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.
HL 90 K
Lubricating the
Gearbox
Lubricate the blade drive gear with
STIHL gear lubricant for hedge trimmers
– see "Special Accessories".
1
:
Check the lubricant level at regular
intervals of 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.
English / USA
Lubricate the angle drive with STIHL
gear lubricant for brushcutters – see
"Special Accessories".
:
Check the lubricant level at regular
intervals of about every 25 hours of
operation.
:
Unscrew the filler plug (2).
:
If no grease can be seen on the
inside of the filler plug, screw the
tube of grease into the filler hole.
:
Squeeze up to 5 g (1/5 oz) grease
into the gearbox.
Do not not completely fill the
gearbox with grease.
:
Refit the filler plug and tighten it
down firmly.
25