Stihl Fs 410 C Instruction Manual

							FS 360 C-M, FS 410 C-M, FS 460 C-M, FS 490 C-M
English
29 the cutting attachment is not 
touching the ground or any other 
obstacles.
NMake sure you have a firm footing, 
either standing, stooping or 
kneeling.
NHold the unit firmly on the ground 
with your left hand and press down 
– do not touch the throttle trigger or 
throttle trigger lockout.
NOTICE
Do not stand or kneel on the drive tube.
NHold the starter grip with your right 
hand.
NPull the starter grip steadily.
NOTICE
Do not pull out the starter rope all the 
way – it might otherwise break.
NDo not let the starter grip snap back. 
Guide it slowly back into the housing 
so that the starter rope can rewind 
properly.
NContinue cranking until the engine 
runs.
NIf the engine does not start: Turn the 
choke knob to the start position} 
and repeat starting procedure.
Using the machine
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".
NIf 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 RunF position with the engine at 
idling speed.
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.
NAttach the machine to the shoulder 
strap.
NMachine is ready for use.
Stopping the Engine
NDepress the momentary contact 
stop switch – the engine stops – 
release the stop switch – it springs 
back to the run position.
Other Hints on Starting
Starting for first time
NDepress the throttle trigger – do not 
press down the throttle trigger 
lockout.
If engine speed increases or the cutting 
attachment rotates:
NGo to section "Stopping the 
Engine".
NGo to "Adjusting the Throttle Cable".
If the engine speed does not increase, 
your machine is ready for operation.
6BA012 KN
6BA014 KN
002BA485 KN
6BA024 KN 
						

							FS 360 C-M, FS 410 C-M, FS 460 C-M, FS 490 C-M
English
30 At very low outside temperatures
NSet the engine to winter operation if 
necessary, see "Winter Operation".
NIf 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
NCheck that all settings are correct.
NCheck that there is fuel in the tank 
and refuel if necessary.
NCheck that the spark plug boot is 
properly connected.
NRepeat the starting procedure.
Engine is flooded
NMove the choke lever to F and 
continue cranking until the engine 
runs.
Fuel tank run until completely dry
NAfter refueling, press the manual 
fuel pump bulb at least five times – 
even if the bulb is filled with fuel.
NNow start the engine.
Using Transport Guard
The type of transport guard depends on 
the metal cutting attachment supplied 
with the machine. Transport guards are 
available as special accessories.
230 mm Grass Cutting Blades
Grass Cutting Blades up to 260 mm
NDisconnect wire rod from the 
transport guard.
Transporting the Unit
681BA268 KN
681BA269 KN
681BA270 KN
681BA272 KN
681BA301 KN
681BA275 KN1.
2. 
						

							FS 360 C-M, FS 410 C-M, FS 460 C-M, FS 490 C-M
English
31 NSwing wire rod outwards.
NFit the transport guard on the cutting 
attachment from below.
NHook wire rod to the transport 
guard.
NSwing wire rod into position.
Circular Saw Blades
NDisconnect wire rod from the 
transport guard.NSwing wire rod outwards.
NFit transport guard on saw blade 
from below, making sure the limit 
stop is properly seated in the 
recess.
NSwing wire rod into position.
NHook wire rod to the transport 
guard.
0000-GXX-0423-A0
681BA281 KN
2.
681BA302 KN
681BA275 KN1.
2.
681BA276 KN
681BA277 KN
2. 
						

							FS 360 C-M, FS 410 C-M, FS 460 C-M, FS 490 C-M
English
32
Universal Transport Guard
NDisconnect wire rod from the 
transport guard and swing it 
outwards.
NFit the transport guard on the cutting 
attachment from below.
NAttach wire rod to the hook on the 
transport guard.
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
NSet the choke knob to }.
NLoosen the screws (1).
681BA293 KN
681BA294 KN
1.2.
2.
681BA295 KN
2SHUDWLQJ,QVWUXFWLRQV$LUILOWHU
FS 410, 460FS 360, 410, 460
0000-GXX-0830-A0
1
2709BA017 KN
FS 490
1 
						

							FS 360 C-M, FS 410 C-M, FS 460 C-M, FS 490 C-M
English
33 NRemove the filter cover (2).
NClean away loose dirt from around 
the filter (3) and inside the filter 
cover.
The air filter (3) is a pleated paper filter 
element.
NRemove and check the filter 
element (3) – replace if paper or 
frame is dirty or damaged.
NUnpack the new filter.
NOTICE
Do not bend or twist the filter before 
installation as it might otherwise be 
damaged – do not use damaged filters.
NFit the filter in the filter housing.
NFit 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.
Filter Element for Winter Operation
Maintenance and care of the special 
filter element for winter operation are 
described in the chapter on "Winter 
Operation".
General Information
The M-Tronic controls fuel feed and 
ignition timing electronically in all 
operating conditions.  
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.
M-Tronic ensures optimum engine 
power at all times, very good 
acceleration and automatic adjustment 
to suit changing conditions.
For this reason there is no need to 
change the carburetor setting – the 
carburetor has no adjusting screws.
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.
STIHL recommends that you have 
servicing and repair work carried out 
exclusively by an authorized STIHL 
servicing dealer.
FS 360, 410, 460
0000-GXX-0831-A0
3
2
2709BA018 KN
FS 490
3
2
M-Tronic 
						

							FS 360 C-M, FS 410 C-M, FS 460 C-M, FS 490 C-M
English
34
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 operationNRemove the screw (3) from the 
shutter.
NPull the shutter (2) out of the 
shroud.
NRotate the shutter (2) from the 
summer position to the winter 
position and refit it.
NSecure 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
NAlways 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".
Winter Operation
2
19926BA016 KN
2
9926BA017 KN
3
2
9926BA018 KN 
						

							FS 360 C-M, FS 410 C-M, FS 460 C-M, FS 490 C-M
English
35 The cover plate kit contains the following 
parts for converting the power tool:
4Cover plate partially blanks off the 
slots in the starter housing
5Air 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.
After installing the cover plate kit:
NSet the shutter (2) to the winter 
position.
At temperatures above -10°C
NRemove the parts of the cover plate 
kit and refit the standard parts for 
summer operation.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.
Depending on the ambient temperature:
NSet the shutter (2) to the summer or 
winter position.
Clean the air filter.
NLoosen filter cover mounting 
screws.
NRemove the filter cover.
NClean away loose dirt from around 
the filter (5) and inside the filter 
cover.
NKnock 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:
NWash the filter in a clean, non-
flammable solution (e.g. warm 
soapy water) and then dry.
Always replace a damaged filter.NIf the engine is down on power, 
difficult to start or runs poorly at idle 
speed, first check the spark plug.
NFit 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
NRotate the screw (1) in the cap (2) 
until the screw head projects from it.
NLift the front of the cap (2) and push 
it to the rear to disengage.
NLeave the cap to one side.
NPull off the spark plug boot (3).
NUnscrew the spark plug.
FS 360, 410, 460
4
5
0000-GXX-0836-A0
2
2709BA019 KN4
FS 4902
5
6SDUN3OXJ
1
9926BA020 KN
3
9926BA021 KN 
						

							FS 360 C-M, FS 410 C-M, FS 460 C-M, FS 490 C-M
English
36
Checking the Spark Plug
NClean dirty spark plug.
NCheck electrode gap (A) and 
readjust if necessary – see 
"Specifications".
NRectify 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
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.NUse resistor type spark plugs with a 
properly tightened adapter nut.
Installing the Spark Plug
NScrew the spark plug into the 
cylinder.
NPress the spark plug boot firmly 
onto the spark plug.
NFit 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.
NSwing the cap forwards onto the 
shroud, insert and tighten down the 
screw (4) firmly.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).
STIHL recommends that you have 
servicing and repair work carried out 
exclusively by an authorized STIHL 
servicing dealer.
000BA039 KNA
1
000BA045 KN
4
32
9926BA022 KN
(QJLQH5XQQLQJ%HKDYLRU 
						

							FS 360 C-M, FS 410 C-M, FS 460 C-M, FS 490 C-M
English
37 If the machine is to remain out of use for 
approx. 3 months or more
NDrain and clean the fuel tank in a 
well ventilated place
NDispose of fuel in accordance with 
the regulations and having regard 
for the environment
NRun the engine until the carburetor 
is dry. This helps to prevent the 
carburetor diaphragms sticking 
together.
NRemove, clean and inspect the 
cutting attachment. Treat metal 
cutting attachments with protective 
oil.
NThoroughly clean the machine
NStore the machine in a dry and safe 
place, out of the reach of children 
and other unauthorized usersNUse 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.
NSharpen frequently, take away as 
little metal as possible – two or three 
strokes of the file are usually 
enough.
NResharpen 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
NAfter 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 MachineSharpening Metal Cutting 
Blades
2
1
002BA083 KN
2
12
21 1 
						

							FS 360 C-M, FS 410 C-M, FS 460 C-M, FS 490 C-M
English
38
Placing power tool on the ground
NShut off the engine.
NLay 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.
NIf 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
NWith the engine running, hold the 
rotating mowing head above the 
grass surface.
NTap 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.
NPull the spool up – rotate it about 1/6 
turn counterclockwise until it 
engages – and allow it to spring 
back.
NPull 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 about4 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.
STIHL DuroCut, STIHL PolyCut
WARNING
To reduce the risk of injury, always shut 
off the engine before refilling the mowing 
head.
NFit nylon line in the 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.
Maintaining the Mowing 
Head
002BA406 KN