Testing The Trimmer And Battery; Operating The Trimmer - Stihl FSA 120.0 Instruction Manual

12 Testing the Trimmer and Battery

► Hold the brushcutter with your left hand on the
handle so that your thumb wraps around the
handle.
► Press and hold the ergo lever (1) with your
hand.
► Press the unlock button (4).
► Press and hold the trigger (3) with your index
finger.
The brushcutter accelerates and the cutting
attachment rotates.
The more the trigger (3) is depressed, the faster
the rotation of the cutting attachment.
At the maximum power level, the brushcutter rec‐
ognizes the cutting attachment used and auto‐
matically sets the maximum speed.
11.2 Switching off the brushcutter
► Release the trigger and the Ergo lever.
► Wait for the cutting attachment to stop rotat‐
ing.
► If the cutting attachment continues to rotate:
Remove the battery and contact your STIHL
dealer.
The brushcutter is defective.
12 Testing the Trimmer and
Battery
12.1 Checking the controls
Unlock button, ergo lever and trigger
► Remove the battery.
► Try pressing the trigger without pressing the
ergo lever.
► If you can press the trigger: Stop using your
brushcutter and contact a STIHL authorized
dealer.
The trigger lockout is defective.
► Press and hold the ergo lever.
► Press and release the trigger.
► If the trigger, ergo lever or unlock button is stiff
or does not spring back to the initial position:
Do not use your brushcutter and contact a
STIHL authorized dealer for assistance.
The trigger, ergo lever or unlock button is
defective.
Switching on the brushcutter
► Insert battery.
► Press and hold the ergo lever.
► Press the unlock button.
► Press and hold the trigger.
The cutting attachment rotates.
0458-028-0101-A
► If 3 LEDs on the battery flash red: Remove the
battery and contact a STIHL authorized
dealer.
The brushcutter has a malfunction.
► Release the trigger.
The cutting attachment stops rotating after a
short period of time.
► If the cutting attachment continues to rotate:
Remove the battery and contact a STIHL
authorized dealer.
The brushcutter is defective.
12.2 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.

13 Operating the Trimmer

13.1 Holding and guiding the brush‐
cutter
► Connect the carrying ring (2) to the carabi‐
ner (1).
► Hold the brushcutter firmly with your right hand
on the control handle so that your thumb
wraps around the grip of the control handle.
► Hold the brushcutter with your the left hand on
the handle so that your thumb wraps around
the handle.
13.2 Setting the power level
Depending on the application, 2 power levels
can be set. The position of the power level
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