0458-722-8621-A
30
English 
17 During Operation
To test the retaining latch, trigger switch lockout and trigger 
switch:
► Remove the connecting cord.
► Unlock the retaining latch by pushing it forward with your 
thumb.
► Hold the retaining latch in the unlocked position.
► Depress the trigger switch lockout and the trigger switch 
momentarily.
► Release the retaining latch, trigger switch lockout and 
trigger switch.
The retaining latch, trigger switch lockout and trigger 
switch should return to their respective locked positions. If 
they do not, take the hedge trimmer to an authorized 
STIHL servicing dealer to be repaired before use.
If you can depress the trigger switch without first unlocking 
the retaining latch and depressing the trigger switch 
lockout, take the hedge trimmer to an authorized STIHL 
servicing dealer to be repaired before use.
Switch Lever (1)
WARNING
To reduce the risk of serious or fatal injuries, keep hands, 
feet and other parts of the body away from the cutting 
blades. Do not touch the cutting blades while the connecting 
cord is inserted. Never touch moving cutting blades with 
your hand or any part of your body, @ 6.5.2. Keep 
bystanders out of the area while testing the controls.
To test the switch lever:
► Insert the connecting cord into the hedge trimmer socket.
► Hold the hedge trimmer firmly with both hands, your 
fingers wrapped tightly around the handles.
► Unlock the retaining latch by pushing it forward with your 
thumb.
► Hold the retaining latch in the unlocked position.
► Depress the trigger switch lockout and the trigger switch 
only. Do not depress the switch lever.
The cutting blades should not start moving. If they do start 
moving, take the hedge trimmer to an authorized STIHL 
servicing dealer to be repaired before use.
► Next, hold the hedge trimmer firmly with both hands, your 
fingers wrapped tightly around the handles. Switch on the 
hedge trimmer by depressing the trigger switch lockout, 
the trigger switch and the switch lever momentarily. The 
blades should start moving. Release the trigger switch or 
switch lever. The blades should stop moving.
If the cutting blades do not start when you depress the 
trigger switch and switch lever, or if they do not stop after 
you release the trigger switch or switch lever, remove the 
connecting cord and take the hedge trimmer to an 
authorized STIHL servicing dealer to be repaired before use.
17.1 Selecting the Power Level
The unit can be operated at three different power settings, 
indicated by LEDs on the control handle. The higher the 
power level, the faster the cutting blades will move.
To set the power level:
► Push the retaining latch (1) forward with your thumb.
The LEDs indicate the power level.
► Push the retaining latch forward, hold it for approximately 
1 second to activate the next power level.
Performing this operation at the highest power level will 
cause the unit to return to the first power level.
Generally, battery life will be shorter when operating the 
hedge trimmer continuously at the higher power levels.
17 During Operation