Guard Function; Riving Knife Function; Additional Safety Instructions For Saws - DeWalt DWS520 Manual De Instrucciones

g) Use extra caution when making a "Plunge Cut" into
existing walls or other blind areas. The protruding blade
may cut objects that can cause kickback.

Guard Function

a) Check guard for proper closing before each use. Do
not operate the saw if guard does not move freely and
enclose the blade instantly. Never clamp or tie the guard
with the blade exposed. If saw is accidentally dropped, guard
may be bent. Check to make sure that guard moves freely and
does not touch the blade or any other part, in all angles and
depths of cut.
b) Check the operation of the guard return spring. If the
guard and the spring are not operating properly, they
must be serviced before use. Guard may operate sluggishly
due to damaged parts, gummy deposits, or a build-up of debris.
c) Assure that the base plate of the saw will not shift while
performing the "plunge cut" when the blade bevel setting
is not at 90°. Blade shifting sideways will cause binding and
likely kick back.
d) Always observe that the guard is covering the blade
before placing saw down on bench or fl oor. An unprotected,
coasting blade will cause the saw to walk backwards, cutting
whatever is in its path. Be aware of the time it takes for the blade
to stop after switch is released.
Additional Safety Instructions for All
Saws with Riving Knife

RIVING KNIFE FUNCTION

a) Use the appropriate saw blade for the riving knife. For the
riving knife to function, the body of the blade must be thinner
than the riving knife and the cutting width of the blade must be
wider than the thickness of the riving knife.
b) Adjust the riving knife as described in this instruction
manual. Incorrect spacing, positioning and alignment can
make the riving knife ineffective in preventing kickback.
c) Always use the riving knife except when plunge cutting.
Riving knife must be replaced after plunge cutting. Riving knife
causes interference during plunge cutting and can create
kickback. Model DWS520 does not require removal of the riving
knife because the riving knife retracts during a plunge cut.
d) For the riving knife to work, it must be engaged in the
workpiece. The riving knife is ineffective in preventing kickback
during short cuts.
e) Do not operate the saw if riving knife is bent. Even a light
interference can slow the closing rate of a guard.

Additional Safety Instructions for Saws

• Wear ear protectors. Exposure to noise can cause hearing loss.
• Wear a dust mask. Exposure to dust particles can cause
breathing diffi culty and possible injury.
• Use only recommended blades. The saw is designed for use
with 6-1/2" (165 mm) diameter blades that have a 0.79" (20 mm)
diameter bore. Blades must be rated for 6000 RPM operation (or
higher).
• Never use abrasive cut-off wheels.
• Keep your body positioned to either side of the blade, but
not in line with the saw blade. kickback could cause the saw to
jump backwards (see Causes and Operator Prevention of Kickback
and kickback).
WARNING: Blades coast after turn off. Serious personal injury may
result.
• Avoid cutting nails. Inspect for and remove all nails from
lumber before cutting.
WARNING: Cutting plastics, sap coated wood, and other materials
may cause melted material to accumulate on the blade tips and the
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