DeWalt DW744 Guide D'utilisation page 13

CAUTION: Certain work piece shapes, such as molding
may not lift the guard properly. Feed the work piece slowly
to start the cut. If the guard contacts the blade, place the
work piece under the guard, not touching the blade, before
starting the motor.
This operation is the same as crosscutting except the miter
gauge is locked at an angle other than 0°. Hold the work
piece FIRMLY against the miter gauge and feed the work
piece slowly into the blade (to prevent the work piece from
moving). See Figure 26.
Miter Gauge Operation
To set your miter gauge, loosen the lock handle and move
the miter gauge to the desired angle.
Compound Mitering
This is a combination of bevel crosscutting and mitering.Follow
the instructions for both bevel crosscutting and mitering.
Dado Cutting
CAUTION: Do not attempt to stack dado blades thicker
than 13/16" (20mm). Do not use dado blades larger than 8"
(200mm) diameter. When installing the dado stack, do not
include the inner clamp washer. Replace it with the outer
clamp washer, then install the blade stack, arbor nut, and
tighten with the wrench supplied.
Since dado cuts are not through cuts, the cuts must be per-
formed with the blade guard removed. To remove the blade
guard, loosen the two bolts shown in Figure 10 and remove
the guard assembly.
When using the dado, the special dado insert (also sold as
an accessory) must be used.
Anytime a cut is required that is considerably wider than the
saw kerf, a dado is used. A dado cut is commonly used to
add support and line up a shelf for a cabinet, bookcase or
some such project. When using the dado, the guard must be
removed. Use EXTREME care when using the dado without
the guard. If a deep cut is required. Use several successive
passes rather than attempting to make it with one pass.
Maximum dado width on this saw is 13/16" (20mm). DO
NOT USE WIDER COMBINATIONS.
CAUTION: Always check dado blade clearance before
plugging in the saw.
Be sure to place the guard and standard throat plate back
in position and check adjustments when the dado cuts are
complete.
Dust Collection
Your table saw is equipped with a dust shroud and dust col-
lection port. For best results, connect a vacuum to the port
at the rear of the saw.
After extended use, the saw's dust collection system may
become clogged. To clear the dust collection system:
1. Unplug the saw.
FIG. 25
FIG. 26
FIG. 27
DUST ACCESS
DOOR
HAIR PIN COTTERS
11
2. Turn the saw on its side, so the bottom, open part of the
unit is accessible.
3. Open the dust access door shown in Figure 27 by
removing the hair pin cotters. Clean out the excess dust,
and re-secure the access door with the cotters.
Motor Overload
WARNING: If power is interrupted by a circuit breaker trip,
make sure the switch is in the OFF position before restoring
power to prevent the saw from starting unexpectedly.
Circuit breaker overload is often the result of a dull blade.
Change your blade on a regular basis to avoid tripping
your breaker. Check your blade before re-setting the circuit
breaker and continuing to saw.
Circuit Breaker Reset Button
FIG. 28
(DW744X)
RESET BUTTON
The DW744X is equipped with a
25 amp circuit breaker. If this saw
becomes overloaded and stops
operating, turn off the saw, let the
unit sit for two minutes and press
the reset button before you resume
working (Fig. 28).
MAINTENANCE
WARNING: To reduce the risk of
injury, turn unit off and disconnect
machine from power source before
installing and removing accessories,
before adjusting or changing set-
ups or when making repairs. An
accidental start-up can cause injury.
Cleaning
WARNING: Blowing dust and chips out of the motor
housing using clean, dry compressed air is a necessary
regular maintenance procedure. Dust and chips containing
metal particles often accumulate on interior surfaces and
could create an electrical shock or electrocution if not fre-
quently cleaned out. ALWAYS WEAR SAFETY GLASSES.
CAUTION: When cleaning, use only a damp cloth on
plastic parts. Many household cleaners contain chemicals
which could seriously damage plastic. Also, do not use
gasoline, turpentine, lacquer or paint thinner, dry clean-
ing fluids or similar products which may seriously damage
plastic parts. Never let any liquid get inside the tool; never
immerse any part of the tool into a liquid.
Lubrication
1. All motor bearings are permanently lubricated at the
factory and no additional lubrication is needed.
2. The height adjustment screw may require periodic
cleaning and lubrication. If you have difficulty raising or
lowering the blade: