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HS 46, HS 46 C, HS 56 C
English
15
Adjusting Idle Speed
N Carry out the standard setting.
N Start and warm up the engine.
Engine stops while idling
N Turn the idle speed screw (LA)
clockwise until the cutting blades
begin to run – then back it off
about 1 full turn.
Cutting blades run when engine is idling
N Turn the idle speed screw (LA)
counterclockwise until the cutting
blades stop moving – then turn it
another 1 full turn in the same
direction.
WARNING
If the cutting blades continue moving
when the engine is idling, have your
hedge trimmer checked and repaired by
your servicing dealer.
Erratic idling behavior, poor acceleration
(despite correction to setting of LA
screw).
Idle setting is too lean
N Rotate the low speed screw (L)
about 1/4 turn counterclockwise, no
further than stop, until the engine
runs and accelerates smoothly.
Machine stops when it is swung at idle
speed
Idle setting is too rich
N Rotate the low speed screw (L)
about 1/4 turn clockwise until the
engine idles smoothly.
It is usually necessary to change the
setting of the idle speed screw (LA) after
every correction to the low speed
screw (L).
Fine Tuning for Operation at High
Altitude
A slight correction of the setting may be
necessary if engine does not run
satisfactorily:
N Carry out the standard setting.
N Warm up the engine.
N Turn high speed screw (H) slightly
clockwise (leaner) – no further than
stop.
NOTICE
After returning from high altitude, reset
the carburetor to the standard setting.
If the setting is too lean there is a risk of
engine damage due to insufficient
lubrication and overheating.
In some countries the muffler is
equipped with a spark arresting screen.
N If the engine is down on power or
maximum speed is irregular, check
the spark arresting screen in the
muffler.
WARNING
Wait for the engine to cool down
completely before performing this work.
N Use a 15 mm socket wrench to
unscrew the spark arresting screen.
N Clean the spark arresting screen. If
the screen is damaged or heavily
carbonized, fit a new one.
N Refit the spark arresting screen and
tighten it down firmly.
Spark Arresting Screen in
Muffler
0008BA015 KN
17


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