Ryobi P521 Operator's Manual page 13

SPLINTER-FREE CUTTING
See Figure 8.
The base of the jig saw has a narrow slot to permit splinter-
free cutting. It is especially useful when cutting plywood. This
feature should only be used when making straight cuts or
circle cuts. It is not for bevel cutting or plunge cutting.
NOTE: The non-orbital setting also helps reduce splintering
when cutting plywood.
POSITIONING THE BASE IN THE SPLINTER-
FREE CUTTING POSITION
 Remove battery pack.
 Using the 1/8 in. hex key provided, loosen base pivot
screws and slide base forward.
 Always set the cutting angle at 0° for splinter-free cutting.
To set cutting angle at 0°, align the 0° mark on the scale
with the edge of the motor housing.
NOTE: When setting angle at 0° for splinter-free cutting,
the positive stop notches on the rear of the base are not
used.
 Tighten base pivot screws securely.
 Remove hex key and return it to the storage area.
 Replace battery pack.
OPTIONAL EDGE GUIDE
See Figure 9.
An optional edge guide is available for use with the saw. It
can be used for making cross cuts and rip cuts.
 Remove battery pack.
 Insert the arm through the two slots in the base of the
saw as shown.
 Adjust edge guide to the desired width and lock in place
with the edge guide screw.
 Replace battery pack.
OPERATION
HEX KEY
STORAGE
BASE
13
HEX KEY
BASE PIVOT SCREW
Fig. 8
EDGE GUIDE
SCREW
BASE
Fig. 9