Lower Blade Guard - DeWalt DCS391 Manual De Instrucciones

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3. Clean any sawdust that may have accumulated in the guard or
clamp washer area and check the condition and operation of the
lower blade guard as previously outlined. Do not lubricate this
area.
4. Select the proper blade for the application (see Blades). Always
use blades that are the correct size (diameter) with the proper size
and shape center hole for mounting on the saw spindle. Always
assure that the maximum recommended speed (rpm) on the saw
blade meets or exceeds the speed (rpm) of the saw.
5. Follow steps 2 through 6 under To Install the Blade, making
sure that the blade will rotate in the proper direction.

LOWER BLADE GUARD

WARNING: The lower blade guard is a safety feature which
reduces the risk of serious personal injury. Never use the saw
if the lower blade guard is missing, damaged, misassembled
or not working properly. Do not rely on the lower blade
guard to protect you under all circumstances. Your safety
depends on following all warnings and precautions as well
as proper operation of the saw. Check lower blade guard for
proper closing before each use as outlined in Further Safety
Instructions for All Saws. If the lower blade guard is missing
or not working properly, have the saw serviced before using.
To assure product safety and reliability, repair, maintenance
and adjustment should be performed by an authorized service
center or other qualified service organization, always using
identical replacement parts.
Blades
WARNING: To minimize the risk of eye injury, always use eye
protection. Carbide is a hard but brittle material. Foreign objects in
the workpiece such as wire or nails can cause tips to crack or break.
Only operate saw when proper saw blade guard is in place. Mount
blade securely in proper rotation before using, and always use a
clean, sharp blade.
WARNING: Do not cut ferrous metals (steel), masonry, glass,
masonry-type planking, cement board or tile with this saw.
Do not use abrasive wheels or blades. A dull blade will cause slow
inefficient cutting, overload on the saw motor, excessive splintering,
and could increase the possibility of kickback. Please refer to the
table below to determine the correct size replacement blade for your
model saw.
Blade Diameter Teeth
DW9155 6-1/2" 18
(165 mm)
DW9154 6-1/2" 24
(165 mm)
DW9153 6-1/2" 90
(165 mm)
KICKBACK
Kickback is a sudden reaction to a pinched, bound or misaligned saw
blade, causing an uncontrolled saw to lift up and out of the workpiece
toward the operator. When the blade is pinched or bound tightly by
the kerf closing down, the blade stalls and the motor reaction drives
the unit rapidly back toward the operator. If the blade becomes
twisted or misaligned in the cut, the teeth at the back edge of the
blade can dig into the top surface of the wood causing the blade to
climb out of the kerf and jump back toward the operator.
Kickback is more likely to occur when any of the following conditions
exists.
1. IMPROPER WORKPIECE SUPPORT
A. Sagging or improper lifting of the cut off piece can cause
pinching of the blade and lead to kickback (Fig. 12).
B. Cutting through material supported at the outer ends only can
cause kickback. As the material weakens it sags, closing down
the kerf and pinching the blade (Fig. 12).
C. Cutting off a cantilevered or overhanging piece of material from
the bottom up in a vertical direction can cause kickback. The
falling cut off piece can pinch the blade.
56
Application
General Purpose Cutting
Smooth Wood Cutting
Non-carbide, Plywood/
Vinyl Siding Cutting