8
English / USA
HL 75, HL 75 K
Let the engine cool down sitting on 
concrete, metal, bare ground or solid 
wood (e.g. the trunk of a felled tree) 
away from any combustible substances.
!Warning!
To reduce the risk of fire or burn injury, 
let the unit cool down before refueling 
your hedge cutter after use.
!Warning!
Never disassemble or modify your 
muffler. The muffler could be damaged 
and cause an increase in heat radiation 
or sparks, thereby increasing the risk of 
fire or burn injury. You may also 
permanently damage the engine. Have 
your muffler serviced and repaired by 
your STIHL Servicing Dealer only.
!Warning!
To reduce the risk of fire or burn injury, 
keep the area around the muffler clean. 
Remove all debris such as pine needles, 
branches or leaves.
!Warning!
An improperly mounted or damaged 
cylinder housing or a damaged/
deformed muffler shell may interfere 
with the cooling effect of the catalytic 
converter. To reduce the risk of fire or 
burn injury, do not continue work with a 
damaged or improperly mounted 
cylinder housing or a damaged/
deformed muffler shell. Your catalytic 
converter is furnished with screens 
designed to reduce the risk of fire from 
the emission of hot particles. Due to the 
heat from the catalytic reaction, these 
screens will normally stay clean and 
need no service or maintenance. If you 
experience loss of performance and you 
suspect a clogged screen, have your 
muffler maintained by a STIHL Servicing 
Dealer.
Working Conditions
Do not operate using the starting throttle 
lock as you do not have control of the 
engine speed. See section of your 
owner's manual on the proper use of the 
slide control.
!Warning!
Your hedge cutter pro-
duces poisonous exhaust 
fumes as soon as the 
combustible engine is 
running.
These gases (e.g. carbon monoxide) 
may be colorless and odorless.
To reduce the risk of injury from 
inhalation of poisonous fumes, start and 
operate your hedge cutter only outdoors 
in a well ventilated area. Hold your 
hedge cutter in such a way that you do 
not breath in the exaust fumes. 
Operate the hedge cutter under good 
visibility and daylight conditions only. 
!Warning!
Make sure you always have good 
footing. Take particular care in slippery 
conditions and on slopes. Be careful on 
un-even ground. Watch out for stumps, 
roots, ditches or holes which could 
cause you to trip or stumble.