JLG 800AJ HC3 Operation & Safety Manual page 37

To avoid tipping if this occurs: lower platform to ground using main boom lift and
telescope functions. Have condition corrected by a trained JLG service technician
before continuing use of machine.
e. Attempt to lower the tower base boom while the tower fly boom is extended.
The tower base boom should not lower and the red boom malfunction light
should illuminate when pressing the tower down switch.
Discontinue operation if the tower base boom lowers or the boom malfunction
light does not illuminate.
800AJ HC3
User Responsibilities, Machine Preparation, and Inspection
90 °
WARNING
Figure 6. Boom Upright Positioning - Incorrect
WARNING
90 °
31222411
BM000504A
37