DeWalt DW743N Original Instructions Manual page 38

EN G LI S H
Mounting the Machine to the Workbench (fi g. C2)
With the legs removed, the machine is suitable for placement on a
workbench. To ensure a safe operation, the machine has to be fixed to
the workbench and mounted with bolts 8 mm diameter by 80 mm long.
ASSEMBLY FOR MITRE SAW MODE
Mounting the Under-table Guard (fi g. D)
The under-table guard (50) is fitted to the top of the bench saw table.
• Place the two hooks on the left of the guard into the oblong slots
on the left of the blade slot (52).
• Place the guard flat on the table and press it in the locking
grommet.
• To remove, loosen the grommet with a screwdriver and proceed in
reverse order.
Turning the Sawhead and Table Over
(fi g. A3, E1, E2)
• Withhold the saw table with one hand and push the table release
lever (2) to the left (fig. E1).
• Push the table downwards at the front and swing it over completely
until the motor assembly is uppermost and the indentation engages
in the retaining teeth of the table locking device (20).
• The head assembly is held down by a clamp strap at the front and
a height adjuster (23) at the rear (fig. A3).
• Remove the strap.
• Rotate the wheel (55) counterclockwise whilst holding down the
head until the "U"-shaped bracket (56) can be disengaged from its
seating (fig. E2).
• Swing and push the height adjuster up.
• Holding the head firmly, allow the spring pressure to take the head
upwards into its rest position.
Mounting the Saw Blade (fi g. A2, F1–F3)
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. Be sure
the trigger switch is in the OFF position. An accidental start-
up can cause injury.
WARNING: Be aware the saw blade shall be replaced in
the described way only. Only use saw blades as specified
under Technical Data; Cat.no.: DT4321.
WARNING: The teeth of a new blade are very sharp and
can be dangerous.
WARNING: Always change blades with the machine in
mitre saw mode.
• Ensure riving knife (16) is secured in the upper rest position (fig. A2).
• Insert the hex key (57) through the hole (58) in the belt casing into
the spindle end (fig. F1). Place the blade spanner (59) onto the
blade locking screw (60) (fig. F2).
• The blade locking screw has a left-handed thread, therefore holding
the hex key firmly, turn the spanner clockwise to loosen.
• Depress the head lock up guard release lever (13) to release the
lower guard (12), then raise the lower guard as far as possible.
• Remove the blade locking screw (60) and the outside arbor collar
(61) (fig. F3).
• Make sure the inner flange and both faces of the blade are clean
and free of dust.
• Install the saw blade (62) onto the shoulder (63) provided on the
inside arbor collar (64), making sure that the teeth at the bottom
edge of the blade are pointing toward the back of the saw (away
from the operator).
• Carefully ease the blade into position and release the lower blade
guard.
• Replace the outer arbor collar.
• Tighten the blade locking screw (60) by turning counterclockwise
while holding the hex key steady with your other hand.
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• Place the blade spanner and Hex key in their storage position.
WARNING: After mounting or replacing the blade, always
check that the blade is fully covered by the guard. Make
sure the blade spanner and hex key have been replaced in
their storage position.
Adjustments for Mitre Saw Mode
WARNING: Be aware the saw blade shall be replaced in
the described way only. Only use saw blades as specified
under Technical Data; Cat.no.: DT4321.
Your mitre saw was accurately adjusted at the factory. If readjustment
due to shipping and handling or any other reason is required, follow the
steps below to adjust your saw. Once made, these adjustments should
remain accurate.
Checking and Adjusting the Blade to the Fence
(fi g. D, G1, G2, H)
With the head in the vertical position and the bevel clamp handle (22)
released, slacken the locking screw (65) in the rotating table location
plunger (8) (fig. G1).
• Pull down the head until the blade just enters the saw kerf.
• Place a square (66) against the left side (7) of the fence and blade
(62) (fig. G2). The angle should be 90°.
WARNING: Do not touch the tips of the blade teeth with
the square.
• If adjustment is required, proceed as follows:
• Rotate the eccentric adjustment bush (67) until the face of the saw
blade is flat against the square (fig. G1).
• Tighten the locking screw (65).
• Check that the red marks (68) near the blade slot (52) are in line
with the 0° position (69) on the two scales (fig. H).
• If adjustment is required, loosen the screws (70) and bring the
indicators in line. The 45° position should now also be accurate. If
this is not the case, the blade is not perpendicular to the rotating
table (see below).
Checking and Adjusting the Blade to the Table
(fi g. I1, I2)
• Loosen the bevel clamp knob (22) (fig. I1).
• Press the saw head to the right to ensure it is fully vertical and
tighten the bevel clamp handle.
• Pull down the head until the blade just enters the saw kerf.
• Place a set square (66) on the table and up against the blade (62)
(fig. I2). The angle should be 90°.
WARNING: Do not touch the tips of the blade teeth with
the square.
• If adjustment is required, proceed as follows:
• Loosen the bevel clamp knob (22) (fig. I1) and turn the vertical
position adjustment stop screw (71) in or out until the blade is at
90° to the table as measured with the square (66) (fig. I2).
Checking and Adjusting the Mitre Angle
(fi g. A1, A2, H)
The straight cross-cut and 45° mitre positions are pre-set.
• Pull up the rotating table location plunger (8) and rotate it
counterclockwise a quarter of a turn (fig. A1).
• Loosen the rotating table clamp (3). The handle allows a ratchet-
type action when full rotation of the handle is not possible.
• Grip the control handle (14) (fig. A2), compress the guard release
lever (13) and lower the saw about halfway (fig. A1).
• Turn the sawhead with its rotating table to the required position.
• Tighten the rotating table clamp (3). The rotating table location
plunger (8) will engage automatically (fig. A1).
Using the red marks (68), the mitre saw table (4) can be set to any mitre
angle left or right between 0° and 45° (fig. H).
• Proceed as for pre-set positions. The rotating table location plunger
cannot be used for intermediate angles.