WARNING LABELS AND PICTOGRAMS SAFETY (9) Precautions for broken or dislodged window (20U- 98-21910) (10) The safety lock is operated with the lock lever (22L-98-18240) (11) Cautions for emergency work equipment actua- tion switch (21W-98-21521) (12) Cautions for handling interference prevention device (21W-98-21420) 2-8