Stihl Fs 460 Cm Manual

FS 460 C-M, FS 460 C-M L, FS 490 C-M, FS 490 C-M L
English
29
Fuel mix ages
Only mix sufficient fuel for a few days 
work, not to exceed 30 days of storage. 
Store in approved fuel-containers only. 
When mixing, pour oil into the container 
first, and then add gasoline. Close the 
container and shake it vigorously by 
hand to ensure proper mixing of the oil 
with the fuel.
Dispose of empty mixing-oil containers 
only at authorized disposal locations.
Preparations
WARNING
When fueling on a slope, always...

FS 460 C-M, FS 460 C-M L, FS 490 C-M, FS 490 C-M L
English
30 Fitting the full harness is described in 
detail in the leaflet supplied with the 
harness.
The type and style of the harness 
depend on the market.
Fitting the Harness
NPut on the full harness (1).
NAdjust the length of the strap so that 
the carabiner (2) is about a hand’s 
width below your right hip.
NAttach the carabiner to the 
machine's perforated rail (3) – see 
“Attaching Machine to Harness”.
NFind the right attachment point for...

FS 460 C-M, FS 460 C-M L, FS 490 C-M, FS 490 C-M L
English
31 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
1Throttle trigger lockout
2Throttle trigger
3Stop switch with Run and Stop 
positions. Press the momentary 
contact stop switch to switch off the...

FS 460 C-M, FS 460 C-M L, FS 490 C-M, FS 490 C-M L
English
32 The choke knob is in the normal run 
positionF.
NIf the engine is cold: Depress in the 
outer edge (arrows) of the choke 
knob (5) and then turn it to Start}.
Cranking
NPlace the unit on the ground: It must 
rest securely on the engine's guard 
plate and the deflector. Check that 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...

FS 460 C-M, FS 460 C-M L, FS 490 C-M, FS 490 C-M L
English
33
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...

FS 460 C-M, FS 460 C-M L, FS 490 C-M, FS 490 C-M L
English
34
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).NRemove the filter cover (2).
NClean away loose...

FS 460 C-M, FS 460 C-M L, FS 490 C-M, FS 490 C-M L
English
35 Exhaust emissions are controlled by the 
design of the engine and components 
(e.g. carburation, ignition, timing and 
valve or port timing).
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}...

FS 460 C-M, FS 460 C-M L, FS 490 C-M, FS 490 C-M L
English
36 NRemove 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 
+50 °F (+10 °C) and +70 °F (+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....

FS 460 C-M, FS 460 C-M L, FS 490 C-M, FS 490 C-M L
English
37 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. 
Cleaning 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...

FS 460 C-M, FS 460 C-M L, FS 490 C-M, FS 490 C-M L
English
38 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.
Wrong fuel mix (too much engine oil in 
the gasoline), a dirty air filter and 
unfavorable running conditions (mostly 
at part throttle etc.) affect the condition 
of the spark plug. These factors cause 
deposits to form on the insulator nose 
which may result in trouble in operation.
If...