JLG X23J - X700AJ Service Manual - Manual (Page 136)

SECTION 3 - CHASSIS & TURNTABLE
3121448 – JLG Lift – 3-109
Figure 3-188. Permissible flatness deviation of the
mounting structure
δp = flatness deviation
max. δp = maximum flatness deviation
U = circumference
• The maximum residual value for flatness deviation δp
in the circumferential direction should only be reached
once on half of the circumference. The gradient must
look like a sinus curve that slowly rises or falls.
Perpendicularity deviation
Figure 3-189. Perpendicularity deviation