DeWalt DW720 Manual page 36

E N G L I S H
• Adjust the blade guard as described above and turn the dust extraction
adaptor (55) away from your face (fig. F2). Remember that ripping
requires the use of the riving knife (58) and the anti-kickback fingers (56)
(fig. G2).
• Slowly feed the workpiece into the blade, keeping it firmly pressed onto
the table and against the fence. Allow the teeth to cut and do not force
the workpiece through the blade. The blade speed should be kept
constant.
Always use a push stick.
Bevel ripping
• Set the machine in the bevel crosscut position.
• Rotate the yoke into rip position.
• Position the yoke for the correct ripping width.
• Angle the anti-kickback fingers so that they will be flat on the
workpiece and lower the riving knife.
• Proceed as for ripping.
Compound mitre (fig. K4)
This cut is a combination of a mitre and a bevel cut.
• Set the required bevel angle.
• Swing the arm to the required mitre position.
• Proceed as for mitre cuts.
Always switch OFF the tool when work is finished and before unplugging.
Coving/hollowing
Your radial arm saw can be used for a wide variety of advanced
applications, such as coving/hollowing.
• Tilt the blade to the required angle, rotate the yoke beneath the arm
and position the blade above the workpiece where required.
Remove the workpiece and lower the blade to make a shallow cut.
Lower the anti-kickback fingers as for bevel ripping. Keeping the
workpiece against the fence, proceed as for ripping.
Make shallow cuts only!
Dust extraction (fig. F2)
The machine is provided with a dust extraction adaptor (55).
• Whenever possible, connect a dust extraction device designed in
accordance with the relevant regulations regarding dust emission.
• When cross-cutting, position a dust collection chute (option) behind the
line of cut.
Optional Accessories
Prior to assembling any accessories always unplug the machine.
Shaping/moulding head
The shaping/moulding head is used to provide your work with a
professional finish.
Mounting the shaping/moulding head (fig. L1 - L3)
• Remove the blade guard assembly and the blade.
• Fit the cutters (84) to the shaping/moulding head (85) making sure that
they are installed in the same way (fig. L1).
• Mount the special spacer (86) supplied with the shaping head onto the
arbor.
• Put the shaping head onto the arbor as shown and lock it with the
clamping nut (87) using the box spanner (88) available as an option.
en - 7
• Tilt the motor until the shaping head is in horizontal position.
• Mount the shaping head guard (89) (fig. L2) as shown and adjust it to
the required depth of cut (fig. L3).
Shaping/moulding
• Place the shaping/moulding head over the fence. The protruding
section corresponds to the cut that will be made.
Certain applications may require to divide the fence into two sections and
to place the shaping/moulding head between them. In that case, the fence
must be replaced when the saw is used for ordinary applications again.
Always use a push stick.
• Feed the material firmly and evenly along the fence from the right.
Rebating
• Use straight-edged cutters.
• Proceed as for shaping/moulding.
• For bevelled rebate cutting, tilt the motor to the required angle.
For wider rebates, use the dado head together with the guard
of the shaping/moulding head.
Refer to the instructions pertaining to the use of the dado head.
The Dado head (fig. F1, M1 & M2)
There are two types of dado heads available. Figure M1 shows the
standard quality dado head and figure M2 shows the long life premium
quality model.
Sharp edges.
Mounting the dado head
• Remove the blade guard assembly and the blade.
• Mount the spacer (90) onto the arbor with the narrower side towards
the motor.
• Mount the cutter blades (91) with the required number of intermediate
blades (92) between them together with a combination of shims (93) to
achieve the required width of cut.
• Secure the dado head using the standard arbor nut (39) (fig. E1).
• Remove the riving knife and its support bracket from the blade guard
assembly and mount the guard.
• Lower the dado head into position for the depth of cut required.
Using the dado head
- In crosscut or mitre position
• Adjust the anti-kickback fingers up and out of the way.
• Adjust the finger guard correctly.
- In ripping position
• Adjust the anti-kickback fingers correctly.
Disc sanding and drum sanding (fig. M2, N1 & N2)
Two sanding attachments are available for cuts requiring sanding at any
angle. Both can be used as follows:
- moving the workpiece along the stationary accessory
- moving the accessory along the clamped workpiece
• Remove the blade guard assembly and the blade.
• Return the outer flange (42) (fig. N1).
• Mount the disc sander (94) or the sanding drum (95) (fig. N2) directly
onto the arbor.
28