Stihl HL 91 K Instruction Manual page 8

English
Work calmly and carefully – in daylight
conditions and only when visibility is
good. Take care not to endanger other
people.
Your power tool produces
toxic exhaust fumes as
soon as the engine starts
running. These gases
may be colorless and
odorless and may contain
unburnt hydrocarbons
and benzene. Never use
the machine indoors or in
poorly ventilated areas –
even if your model is
equipped with a catalytic
converter.
To reduce the risk of serious or fatal
injury from breathing toxic fumes,
ensure proper ventilation when working
in trenches, hollows or other confined
locations.
If you feel sick, have a headache, vision
problems (e.g., your field of vision gets
smaller), hearing problems, dizziness or
inability to concentrate, stop work
immediately. Such symptoms may be
caused by an excessively high
concentration of exhaust emissions –
risk of accident!
Keep the noise and exhaust emissions
to a minimum – do not let the engine run
unnecessarily and only open the throttle
when actually working.
No smoking when working with or near
the machine – risk of fire! Combustible
fuel vapor may escape from the fuel
system.
6
Dust, fumes and smoke produced while
working may be hazardous to health.
Wear respiratory protection in the
presence of major dust or smoke.
The gearbox becomes
hot during operation.
Never touch the gear
housing – risk of burns!
If the machine has been exposed to
stress due to improper use (e.g. forceful
impact from a blow or fall), test the
machine for safe-to-operate condition
before continuing work, in every case –
see also "Before start-up". Check the
fuel system for leaks and make sure the
safety devices are working properly. Do
not continue operating a machine which
is damaged. In case of doubt, have the
unit checked by your servicing dealer.
Do not work with the throttle trigger in
the starting throttle position – in that
position of the throttle trigger, the engine
speed cannot be controlled.
Inspect the hedge and work area to
avoid damaging the cutting blades:
Remove stones, rocks, pieces of
–
metal and other solid objects
When working close to the ground,
–
make sure that no sand, grit or
stones get between the blades
Take particular care when cutting
–
hedges next to or against wire
fences
Do not touch electric power lines – never
cut through electric power lines – risk of
electrocution!
Do not touch the cutting
blades while the engine is
running. If the cutting
blades become jammed
by an object, switch off
the engine immediately
before attempting to
remove the object – risk
of injury!
Opening the throttle when the blades are
jammed increases the load and reduces
the working speed of the engine. The
constant slipping of the clutch causes
overheating and damage to important
components (e.g. clutch, plastic housing
parts) – thus e.g. due to the blade
moving during idling – risk of injury!
If the hedge is very dusty or dirty, spray
the blades with STIHL resin solvent from
time to time during cutting. This helps
reduce blade friction as well as the
aggressive effects of sap and the build-
up of dirt particles.
Before leaving the machine unattended:
Switch off engine.
Check the cutting blades at regular short
intervals during operation or
immediately if there is a noticeable
change in cutting behavior:
Switch off engine
–
Wait for cutting blades to come to a
–
standstill
Check condition and tightness; look
–
for cracks
Check sharpness
–
Always clean plant residue, chips,
leaves and excess lubricant off the
engine and muffler – risk of fire!
HL 91 K