Stihl HL 91 K Instruction Manual - Page 25

Lubricating the Gearbox

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0000-GXX-1831-A0 0208BA039 KN 0000-GXX-1776-A0 1 2 1 English Lubricating the Gearbox Blade Drive Gear 3 N Fit the cap (1), insert the screw (2) and tighten it down firmly. Lubricate the blade drive gear with STIHL gear lubricant for hedge trimmers 2 - see "Special Accessories". HL 0° version WARNING To reduce the risk of fire and burn injury, use only spark plugs authorized by STIHL. Always press the spark plug boot (1) snugly onto the spark plug terminal (2). Do not use a spark plug with a detachable SAE adapter terminal (3). Arcing may occur that could ignite combustible fumes and cause a fire. This can result in serious injuries or damage to property. N Only use resistor type spark plugs with solid, non-threaded terminals Installing the Spark Plug N Fit the spark plug and tighten it down firmly. N Press the boot firmly onto the spark plug. HL 91 K N Check the lubricant level at regular intervals of about every 25 hours of operation. Unscrew the filler plug (1) - if no grease can be seen on the inside of the filler plug, screw the tube of grease into the filler hole. N Squeeze up to 10 g (2/5 oz) grease into the gearbox. NOTICE Do not completely fill the gearbox with grease. N Unscrew the tube of grease from the filler hole. N Refit the filler plug and tighten it down firmly. 23

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HL 91 K
English
23
WARNING
To reduce the risk of fire and burn injury,
use only spark plugs authorized by
STIHL. Always press the spark plug
boot (1) snugly onto the spark plug
terminal (2).
Do not use a spark plug with a
detachable SAE adapter terminal (3).
Arcing may occur that could ignite
combustible fumes and cause a fire.
This can result in serious injuries or
damage to property.
N
Only use resistor type spark plugs
with solid, non-threaded terminals
Installing the Spark Plug
N
Fit the spark plug and tighten it
down firmly.
N
Press the boot firmly onto the spark
plug.
N
Fit the cap (1), insert the screw (2)
and tighten it down firmly.
Blade Drive Gear
Lubricate the blade drive gear with
STIHL gear lubricant for hedge trimmers
– see "Special Accessories".
HL 0° version
N
Check the lubricant level at regular
intervals of about every 25 hours of
operation. Unscrew the filler
plug (1) – if no grease can be seen
on the inside of the filler plug, screw
the tube of grease into the filler hole.
N
Squeeze up to 10 g (2/5 oz) grease
into the gearbox.
NOTICE
Do not completely fill the gearbox with
grease.
N
Unscrew the tube of grease from the
filler hole.
N
Refit the filler plug and tighten it
down firmly.
2
1
0000-GXX-1831-A0
3
1
2
0208BA039 KN
Lubricating the Gearbox
0000-GXX-1776-A0