JLG 1850SJ Operator Manual - Manual (Page 120)

SECTION 5 - LCD DISPLAY PANEL
5-20 – JLG Lift – 3121618
5.16 JIB LOCKED
When the boom control system senses jib is locked ONLY for the
first time, the display will show the Jib Locked image on the
machine status tray for 3 seconds.
The display will show a different image on the machine status
tray after 3 seconds have elapsed.
Figure 5-19. Jib Locked Screen