment's direction of
rotation.
002BA135 KN
000BA020 KN
002BA355 KN
002BA509 KN
FS 410 C, FS 410 C L
English
11
To reduce the risk of injury it is essential
to take the following precautions:
Avoid contact with stones, rocks,
pieces of metal and other solid
foreign objects.
Never cut wood or shrubs with a
stem diameter of more than 2 cm –
use a circular saw blade for such
work.
Inspect the brush knife at regular
short intervals for signs of damage.
Do not continue working with a
damaged brush knife.
Resharpen the brush knife regularly
and whenever it has dulled
noticeably, and have it balanced if
necessary (STIHL recommends a
STIHL servicing dealer).
Shredder Blade
Suitable for thinning and shredding
tough, matted grass and scrub.
To cut wild growth and scrub, lower the
shredder blade down onto the growth to
achieve a shredding effect – always
keep the cutting attachment below hip
level during this process.
Exercise extreme caution when using
this method of cutting. The higher the
cutting attachment is off the ground, the
greater the risk of injury from cuttings
being thrown sideways.
Warning! Improper use may damage the
shredder blade – risk of injury from
thrown parts.
To reduce the risk of injury it is essential
to take the following precautions:
Avoid contact with stones, rocks,
pieces of metal and other solid
foreign objects.
Never cut wood or shrubs with a
stem diameter of more than 2 cm –
use a circular saw blade for such
work.
Inspect the shredder blade at
regular short intervals for signs of
damage. Do not continue working
with a damaged shredder blade.
Resharpen the shredder blade
regularly and whenever it has dulled
noticeably, and have it balanced if
necessary (STIHL recommends a
STIHL servicing dealer).
Circular Saw Blade
Suitable for cutting shrubs and trees with
a maximum stem diameter of 7 cm.
Before starting the cut, accelerate the
engine up to full throttle. Perform cut
with uniform pressure.
Use circular saw blades only with a
matching limit stop of the correct
diameter.
WARNING
To reduce the risk of blade damage,
avoid contact with stones and the
ground. Resharpen the blade properly in
good time – dull teeth may result in the
blade cracking and shattering and
causing serious injury.
When felling, maintain a distance of at
least two tree lengths from the next
felling site.
Risk of kickout
The risk of kickout is highest in the black
area of the blade: Do not use this area of
the circular saw blade for cutting.
There is also a risk of kickout when
using the lighter shaded areas of the
blade: These areas of the blade should
only be used by experienced operators
with specialized training.
STIHL recommends that you use the
non-shaded area of the circular saw
blade. Always start the cut with this area
of the blade.
002BA210 KN
002BA449 KN
FS 410 C, FS 410 C L
English
12
Approved Combinations of Cutting Attachment, Deflector, Limit Stop and Harness
Cutting Attachment Deflector, Limit Stop Harness
7
9
681BA162 KN
1
4
8
5
10
11
12
6
16
17
18
19
21
3
2
13
14
15
20
FS 410 C, FS 410 C L
English
13
Approved Combinations
Select correct combination from the
table according to the cutting
attachment you intend to use.
WARNING
For safety reasons only the cutting
attachments and deflectors or limit stops
shown in each row of the table may be
used together. No other combinations
are permitted because of the risk of
accidents.
Cutting Attachments
Mowing heads
1 STIHL SuperCut 40-2
2 STIHL AutoCut 40-2
3 STIHL TrimCut 41-2
4 STIHL PolyCut 41-3
Metal cutting attachments
5 Grass cutting blade 230-4
(230 mm dia.)
6 Grass cutting blade 255-8
(255 mm dia.)
7 Grass cutting blade 250-40 Spezial
(250 mm dia.)
8 Brush knife 305-2 Spezial
(305 mm dia.)
9 Brush knife 300-3
(300 mm dia.)
10 Shredder blade 270-2
(270 mm dia.)
11 Scratcher tooth circular saw blade
200
(200 mm dia.)
12 Chisel tooth circular saw blade 200
(200 mm dia.)
13 Scratcher tooth circular saw blade
225
(225 mm dia.)
14 Chisel tooth circular saw blade 225
(225 mm dia.)
15 Carbide tipped circular saw blade
225
(225 mm dia.)
WARNING
Non-metal grass cutting blades, brush
knives, shredder blades and circular
saw blades are not approved.
Deflectors, Limit Stops
16 Deflector for mowing heads
17 Deflector for metal cutting
attachments, items 5 to 9
18 Deflector for shredder blade
19 Limit stop for circular saw blades,
items 11 and 12
20 Limit stop for circular saw blades,
items 13 and 15
Harness
21 Full harness must be used
Mounting the bike handle with swiveling
handle support
The machine is supplied with the clamp
moldings (1) mounted to the
handlebar (2).
Mounting the control handle
N Take out the screw (3) and remove
the nut (4) from the control
handle (5).
Mounting the Bike Handle
2
1
6BA018 KN
3
4
5
002BA352 KN
FS 410 C, FS 410 C L
English
14
N Line up the control handle (5)
relative to the handlebar (2): The
throttle trigger (6) must point toward
the gearbox and the clamp
screw (7) toward the engine.
N Holding the control handle (5) in
that position, push it on to the end of
the handlebar (2) and line up the
holes (8).
N Fit the nut (4) in the control
handle (5), insert the screw (3) and
tighten it down firmly.
Assembling the handle support
Assembly of the swivelling handle
support involves equipping the clamp
moldings with a spring and mounting
them on the handle support.
N Use the spring (9) from the parts kit
supplied with the machine.
N Place the spring (9) in the lower
clamp molding (10).
N Position the clamp moldings (1) with
handlebar (2) on the handle
support (11).
7
5
6BA002 KN
6
2
8
6BA019 KN
2
8
3
5
4
6BA001 KN
9
10
11
1
6BA020 KN
2
A
FS 410 C, FS 410 C L
English
15
N Raise the grip of the wing screw (7)
to the upright position.
N Turn the wing screw
counterclockwise as far as stop.
N Push the wing screw into the handle
support as far as stop and then
screw it down – but do not finally
tighten yet.
N Adjust the handlebar (2) so that
distance A is no more than 15 cm.
N Line up the handlebar at a right
angle to the drive tube.
N Turn the wing screw clockwise as
far as stop.
N Fold the grip of the wing screw down
so that it is flush.
Adjusting the handlebar
Opening the wing screw
N Raise the grip of the wing screw to
the upright position.
N Turn the wing screw
counterclockwise until the handle
support can be moved.
N Move the handlebar to the required
position.
Closing the wing screw
N Turn the wing screw clockwise as
far as stop.
N Fold the grip of the wing screw down
so that it is flush.
6BA003 KN
2
7
6BA005 KN
6BA007 KN
6BA005 KN
6BA006 KN
FS 410 C, FS 410 C L
English
16
Swiveling the handlebar
Transport position
N Loosen the wing screw (7) and
unscrew it until the handlebar (2)
can be turned clockwise.
N Turn the handlebar 90° and then
swing the handles down.
N Tighten down the wing screw (7)
firmly.
Working position
N Reverse the sequence described
above to swing the handles up and
turn the handlebar
counterclockwise.
Correct adjustment of the throttle cable
is a precondition for correct operation of
the machine in all modes, from starting
to full throttle.
It may be necessary to readjust the
throttle cable after assembling the
machine or after a prolonged period of
operation.
You can check and adjust of throttle
cable – see "Inspection and
Maintenance by User".
Use the Right Deflector
WARNING
Deflector (1) is approved for mowing
heads only and must therefore be
mounted before fitting a mowing head.
WARNING
Deflector (2) is approved for grass
cutting blades and brush knives only and
must therefore be mounted before fitting
a grass cutting blade or brush knife.
Adjusting the Throttle Cable Mounting the Deflector
1
002BA401 KN
2
002BA402 KN
FS 410 C, FS 410 C L
English
17
WARNING
Deflector (3) is approved for shredder
blades only and must therefore be
mounted before fitting a shredder blade.
WARNING
The limit stop (4) is approved as a
deflector for circular saw blades only
and must therefore be mounted before
fitting a circular saw blade. It is also
necessary to change the guard ring (5),
see "Mounting the Cutting Attachment" /
"Mounting Circular Saw Blades".
Mounting the Deflector
Deflectors (1 to 4) are mounted to the
gearbox in the same way.
N Remove dirt from joints on gearbox
and defelector – make sure that no
dirt gets into the screw holes in the
gearbox.
N Place the deflector on the
gearbox (6).
N Insert the screws (7) and tighten
them down firmly.
Placing power tool on the ground
N Shut off the engine.
N Lay your power tool on its back so
that the cutting attachment
mounting face is pointing up.
Use the Right Guard Ring
Your power tool comes standard with a
guard ring.
The guard ring is also available as a
special accessory.
The guard ring must be mounted with
particular care. Have this work
performed by your servicing dealer.
STIHL recommends a STIHL servicing
dealer.
3
002BA403 KN
4
002BA404 KN
5
7
6
002BA405 KN
Mounting the Cutting
Attachment
002BA406 KN
FS 410 C, FS 410 C L
English
18
Guard ring for mowing applications
Always fit guard ring (1) when using
mowing heads
grass cutting blades
brush knives
shredder blades
to ensure optimum protection against
grass cuttings.
Guard ring for sawing applications
Fit guard ring (2) only when you use
circular saw blades.
Mounting the Thrust Plate and Guard
Washer
N Fit the thrust plate (1) and guard
washer (2) on the shaft (3).
NOTICE
The thrust plate (1) on the gearbox is
necessary for mounting all cutting
attachments.
NOTICE
The guard washer (2) is required for
mounting
mowing heads
grass cutting blades
brush knives
shredder blades
to the gearbox. The guard washer is not
required for mounting circular saw
blades.
Checking the Thrust Plate
The thrust plate consists of the thrust
plate body (1) to which a captive guard
washer (2) is fitted.
WARNING
Never use a thrust plate without the
guard washer. Always replace a thrust
plate if the guard washer is missing.
Cleaning Gearbox Mounting Hardware
for Cutting Attachment
NOTICE
Check inside of guard ring (4) and area
around it for dirt at regular intervals, or
when you change the cutting
attachment, and clean if necessary as
follows:
002BA407 KN
1
2
3
4
1
2
1
681BA196 KN
2
002BA407 KN
1
2
3
4
FS 410 C, FS 410 C L
English
19
N Pull the guard washer (1) and thrust
plate (2) off the shaft.
N Thoroughly clean the guard ring,
shaft, thrust plate and guard washer
– do not remove the guard ring.
Blocking the Shaft
The output shaft (1) must be blocked
with the stop pin (2) to mount or remove
cutting attachments. The stop pin is
included with the machine and is
available as a special accessory.
N Insert the stop pin (2) in the bore (3)
in the gearbox as far as stop, apply
slight pressure.
N Rotate shaft or cutting attachment
until the stop pin slips into position
and blocks the shaft.
Mounting the cutting attachment.
WARNING
Use a deflector that matches the cutting
attachment – see "Mounting the
Deflector".
Fitting Mowing Head with Screw
Mounting
Keep the instruction leaflet for the
mowing head in a safe place.
N Screw the mowing head
counterclockwise on to the shaft (1)
as far as stop.
N Block the shaft.
N Tighten down the mowing head
firmly.
NOTICE
Remove the tool used to block the shaft.
Removing the Mowing Head
N Block the shaft.
N Unscrew the mowing head
clockwise.
Removing and Installing Metal Cutting
Attachments
Keep the leaflet and packaging of the
metal cutting attachment in a safe place.
WARNING
Wear protective gloves to reduce the
risk of direct contact with the sharp
cutting edges.
Mount only one metal cutting
attachment.
Mounting Grass Cutting Blades, Brush
Knife
Note on new machines that come
standard with a mowing head only: A
"metal mowing attachment mounting kit"
is required to mount a grass cutting
blade or brush knife. Kits are available
from your servicing dealer.
2
3
1
0812BA021 KN
2
1
002BA385 KN
FS 410 C, FS 410 C L
English
20
Check direction of rotation of cutting
attachment
Cutting attachments with 2, 3 or 4 teeth
(1, 4, 5) may point in either direction –
these cutting attachments must be
turned over regularly to help avoid one-
sided wear.
The cutting edges of the grass cutting
blades 255
-
8 (2) and 250
-
40 Spezial (3)
must point clockwise.
N Use guard ring for mowing
attachments.
N Place the cutting attachment (1) in
position.
WARNING
Collar (a) must locate in the cutting
attachment's mounting hole (b).
Securing the cutting attachment
N Fit the thrust washer (2) – convex
side must face up.
N Fit the rider plate (3).
N Block the shaft.
N Fit the nut (4) counterclockwise and
tighten it down firmly.
WARNING
If the mounting nut has become too
loose, fit a new one.
NOTICE
Remove the tool used to block the shaft.
Removing the cutting attachment
N Block the shaft.
N Unscrew the mounting nut
clockwise.
N Pull the cutting attachment with its
mounting hardware off the gearbox.
Mounting Shredder Blade 270-2
Note on new machines that come
standard with a mowing head only: In
addition to the "shredder blade mounting
kit", a "shredder blade retrofit kit" is
required to mount a shredder blade. Kits
are available from your servicing dealer.
N Use guard ring for mowing
attachments.
2
3
1
4
002BA409 KN
b
a
FS 410 C, FS 410 C L
English
21
N Place the shredder blade (1) in
position – the cutting edges must
point upwards.
WARNING
Collar (a) must locate in the cutting
attachment's mounting hole (b).
Securing the cutting attachment
N Fit the thrust washer (2) – convex
side must face up.
N Fit the shredder blade guard ring (3)
– opening must face up.
N Block the shaft.
N Fit the nut (4) counterclockwise and
tighten it down firmly.
WARNING
If the mounting nut has become too
loose, fit a new one.
NOTICE
Remove the tool used to block the shaft.
Removing the cutting attachment
N Block the shaft.
N Unscrew the mounting nut
clockwise.
N Pull the cutting attachment with its
mounting hardware off the gearbox.
Mounting Circular Saw Blades
A limit stop kit, which includes a limit
stop and a guard ring for circular saw
blades, is available as a special
accessory for mounting circular saw
blades.
Note on new machines that come
standard with a mowing head only:
Further mounting hardware is necessary
for a circular saw blade. It is available
from your servicing dealer.
Change the guard ring.
Recommendation: The guard ring must
be mounted with particular care. Have
this work performed by your servicing
dealer. STIHL recommends a STIHL
servicing dealer.
N Remove the guard washer (1) and
thrust plate (2).
N Remove the guard ring (3) for
mowing attachments.
N Keep the guard washer and guard
ring in a safe place for future use.
N Fit the guard ring (4) for saw blades.
N Slip the thrust plate (2) over the
shaft.
N Fit the limit stop (5) for circular saw
blades.
NOTICE
Do not use the guard washer (1) with
circular saw blades.
002BA490 KN
2
1
3
5
002BA491 KN
4
2
FS 410 C, FS 410 C L
English
22
Check direction of rotation of cutting
attachment
Cutting edges of circular saw blades
must point clockwise.
N Place the cutting attachment (1) in
position.
WARNING
Collar (a) must locate in the cutting
attachment's mounting hole (b).
Securing the cutting attachment
N Fit the thrust washer (2) – convex
side must face up.
N Fit the rider plate (3).
A rider plate (3) for sawing applications
is available as a special accessory. It
allows the full depth of cut of the saw
blade to be used.
N Block the shaft.
N Fit the nut (4) counterclockwise and
tighten it down firmly.
WARNING
If the mounting nut has become too
loose, fit a new one.
NOTICE
Remove the tool used to block the shaft.
Removing the cutting attachment
N Block the shaft.
N Unscrew the mounting nut
clockwise.
N Pull the cutting attachment with its
mounting hardware off the gearbox.
Your engine requires a mixture of
gasoline and engine oil.
WARNING
For health reasons, avoid direct skin
contact with gasoline and avoid inhaling
gasoline vapor.
STIHL MotoMix
STIHL recommends the use of STIHL
MotoMix. This ready-to-use fuel mix
contains no benzol or lead, has a high
octane rating and ensures that you
always use the right mix ratio.
STIHL MotoMix uses STIHL HP Ultra
two-stroke engine oil for an extra long
engine life.
MotoMix is not available in all markets.
Mixing Fuel
NOTICE
Unsuitable fuels or lubricants or mix
ratios other than those specified may
result in serious damage to the engine.
Poor quality gasoline or engine oil may
damage the engine, sealing rings, hoses
and the fuel tank.
Gasoline
Use only high-quality brand-name
gasoline with a minimum octane rating
of 90 – leaded or unleaded.
681BA165 KN
Fuel
FS 410 C, FS 410 C L
English
23
If your machine is equipped with a
catalytic converter, you must use
unleaded gasoline.
NOTICE
A few tankfuls of leaded gasoline will
greatly reduce the efficiency of the
catalytic converter.
Gasoline with an ethanol content of
more than 10% can cause running
problems in engines with a manually
adjustable carburetor and should not be
used in such engines.
Engines equipped with M-Tronic deliver
full power when run on gasoline with an
ethanol content of up to 25% (E25).
Engine oil
Use only high-quality two-stroke engine
oil – preferably STIHL HP, HP Super or
HP Ultra, which are specially formulated
for use in STIHL engines. HP Ultra
guarantees high performance and a
long engine life.
These engine oils are not available in all
markets.
Use only STIHL 50:1 two-stroke engine
oil for the fuel mix in models with a
catalytic converter.
Mix Ratio
STIHL 50:1 two-stroke engine oil: 50
parts gasoline to 1 part oil
Examples
N Use a canister approved for storing
fuel. Pour oil into canister first, then
add gasoline and mix thoroughly.
Storing Fuel
Store fuel only in approved safety-type
fuel canisters in a dry, cool and safe
location protected from light and the sun.
Fuel mix ages – only mix sufficient fuel
for a few weeks work. Do not store fuel
mix for longer than 30 days. Exposure to
light, the sun, low or high temperatures
can quickly make the fuel mix unusable.
STIHL MotoMix may be stored for up to
2 years without any problems.
N Thoroughly shake the mixture in the
canister before fueling your
machine.
WARNING
Pressure may build up in the canister –
open it carefully.
N Clean the fuel tank and canister
from time to time.
Dispose of remaining fuel and cleaning
fluid properly in accordance with local
regulations and environmental
requirements.
Gasoline STIHL engine oil 50:1
Liters Liters (ml)
10.02(20)
5 0.10 (100)
10 0.20 (200)
15 0.30 (300)
20 0.40 (400)
25 0.50 (500)
FS 410 C, FS 410 C L
English
24
Fuel Filler Cap
WARNING
When fueling on a slope, always position
the machine with the filler cap facing
uphill.
N Place the machine on level ground
so that the filler cap is facing up.
N Before fueling, clean the filler cap
and the area around it to ensure that
no dirt falls into the tank.
Opening the filler cap
N Turn the cap counterclockwise until
it can be removed from the tank
opening.
N Remove the cap.
Filling Up with Fuel
Take care not to spill fuel while fueling
and do not overfill the tank.
STIHL recommends you use the STIHL
filler nozzle for fuel (special accessory).
N Fill up with fuel.
Closing the filler cap
N Place the cap in the opening.
N Turn the cap clockwise as far as
stop and tighten it down as firmly as
possible by hand.
Fitting the full harness is described in
detail in the instruction sheet supplied.
N Put on the full harness (1).
N Adjust the length of the strap so that
the carabiner (2) is about a hand’s
width below your right hip.
N Attach the spring hook to the
machine's perforated strip (3).
Find the right attachment point for the
cutting attachment you are using – see
"Balancing the Brushcutter".
Fueling
2709BA003 KN
2709BA004 KN
Fitting the Full Harness
3
002BA411 KN
1
2
FS 410 C, FS 410 C L
English
25
The machine will balance differently
depending on the cutting attachment
mounted.
N Let the machine swing on the
harness until it stops moving –
change the connection point if
necessary
Hanging positions
Mowing heads, grass cutting blades,
brush knives and shredder blades
should rest lightly on the ground.
Circular saw blades should "hover"
approx. 20 cm above the ground.
Putting down the machine in an
emergency
WARNING
As soon as it becomes apparent that a
dangerous situation is developing, the
machine must be put down quickly.
Practice setting down the machine
quickly. In order to avoid damage, when
practicing, do not throw the machine on
the ground.
Controls
1 Throttle trigger lockout
2 Throttle trigger
3 Stop switch with Run and Stop
positions. Depress the stop switch
() to switch off the ignition.
Function of stop switch and ignition
system
The stop switch is normally in the Run
position, i.e. when it is not depressed:
The ignition is switched on – the engine
is ready to start. Operate the stop switch
to switch off the ignition. The ignition is
switched on again automatically after
the engine stops.
Balancing the Machine
6BA009 KN
6BA010 KN
Starting / Stopping the
Engine
1
002BA483 KN
2
3
FS 410 C, FS 410 C L
English
26
Start the engine.
N Press the manual fuel pump
bulb (4) at least five times – even if
the bulb is filled with fuel.
Cold engine (cold start)
N Press in the outer edge (arrows) of
the choke knob (5) and then turn it
to g .
Also use this setting if the engine has
been running but is still cold.
Hot engine (hot start)
The engine has reached normal
operating temperature, then shut down
and restarted after more than 5 minutes.
N Press in the outer edge (arrows) of
the choke knob (5) and then turn it
to <.
Cranking
N Place the unit on the ground: It must
rest securely on the engine's guard
plate and the deflector.
N If fitted: Remove the transport guard
from the cutting attachment.
To reduce the risk of accidents, check
that the cutting attachment is not
touching the ground of any other
obstacles.
N Make sure you have a firm footing,
either standing, stooping or
kneeling.
N Hold the unit firmly on the ground
with your left hand and press down
– do not touch the throttle trigger or
lockout lever – your thumb should
be under the fan housing.
NOTICE
Do not stand or kneel on the drive tube.
N Hold the starter grip with your right
hand.
Alternative method of starting:
Engine warm and the machine hanging
from the harness.
N Hold the machine firmly with your
right hand on the drive tube, handle
support or handlebar.
N With the machine behind you, press
it against the left side of your body.
N Hold the starter grip with your left
hand.
Both methods:
N Pull the starter grip steadily.
9926BA008 KN
5
6BA012 KN
6BA013 KN
FS 410 C, FS 410 C L
English
27
NOTICE
Do not pull out the starter rope all the
way – it might otherwise break.
N Do not let the starter grip snap back.
Guide it slowly back into the housing
so that the starter rope can rewind
properly.
N Continue cranking until engine runs.
As soon as the engine runs
N Press down the throttle trigger
lockout and open the throttle – the
choke knob moves to the run
position F. After a cold start, warm
up the engine by opening the
throttle several times.
WARNING
Make sure the carburetor is correctly
adjusted. The cutting attachment must
not rotate when the engine is idling.
Your machine is now ready for
operation.
Stopping the Engine
N Depress the momentary contact
stop switch – the engine stops –
release the stop switch – it springs
back to the run position.
Other Hints on Starting
At very low outside temperatures
N Set the engine to winter operation if
necessary, see "Winter Operation".
N If your machine is very cold (frost or
ice on machine), start the engine
and keep it at a high idle speed
(cutting attachment rotates) until it
reaches normal operating
temperature.
Engine stalls in cold start position g or
under acceleration
N Move the choke lever to < and
continue cranking until the engine
runs.
Engine does not start in hot start
position <
N Move the choke lever to g and
continue cranking until the engine
runs.
If the engine does not start
N Check that all settings are correct.
N Check that there is fuel in the tank
and refuel if necessary.
N Check that the spark plug boot is
properly connected.
N Repeat the starting procedure.
Fuel tank run until completely dry
Recommendation: Carry out the
following steps irrespective of the
engine's operating condition before the
tank was run dry.
N Set the choke lever to g.
N Go to section on "Starting the
Engine" and re-start the engine as
described for a cold engine.
6BA014 KN
FS 410 C, FS 410 C L
English
28
During break-in period
A factory-new machine should not be
run at high revs (full throttle off load) for
the first three tank fillings. This avoids
unnecessary high loads during the
break-in period. As all moving parts
have to bed in during the break-in
period, the frictional resistances in the
engine are greater during this period.
The engine develops its maximum
power after about 5 to 15 tank fillings.
During Operation
After a long period of full throttle
operation, allow the engine to run for a
short while at idle speed so that engine
heat can be dissipated by the flow of
cooling air. This protects engine-
mounted components (ignition,
carburetor) from thermal overload.
After Finishing Work
Storing for a short period: Wait for the
engine to cool down. Empty the fuel tank
and keep the machine in a dry place,
well away from sources of ignition, until
you need it again. For longer out-of-
service periods – see "Storing the
Machine".
General Information
The filter has a very long service life.
Do not remove the filter cover or replace
the air filter as long as there is no
noticeable loss of power.
Dirty air filters reduce engine power,
increase fuel consumption and make
starting more difficult.
Replacing the Air Filter
Only if there is a noticeable loss of
engine power
N Set the choke lever to g.
N Loosen the screws (1).
N Remove the filter cover (2).
N Clean away loose dirt from around
the filter (3) and inside the filter
cover.
The air filter (3) is a pleated paper filter
element.
N Remove and check the filter
element (3) – replace if paper or
frame is dirty or damaged.
N Unpack the new filter.
NOTICE
Do not bend or twist the filter before
installation as it might otherwise be
damaged – do not use damaged filters.
N Fit the filter in the filter housing.
N Fit the filter cover.
Use only high quality air filters to ensure
the engine is protected from abrasive
dust.
STIHL recommends you use only
original STIHL air filters. The high quality
standard of these parts guarantees
trouble-free operation, a long engine life
and very long filter service lives.
Operating Instructions Air filter
9926BA061 KN
1
3
9926BA062 KN
2
FS 410 C, FS 410 C L
English
29
Filter Element for Winter Operation
Maintenance and care of the special
filter element for winter operation are
described in the chapter on "Winter
Operation".
The carburetor has been set at the
factory to provide an optimum fuel-air
mixture under most operating
conditions.
Adjusting idle speed
Engine stops while idling
N Turn the idle speed screw (LA)
slowly clockwise until the engine
runs smoothly.
Cutting tool rotates when engine is idling
N Turn the idle speed screw (LA)
slowly counterclockwise until the
cutting attachment stops moving.
At temperatures below +10°C
Preheating the carburetor
Repositioning a shutter allows heated air
to be drawn in from around the cylinder
and mixed with cold air – this helps
prevent carburetor icing.
An arrow (1) on the shroud indicates the
setting of the shutter (2) for summer or
winter operation. Meaning of symbols:
"Sun" = summer operation
"Snowflake" = winter operation
Adjusting the Carburetor
9926BA015 KN
H
L
LA
Winter Operation
2
1
9926BA016 KN
FS 410 C, FS 410 C L
English
30
N Remove the screw (3) from the
shutter.
N Pull the shutter (2) out of the
shroud.
N Rotate the shutter (2) from the
summer position to the winter
position and refit it.
N Secure the shutter in position with
the screw (3).
At temperatures between +10°C and
+20°C
The machine can normally be operated
in this temperature range with the
shutter (2) in the summer position.
Change the position of the shutter if
necessary.
At temperatures above +20°C
N Always return the shutter (2) to the
summer position.
NOTICE
Do not operate the machine in the winter
position at temperatures above +20°C
because there is otherwise a risk of
engine running problems and
overheating.
At temperatures below –10°C
In extreme wintry conditions
Temperatures below –10°C
Powder or drifting snow
it is advisable to use the optional "cover
plate kit".
Two different cover plate kits are
available to suit the different tank caps.
The cover plate kits contain the following
parts for converting the power tool:
4 Cover plate partially blanks off the
slots in the starter housing
5 Synthetic fabric filter element for the
air filter
Instructions for converting the
machine
For machines with tank cap with hinged
grip:
O-ring for the tank filler cap
After installing the cover plate kit:
N Set the shutter (2) to the winter
position.
At temperatures above –10°C
N Remove the parts of the cover plate
kit and refit the standard parts for
summer operation.
Note for machines with tank cap with
hinged grip: The O-ring supplied with the
cover plate kit can be left on the
machine's tank cap.
Depending on the ambient temperature:
N Set the shutter (2) to the summer or
winter position.
2
9926BA018 KN
4
5
9926BA063 KN
2
FS 410 C, FS 410 C L
English
31
Cleaning the Air Filters
N Loosen filter cover mounting
screws.
N Remove the filter cover.
N Clean away loose dirt from around
the filter (5) and inside the filter
cover.
N Knock the filter (5) out on the palm
of your hand or blow it clear with
compressed air from the inside
outwards.
In case of stubborn dirt or sticky filter
fabric:
N Wash the filter in a clean, non-
flammable solution (e.g. warm
soapy water) and then dry.
Always replace a damaged filter.
N If the engine is down on power,
difficult to start or runs poorly at idle
speed, first check the spark plug.
N Fit a new spark plug after about 100
operating hours – or sooner if the
electrodes are badly eroded. Install
only suppressed spark plugs of the
type approved by STIHL – see
"Specifications".
Removing the Spark Plug
N Rotate the screw (1) in the cap (2)
until the screw head projects from it.
N Lift the front of the cap (2) and push
it to the rear to disengage.
N Leave the cap to one side.
N Pull off the spark plug boot (3).
N Unscrew the spark plug.
Checking the spark plug
N Clean dirty spark plug.
N Check electrode gap (A) and
readjust if necessary – see
"Specifications".
N Rectify the problems which have
caused fouling of the spark plug.
Possible causes are:
Too much oil in fuel mix.
Dirty air filter.
Unfavorable running conditions.
WARNING
If the spark plug comes with a
detachable adapter nut (1), screw the
adapter onto the thread and tighten it
down firmly to reduce the risk of arcing
and fire.
Spark Plug
1
9926BA020 KN
3
9926BA021 KN
000BA039 KN
A
1
000BA045 KN
FS 410 C, FS 410 C L
English
32
Installing the Spark Plug
N Screw the spark plug into the
cylinder.
N Press the spark plug boot firmly
onto the spark plug.
N Fit the cap (1) on the shroud from
the rear and push the lug (2) into the
opening (3) in the shroud at the
same time.
N Swing the cap forwards onto the
shroud, insert and tighten down the
screw (4) firmly.
If engine running behavior is still
unsatisfactory after the air filter has been
serviced and the carburetor and throttle
cable have been adjusted correctly, the
cause may also be in the muffler.
Have the muffler checked for
contamination (coking) by a servicing
dealer!
STIHL recommends that maintenance
and repair work be carried out only by
authorized STIHL dealers.
To help prolong the wear life of the
starter rope, observe the following
points:
N Pull the starter rope only in the
direction specified.
N Do not pull the rope over the edge of
the guide bushing.
N Do not pull out the rope more than
specified.
N Do not allow the starter grip to snap
back, guide it back into the housing
slowly – see chapter on "Starting /
Stopping the Engine."
Have a damaged starter rope replaced
by your dealer before it breaks
completely. STIHL recommends that
you have servicing and repair work
carried out exclusively by an authorized
STIHL servicing dealer.
Engine Running Behavior Rewind Starter
FS 410 C, FS 410 C L
English
33
If the machine is to remain out of use for
approx. 3 months or more
N Drain and clean the fuel tank in a
well ventilated place
N Dispose of fuel in accordance with
the regulations and having regard
for the environment
N Run the engine until the carburetor
is dry. This helps to prevent the
carburetor diaphragms sticking
together.
N Remove, clean and inspect the
cutting attachment. Treat metal
cutting attachments with protective
oil.
N Thoroughly clean the machine
N Store the machine in a dry and safe
place, out of the reach of children
and other unauthorized users
N Use a sharpening file (see "Special
Accessories") to sharpen dull
cutting attachments. In case of
more serious wear or nicks:
Resharpen with a grinder or have
the work done by a dealer – STIHL
recommends a STIHL servicing
dealer.
N Sharpen frequently, take away as
little metal as possible two or three
strokes of the file are usually
enough.
N Resharpen the teeth (1) uniformly
do not alter the contour of the parent
blade (2) in any way.
See cutting attachment packaging for
additional sharpening instructions. Keep
the packaging for future reference.
Balancing
N After resharpening about 5 times,
check the cutting attachment for
out-of-balance on a STIHL balancer
– see “Special Accessories” – or
have it checked by a dealer and re-
balanced as necessary – STIHL
recommends a STIHL servicing
dealer.
Storing the Machine Sharpening Metal Cutting
Blades
2
1
002BA083 KN
2
1
2
2
1
1
FS 410 C, FS 410 C L
English
34
Placing power tool on the ground
N Shut off the engine.
N Lay your power tool on its back so
that the cutting attachment
mounting face is pointing up.
Replacing nylon line
Always check the mowing head for signs
of wear before replacing the nylon line.
WARNING
If there are signs of serious wear,
replace the complete mowing head.
The nylon mowing line is referred to as
"nylon line" or "line" in the following.
The mowing head is supplied with
illustrated instructions for replacing the
nylon line. Keep the instructions for the
mowing head in a safe place.
N If necessary, remove the mowing
head.
Adjusting nylon line
STIHL SuperCut
Fresh line is advanced automatically if
the remaining line is at least 6 cm
(2 1/2 in) long. The blade on the
deflector trims overlong lines to the
correct length.
STIHL AutoCut
N With the engine running, hold the
rotating mowing head above the
grass surface.
N Tap it on the ground once – fresh
line is advanced and the blade on
the deflector trims it to the right
length.
Fresh line is advanced every time the
mowing head is tapped on the ground.
For this reason observe the mowing
head's cutting performance during
operation. If the mowing head is tapped
on the ground too often, the line limiter
blade will unnecessarily cut off unused
lengths of nylon line.
Line feed operates only if both lines are
still at least 2.5cm(1in) long.
STIHL TrimCut
WARNING
To reduce the risk of injury, always shut
off the engine before adjusting the nylon
line by hand.
N Pull the spool up rotate it about 1/6
turn counterclockwise until it
engages – and allow it to spring
back.
N Pull ends of the lines outward.
Repeat the above procedure as
necessary until both lines reach the
limiter blade on the deflector.
Rotating the spool from one stop to the
next advances about 4 cm (1 1/2 in) of
fresh line.
Replacing nylon line
STIHL PolyCut
A length of nylon line can be fitted to the
PolyCut in place of the cutting blades.
WARNING
To reduce the risk of injury, always shut
off the engine before refilling the mowing
head.
N Fit nylon line in mowing head as
described in the instructions
supplied.
Replacing Cutting Blades
STIHL PolyCut
Always check the mowing head for signs
of wear before installing new cutting
blades.
WARNING
If there are signs of serious wear,
replace the complete mowing head.
The thermoplastic cutting blades are
referred to as "blades" in the following.
The mowing head is supplied with
illustrated instructions for replacing the
blades. Keep the instructions for the
mowing head in a safe place.
Maintaining the Mowing
Head
FS 410 C, FS 410 C L
English
35
WARNING
To reduce the risk of injury, always shut
off the engine before installing the
blades.
N Remove the mowing head.
N Replace blades as shown in the
illustrated instructions.
N Mount the mowing head on the
machine.
Clamped Area of Handlebar
N Check the freedom of movement of
the handlebar (1) in the clamp
moldings (2) at regular intervals.
Handlebar is difficult to move
N Loosen the wing screw (3) just
enough for the handlebar to be
moved.
N Push the handlebar (1) sideways
out of the clamp.
N Soak a cloth in a clean, non-
flammable cleaning solution – do
not use cleaning agent containing
oil or grease.
N Thoroughly clean the clamp area of
the handlebar with the cloth and
cleaning solution.
N Line up the handlebar and secure it
in position with the wing screw.
Handlebar cannot be clamped firmly in
position
N Release handlebar in clamp as
described under "Handlebar is
difficult to move".
N Degrease clamp area on handlebar
and in clamp moldings.
N Line up the handlebar and secure it
in position with the wing screw.
Adjusting the Throttle Cable
The throttle cable can be adjusted only
when the machine is properly
assembled. The control handle must be
in the normal operating position.
If the following adjustments do not
produce the required result, have your
servicing dealer repair the machine.
STIHL recommends a STIHL servicing
dealer.
Check adjustment of throttle cable.
Error: Engine speed increases when
only the throttle trigger is depressed.
Inspection and Maintenance
by User
1
2
6BA021 KN
3
6BA022 KN
1
FS 410 C, FS 410 C L
English
36
N Start the engine.
N Depress the throttle trigger (2) – do
not press down the throttle trigger
lockout (1).
If the engine speed increases or if the
cutting attachment rotates, the throttle
cable has to be adjusted.
N Shut down the engine.
Adjust the throttle cable
N Depress the throttle trigger lockout
(1) and the throttle trigger (2) as far
as stop and hold them in that
position.
Apply only sufficient pressure to hold the
levers against their stops.
N Rotate screw in throttle trigger 1/2
turn counterclockwise.
N Release the throttle trigger and
throttle trigger lockout.
N Start the engine and check the
adjustment.
N Shut down the engine and repeat
adjustment if necessary.
Maintenance Work
STIHL recommends that you have
servicing and repair work carried out
exclusively by an authorized STIHL
servicing dealer.
Fuel Pickup Body in Tank
N Check the pickup body in the fuel
tank every year and have it replaced
if necessary.
The pickup body should be positioned in
the area of the tank shown in the
illustration.
1
6BA025 KN
2
Inspections and Maintenance
by Dealer
2709BA022 KN
FS 410 C, FS 410 C L
English
37
Anti-vibration elements
Four anti-vibration elements (arrows)
are installed between the powerhead
and the drive tube. Have the system
checked if there is a noticeable increase
in vibrations.
Both vibration gaps (arrows) are preset
to the same width at the factory. If the
size of the two vibration gaps varies
greatly and/or one of them closes up,
have your servicing dealer repair the
anti-vibration system.
Wear Guard on AV Housing
There is an easily replaced wear guard
on the side of the anti-vibration housing.
The guard may wear as a result of
rubbing against the side plate of the
harness during operation and should be
replaced if necessary.
FS 410 C, FS 410 C L
English
38
Maintenance and Care
The following intervals apply to normal operating conditions only. If your daily work
-
ing time is longer or operating conditions are difficult (very dusty work area, etc.),
shorten the specified intervals accordingly.
before starting work
after finishing work or daily
after each refueling stop
weekly
monthly
every 12 months
if problem
if damaged
as required
Complete machine
Visual inspection (condition, leaks) XX
Clean X
Replace any damaged parts XX
Control handle Check operation XX
Air filter, paper filter
Visual inspection XX
Replace
1)
X
Air filter, synthetic fabric filter
Visual Inspection XX
Clean X
Replace XX
Fuel tank Clean XXX
Manual fuel pump (if fitted)
Check X
Repair
2)
X
Pickup body in fuel tank
Check
2)
X
Replace
2)
XXX
Carburetor
Check idle adjustment – the cutting
attachment must not rotate
XX
Adjust idle speed X
Spark plug
Adjust electrode gap X
Replace after every 100 operating hours
Cooling inlets
Visual inspection X
Clean X
Cylinder fins Clean
2)
X
Exhaust port
Decoke after first 139 hours of opera
-
tion, then every 150 hours of operation
2)
X
FS 410 C, FS 410 C L
English
39
All accessible screws and nuts (not adjust
-
ing screws)
Retighten
3)
X
Anti-vibration elements
Visual inspection
4)
XXX
Replace
2)
X
Cutting attachment
Visual inspection XX
Replace X
Check tightness XX
Metal cutting attachment Sharpen XX
Safety labels Replace X
1)
Only if there is a noticeable loss of engine power
2)
STIHL recommends that this work be done by a STIHL servicing dealer
3)
Tighten down the muffler mounting screws firmly after first 10 to 20 hours of operation.
4)
see chapter "Inspections and Maintenance by Dealer", section "Antivibration Elements"
The following intervals apply to normal operating conditions only. If your daily work
-
ing time is longer or operating conditions are difficult (very dusty work area, etc.),
shorten the specified intervals accordingly.
before starting work
after finishing work or daily
after each refueling stop
weekly
monthly
every 12 months
if problem
if damaged
as required
FS 410 C, FS 410 C L
English
40
Observing the instructions in this manual
helps reduce the risk of unnecessary
wear and damage to the power tool.
The power tool must be operated,
maintained and stored with the due care
and attention described in this owner's
manual.
The user is responsible for all damage
caused by non-observance of the safety
precautions, operating and maintenance
instructions in this manual. This includes
in particular:
Alterations or modifications to the
product not approved by STIHL.
Using tools or accessories which
are neither approved or suitable for
the product or are of a poor quality.
Using the product for purposes for
which it was not designed.
Using the product for sports or
competitive events.
Consequential damage caused by
continuing to use the product with
defective components.
Maintenance Work
All the operations described in the
"Maintenance Chart" must be performed
on a regular basis. If these maintenance
operations cannot be performed by the
owner, they should be 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.
If these maintenance operations are not
carried out as specified, the user
assumes responsibility for any damage
that may occur. Among other parts, this
includes:
Damage to the engine due to
neglect or deficient maintenance
(e.g. air and fuel filters), incorrect
carburetor adjustment or
inadequate cleaning of cooling air
inlets (intake ports, cylinder fins).
Corrosion and other consequential
damage resulting from improper
storage.
Damage to the machine resulting
from the use of poor quality
replacement parts.
Parts Subject to Wear and Tear
Some parts of the power tool are subject
to normal wear and tear even during
regular operation in accordance with
instructions and, depending on the type
and duration of use, have to be replaced
in good time. Among other parts, this
includes:
Cutting attachments (all types)
Mounting hardware for cutting
attachments (rider plate, nut, etc.)
Deflectors for cutting attachments
Clutch
Filters (air, fuel)
Rewind starter
Throttle cable
Spark plug
Antivibration elements
Wear guard on antivibration
housing
Minimize Wear and Avoid
Damage
FS 410 C, FS 410 C L
English
41
1 Tank cap
2 Carburetor adjusting screw
3 Starter grip
4 Shutter (winter operation)
5 Spark plug boot
6 Muffler
7 Guard plate
8 Throttle trigger
9 Stop switch
10 Throttle trigger lockout
11 Handlebar
12 Handle support
13 Clamp screw
14 Carrying strip
15 Wear guard
16 Choke lever
17 Manual fuel pump
18 Filter cover
19 Fuel tank
# Serial number
Main Parts
15
13
11
19
16
18
8
9
10
14
12
5BA002 KN
#
17
5
4
2
1
3
7
6
FS 410 C, FS 410 C L
English
42
1 Mowing head
2 Deflector for mowing heads only
3 Blade
4 Metal mowing attachment
5 Deflector (for metal mowing
attachments only)
6 Shredder blade
7 Shredder deflector (only for
shredding with shredder blades)
8 Circular Saw Blade
9 Limit stop (for circular saw blades
only)
Engine
Single cylinder two-stroke engine
Ignition System
Electronic magneto ignition
Fuel System
All position diaphragm carburetor with
integral fuel pump
Weight
002BA417 KN
5
4
9
002BA414 KN
8
Specifications
Displacement: 41.6 cc
Bore: 42 mm
Stroke: 30 mm
Engine power to
ISO 8893:
2.0 kW (2.7 bhp)
at 9,000 rpm
Idle speed: 2,800 rpm
Cut-off speed (rated): 12,500 rpm
Max. output shaft
speed (cutting
attachment): 9,000 rpm
Spark plug (resistor
type): NGK CMR6H
Electrode gap: 0.5 mm
Fuel tank capacity: 750 cc (0.75 l)
Dry, without cutting attachment and
deflector
FS 410 C-E: 8.5 kg
FS 410 C-E L: 8.6 kg
FS 410 C, FS 410 C L
English
43
Overall length
Features
Noise and Vibration Data
Noise and vibration data measurements
on FS units include idling and rated
maximum speed with the same duration
of exposure.
For further details on compliance with
Vibration Directive 2002/44/EC see
www.stihl.com/vib/
Sound pressure level L
peq
to ISO 22868
Sound power level L
weq
to ISO 22868
Vibration measurement a
hv,eq
to
ISO 22867
The K
-
factor in accordance with
Directive 2006/42/EC is 2.5 dB(A) for
the sound pressure level and sound
power level; the K
-
factor in accordance
with Directive 2006/42/EC is 2.0 m/s
2
for the vibration measurement.
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 (EC) No. 1907/2006
see www.stihl.com/reach.
Users of this machine may only carry out
the maintenance and service work
described in this user manual. All other
repairs must be carried out 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.
When repairing the machine, only use
replacement parts which have been
approved by STIHL for this power tool or
are technically identical. Only use high-
quality replacement parts in order to
avoid the risk of accidents and damage
to the machine.
STIHL recommends the use of original
STIHL replacement parts.
Original STIHL parts can be identified by
the STIHL part number, the {
logo and the STIHL parts symbol K
(the symbol may appear alone on small
parts).
without cutting attachment
FS 410 C-E: 1790 mm
FS 410 C-E L: 1850 mm
C Convenience features
E ErgoStart
L Long drive tube
Z Fireproof equipment
with mowing head
FS 410 C-E: 101 dB(A)
FS 410 C-E L: 101 dB(A)
with metal mowing
attachment
FS 410 C-E: 99 dB(A)
FS 410 C-E L: 99 dB(A)
with mowing head
FS 410 C-E: 110 dB(A)
FS 410 C-E L: 110 dB(A)
with metal mowing
attachment
FS 410 C-E: 109 dB(A)
FS 410 C-E L: 109 dB(A)
with mowing
head
Handle,
left
Handle,
right
FS 410 C-E: 2.3 m/s
2
2.1 m/s
2
FS 410 C-E L: 2.1 m/s
2
2.3 m/s
2
with metal mow
-
ing attachment
Handle,
left
Handle,
right
FS 410 C-E: 2.0 m/s
2
1.7 m/s
2
FS 410 C-E L: 1.8 m/s
2
1.7 m/s
2
Maintenance and Repairs
FS 410 C, FS 410 C L
English
44
Observe all country-specific waste
disposal rules and regulations.
STIHL products must not be thrown in
the garbage can. Take the product,
accessories and packaging to an
approved disposal site for environment-
friendly recycling.
Contact your STIHL servicing dealer for
the latest information on waste disposal.
ANDREAS STIHL AG & Co. KG
Badstr. 115
D-71336 Waiblingen
confirms that the product described
below
conforms to the provisions of Directives
2006/42/EC, 2004/108/EC and
2000/14/EC and has been developed
and manufactured in compliance with
the following standards in the versions
valid at the time of production:
EN ISO 11806-1, EN 55012,
EN 61000
-
6
-
1
The measured and guaranteed sound
power levels were determined according
to Directive 2000/14/EC, Annex V, using
the ISO 10884 standard.
Measured sound power level
Guaranteed sound power level
Technical documents deposited at:
ANDREAS STIHL AG & Co. KG
Produktzulassung (Product Licensing)
The year of manufacture and serial
number are applied to the product.
Done at Waiblingen, 20.08.2014
ANDREAS STIHL AG & Co. KG
Thomas Elsner
Director Group Product Management
Disposal
000BA073 KN
EC Declaration of Conformity
Category: Clearing saw
Make: STIHL
Model: FS 410 CE
FS 410 CE
Serial identification: 4147
Displacement
FS 410 C-E 41.6 cc
FS 410 C-E L 41.6 cc
FS 410 C-E: 113 dB(A)
FS 410 C-E L: 113 dB(A)
FS 410 C-E: 115 dB(A)
FS 410 C-E L: 115 dB(A)
www.stihl.com
*04587440121B*
0458-744-0121-B
0458-744-0121-B
englisch
G
13

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  • Hallo , heb een stihl fc 410c bosmaaier start koud zeer vlot na een 20 tal min . werken valt deze stihl start zeer moeilijk tot bijna niet éénmaal ingang draait deze normaal terug voor 5 min en valt dan terug stil , soms als ik het hoor dat hij gaat stil vallen geef ik een aantal keren gas en komt hij er weer door .net of hij geen benzine krijgt ?? Gesteld op 5-6-2021 om 20:41

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