Ryobi RTS21 Operator's Manual page 17

TO CHECK SAW BLADE INSTALLATION
See Figure 12.
CAUTION:
To work properly, the saw blade teeth must point down
toward the front of the saw. Failure to do so could cause
damage to the saw blade, the saw, or the workpiece.
 Unplug the saw.
 Lower the saw blade and remove the throat plate.
 Make sure the bevel locking lever is securely pushed
to the left, see figure 29. Raise the saw blade to its full
height by turning the height/bevel adjusting handwheel
clockwise.
 Place riving knife in "up" position.
To loosen the blade:
 Remove the blade wrench from the blade wrench storage
area.
 Using blade wrenches, place the flat open end of a blade
wrench on the flats on the arbor shaft.
 Insert the closed end of the blade wrench over the blade
nut. Holding both wrenches firmly, pull the wrench (right
side) forward to the front of the machine.
To tighten the blade:
 Using the blade wrench, place the flat open end into the
flats on the arbor shaft.
 Insert the closed end of the blade wrench over the blade
nut. Holding both wrenches firmly, push the wrench (right
side) to the back of the machine. Make sure the blade nut
is securely tightened. Do not overtighten.
 Reinstall the throat plate.
 Check all clearances for free blade rotation.
TO INSTALL THE ANTI-KICKBACK PAWLS AND
BLADE GUARD
See Figures 13 - 15.
WARNING:
Replace dull or damaged anti-kickback pawls. Dull or
damaged pawls may not stop a kickback increasing the
risk of serious personal injury.
Anti-kickback pawls should only be installed for through
cuts.
 Unplug the saw.
 Raise the saw blade by turning the height/bevel adjusting
handwheel clockwise.
 Place riving knife in "up" position.
 Reinstall the throat plate.
To install anti-kickback pawls:
 Press and hold the button on the right side of the anti-
kickback pawls.
ASSEMBLY
BLADE
WRENCH
PAWL
HANDLE
ANTI-KICKBACK
PAWLS
17
BUTTON
BLADE
GUARD
BLADE
WRENCH
BLADE
NUT
Fig. 12
Fig. 13
GUARD
LEVER
Fig. 14