Jonsered 1250RZ Operator's Manual page 23

Safety precautions and warnings
Close the tool
Move both hands close together.
Lift the open tool a little
Extend both arms at shoulder height, with the palms facing
upwards. Make vertical movements with both arms
outstretched.
Keep the tool in position briefly
Raise the hand drooping slightly, with the fist clenched.
Jonsered 1250RZ -1500RZ safety+R CE 23