Figure - DeWalt DW721KN Original Instructions Manual

E NGLI SH
Blade Guard Assembly (fi g. 43)
The blade guard is a multifunctional assembly which offers the following
safety features:
– Front guard (c) and spring-held rear guard (d) for full blade
protection.
– Dust extraction adapter (a1).
– Adjustable finger guard (a2) for use when cross-cutting.
BEVEL SCALE (FIG. 44)
Check that the bevel scale (u) reads 0˚ when positioned for a vertical
cut.
If required, loosen the screws (uu) and adjust the pointer to 0˚.
MITRE SCALE (FIG. 42)
Check that the mitre scale (yy) reads 0˚ when positioned for a vertical
cut.
Adjust the pointer (xx) to register 0˚ using the screw (zz).
The arm has preset positions at 45˚ left and right and at 0˚.
OPERATION
Instructions for Use
WARNING:
• Always observe the safety instructions and applicable
regulations.
• Ensure the material to be sawn is firmly secured in place.
• Apply only a gentle pressure to the tool and do not exert
side pressure on the saw blade.
• Avoid overloading.
WARNING:
• 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.
• Never run the machine without the guards in place.
• Never lift the machine by the table top.
• Always check that there is a suitable slot in the table top.
• Always refer to figure L to check the fence position and
type.
The attention of UK users is drawn to the "woodworking machines
regulations 1974" and any subsequent amendments.
SWITCHING ON AND OFF (FIG. 1)
The on/off switch of your radial arm saw offers multiple advantages:
– No-volt release function: should the power be shut off for
some reason, the switch has to be deliberately reactivated.
– Motor overload protection device: in case of motor overload,
the power supply to the motor will be cut off. If this happens, let
the motor cool for 10 minutes and then press the reset button.
– Braking system: after switching off, the braking system will
stop the saw blade within 10 seconds.
– The switch has hold-to-run functions only.
To switch the machine on, press the green actuator (a) in the handle (b).
When the actuator is released the machine stops automatically.
MAKING A TRIAL CUT (FIG. 1)
1. With the mitre latch lever (j) engaged, lock the mitre clamp lever (k)
so that the blade is positioned for a straight 0° cross-cut.
2. Lower the arm until the blade almost touches the table top.
3. Place the workpiece against the front of the fence.
4. Switch on and lower the arm to allow the blade to cut a shallow
groove in the table surface.
5. Pull the blade towards you so that it cuts a vertical slot in the
wooden fence and through the workpiece.
6. Return the blade back to rest position and switch off.
34
7. Check that the cut is a true 90° in all planes and adjust if required.
Basic Saw Cuts (fi g. 45–53)
WARNING: The teeth of a new blade are very sharp and
can be dangerous.
CROSS-CUTTING (FIG. 45)
1. Set the radial arm at right angles to the fence.
2. Engage the mitre latch lever (j) in 0° position and tighten the mitre
clamp lever (k).
3. Lower the blade.
4. Adjust the finger guard (a2) so that it just clears the workpiece.
5. If there is no slot in the table top, cut one as described above.
6. Hold the workpiece against the fence, keeping your fingers well
away from the path of the blade.
7. Switch on and slowly pull the blade through the fence and the
workpiece.
8. Return the blade to rest position and switch off.
MITRE CUTS (FIG. 46, 47)
1. Release the mitre latch lever (j) and the mitre clamp lever (k).
2. Swing the arm to the required angle on the mitre scale.
3. For 45° left or right, engage the mitre latch lever (j) and lock with
the mitre clamp lever (k).
4. For intermediate angles, use the mitre clamp lever only.
5. Proceed as for cross-cutting.
BEVEL CUTS (FIG. 45, 48)
1. Set the arm as for a 0° cross-cut.
2. Raise the blade well above the table surface.
3. Release the bevel clamp lever (a3) and pull out the bevel latch (a4).
4. Tilt the motor to the required angle on the bevel scale (u).
5. For 45° right, engage the bevel latch (a4) and lock with the bevel
clamp lever (a3).
6. For intermediate angles, use the bevel clamp lever only.
7. Proceed as for a vertical cross-cut.
COMPOUND MITRE (FIG. 47)
This cut is a combination of a mitre and a bevel cut.
1. Set the required bevel angle.
2. Swing the arm to the required mitre position.
3. Proceed as for mitre cuts.
MAINTENANCE
Your D WALT power tool has been designed to operate over a long
E
period of time with a minimum of maintenance. Continuous satisfactory
operation depends upon proper tool care and regular cleaning.
NOTE: No service is needed on mechanical brake.
IMPORTANT: Replace the fixed table top and fence when worn.
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
switch is in the OFF position. An accidental start-up can
cause injury.
WARNING: if the saw blade is worn replace it with a new
or re-sharpened blade.
Adjusting the Roller Head Bearings Arm Tracks
(fi g. 49–52)
If lateral movement is occurring in the roller head assembly, the bearings
need adjustment.
1. Pull the yoke assembly forward to the end of the arm tracks and
keep in position (fig. 49).