Ryobi CSB142LZ - Manual (Page 12)

12 - English
OPERATION
SAW BLADES
The best of saw blades will not cut efficiently if they are not
kept clean, sharp, and properly set. Using a dull blade will
place a heavy load on the saw and increase the danger of
kickback. Keep extra blades on hand, so that sharp blades
are always available.
Gum and wood pitch hardened on blades will slow the saw
down. Remove saw blade from the saw and use gum and
pitch remover, hot water, or kerosene to remove these ac-
cumulations.
DO NOT USE GASOLINE.
BLADE GUARD SYSTEM
See Figure 11, page 18.
The lower blade guard attached to the circular saw is there
for your protection and safety. Do not alter it for any reason.
If it becomes damaged, do not operate the saw until you
have the guard repaired or replaced. Always leave guard in
operating position when using the saw.
DANGER:
When sawing through work, lower blade guard does not
cover blade on the underside of work. Since blade is
exposed on underside of work, keep hands and fingers
away from cutting area. Any part of your body coming
in contact with moving blade will result in serious injury.
WARNING:
Never tie the lower blade guard in a raised position.
Leaving the blade exposed could lead to serious injury.
CAUTION:
Never use saw when guard is not operating correctly.
Check the guard for correct operation before each use.
The guard is operating correctly when it moves freely and
readily returns to the closed position. If you drop the saw,
check the lower blade guard and bumper for damage at
all depth settings before reuse.
If at any time the lower blade guard does not snap closed,
unplug the saw from the power supply. Exercise the lower
guard by moving it rapidly back and forth from the full open
position to the closed position several times. Normally this
will restore the guard to its normal operating condition. If
it does not correct a slow or sluggish closing lower guard,
do not use the saw. Take it to an authorized factory service
center for repair.
STARTING/STOPPING THE SAW
See Figure 12, page 19.
To start the saw: Depress the switch trigger.
Always let the blade reach full speed, then guide the saw
into the workpiece.
WARNING:
The blade coming in contact with the workpiece before
it reaches full speed could cause the saw to “kickback”
towards you resulting in serious injury.
To stop the saw: Release the switch trigger.
After you release the switch trigger, allow the blade to come
to a complete stop.
Do not remove the saw from the
workpiece while the blade is moving.
ADJUSTING BLADE DEPTH
See Figure 13, page 19.
Always keep correct blade depth setting. Less than a full tooth
of the blade teeth should be visible below the workpiece.
More blade depth will increase the chance of kickback and
cause the cut to be rough. For more depth of cut accuracy,
a scale is located on the upper blade guard.
To adjust the blade depth:

Unplug the saw.
 Loosen depth adjustment knob on back of saw.

Determine the desired depth of cut.
 Locate depth of cut scale on back of upper blade guard.
 Hold base flat against the workpiece and raise or lower
saw until the index point (or reference mark) on bracket
aligns with notch on blade guard.
 Tighten depth adjustment knob securely.
USING THE LASER GUIDE
See Figure 14, page 19.
WARNING:
Do not stare into the laser beam or turn the laser on when
the tool is not in use. Failure to heed this warning could
result in possible serious personal injury.
The laser guide will generate a red laser beam on the work
surface in front of the saw when turned on. The laser aids in
following the line of cut when cutting the workpiece.
NOTE: The laser unit comes from the factory already installed
and aligned. If the laser becomes misaligned after time, refer
to the Adjustments section later in this manual.

Unplug the saw.
 Mark the line to be cut on the workpiece.
 Adjust the depth and angle of the cut as needed.