Only machines with high speed
screw (H)
Operation at High Altitude
A slight correction of the setting may be
necessary if engine power is not
satisfactory:
:
Check the standard setting.
:
Warm up the engine.
:
Turn high speed screw (H) slightly
clockwise (leaner) – no further than
stop.
If the setting is too lean there is
a risk of engine damage due to
insufficient lubrication and
overheating.
MS 280 C
Machines with Intelligent Engine
Management
The carburetor adjusts automatically to
any change in operating conditions (e.g.
cutting at high altitude).
The automatic adjustment process can
be speeded up as follows:
:
Run the engine for about 10
seconds at full throttle – with the
chain and bar mounted.
:
Perform five uniform cross cuts at
full throttle.
English / USA
Spark Arresting Screen*
in Muffler
:
If the engine is low on power, check
the spark arresting screen in the
muffler.
:
Allow muffler to cool down.
Remove the screw (1).
Pull out spark arresting screen (2).
:
Clean spark arresting screen if
necessary – if screen is damaged or
coked up, fit a new one.
:
Refit the spark arresting screen.
:
Insert screw and tighten down.
*
see "Guide to Using this Manual"
2
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