HS 46, HS 46 C, HS 56 C
English
16
Exhaust emissions are controlled by the
design of the fundamental engine
parameters and components (e.g.
carburation, ignition, timing and valve or
port timing) without the addition of any
major hardware.
General Information
The carburetor comes from the factory
with a standard setting.
This setting provides an optimum fuel-air
mixture under most operating
conditions.
With this carburetor it is only possible to
adjust the high speed and low speed
screws within fine limits.
Standard Setting
N Stopping the Engine
N Inspect cutting blades and clean if
necessary (clean, move freely, not
warped).
N Check the air filter and clean or
replace if necessary.
N Check the spark arresting screen
(not in all models, country-specific)
in the muffler and clean or replace if
necessary.
N Turn high speed screw (H)
counterclockwise as far as stop (no
more than 3/4 turn).
N Turn the low speed screw (L)
carefully counterclockwise as far as
stop (no more than 3/4 turn).
N Start and warm up the engine.
Adjusting Idle Speed
Engine stops while idling
N Carry out the standard setting.
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 Carry out the standard setting.
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.
If the cutting blades continue moving
when the engine is idling, have your
hedge trimmer checked and repaired by
your servicing dealer.
Engine Management Adjusting the Carburetor
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