DeWalt DCS573 Guide D'utilisation page 14

English
7-1/4" (184 mm) Diameter
Application
Rip
General Purpose
Finish
If you need assistance regarding blades, please contact your
local D WALT dealer.
e
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.
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. N).
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.
d. Cutting off long narrow strips (as in ripping) can cause
kickback. The cut off strip can sag or twist closing the
kerf and pinching the blade.
e. Snagging the lower guard on a surface below the
material being cut momentarily reduces operator
control. The saw can lift partially out of the cut
increasing the chance of blade twist.
2. iMPROPER DEPTh OF CUT sETTing On sAW
a. To make the most efficient cut, the blade should
protrude only far enough to expose one-half of a
tooth as shown in Figure H. This allows the shoe
to support the blade and minimizes twisting and
pinching in the material. See the section titled Depth
of Cut Adjustment.
3. BlADE TWisTing (MisAlignMEnT in CUT)
a. Pushing harder to cut through a knot, a nail or a hard
grain 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. Overreaching or operating the 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.
12
4. MATERiAls ThAT REQUiRE EXTRA ATTEnTiOn
Teeth
24
36
60
5. UsE OF DUll OR DiRTY BlADEs
6. liFTing ThE sAW WhEn MAKing A BEVEl CUT
7. REsTARTing A CUT WiTh ThE BlADE TEETh
Any other conditions which could result in pinching,
binding, twisting, or misalignment of the blade could cause
kickback. Refer to the sections Further Safety Instructions
for All Saws and Blades for procedures and techniques that
will minimize the occurrence of kickback.
Depth of Cut Adjustment (Fig. G, H)
Maximum depth of cut is 2.5" (64 mm)
1. Raise the depth adjustment lever
2. To obtain the correct depth of cut, align the appropriate
3. Tighten the depth adjustment lever.
4. For the most efficient cutting action using a carbide
5. A method of checking for the correct cutting depth
Adjusting Depth Adjustment
Lever (Fig. G)
It may be desirable to adjust the depth adjustment lever
may loosen in time and hit the shoe before tighten ing.
To Tighten the lever:
1. Hold depth adjustment lever
e. Backing up the saw to clear blade can lead to twist.
a. Wet timber
b. Green timber (material freshly cut or not kiln dried)
c. Pressure treated timber (material treated with
preservatives or anti-rot chemicals)
a. 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.
a. 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.
JAMMED AgAinsT ThE MATERiAl
a. 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.
mark on the depth adjustment strap
on the upper blade guard.
tipped saw blade, set the depth adjustment so that
about one half of a tooth projects below the surface of
the wood to be cut.
is shown in Figure H. Lay a piece of the material you
plan to cut along the side of the blade, as shown in the
figure, and observe how much tooth projects beyond
the material.
locknut 18 .
4 to loosen.
20 with notch 19
4
4 and loosen the
. It