Stihl HS 46 Instruction Manual page 22

English
2
Remove the spark plug boot (2)
N
using a suitable tool (e.g.
combination wrench).
Unscrew the spark plug.
N
Checking the Spark Plug
Clean dirty spark plug.
N
Check electrode gap (A) and
N
readjust if necessary – see
"Specifications."
Use only resistor type spark plugs of
N
the approved range.
Rectify problems that have caused
fouling of spark plug:
too much oil in fuel mix,
–
dirty air filter,
–
unfavorable running conditions, e.g.
–
operating at part load.
20
WARNING
To reduce the risk of fire and burn injury,
use only spark plugs authorized by
STIHL. Always press spark plug boot (1)
A
snugly onto spark plug terminal (2) of the
proper size. (Note: If terminal has
detachable SAE adapter nut, it must be
securely attached.) A loose connection
between spark plug boot and ignition
wire connector in the boot may create
arcing that could ignite combustible
fumes and cause a fire.
Installing the Spark Plug
Insert and screw home the spark
N
plug by hand.
Tighten down the spark plug.
N
Press the spark plug boot firmly
N
onto the spark plug.
1
Close the flap (1), top first, then the
N
bottom, tabs (arrows) must snap
into position.
2
HS 46, HS 46 C, HS 56 C