Use Of Dull Or Dirty Blades - Black and Decker Quantum Pro QP350 Manual De Instrucciones

617931-00QP350 Circular Saw NEW
area can cause the blade to twist.
B. Trying to turn the saw in the cut (trying to get back on the
marked line) can cause blade twist.
C. Extended reach or operating saw with poor body control
(out of balance), can result in twisting the blade.
D. Changing hand grip or body position while cutting can result
in blade twist.
E. Backing unit up to clear blade can lead to twist if not done
carefully.
4. MATERIALS THAT REQUIRE EXTRA ATTENTION
A. Wet lumber
B. Green lumber (material freshly cut or not kiln dried)
C. Pressure treated lumber (material treated with
preservatives or anti-rot chemicals)

5. USE OF DULL OR DIRTY BLADES

Dull blades cause increased loading of the saw. To
compensate, an operator will usually push harder which
further loads the unit and promotes twisting of the blade in the
kerf. Worn blades may also have insufficient body clearance
which increases the chance of binding and increased loading.
6. LIFTING THE SAW WHEN MAKING BEVEL CUTS
Bevel cuts require special operator attention to proper cutting
techniques – especially guidance of the saw. Both blade angle
to the shoe and greater blade surface in the material increase
the chance for binding and misalignment (twist) to occur.
7.RESTARTING A CUT WITH THE BLADE TEETH JAMMED
AGAINST THE MATERIAL
The saw should be brought up to full operating speed before
starting a cut or restarting a cut after the unit has been
stopped with the blade in the kerf. Failure to do so can cause
stalling and kickback.
Any other conditions which could result in pinching, binding,
twisting, or misalignment of the blade could cause kickback. Refer
to the sections on "Adjustments And Set-Up" and "Operation" for
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procedures and techniques that will minimize the occurrence of
kickback.
Blades
A dull blade will cause slow, inefficient cutting, overload on the saw
motor, excessive splintering and increase the possibility of
kickback. It is a good practice to keep extra blades on hand so that
sharp blades are available while the dull ones are being sharpened
(See "SAWS-SHARPENING" in the Yellow Pages). In fact, many
lower priced blades can be replaced with new ones at very little
cost over the sharpening price.
Hardened gum on the blade will slow down the cutting. This gum
can best be removed with trichlorethylene, kerosene, turpentine or
oven cleaner.
Black & Decker manufactures a complete line of 7-1/4" (180mm)
diameter saw blades and they are available from your authorized
service center.
VISUALLY EXAMINE CARBIDE BLADES BEFORE USE.
REPLACE IF DAMAGED.
Cleaning and Lubrication
Use only mild soap and a damp cloth to clean the tool. Never let any
liquid get inside the tool; never immerse any part of the tool into a
liquid.
Accesories
Recommended accessories for use with your tool are available at
extra cost from your distributor or authorized service center.
CAUTION: use of any non-recommended accessory may be
hazardousl.