Stihl Fs 450 K Manual

Instruction Manual    
Manual de instrucciones
Warning!
Read and follow all safety precautions in 
Instruction Manual – improper use can cause 
serious or fatal injury.
Advertencia!
Lea y siga todas las precauciones de 
seguridad dadas en el manual de 
instrucciones – el uso incorrecto puede 
causar lesiones graves o mortales.
STIH)
STIHL FS 300, 350, 400, 450, 480 

1 FS 300, FS 350, FS 400, FS 450, FS 480English / USA
BA_SE_081_009_01_07.fm Printed on chlorine-free paper.
Printing inks contain vegetable oils; paper can be recycled. © ANDREAS STIHL AG & Co. KG, 2008 
0458 255 8621 A. M0.5. B8. Rei. Printed in Germany 
STIHlContentsGuide to Using this Manual  ..............  2
Safety Precautions and 
Working Techniques  .........................  3
Approved Combinations of 
Cutting Tool, Deflector, 
Stop and Harness  ...........................  18
Mounting the Bike...

2 English / USA
FS 300, FS 350, FS 400, FS 450, FS 480PictogramsAll the pictograms attached to the 
machine are shown and explained in  
this manual.
The operating and handling instructions 
are supported by illustrations.Symbols in textThe individual steps or procedures 
described in the manual may be marked 
in different ways:
:A bullet marks a step or procedure 
without direct reference to an 
illustration. 
A description of a step or procedure that 
refers directly to an illustration may 
contain...

3 FS 300, FS 350, FS 400, FS 450, FS 480English / USA
Warning!
Because a clearing saw is 
a high-speed, fast-cutting 
power tool, special safety 
precautions must be 
observed to reduce the risk of personal 
injury.
It is important that you 
read, fully understand and 
observe the following 
safety precautions and 
warnings. Read the 
owners manual and the 
safety instructions periodically. Careless 
or improper use of any clearing saw may 
cause serious or fatal injury.
Have your STIHL dealer show you...

4 English / USA
FS 300, FS 350, FS 400, FS 450, FS 480!
Warning!
Prolonged use of a clearing saw (or 
other machines) exposing the operator 
to vibrations may produce whitefinger 
disease (Raynauds phenomenon) or 
carpal tunnel syndrome. 
These conditions reduce the hands 
ability to feel and regulate temperature, 
produce numbness and burning 
sensations and may cause nerve and 
circulation damage and tissue necrosis.
All factors which contribute to white-
finger disease are not known, but cold...

5 FS 300, FS 350, FS 400, FS 450, FS 480English / USA
!
Warning!
To reduce the risk of injury 
to your eyes never 
operate a clearing saw 
unless wearing goggles or 
properly fitted safety 
glasses with adequate top 
and side protection complying with ANSI 
Z 87.1 (or your applicable national 
standard). To reduce the risk of injury to 
your face STIHL recommends that you 
also wear a face shield or face screen 
over your goggles or safety glasses.
!
Warning!
Clearing saw noise may 
damage your hearing....

6 English / USA
FS 300, FS 350, FS 400, FS 450, FS 480THE USE OF THE 
CLEARING SAWTransporting the clearing saw!
Warning!
Always turn off the engine and make 
sure the cutting attachment has stop-
ped before putting a clearing saw down. 
When transporting your clearing saw in 
a vehicle, properly secure it to prevent 
turnover, fuel spillage and damage to the 
clearing saw. Keep metal cutting tools 
covered with the transport guard 
(optional accessory). 
Preparation for the use of the clearing 
saw...

7 FS 300, FS 350, FS 400, FS 450, FS 480English / USA
In order to reduce the risk of burns and 
other personal injury from escaping gas 
vapor and fumes, remove the fuel filler 
cap on your clearing saw carefully so as 
to allow any pressure build-up in the 
tank to release slowly. Never remove 
fuel filler cap while engine is running. 
Select bare ground for fueling and move 
at least 10 feet (3 m) from the fueling 
spot before starting the engine. Wipe off 
any spilled fuel before starting your...

8 English / USA
FS 300, FS 350, FS 400, FS 450, FS 480 Keep the deflector (and the skirt where 
appropriate) adjusted properly at all 
times (see chapter on mounting the 
various cutting tools of your owners 
manual).
Starting!
Warning!
Your clearing saw is a one-person 
machine. Once started, it may fling 
foreign objects for a great distance.
To reduce the risk of eye and other injury 
insure that bystanders are at least 
50 feet (15 m) away. Bystanders should 
be encouraged to wear eye protection....

9 FS 300, FS 350, FS 400, FS 450, FS 480English / USA
Let the engine cool down sitting on 
concrete, metal, bare ground or solid 
wood (e.g. the trunk of a felled tree) 
away from any combustible substances.
!
Warning!
To reduce the risk of fire or burn injury, 
let the unit cool down before refueling 
your clearing saw after use.
!
Warning!
Never disassemble or modify your 
muffler. The muffler could be damaged 
and cause an increase in heat radiation 
or sparks, thereby increasing the risk 
of fire or...