Fuel - Stihl FS 490 C-M Instruction Manual

English
Check direction of rotation of cutting
attachment
Cutting edges of circular saw blades
must point clockwise.
4
3
2
b
a
Place the cutting attachment (1) in
N
position.
WARNING
Collar (a) must locate in the cutting
attachment's mounting hole (b).
24
Securing the cutting attachment
Fit the thrust washer (2) – convex
N
side must face up.
Fit the rider plate (3).
N
A rider plate (3) for sawing applications
is available as a special accessory. It
allows the full depth of cut of the saw
blade to be used.
Block the shaft.
N
Fit the nut (4) counterclockwise and
N
tighten it down firmly.
WARNING
If the mounting nut has become too
loose, fit a new one.
NOTICE
1
Remove the tool used to block the shaft.
Removing the cutting attachment
Block the shaft.
N
Unscrew the mounting nut
N
clockwise.
Pull the cutting attachment with its
N
mounting hardware off the gearbox.

Fuel

Your engine requires a mixture of
gasoline and engine oil.
WARNING
For health reasons, avoid direct skin
contact with gasoline and avoid inhaling
gasoline vapor.
STIHL MotoMix
STIHL recommends the use of STIHL
MotoMix. This ready-to-use fuel mix
contains no benzol or lead, has a high
octane rating and ensures that you
always use the right mix ratio.
STIHL MotoMix uses STIHL HP Ultra
two-stroke engine oil for an extra long
engine life.
MotoMix is not available in all markets.
Mixing Fuel
NOTICE
Unsuitable fuels or lubricants or mix
ratios other than those specified may
result in serious damage to the engine.
Poor quality gasoline or engine oil may
damage the engine, sealing rings, hoses
and the fuel tank.
Gasoline
Use only high-quality brand-name
gasoline with a minimum octane rating
of 90 – leaded or unleaded.
FS 360 C-M, FS 410 C-M, FS 460 C-M, FS 490 C-M