FC 90
English
3
Have your STIHL dealer show you how 
to operate your power tool. Observe all 
applicable local safety regulations, 
standards and ordinances.
Use your edger only for edging in grass, 
weeds and soft green plants.
Most of these safety precautions and 
warnings apply to the use of all STIHL 
edgers. Different models may have 
different parts and controls. See the 
appropriate section of your instruction 
manual for a description of the controls 
and function of the parts of your model.
Safe use of an edger involves
1. the operator
2. the power tool
3. the use of the power tool.
THE OPERATOR
Physical Condition
You must be in good physical condition 
and mental health and not under the 
influence of any substance (drugs, 
alcohol, etc.) which might impair vision, 
dexterity or judgment. Do not operate 
this machine when you are fatigued.
Safety Precautions and 
Working Techniques
Because an edger is a 
high-speed, fast-cutting 
power tool, special safety 
precautions must be 
observed to reduce the 
risk of personal injury.
It is important that you 
read, fully understand 
and observe the following 
safety precautions and 
warnings. Read the 
instruction manual and 
the safety precautions 
periodically. Careless or 
improper use may cause 
serious or fatal injury.
Warning!
As more fully explained later in these 
Safety Precautions, to reduce the risk of 
personal injury, make sure your unit is 
equipped with the proper handle, har-
ness and deflector. Use only cutting 
attachments that are specifically author-
ized by STIHL for use on your FC 
model.
Warning!
Do not lend or rent your power tool with-
out the instruction manual. Be sure that 
anyone using it understands the infor-
mation contained in this manual.
Warning!
The use of this machine may be hazard-
ous. If the rotating blade comes in 
contact with your body, it will cut you. 
When it comes in contact with solid for-
eign objects such as rocks or bits of 
metal, it may fling them directly or by ric-
ochet in the direction of bystanders or 
the operator. Striking such objects could 
damage the cutting attachment and may 
cause blades to crack, chip or break. 
Thrown objects, including broken 
blades, may result in serious or fatal 
injury to the operator or bystanders.
Warning!
Do not use it for other purposes, since 
misuse may result in personal injury or 
property damage, including damage to 
the machine.
Warning!
Minors should never be allowed to use 
this power tool. Bystanders, especially 
children, and animals should not be 
allowed in the area where it is in use.
Warning!
To reduce the risk of injury to bystand-
ers and damage to property, never let 
your power tool run unattended. When it 
is not in use (e.g. during a work break), 
shut it off and make sure that unauthor-
ized persons do not use it.
Warning!
Be alert – if you get tired, take a break. 
Tiredness may result in loss of control. 
Working with any power tool can be 
strenuous. If you have any condition 
that might be aggravated by strenuous 
work, check with your doctor before 
operating this machine.
Warning!
Prolonged use of a power tool (or other 
machines) exposing the operator to 
vibrations may produce whitefinger dis-
ease (Raynaud's phenomenon) or 
carpal tunnel syndrome.