8
English / USA
KM 90, KM 90 R
!Warning!
Your power tool is a one-person 
machine. Do not allow other persons in 
the general work area, even when 
starting.
!Warning!
To reduce the risk of injury from loss of 
control, do not attempt to “drop start” 
your power tool.
!Warning!
When you pull the starter grip, do not 
wrap the starter rope around your hand. 
Do not let the grip snap back, but guide 
the starter rope to rewind it properly. 
Failure to follow this procedure may 
result in injury to your hand or fingers 
and may damage the starter 
mechanism.
See also the safety precautions on 
Starting in the instruction manual of the 
KombiTool.
Important Adjustments
!Warning!
To reduce the risk of personal injury from 
loss of control or contact with the 
running working tool, do not use a power 
tool with incorrect idle adjustment. At 
correct idle speed, the working tool 
should not move. For directions on how 
to adjust idle speed, see the appropriate 
section of your instruction manual. If you 
cannot set the correct idle speed, have 
your STIHL dealer check your power 
tool and make proper adjustments and 
repairs.
During Operation
Holding and controlling the power 
tool
Always hold the unit firmly with both 
hands on the handles while you are 
working. Wrap your fingers and thumbs 
around the handles.
Your right hand should grip the rear 
handle. This also applies to left-handers.
Working conditions
Operate and start your power tool only 
outdoors in a well ventilated area. 
Operate it under good visibility and 
daylight conditions only. Work carefully.
!Warning!
As soon as the engine is 
running, this product 
generates toxic exhaust 
fumes containing 
chemicals (such as 
unburned hydrocarbons 
and carbon monoxide) known to cause 
respiratory problems, cancer, birth 
defects, or other reproductive harm. 
Some of the gases (e.g. carbon 
monoxide) may be colorless and 
odorless. To reduce the risk of serious or 
fatal injury/illness from inhaling toxic 
fumes, never run the machine indoors or 
in poorly ventilated locations.
Operating instructions
!Warning!
Do not operate your power tool using the 
starting throttle lock, as you do not have 
control of the engine speed.
In the event of an emergency, switch off 
the engine immediately – move the slide 
control / stop switch to 0 or STOP.
002BA057 KN