JLG 340AJ Operation And Safety Manual page 60

SECTION 4 - MACHINE OPERATION
MAIN BOOM
MAIN BOOM
FULLY EXTENDED
HORIZONTAL
MACHINE WILL "TIP OVER" IN THIS
DIRECTION IF OVERLOADED OR
OPERATED ON AN LOWER BOOM
FULLY ELEVATED
OUT-OF-LEVEL SURFACE
Figure 4-1. Position of Least Forward Stability
4-4 – JLG Lift – 3121258