Instruction Manual

► If the cutting attachment continues to rotate:
Remove the battery and contact your STIHL
dealer for assistance.
The trimmer has a malfunction.
11.2 Testing the Battery
► Press button on battery.
The LEDs glow or flash.
► If the LEDs do not glow or flash: Do not use
the battery and contact your STIHL servicing
dealer.
There is a malfunction in the battery.
12 Operating the Trimmer
12.1 Holding and Controlling the
Trimmer
FSA 90
1
2
0000-GXX-4722-A0
► Connect the carrying ring (2) to the carabi‐
ner (1).
0000-GXX-4603-A0
► Hold the trimmer with your right hand on the
control handle – wrap your thumb around the
control handle.
► Hold the trimmer with your the left hand on the
left grip – wrap your thumb around the left grip.
FSA 90 R
1
2
0000-GXX-4722-A0
► Connect the carrying ring (2) to the carabi‐
ner (1).
If you are using a mowing head:
0000-GXX-4604-A0
► Hold the trimmer with one hand on the control
handle – wrap your thumb around the control
handle.
► Hold the trimmer with your other hand on the
loop handle – wrap your thumb around the
loop handle.
If you are using a metal cutting attachment:
0000-GXX-4605-A0
► Hold the trimmer with your right hand on the
control handle – wrap your thumb around the
control handle.
► Hold the trimmer with your left hand on the
loop handle – wrap your thumb around the
loop handle.
12.2 Setting the Power Level
The power level is infinitely variable to suit the
application. The higher the power level, the
faster the cutting attachment can run.
The selected power level affects the battery’s
runtime. The lower the power level, the longer
the battery’s runtime.
12 Operating the Trimmer English
0458-709-9821-D 39