Ryobi BTS21 - Manual (Page 35)

35
ADJUSTMENTS
WARNING:
Before performing any adjustment, make sure the tool is
unplugged from the power supply and the switch is in the
OFF position. Failure to heed this warning could result in
serious personal injury.
WARNING:
Blades coast after turn off. Possible serious injury can
occur if hands come in contact with blade.
The table saw has been adjusted at the factory for making
very accurate cuts. However, some of the components might
have been jarred out of alignment during shipping. Also,
over a period of time, readjustment will probably become
necessary due to wear.
To avoid unnecessary set-ups and adjustments, a good prac-
tice is to check your setups carefully with a framing square
and make practice cuts in scrap wood before making finish
cuts in good workpieces. Do not start any adjustments until
you have checked with a square and made test cuts to be
sure adjustments are needed.
TO REPLACE THE BLADE
See Figures 47 - 49.

Unplug the saw.
 Lower the saw blade, raise the blade guard, and remove
the throat plate.
 Make sure the bevel locking lever is securely pushed
down. Raise the saw blade to its full height by turning
the height/bevel adjusting handwheel clockwise.
 Using the smaller blade wrench, insert the flat open end
into the flats on the arbor shaft.
 Insert the closed end of the larger blade wrench over
the hex nut. Holding both wrenches firmly, pull the larger
wrench forward to the front of the machine. Make sure
the blade nut is securely tightened. Do not overtighten.
NOTE: Arbor shaft has left hand threads.
Check all clearances for free blade rotation. See
To Set the
Blade at 0˚ and 45˚. In cutting operations, the scale will be
set to the side of the blade where the cut will be measured
and made.
To replace the blade with an accessory blade, follow the
instructions provided with the accessory.
To install a standard blade:

Place the new blade on the arbor shaft (the teeth must point
down toward the front of the saw to work properly).
 Place the blade washer and the blade nut over the blade
arbor. Be sure the dome side of the blade washer faces
out from the blade and that all items are snug against the
arbor housing. Tighten securely.
 Rotate the blade by hand to make sure it turns freely.
 Lower the saw blade and reinstall the throat plate.
NOTE: Securely tighten throat plate screws. Do not allow
the throat plate to bow up above the table surface.
Fig. 48
BLADE
BLADE
NUT
BLADE
WASHER
ARBOR SHAFT
Fig. 49
THROAT
PLATE
BLADE
SCREWS
Fig. 47
LARGE
BLADE WRENCH
SMALL BLADE
WRENCH