HL 91 K
English
5
objects and must not touch the ground, 
as they may start moving when the 
machine is started up.
The machine is operated by one person 
only – there should not be any other 
person within the working area – not 
even when starting.
Avoid contact with the cutting blades – 
risk of injury!
Do not drop-start the engine – start it as 
described in the Instruction Manual. 
Note that the cutting blades continue to 
move for a short period after you let go 
of the throttle trigger – coasting effect.
Check engine idling: The cutting blades 
must remain at a standstill when the 
engine idles – throttle trigger released.
Keep easily combustible materials (e.g., 
wood chips, bark, dry grass, fuel) away 
from hot exhaust gases and the hot 
muffler surface – risk of fire!
Holding and controlling the machine
Always hold the machine by the handles 
using both hands.
Make sure you always have a good 
footing and hold the machine so that the 
cutting blades are always facing away 
from your body.
Keep your right hand on the control 
handle and your left hand on the handle 
hose on the shaft – this applies to left-
handed people as well. Wrap your 
fingers and thumbs around the handles.
While working
In the event of impending danger or in 
an emergency, switch off the engine 
immediately – push the stop button.
This distance must also be maintained in 
relation to objects (vehicles, window 
panes) – risk of property damage!
Watch the cutting blades at all times – do 
not cut areas of the hedge that you 
cannot see.
Use extreme caution when cutting tall 
hedges; someone could be standing 
behind them – look beforehand.
Check for correct idling, so that the 
blades stop moving when the throttle 
trigger is released. Check and/or correct 
the idle setting regularly. Have the 
machine repaired by a STIHL servicing 
dealer if the cutting blades continue to 
move nevertheless when idling.
Note that the cutting blades continue to 
move for a short period after you let go 
of the throttle trigger – coasting effect.
Take care on ice, water, snow, on slopes 
or uneven ground, etc. – risk of slipping!
Clear away fallen branches, scrub and 
cuttings.
Watch out for obstacles: tree stumps, 
roots – risk of tripping or stumbling!
Ensure you always have a firm and 
secure footing.
When working at heights:
– always use a lift bucket
– Never work on a ladder or in a tree
– Never work on an insecure support
– Never use the machine with just one 
hand
Be particularly alert and cautious when 
wearing hearing protection because 
your ability to hear warnings (shouts, 
alarms, etc .) is restricted.
Take a break in good time to avoid 
tiredness or exhaustion – risk of 
accidents!
This power tool is not 
insulated. Keep away 
from power cables – dan-
ger of electrocution!
No one is permitted 
within a radius of 
5 m from the opera-
tor – the moving 
cutting blades and 
falling trimmings 
pose a risk of injury!