Instruction Manual

HS 46, HS 46 C, HS 56 C
English
14
If there is a noticeable loss of engine
power
N Loosen the captive screw (1) and
remove the filter cover (2).
N Clean away loose dirt from around
the filter.
N Remove the filter element (3).
N Fit a new filter element. As a
temporary measure you can knock it
out on the palm of your hand or blow
it out with compressed air. Do not
wash.
N Replace any damaged parts.
N Fit the filter element (3).
N Fit the filter cover (2) and screw it
down firmly.
The carburetor has been set at the
factory to provide an optimum fuel-air
mixture under most operating
conditions.
Adjusting Idle Speed
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
about another full turn in the same
direction.
WARNING
If the cutting blades continue to run while
the engine is idling, have your power tool
checked and repaired by your servicing
dealer.
N If the engine is down on power,
difficult to start or runs poorly at idle
speed, first check the spark plug.
N Fit a new spark plug after about 100
operating hours – or sooner if the
electrodes are badly eroded. Install
only suppressed spark plugs of the
type approved by STIHL – see
"Specifications".
Removing the Spark Plug
N Stopping the Engine
N Carefully pry open the flap (1) with a
suitable tool (e.g. combination
wrench).
Cleaning the Air Filter
1
0008BA014 KN
2
Adjusting the Carburetor
0000-GXX-B008
L H
LA
Checking the Spark Plug
0008BA017 KN