Fuel - Stihl FT 250 Instruction Manual

English
9.4.1 Mounting the cutting attachment
5
6
8
► Place the circular saw blade (8) in position –
check direction of saw teeth (magnified view).
WARNING
Collar of thrust plate (arrows) must engage the
cutting attachment's mounting hole.
9.4.2 Securing the cutting attachment
► Fit the thrust washer (6) – convex side must
face up.
► Block the shaft.
► Screw on the nut (5) counterclockwise and
tighten it down firmly.
14
WARNING
If the mounting nut has become too loose, fit a
new one.
NOTICE
Remove the tool used to block the shaft.
9.5 Removing the Metal Cutting
Attachment
WARNING
Wear protective gloves to reduce the risk of
direct contact with the sharp cutting edges.
► Block the shaft.
► Unscrew the mounting nut clockwise.
► Take the parts off the shaft – do not remove
the thrust plate.

10 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.
10.1 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.
10.2 Mixing Fuel
NOTICE
Unsuitable fuels or lubricants or mix ratios other
than those specified may result in serious dam‐
age to the engine. Poor quality gasoline or
engine oil may damage the engine, sealing rings,
hoses and the fuel tank.
10.2.1 Gasoline
Use only high-quality brand-name gasoline with
a minimum octane rating of 90 – leaded or unlea‐
ded.
10 Fuel
0458-262-0121-C