If engine is down on power, difficult to
start or runs poorly at idling speed, first
check the spark plug.
:
Remove spark plug – see "Starting /
Stopping the Engine".
:
Clean dirty spark plug.
:
Check electrode gap (A) and
readjust if necessary – see
"Specifications".
:
Use only resistor type spark plugs
of the approved range.
Rectify problems which have caused
fouling of spark plug:
:
Too much oil in fuel mix.
:
Dirty air filter.
:
Unfavorable running conditions,
e.g. operating at part load.
Fit a new spark plug after approx.
100 operating hours
or earlier if the electrodes are badly
eroded.
HL 100
1
To reduce the risk of fire and burn
injury, use only spark plugs
authorized by STIHL. Always press
spark plug boot (2) snugly onto
spark plug terminal (1) of the proper
size. (Note: If terminal has
detachable SAE adapter nut, it must
be 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.
English / USA
Lubricating the
Gearbox
Lubricate the blade drive gear with
STIHL gear lubricant for hedge trimmers
– see "Special Accessories".
The position of the filler plug may be
different on some models.
About every 25 hours of operation
:
Unscrew the filler plug (1).
:
Screw the tube of grease into the
filler hole.
:
Sqeeze up to 5 g (1/5 oz) grease
into the gearbox.
:
Refit the filler plug and tighten it
down firmly.
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