Stihl FS 410 C-M, 460 C-M, 490 C-M Owner Manual

Stihl FS 410 C-M, 460 C-M, 490 C-M Owner Manual
STIHL FS 410 C-M, 460 C-M,
490 C-M
Instruction Manual
English
© ANDREAS STIHL AG & Co. KG, 2019
0458-748-0121-F. VA6.H19.
0000007261_007_GB
Printed on chlorine-free paper
Printing inks contain vegetable oils, paper can be recycled.
Original Instruction Manual
Contents
Guide to Using this Manual
Safety Precautions and Working
Techniques
Approved Combinations of Cutting
Attachment, Deflector, Limit Stop
and Harness
Mounting the Bike Handle
Adjusting the Throttle Cable
Mounting the Deflector
Mounting the Cutting Attachment
Fuel
Fueling
Fitting the Full Harness
Balancing the Machine
Starting / Stopping the Engine
Operating Instructions
Air filter
M-Tronic
Winter Operation
Electric Handle Heating
Spark Plug
Engine Running Behavior
Storing the Machine
Sharpening Metal Cutting Blades
Inspection and Maintenance by
User
Inspections and Maintenance by
Dealer
Maintenance and Care
Minimize Wear and Avoid Damage
Main Parts
Specifications
2
2
Maintenance and Repairs
Disposal
EC Declaration of Conformity
39
39
39
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 trouble-free use of
the product.
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31
Please contact your dealer or our sales
company if you have any queries
concerning this product.
Your
Dr. Nikolas Stihl
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This instruction manual is protected by copyright. All rights reserved, especially the rights to reproduce, translate and process
with electronic systems.
FS 410 C-M K, FS 460 C-M K, FS 490 C-M K
1
English
Guide to Using this Manual
Symbols in text
Safety Precautions and
Working Techniques
WARNING
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.
Fuel tank; fuel mixture of
gasoline and engine oil
Operate decompression
valve
Manual fuel pump
Operate manual fuel
pump
Some special safety precautions have to be
observed when working
with this power tool
because of the very high
speed of the cutting
attachment.
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.
It is important that you
read the instruction manual before first use and
keep it in a safe place for
future reference. Nonobservance of the
instruction manual may
result in serious or even
fatal injury.
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.
Observe all applicable local safety
regulations, standards and ordinances.
Therefore, some changes, modifications
and improvements may not be covered
in this manual.
If you have not used this type of power
tool before: Have your dealer or other
experienced user show you how to
operate your unit or attend a special
course in its operation.
Minors should never be allowed to use a
power tool.
Tube of grease
Intake air: Summer
operation
2
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.
Intake air: Winter
operation
The user is responsible for avoiding
injury to third parties or damage to their
property.
Handle heating
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.
FS 410 C-M K, FS 460 C-M K, FS 490 C-M K
English
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.
STIHL recommends the use of genuine
STIHL cutting attachments and
accessories. They are specifically
designed to match the product 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.
Do not use a pressure washer to clean
the unit. The solid jet of water may
damage parts of the unit.
WARNING
To reduce the risk of eye
injuries, wear snug-fitting
safety glasses in accordance with European
Standard EN 166. Make
sure the safety glasses
are a good fit.
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.
Wear a face shield and make sure it is a
good fit. A face shield alone does not
provide adequate eye protection.
Clothing and Equipment
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.
Wear proper protective clothing and
equipment.
Clothing must be sturdy
but allow complete freedom of movement. Wear
snug-fitting clothing, an
overall and jacket combination, do not wear a
work coat.
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.
Wear steel-toed safety
boots with non-slip soles.
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.).
FS 410 C-M K, FS 460 C-M K, FS 490 C-M K
Wear hearing protection, e.g. earplugs
or ear muffs.
Wear robust work gloves
made of durable material
(e.g. leather).
STIHL offers a comprehensive range of
personal protective clothing and
equipment.
3
English
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.
Open the fuel cap carefully to allow any
pressure build-up in the tank to release
slowly and avoid fuel spillage.
Transporting the Power Tool
Fuel your power tool only in wellventilated areas. If you spill fuel, wipe
the machine immediately – if fuel gets on
your clothing, change immediately.
–
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 knob must
spring back from the } position to
the run position F when the throttle
trigger lockout and throttle trigger
are squeezed.
Before Starting
–
In vehicles: Properly secure your power
tool to prevent turnover, fuel spillage and
damage.
Check that your power tool is properly
assembled and in good condition – refer
to appropriate chapters in the instruction
manual.
Check that the spark plug boot is
secure – a loose boot may cause
arcing that could ignite combustible
fumes and cause a fire.
–
Fueling
–
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.
002BA479 KN
After fueling, tighten
down the fuel tank cap as
securely as possible.
Always stop the engine.
Carry the unit hanging from the shoulder
strap or properly balanced by the drive
tube. Fit transport guard on metal cutting
attachments to avoid the risk of injury
from blade contact
To reduce the risk of serious 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.
Always shut off the engine before
refueling.
Do not fuel a hot engine – fuel may spill
and cause a fire.
4
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.
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
FS 410 C-M K, FS 460 C-M K, FS 490 C-M K
English
–
–
Keep the handles dry and clean –
free from oil and dirt – for safe
control of the power tool.
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.
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 power tool as you would in an
emergency. To avoid damage, do not
throw the power tool to the ground when
practicing.
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 Unit
Starting the Engine
Always hold the power tool firmly with
both hands on the handles.
Start the engine at least 3 meters from
the fueling spot, outdoors only.
Make sure you always have good
balance and secure footing.
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.
To reduce the risk of
injury, avoid contact with
the cutting attachment.
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. If the cutting
attachment continues to rotate when the
engine is idling, have the machine
checked by your servicing dealer. STIHL
recommends a STIHL servicing dealer.
002BA480 KN
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.
15m (50ft)
Right handle on control handle, left hand
on left handle.
During Operation
Take special care in slippery conditions
(ice, wet ground, snow), on slopes or
uneven ground.
Watch out for obstacles: Roots, tree
stumps or holes 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.
Make sure you always have good
balance and secure footing.
Be particularly alert and cautious when
wearing hearing protection because
your ability to hear warnings (shouts,
alarms, etc.) is restricted.
In the event of imminent danger or in an
emergency, press the stop switch to
shut off the engine.
To reduce the risk of accidents, take a
break in good time to avoid tiredness or
exhaustion.
FS 410 C-M K, FS 460 C-M K, FS 490 C-M K
5
English
Work calmly and carefully – in daylight
conditions and only when visibility is
good. Stay alert so as not to endanger
others.
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 locations, even if your model
is equipped with a catalytic converter.
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.
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.
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 personal injury or damage
the cutting attachment
and property (e.g. parked
vehicles, windows).
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.
Special care must be taken when
working in difficult, over-grown terrain.
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.
When cutting high scrub, under bushes
and hedges: Keep cutting attachment at
a minimum height of 15 cm to avoid
harming small animals.
6
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.
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.
The gearbox becomes
hot during operation. To
reduce the risk of burn
injury, do not touch the
gearbox housing.
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.
FS 410 C-M K, FS 460 C-M K, FS 490 C-M K
English
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.
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
FS 410 C-M K, FS 460 C-M K, FS 490 C-M K
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.
7
English
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.
Deflector may be used
with mowing heads.
Deflector must not be
used with shredder
blades.
Deflector may be used
with grass cutting blades.
Deflector must not be
used with circular saw
blades.
Deflector may be used
with brush knives.
Harness
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".
The harness is included with the
machine or available as a special
accessory.
Deflector may be used
with shredder blades.
Inspect the ignition lead (insulation in
good condition, secure connection).
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
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.
002BA397 KN
Check the condition of the muffler.
N
Use the harness.
N
With the engine running, attach the
machine to the harness.
Circular saw blades must always be
used in combination with a full harness
with a quick-release system.
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.
8
FS 410 C-M K, FS 460 C-M K, FS 490 C-M K
English
To reduce the risk of injury it is essential
to take the following precautions:
Risk of Kickout (Blade Thrust) with Metal
Cutting Attachments
–
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).
Use the brushcutter like a scythe (sweep
it to the right and left) at ground level
when cutting grass and thinning young
stands.
002BA135 KN
002BA509 KN
When using metal cutting attachments 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
attachment's direction of
rotation.
002BA355 KN
WARNING
The risk of kickout is greatest when the
black area of the rotating cutting
attachment comes into contact with a
solid object.
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.
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.
FS 410 C-M K, FS 460 C-M K, FS 490 C-M K
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.
9
English
When felling, maintain a distance of at
least two tree lengths from the next
felling site.
002BA449 KN
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.
10
FS 410 C-M K, FS 460 C-M K, FS 490 C-M K
English
Approved Combinations of Cutting Attachment, Deflector, Limit Stop and Harness
Cutting Attachment
Deflector, Limit Stop
Harness
8
1
2
3
4
6
11
10
7
681BA200 KN
5
9
Approved Combinations
Cutting Attachments
Select correct combination from the
table according to the cutting
attachment you intend to use.
Metal cutting attachments
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.
1
Brush knife 305-2 Spezial
(305 mm dia.)
2
Brush knife 300-3
(300 mm dia.)
3
Scratcher tooth circular saw blade
200
(200 mm dia.)
4
Chisel tooth circular saw blade 20022 (4119), chisel tooth circular saw
blade 200-22 HP (4000)
FS 410 C-M K, FS 460 C-M K, FS 490 C-M K
5
Scratcher tooth circular saw blade
225
(225 mm dia.)
6
Chisel tooth circular saw blade 225
(225 mm dia.)
7
Carbide tipped circular saw blade
225
(225 mm dia.)
WARNING
Non-metal brush knives and circular saw
blades are not approved.
11
English
Deflector, Limit Stops
8
Deflector for metal cutting
attachments, items 1 to 2
9 Limit stop for circular saw blades,
items 3 and 4
10 Limit stop for circular saw blades,
items 5 and 7
Harness
11 Full harness must be used
12
FS 410 C-M K, FS 460 C-M K, FS 490 C-M K
English
Mounting the Handlebar
Mounting the Bike Handle
To assemble the swivelling handle
support it is necessary to fit a spring in
the clamps and secure them to the
handle support on the machine.
Mounting Bike Handle with Swivelling
Handle Support
4
2
5
7
Do not rotate the control handle (1)
between unpacking and mounting it on
the handlebar; see also chapter on
"Adjusting the Throttle Cable".
Use the spring (5) from the parts kit
supplied with the machine.
N
Push the spring (5) into the lower
clamp molding (6).
N
Position the clamp moldings (4) with
handlebar (2) on the handle
support (7).
N
Do not rotate the handlebar in the
clamp moldings.
2
8
3BA004 KN
4
N
3BA006 KN
3BA003 KN
3BA005 KN
1
N
Do not change the position of the
clamp moldings on the handlebar
until the control handle is mounted.
FS 410 C-M K, FS 460 C-M K, FS 490 C-M K
3BA007 KN
The machine is shipped with the clamp
moldings (4) mounted on the
handlebar (2).
N
Raise the grip of the wing screw (8)
to the upright position.
13
English
13
5
Position wing screw (8) in threaded
insert in handle support (7) –
against pressure of spring (5).
3BA026 KN
Fold the grip of the wing screw down
so that it is flush.
Swing the control handle (1) behind
the handlebar so that the throttle
trigger (13) is facing up.
14
13
2
14
11
Position the clamp moldings so that
the tabs (9) on the lower clamp
molding (6) line up with the
slots (10) in the handle support (7).
1
12
N
1
002BA458 KN
7
10
N
Mounting the Control Handle
6
9
N
N
3BA0009 KN
N
3BA008 KN
7
3BA012 KN
1
002BA451 KN
8
N
Take out the screw (11) and remove
the nut (12) from the control
handle (1).
Push the control handle (1) in this
position onto the end of the
handlebar (2) until the holes (14)
are in alignment – the throttle
trigger (13) points up.
12
1
N
N
14
Only tighten the wing screw
moderately.
N
Pass the control handle (1) under
the drive tube and put it down on the
right-hand side of the machine.
N
002BA459 KN
Rotate wing screw clockwise until
the lower clamp molding (6) butts
against the handle support (7).
11
3BA011 KN
6
7
3BA010 KN
1
Fit the nut (12) in the control
handle (1), insert the screw (11)
and tighten it down firmly.
FS 410 C-M K, FS 460 C-M K, FS 490 C-M K
English
Adjusting the Handlebar
A
6BA006 KN
Opening the wing screw
2
3BA027 KN
N
Checking the Throttle Cable
Raise the grip of the wing screw to
the upright position.
N
3BA014 KN
N
3BA028 KN
N
N
Turn the wing screw
counterclockwise until the handle
support can be moved.
Fold the grip of the wing screw down
so that it is flush.
After mounting the control handle,
check the throttle cable – see
chapter on "Adjusting the Throttle
Cable".
Position the handlebar (2) so that
distance A is about 17 cm (7 in).
Do not clamp the curved part of the
handlebar.
Closing the wing screw
6BA007 KN
6BA005 KN
Line up the handlebar
N
N
Rotate the wing screw clockwise
until it becomes difficult to turn.
N
Tighten down the wing screw firmly.
Move the handlebar to the required
position.
FS 410 C-M K, FS 460 C-M K, FS 490 C-M K
15
English
Swiveling the Handlebar
Adjusting the Throttle Cable
Transport position
2
Mounting the Deflector
It may be necessary to correct the
adjustment of the throttle cable after
assembling the machine or after a
prolonged period of operation.
Use the Right Deflector
Adjust the throttle cable only when the
unit is completely and properly
assembled.
8
1
N
Loosen the wing screw (8) 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 (8)
firmly.
N
Set the throttle trigger to the full
throttle position.
N
Carefully rotate the screw in the
throttle trigger in the direction of the
arrow until you feel initial resistance.
Then rotate it another half turn in the
same direction.
002BA542 KN
WARNING
The deflector (1) is approved for brush
knives only and must therefore be
mounted before fitting a brush knife. It is
also necessary to change the guard
ring ((2), see "Mounting the Cutting
Attachment" / "Mounting Mowing
Attachments".
3
002BA543 KN
3BA025 KN
002BA655 KN
2
Working position
N
Reverse the sequence described
above to swing the handles up and
turn the handlebar
counterclockwise.
WARNING
Stop (3) is approved for circular saw
blades only and must therefore be
mounted before fitting a circular saw
blade.
16
FS 410 C-M K, FS 460 C-M K, FS 490 C-M K
English
Mounting the Deflector
Deflectors (1 and 3) are mounted to the
gearbox in the same way.
Mounting the Cutting
Attachment
NOTICE
The thrust plate (1) is required for
mounting all cutting attachments to the
gearbox.
Placing power tool on the ground
NOTICE
5
Remove dirt from joints on gearbox
and deflector – make sure that no
dirt gets into the screw holes in the
gearbox.
N
Place the deflector on the
gearbox (4).
N
Insert the screws (5) and tighten
them down firmly.
002BA406 KN
N
002BA544 KN
4
The guard washer (4) is required for
mounting brush knives.
N
Shut off the engine.
N
Lay your power tool on its back so
that the cutting attachment
mounting face is pointing up.
NOTICE
Fitting the Thrust Plate
002BA548 KN
1
N
Slip the thrust plate (1) over the
shaft (2).
Your power tool comes from the factory
with a guard ring (3) for circular saw
blades.
FS 410 C-M K, FS 460 C-M K, FS 490 C-M K
Check inside of guard ring (3) and area
around it for dirt at regular intervals, or
when you change the cutting
attachment, and clean if necessary.
The guard washer (4) is not fitted with
circular saw blades.
4
2
3
Cleaning Gearbox Mounting Hardware
for Cutting Attachment
N
Pull the guard washer (4) and thrust
plate (1) off the shaft.
N
Thoroughly clean the guard ring (3),
shaft (2), thrust plate (1) and guard
washer (4) – do not remove the
guard ring.
Mounting the Guard Ring
Always fit the guard ring that matches
the cutting attachment you intend to use.
Recommendation: The guard ring must
be mounted with particular care. Have
this work performed by your servicing
dealer. STIHL recommends a STIHL
servicing dealer.
17
English
The following guard rings are either
fitted to the gearbox or are available as
special accessories.
Guard ring for sawing applications
Guard ring for mowing applications
A limit stop kit, which includes a
deflector, a guard washer and guard ring
for mowing attachments, is available as
a special accessory for mounting brush
knives.
2
N
Rotate shaft or cutting attachment
until the stop pin slips into position
and blocks the shaft.
WARNING
Use a deflector that matches the cutting
attachment – see "Mounting the
Deflector".
3
002BA525 KN
2
1
N
Fit the guard ring (1) for sawing
applications.
N
Fit the thrust plate (2).
Fit the thrust plate (2) and the guard
washer (3).
WARNING
Wear protective gloves to reduce the
risk of direct contact with the sharp
cutting edges.
Blocking the Shaft
1
3
2
2
0812BA021 KN
002BA524 KN
Mount the guard ring (1) for mowing
applications.
Removing and Installing Metal Cutting
Attachments
Before removing and installing metal
cutting attachments:
For circular saw blades
For optimum protection from the ingress
of grass when using mowing
attachments:
N
Insert the stop pin (2) in the bore (3)
in the gearbox as far as stop, apply
slight pressure.
Mounting the Cutting Attachment
1
N
N
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.
18
FS 410 C-M K, FS 460 C-M K, FS 490 C-M K
English
Brush knife 305-2 and 300-3
WARNING
Collar (a) must locate in the cutting
attachment's mounting hole (b).
Aligning the cutting attachment
Circular Saw Blades 200 and 225
Aligning the cutting attachment
Cutting attachments with 2, 3 or 3 teeth
may point in either direction – these
cutting attachments must be turned over
regularly to help avoid one-sided wear.
Mounting the cutting attachment
N
N
Fit the thrust washer (2) – convex
side must face up.
N
Fit the rider plate (3) (for mowing
applications).
N
Block the shaft.
N
Screw the mounting nut (4) on to the
shaft counterclockwise and tighten
it down firmly.
WARNING
If the mounting nut has become too
loose, fit a new one.
Fit the guard ring for mowing
applications.
681BA165 KN
681BA123 KN
Securing the cutting attachment
Cutting edges of circular saw blades
must point clockwise.
Mounting the cutting attachment
N
Fit the guard ring for sawing
applications.
4
NOTICE
Remove the tool used to block the shaft.
4
1
Block the shaft.
N
Unscrew the mounting nut
clockwise.
N
Pull the cutting attachment with its
mounting hardware off the gearbox.
002BA521 KN
b
a
N
N
Place the cutting attachment (1) in
position.
FS 410 C-M K, FS 460 C-M K, FS 490 C-M K
2
b
a
1
002BA300 KN
3
2
3
Removing the cutting attachment
N
Place the cutting attachment (1) in
position.
19
English
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) (for sawing
applications).
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.
Engines equipped with M-Tronic deliver
full power when run on gasoline with an
ethanol content of up to 25% (E25).
Engine Oil
If you mix the fuel yourself, use only
STIHL two-stroke engine oil or another
high-performance engine oil in
accordance with JASO FB, JASO FC,
JASO FD, ISO-L-EGB, ISO-L-EGC or
ISO-L-EGD.
STIHL specifies STIHL HP Ultra twostroke engine oil or an equivalent highperformance engine oil in order to
maintain emission limits over the
machine’s service life.
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
Mix Ratio
STIHL 50:1 two-stroke engine oil: 50
parts gasoline to 1 part oil
Examples
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.
20
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.
Fuel
Gasoline
Liters
1
5
10
15
20
25
N
STIHL engine oil 50:1
Liters
(ml)
0.02
(20)
0.10
(100)
0.20
(200)
0.30
(300)
0.40
(400)
0.50
(500)
Use a canister approved for storing
fuel. Pour oil into canister first, then
add gasoline and mix thoroughly.
FS 410 C-M K, FS 460 C-M K, FS 490 C-M K
English
Storing Fuel
Store fuel only in approved safety-type
fuel canisters in a dry, cool and safe
location protected from light and the sun.
Opening the filler cap
Fueling
Fuel Filler Cap
2709BA003 KN
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.
N
Thoroughly shake the mixture in the
canister before fueling your
machine.
WARNING
Pressure may build up in the canister –
open it carefully.
N
2709BA025 KN
STIHL MotoMix may be stored for up to
2 years without any problems.
Clean the fuel tank and canister
from time to time.
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.
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
2709BA004 KN
Dispose of remaining fuel and cleaning
fluid properly in accordance with local
regulations and environmental
requirements.
WARNING
N
FS 410 C-M K, FS 460 C-M K, FS 490 C-M K
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.
21
English
Attaching Machine to Harness
Fitting the Full Harness
Fitting the full harness is described in
detail in the leaflet supplied with the
harness.
Balancing the Machine
1
The type and style of the harness
depend on the market.
1
N
1
Attach the carabiner (1) to the
perforated rail (2) on the drive tube.
With the unit suspended from the
harness, see how it is balanced and
change attachment point as
necessary:
Floating Positions
2
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 carabiner to the
machine's perforated rail (3) – see
“Attaching Machine to Harness”.
N
Find the right attachment point for
the cutting attachment you are
using – see "Balancing the
Machine".
Brush knives should just touch the
ground.
Press down the bar on the
carabiner (1) and pull the perforated
rail (2) out of the carabiner.
6BA010 KN
002BA411 KN
N
N
002BA632 KN
1
2
2
6BA009 KN
Disconnecting Machine from Harness
1
22
N
002BA631 KN
2
Fitting the Harness
3
The unit is balanced differently
depending on the cutting attachment
used.
2
Circular saw blades should "hover"
about 20 cm above the ground.
FS 410 C-M K, FS 460 C-M K, FS 490 C-M K
English
The machine must be quickly thrown off
in the event of imminent danger.
Practice removing and putting down the
power tool as you would in an
emergency. To avoid damage, do not
throw the power tool to the ground when
practicing.
FS
410,
460
FS
460
FS 490
Controls
0000-GXX-0839-A0
WARNING
Symbols on choke knob
Starting / Stopping the
Engine
Run position F – a hot engine is started
in this position or the engine runs in this
position.
Start position } – a cold engine is
started in this position.
3
Starting the Engine
2
1
002BA484 KN
FS 410, 460
1
2
3
4
Throttle trigger lockout
Throttle trigger
Stop switch with Run and Stop
positions. Press the momentary
contact stop switch to switch off the
ignition.
FS 490
Function of stop switch and ignition
system
FS 410 C-M K, FS 460 C-M K, FS 490 C-M K
4
2709BA015 KN
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.
0000-GXX-0840-A0
Throwing Off Machine
N
Press the manual fuel pump
bulb (4) at least five times – even if
the bulb is filled with fuel.
23
English
The choke knob is in the normal run
position F.
the cutting attachment is not
touching the ground or any other
obstacles.
5
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
throttle trigger lockout.
Do not stand or kneel on the drive tube.
N
If the engine is cold: Depress in the
outer edge (arrows) of the choke
knob (5) and then turn it to Start }.
Cranking
N
Hold the starter grip with your right
hand.
N
Pull the starter grip steadily.
6BA011 KN
24
Place the unit on the ground: It must
rest securely on the engine's guard
plate and the deflector. Check that
If the engine was started in the start
position }: Briefly press down the
trigger lockout and the pull the
throttle trigger at the same time –
the choke knob moves to the run
position (F) and the engine settles
down to idling speed.
Your machine is now ready for
operation.
WARNING
The cutting attachment must not rotate
in the Run F position with the engine at
idling speed.
NOTICE
N
6BA014 KN
5
6BA012 KN
N
If you have started the machine for the
first time, refer to the notes on "Starting
for first time" in section "Other Hints on
Starting".
NOTICE
2709BA016 KN
FS 490
0000-GXX-0841-A0
FS 410, 460
Using the Machine
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 the engine
runs.
N
If the engine does not start: Turn the
choke knob to the start position }
and repeat starting procedure.
If the cutting attachment rotates when
the engine is idling, refer to notes in
chapter on "Adjusting the Throttle
Cable" or have the machine serviced by
your dealer. STIHL recommends an
authorized STIHL servicing dealer.
N
Attach the machine to the shoulder
strap.
N
Machine is ready for use.
FS 410 C-M K, FS 460 C-M K, FS 490 C-M K
English
At very low outside temperatures
002BA485 KN
Stopping the Engine
N
Depress the momentary contact
stop switch – the engine stops –
release the stop switch – it springs
back to the run position.
N
Set the engine to winter operation if
necessary, see "Winter Operation".
N
If the machine is very cold (frost on
machine), allow the engine to warm
up in the Start } position after
starting until normal operating
temperature is reached. Warning:
The cutting attachment 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.
Other Hints on Starting
Engine is flooded
Starting for first time
N
Move the choke lever to F and
continue cranking until the engine
runs.
Fuel tank run until completely dry
6BA024 KN
N
N
N
Depress the throttle trigger – do not
press down the throttle trigger
lockout.
If engine speed increases or the cutting
attachment rotates:
N
Go to section "Stopping the
Engine".
N
Go to "Adjusting the Throttle Cable".
After refueling, press the manual
fuel pump bulb at least five times –
even if the bulb is filled with fuel.
Operating Instructions
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 enginemounted components (ignition,
carburetor) from thermal overload.
After Finishing Work
Now start the engine.
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-ofservice periods – see "Storing the
Machine".
If the engine speed does not increase,
your machine is ready for operation.
FS 410 C-M K, FS 460 C-M K, FS 490 C-M K
25
English
Air filter
FS 410, 460
3
0000-GXX-0838-A0
General Information
2
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.
FS 490
Dirty air filters reduce engine power,
increase fuel consumption and make
starting more difficult.
2
Replacing the Air Filter
Only if there is a noticeable loss of
engine power
N
Remove the filter cover (2).
Set the choke knob to }.
N
Clean away loose dirt from around
the filter (3) and inside the filter
cover.
N
FS 410, 460
Maintenance and care of the special
filter element for winter operation are
described in the chapter on "Winter
Operation".
The air filter (3) is a pleated paper filter
element.
0000-GXX-0837-A0
1
Filter Element for Winter Operation
2709BA018 KN
3
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.
N
Remove and check the filter
element (3) – replace if paper or
frame is dirty or damaged.
N
Unpack the new filter.
NOTICE
FS 490
1
N
26
Loosen the screws (1).
2709BA017 KN
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.
FS 410 C-M K, FS 460 C-M K, FS 490 C-M K
English
Winter Operation
General Information
At temperatures below +10°C
The M-Tronic controls fuel feed and
ignition timing electronically in all
operating conditions.
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.
2
M-Tronic ensures optimum engine
power at all times, very good
acceleration and automatic adjustment
to suit changing conditions.
1
For this reason there is no need to
change the carburetor setting – the
carburetor has no adjusting screws.
An arrow (1) on the shroud indicates the
setting of the shutter (2) for summer or
winter operation. Meaning of symbols:
If the usual good running behavior and
engine power are not reached after an
extreme change in operating conditions,
contact your servicing dealer for
assistance.
–
"Sun" = summer operation
–
"Snowflake" = winter operation
STIHL recommends that you have
servicing and repair work carried out
exclusively by an authorized STIHL
servicing dealer.
FS 410 C-M K, FS 460 C-M K, FS 490 C-M K
2
9926BA017 KN
M-Tronic guarantees simple and fast
starts. The engine is started in the
Start } position irrespective of climatic
conditions or engine temperature. After
starting, the Start } position can be
maintained until the engine runs
smoothly.
3
9926BA016 KN
M-Tronic
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.
27
English
FS 410, 460
5
FS 490
Always return the shutter (2) to the
summer position.
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".
N
2
Set the shutter (2) to the summer or
winter position.
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.
5
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.
Depending on the ambient temperature:
Clean the air filter.
4
2709BA019 KN
N
2
4
9926BA018 KN
2
Note for FS 460 with tank cap with
hinged grip: The O-ring supplied with the
cover plate kit can be left on the
machine's filler cap.
0000-GXX-0843-A0
At temperatures above +20°C
The cover plate kit contains the following
parts for converting the power tool:
4
Cover plate partially blanks off the
slots in the starter housing
5
Air filter with synthetic fabric
element
–
For FS 460 with tank cap with
hinged grip: O-ring for the tank filler
cap
–
Instruction sheet describing the
conversion.
In case of stubborn dirt or sticky filter
fabric:
N
Wash the filter in a clean, nonflammable solution (e.g. warm
soapy water) and then dry.
Always replace a damaged filter.
After installing the cover plate kit:
N
Set the shutter (2) to the winter
position.
At temperatures above -10°C
N
28
Remove the parts of the cover plate
kit and refit the standard parts for
summer operation.
FS 410 C-M K, FS 460 C-M K, FS 490 C-M K
English
Depending on the version, the power
tool may be equipped with a handle
heating system.
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".
1
Switch on handle heating by moving
the switch (1) on the left handle to Z.
Switch off the heating if the handle
temperature feels too high.
N
Move the switch (1) to 0
There is no risk of overheating during
long periods of operation. The heating
system is maintenance-free. Contact
your dealer if you have any problems.
STIHL recommends a STIHL servicing
dealer.
N
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.
–
Too much oil in fuel mix.
–
Dirty air filter.
–
Unfavorable running conditions.
Rotate the screw (1) in the cap (2)
until the screw head projects from it.
3
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.
FS 410 C-M K, FS 460 C-M K, FS 490 C-M K
A
Possible causes are:
9926BA020 KN
N
9926BA021 KN
1
2709BA020 KN
Removing the Spark Plug
000BA039 KN
Checking the Spark Plug
Spark Plug
1
000BA045 KN
Electric Handle Heating
WARNING
Arcing may occur if the adapter nut (1) is
loose or missing. Working in an easily
combustible or explosive atmosphere
may cause a fire or an explosion. This
can result result in serious injuries or
damage to property.
29
English
N
Use resistor type spark plugs with a
properly tightened adapter nut.
Installing the spark plug
Screw in spark plug
N
Firmly press the spark plug
connector onto the spark plug.
N
Storing the Machine
If engine running behavior is still
unsatisfactory after servicing the air filter
and adjusting the throttle cable, the
cause may be the muffler.
Have the muffler checked by a servicing
dealer for contamination
(carbonization).
0000-GXX-B459-A0
N
Engine Running Behavior
Align the spark plug connector so
that the ignition cable points to the
upper left corner (arrow).
STIHL recommends that you have
servicing and repair work carried out
exclusively by an authorized STIHL
servicing dealer.
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
2
3
9926BA022 KN
4
N
Place the cap (1) on the hood from
behind and at a slight angle,
pressing the nose (2) into the
opening (3) of the hood.
N
On the front, swivel the cap onto the
hood, screw in the screw (4) and
tighten.
30
FS 410 C-M K, FS 460 C-M K, FS 490 C-M K
English
N
N
Inspection and Maintenance
by User
Use a sharpening file (special
accessory) 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.
Clamped Area of Handlebar
1
N
1
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.
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.
2
Resharpen frequently, take away as
little material as possible: two or
three strokes of the file are usually
enough.
1
N
Handlebar cannot be clamped firmly in
position
6BA021 KN
Sharpening Metal Cutting
Blades
Check the freedom of movement of
the handlebar (1) in the clamp
moldings (2) at regular intervals.
N
2
3
Resharpen the cutters (1) uniformly
– do not alter the contour of the
parent blade (2) in any way.
1
See cutting attachment packaging for
additional sharpening instructions.
Balancing
N
After resharpening about 5 times,
check the cutting attachment for
out-of-balance on a STIHL balancer
(special accessory) or have it
checked by a dealer and rebalanced as necessary – STIHL
recommends a STIHL servicing
dealer.
6BA022 KN
2
002BA358 KN
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, nonflammable cleaning solution – do
not use a cleaning agent containing
oil or grease.
FS 410 C-M K, FS 460 C-M K, FS 490 C-M K
31
English
Inspections and Maintenance
by Dealer
Anti-vibration elements
Maintenance Work
6BA015 KN
STIHL recommends that you have
servicing and repair work carried out
exclusively by an authorized STIHL
servicing dealer.
Fuel Pickup Body in Tank
2709BA022 KN
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.
N
Check the pickup body in the fuel
tank every year and have it replaced
if necessary.
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
6BA026 KN
The pickup body should be positioned in
the area of the tank shown in the
illustration.
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.
32
FS 410 C-M K, FS 460 C-M K, FS 490 C-M K
English
Visual inspection (condition, leaks)
X
Complete machine
Clean
Replace any damaged parts
X
Control handle
Check operation
X
Air filter, paper filter
X
X
X
Replace1)
X
Visual inspection
Clean
Fuel tank
Clean
X
X
X
Replace
Manual fuel pump (if fitted)
Pickup body (filter) in fuel tank
Spark plug
Cooling inlets
Cylinder fins
X
X
X
Check
X
Have repaired by servicing dealer2)
X
Check2)
X
Replace2)
Check – the cutting attachment must not
turn
Engine idle speed
as required
X
X
Visual inspection
Air filter, synthetic fabric filter
if damaged
if problem
every 12 months
monthly
weekly
after each refueling stop
before starting work
The following intervals apply to normal operating conditions only. If your daily working time is longer or operating conditions are difficult (very dusty work area, etc.),
shorten the specified intervals accordingly.
after finishing work or daily
Maintenance and Care
X
X
X
X
X
If the cutting attachment turns when the
engine is idling, have machine repaired
by servicing dealer2)
X
Readjust electrode gap
X
Replace after every 100 operating hours
Visual inspection
X
Clean
Clean
X
2)
FS 410 C-M K, FS 460 C-M K, FS 490 C-M K
X
33
Spark arrestor3) in muffler
Check2)
X
Clean or replace2)
X
All accessible screws and nuts (not adjustRetighten
ing screws) 4)
Antivibration elements
Visual inspection5)
X
X
X
2)
Replace
Visual inspection
X
X
X
Check tightness
X
X
Metal cutting attachment
Sharpen
X
Exhaust port
Decoke after first 139 hours of operation, then every 150 hours
Safety labels
Replace
Cutting attachment
1)
2)
3)
4)
5)
34
as required
if damaged
if problem
every 12 months
monthly
weekly
after each refueling stop
before starting work
The following intervals apply to normal operating conditions only. If your daily working time is longer or operating conditions are difficult (very dusty work area, etc.),
shorten the specified intervals accordingly.
after finishing work or daily
English
Replace
X
X
X
X
Only if there is a noticeable loss of engine power
STIHL recommends that this work be done by a STIHL servicing dealer
not in all versions, market-specific
Tighten down the muffler mounting screws firmly after first 10 to 20 hours of operation.
see chapter "Inspections and Maintenance by Dealer", section "Antivibration Elements"
FS 410 C-M K, FS 460 C-M K, FS 490 C-M K
English
Minimize Wear and Avoid
Damage
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.
servicing dealer. STIHL dealers are
regularly given the opportunity to attend
training courses and are supplied with
the necessary technical information.
–
Throttle cable
–
Spark plug
–
Antivibration elements
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:
–
Wear guard on antivibration
housing
–
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.
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
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:
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.
–
Cutting attachments (all types)
–
Mounting hardware for cutting
attachments (rider plate, nut, etc.)
–
Deflectors for cutting attachments
–
Clutch
STIHL recommends that you have
servicing and repair work carried out
exclusively by an authorized STIHL
–
Filters (air, fuel)
–
Rewind starter
FS 410 C-M K, FS 460 C-M K, FS 490 C-M K
35
English
Main Parts
FS 410, 460
3
8
9
7
10
11
2
1
12
5
6
15
14
13
16
19
FS 490
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
#
4
17
#
4
3
7
18
10
11
2
1
5
15
6
12
14
13
16
19
17
#
36
0000-GXX-0842-A0
8
9
Tank cap
Starter grip
Shutter (winter operation)
Spark plug boot
Muffler
Guard plate
Throttle trigger
Stop switch
Throttle trigger lockout
Handlebar
Handle support
Wing screw
Carrying strip
Choke knob
Manual fuel pump
Filter cover
Fuel tank
Switch for handle heating (option)
Wear guard
Serial number
FS 410 C-M K, FS 460 C-M K, FS 490 C-M K
English
FS 490 C
Specifications
2
002BA545 KN
1
Metal mowing attachment
Deflector for metal mowing
attachments only
3
3
4
4
Circular saw blade
Limit stop for circular saw blades
only
002BA546 KN
1
2
Engine
Single cylinder two-stroke engine
FS 410 C
Displacement:
Bore:
Stroke:
Engine power to
ISO 8893:
Idle speed:
Cut-off speed (rated):
Max. output shaft
speed (cutting
attachment):
41.6 cc
42 mm
30 mm
2.0 kW (2.7 bhp)
at 9,000 rpm
2,700 rpm
12,300 rpm
10,130 rpm
FS 460 C
Displacement:
Bore:
Stroke:
Engine power to
ISO 8893:
Idle speed:
Cut-off speed (rated):
Max. output shaft
speed (cutting
attachment):
FS 410 C-M K, FS 460 C-M K, FS 490 C-M K
Displacement:
Bore:
Stroke:
Engine power to
ISO 8893:
Idle speed:
Cut-off speed (rated):
Max. output shaft
speed (cutting
attachment):
51.6 cc
44.7 mm
32.9 mm
2.4 kW (3.3 HP)
at 9,500 rpm
2,500 rpm
12,300 rpm
10,130 rpm
Ignition System
Electronic magneto ignition
FS 410 C, FS 460 C
Spark plug (resistor
type):
Electrode gap:
FS 490 C
Spark plug (resistor
type):
Electrode gap:
NGK CMR6H
Bosch USR4AC
0.5 mm
NGK BPMR7A
45.6 cc
44 mm
30 mm
2.2 kW (3 bhp)
at 9,500 rpm
2,700 rpm
12,300 rpm
Fuel System
10,130 rpm
Fuel tank capacity:
FS 410 C:
750 cc (0.75 l)
FS 460 C:
750 cc (0.75 l)
FS 490 C:
990 cc (0.99 l)
0.5 mm
All position diaphragm carburetor with
integral fuel pump
37
English
Sound pressure level Lp to ISO 22868
Weight
Dry, without cutting attachment and
deflector
FS 410 C-EM K:
8.4 kg
FS 460 C-EM K:
8.4 kg
FS 460 C-EM KW:
8.5 kg
FS 490 C-EM K:
9.2 kg
FS 490 C-EM KW:
9.4 kg
Overall length
without cutting attachment
FS 410 C-EM K:
FS 460 C-EM K:
FS 460 C-EM KW:
FS 490 C-EM K:
FS 490 C-EM KW:
1675 mm
1675 mm
1675 mm
1680 mm
1680 mm
Features
C
E
M
K
W
Z
Convenience features
ErgoStart
M-Tronic
Short drive tube
Handle heating
Spark arresting screen
Noise and Vibration Data
Noise and vibration data measurements
on FS units include idling and rated
maximum speed with the same duration
of exposure.
with metal cutting
attachment
FS 410 C-EM K:
FS 460 C-EM K:
FS 460 C-EM KW:
FS 490 C-EM K:
FS 490 C-EM KW:
REACH
REACH is an EC regulation and stands
for the Registration, Evaluation,
Authorisation and Restriction of
Chemical substances.
100 dB(A)
101 dB(A)
102 dB(A)
102 dB(A)
102 dB(A)
For information on compliance with the
REACH regulation (EC) No. 1907/2006
see www.stihl.com/reach.
Sound power level Lw to ISO 22868
with metal cutting
attachment
FS 410 C-EM K:
FS 460 C-EM K:
FS 460 C-EM KW:
FS 490 C-EM K:
FS 490 C-EM KW:
Exhaust Emissions
112 dB(A)
113 dB(A)
114 dB(A)
115 dB(A)
116 dB(A)
Vibration measurement ahv,eq to
ISO 22867
with metal cutting
attachment
FS 410 C-EM K:
FS 460 C-EM K:
FS 460 C-EM KW:
FS 490 C-EM K:
FS 490 C-EM KW:
Handle,
left
2.4 m/s2
2.4 m/s2
2.4 m/s2
2.8 m/s2
2.8 m/s2
Handle,
right
2.0 m/s2
2.0 m/s2
2.0 m/s2
2.8 m/s2
2.8 m/s2
The CO2value measured in the EU type
approval procedure is specified at
www.stihl.com/co2.
The measured CO2value was
determined on a representative engine
in accordance with a standardized test
procedure under laboratory conditions
and does not represent either an explicit
or implied guarantee of the performance
of a specific engine.
The applicable exhaust emission
requirements are fulfilled by the
intended usage and maintenance
described in this instruction manual. The
type approval expires if the engine is
modified in any way.
The K-factor in accordance with
Directive 2006/42/EC is 2.0 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/s2
for the vibration level.
For further details on compliance with
Vibration Directive 2002/44/EC see
www.stihl.com/vib.
38
FS 410 C-M K, FS 460 C-M K, FS 490 C-M K
English
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 highquality replacement parts in order to
avoid the risk of accidents and damage
to the machine.
Disposal
EC Declaration of Conformity
ANDREAS STIHL AG & Co. KG
Badstr. 115
D-71336 Waiblingen
Observe all country-specific waste
disposal rules and regulations.
Germany
declare in exclusive responsibility that
000BA073 KN
Maintenance and Repairs
STIHL products must not be thrown in
the garbage can. Take the product,
accessories and packaging to an
approved disposal site for environmentfriendly recycling.
Contact your STIHL servicing dealer for
the latest information on waste disposal.
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).
Category:
Make:
Model:
Clearing saw
STIHL
FS 410 C-EM K:
FS 460 C-EM K:
FS 460 C-EM KW
Serial identification: 4147
Model:
FS 490 C-EM K:
FS 490 C-EM KW
Serial identification: 4148
Displacement
FS 410 C-EM K:
41.6 cc
FS 460 C-EM K:
45.6 cc
FS 460 C-EM KW 45.6 cc
FS 490 C-EM K:
51.6 cc
FS 490 C-EM KW 51.6 cc
conforms to the relevant provisions of
Directives 2011/65/EU, 2006/42/EC,
2014/30/EU and 2000/14/EC and has
been developed and manufactured in
compliance with the following standards
in the versions valid on the date of
production:
EN 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.
FS 410 C-M K, FS 460 C-M K, FS 490 C-M K
39
English
Measured sound power level
FS 410 C-EM K:
FS 460 C-EM K:
FS 460 C-EM KW:
FS 490 C-EM K:
FS 490 C-EM KW:
112 dB(A)
114 dB(A)
114 dB(A)
116 dB(A)
116 dB(A)
Guaranteed sound power level
FS 410 C-EM K:
FS 460 C-EM K:
FS 460 C-EM KW:
FS 490 C-EM K:
FS 490 C-EM KW:
114 dB(A)
116 dB(A)
116 dB(A)
118 dB(A)
118 dB(A)
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, 27.11.2018
ANDREAS STIHL AG & Co. KG
Thomas Elsner
Director Product Management and
Services
40
FS 410 C-M K, FS 460 C-M K, FS 490 C-M K
0458-748-0121-F
englisch
G
www.stihl.com
*04587480121F*
0458-748-0121-F
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