DeWalt DW718, Original Instructions Manual

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32
Rail guide adjustment (fi g. K)
• Regularly check the rails for clearance.
• To reduce clearance, gradually rotate the set screw (57) clockwise
while sliding the saw head back and forth.
OPERATION
Instructions for Use
WARNING: Always observe the safety instructions and
applicable regulations.
WARNING: To reduce the risk of serious personal injury,
turn tool off and disconnect tool from power source
before making any adjustments or removing/installing
attachments or accessories.
Ensure the machine is placed to satisfy your ergonomic conditions in terms
of table height and stability. The machine site shall be chosen so that the
operator has a good overview and enough free surrounding space around
the machine that allows handling of the workpiece without any restrictions.
To reduce effects of vibration make sure the environment temperature is not
too cold, machine and accessory is well maintained and the workpiece size
is suitable for this machine.
The attention of UK users is drawn to the “woodworking machines
regulations 1974” and any subsequent amendments.
Prior to operation:
• Install the appropriate saw blade. Do not use excessively worn blades.
The maximum rotation speed of the tool must not exceed that of the
saw blade.
• Do not attempt to cut excessively small pieces.
• Allow the blade to cut freely. Do not force.
• Allow the motor to reach full speed before cutting.
• Make sure all locking knobs and clamp handles are tight.
• Secure the workpiece.
• Although this saw will cut wood and many nonferrous materials,
these operating instructions refer to the cutting of wood only.
The same guide-lines apply to the other materials.
Do not cut ferrous (iron and steel) materials, fi bre cement or masonry
with this saw!
• Make sure to use the kerf plate. Do not operate the machine if the kerf
slot is wider than 10 mm.
Switching on and off (fi g. L)
A hole (58) is provided in the on/off switch (1) for insertion of a padlock to
lock the tool.
• To run the tool, press the on/off switch (1).
• To stop the tool, release the switch.
Setting the variable speed (fi g. L)
The speed control dial (13) can be used for advance setting of the required
range of speed.
• Turn the speed control dial (13) to the desired range, which is indicated
by a number.
• Use high speeds for sawing soft materials such as wood.
Use low speeds for sawing metal.
Basic Saw Cuts
Vertical straight cross cut (fi g. A1, A2 & M)
• Release the mitre lever (4) and depress the mitre latch (5) to release the
mitre arm.
• Engage the mitre latch at the 0° position and tighten the mitre lever.
• Place the wood to be cut against the fence (3 & 8).
• Take hold of the operating handle (11) and depress the head lock up
release lever (12) to release the head.
• Press the trigger switch (1) to start the motor.
• Depress the head to allow the blade to cut through the timber and
enter the plastic kerf plate (9).
• After completing the cut, release the switch and wait for the saw blade
to come to a complete standstill before returning the head to its upper
rest position.
Performing a sliding cut (fi g. A1, N)
The guide rail allows cutting larger workpieces from 50 x 100 mm up to
74 x 345 mm using an out-down-back sliding motion.
• Release the rail lock knob (16).
• Pull the saw head towards you and switch the tool on.
• Lower the saw blade into the workpiece and push the head back to
complete the cut.
• Proceed as described above.
WARNING:
• Do not perform sliding cuts on workpieces smaller than 50 x
100 mm.
• Remember to lock the saw head in the rear position when the
sliding cuts are finished.
Mitre cross-cut (fi g. A1, A2 & O)
• Release the mitre lever (4) and depress the mitre latch (5).
• Move the arm left or right to the required angle. The mitre latch will
automatically locate at 10°, 15°, 22.5°, 31.62° and 45° both left and
right, and at 60° left and 50° right. If any intermediate angle is required
hold the head fi rmly and lock by tightening the mitre lever.
• Always ensure that the mitre lever is locked tightly before cutting.
• Proceed as for a vertical straight cross-cut.
WARNING: When mitring the end of a piece of wood with a
small off-cut, position the wood to ensure that the off-cut is to
the side of the blade with the greater angle to the fence; i.e. left
mitre, off-cut to the right - right mitre, off-cut to the left.
Bevel cuts (fi g. A1, A2 & P)
Bevel angles can be set from 48° left to 48° right and can be cut with the
mitre arm set between zero and a maximum of 45° mitre position right or left.
Left bevel
• Slide the upper part of the left side fence (3) to the left as far as it will go.
• Loosen the bevel clamp handle (21), lift the bevel latch (20) and set the
bevel as desired.
• The bevel latch automatically locates at 22.5°, 33.85° and 45°. If
any intermediate angle is required, hold the head fi rmly and lock by
tightening the bevel clamp handle (21).
• Proceed as for a vertical straight cross-cut.
Right bevel
• Slide the upper part of the right side fence (8) to the right as far as it will
go.
• Proceed as for a left bevel cut.
Quality of cut
The smoothness of any cut depends on a number of variables, e.g. the
material being cut. When smoothest cuts are desired for moulding and
other precision work, a sharp (60 tooth carbide) blade and a slower,
even cutting rate will produce the desired results.
WARNING: Ensure that the material does not creep while
cutting; clamp it securely in place. Always let the blade come to
a full stop before raising the arm. If small fibres of wood still split
out at the rear of the workpiece, stick a piece of masking tape
on the wood where the cut will be made. Saw through the tape
and carefully remove tape when finished.
Body and hand position
Proper positioning of your body and hands when operating the mitre saw
will make cutting easier, more accurate and safer.
• Never place your hands near the cutting area.
E N G L I S H