Ryobi P552 Operator's Manual page 27

CUTTING WARPED MATERIAL
See Figures 32 - 33.
When cutting warped material, always make sure it is
positioned on the miter table with the convex side against
the fence as shown in figure 32.
If the warped material is positioned the wrong way as shown
in figure 33, it will pinch the blade near the completion of
the cut.
WARNING:
To avoid a kickback and to avoid serious personal injury,
never position the concave edge of bowed or warped
material against the fence.
OPERATION
RIGHT
Fig. 32
27 – English
WRONG
Fig. 33