DeWalt DW743N - Page 31

29
ENGLISH
Switching On and Off (Fig. A1–A2, P)
This machine has two independent switching systems. In bench saw mode, the on/off
switch
1
(Fig. A1) is used. In mitre saw mode, the trigger switch
15
(Fig.A2) isused.
Bench Saw Mode (Fig. P)
The on/off switch used in bench saw mode offers multiple advantages:
- no-volt release function: should the power be shut off for some reason, the switch has
to be deliberatelyreactivated.
- extra safety: the hinged safety enclosure plate can be locked by passing a padlock
through the centre hasp. The plate also serves as an easy-to-locate stop button as
pressure on the front of the plate will depress the stopbutton.
To switch the machine on, press the green start button
80
.
To switch the machine off, press the red stop button
81
.
Mitre saw mode (Fig. A2)
To switch the machine on, press the trigger switch
15
.
To switch the machine off, release the triggerswitch.
Basic saw cuts
Sawing in Mitre Saw Mode
It is dangerous to operate without guarding. Guards must be in position whensawing.
• Make sure that the under-table guard does not become clogged withsawdust.
Clamping the Workpiece (Fig. Q, R, S, X)

WARNING: A workpiece that is clamped, balanced and secure before a cut may become
unbalanced after a cut is completed. An unbalanced load may tip the saw or anything the
saw is attached to, such as a table or workbench. When making a cut that may become
unbalanced, properly support the workpiece and ensure the saw is firmly bolted to a
stable surface. Personal injury mayoccur.

WARNING: The clamp foot must remain clamped above the base of the saw whenever
the clamp is used. Always clamp the workpiece to the base of the saw – not to any other
part of the work area. Ensure the clamp foot is not clamped on the edge of the base of
thesaw.

CAUTION: Always use a workpiece clamp to maintain control and reduce the risk of
personal injury and workpiecedamage.
Use the workpiece clamp
34
provided with your saw. Other aids such as spring clamps, bar
clamps or C-clamps may be appropriate for certain sizes and shapes of material. The left side
fence will slide from side to side to aid insecuring.
To Install Clamp
1. Insert the workpiece clamp into the hole lateral to the mitrefence.
2. Rotate the clamp arm toward to the front of the mitresaw.
3. Loosen the knob to adjust the clamp up and down and secure it in the choosenheight.
4. Use the fine adjust knob to firmly clamp theworkpiece.
NOTE: Place the clamp on the right side of the base when beveling. ALWAYS MAKE DRY RUNS
(UNPOWERED) BEFORE FINISH CUTS TO CHECK THE PATH OF THE BLADE. ENSURE THE CLAMP
DOES NOT INTERFERE WITH THE ACTION OF THE SAW ORGUARDS.
General Handling
• In the mitre saw mode, the sawhead is automatically locked in the upper "park"position.
• Squeezing the guard release lever will unlock the sawhead. Moving the sawhead down
retracts the moveable lowerguard.
• Never seek to prevent the lower guard returning to its park position when the cut
iscompleted.
• The minimum length of offcut material is 10mm.
• When cutting UPVC sections, a supporting piece made out of timber with a
complementary profile should be placed beneath the material being cut to provide the
correct level ofsupport.
Vertical Straight Cross Cut (Fig. Q)
1. Set the rotating table to 0° and make sure that the locating plunger isengaged.
2. Tighten the rotating table clampingknob.
3. Place the wood to be cut against the fence. Take hold of the control handle and press in
the guard retractionlever.
4. Switch the machineon.
5. Allow the blade to cut freely. Do notforce.
6. 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.
7. Release the guard retractionlever.

WARNING: Do not allow the sawhead to jump back unaided to preventdamage.
Mitre Cuts (Fig. R)
1. Set the required mitreangle.
2. Ensure that the rotating table clamp is tightlysecured.
3. Proceed as for a vertical straight cross-cut.
4. Prevent the blade cutting the table if the angle is not 45°.

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: left mitre, off-cut to the right mitre, off-cut to theleft.
Bevel Cuts (Fig. A2, S)
1. Release the bevel clamp handle
22
and tilt the head to the anglerequired.
2. Tighten the bevel clamphandle.
3. Proceed as for a vertical straight cross-cut.
Compound Mitre
This cut is a combination of a mitre and a bevel cut. The limitations are 35° mitre/30° bevel. Do
not exceed theselimits.
Set the bevel angle and subsequently set the mitreangle.
Sawing in the Bench Mode
• Always use the rivingknife.
• Always ensure that the riving knife and blade guard are correctlyaligned.
• Always ensure that the mitre saw is set and locked in 0°mitre.

WARNING: DO NOT cut any type of metalmaterial.
Ripping (Fig. A2, T)
1. Set the bevel angle to 0°.
2. Adjust the saw blade height. The correct blade position is to have the tips of three teeth
above the top surface of thewood.
3. Set the parallel fence to the requireddistance.
4. Hold the workpiece flat on the table and against the fence. Keep the workpiece approx.
25mm away from the sawblade.
5. Keep both hands away from the path of the sawblade.
6. Switch the machine on and allow the saw blade to reach fullspeed.
7. Slowly feed the workpiece underneath the upper blade guard, keeping it firmly pressed
against the fence. Allow the teeth to cut, and do not force the workpiece through the saw
blade. The saw blade speed should be keptconstant.
8. Remember to use the push stick
17
when close to theblade.
9. After completing the cut, switch the machine off, allow the saw blade to stop and remove
theworkpiece.

WARNING: Never push or hold the free or cut-off side of theworkpiece.

WARNING: Always use a push stick when ripping smallworkpieces.
Bevel Cuts (Fig. U)
1. Release the bevel clamp handle and set the blade to the requiredangle.
2. In order to prevent material jamming between the blade and the fence, position the fence
to the left of theblade.
3. Proceed as for verticalripping.
Mitre Cuts (Fig. V1–V3)
1. To adjust the mitre fence, loosen the stop screw locknut
86
and screw the stop
82
in or
out until the mitre pointer reads 0° (Fig. V1).
2. Set the blade height andangle.
3. Insert the slide bar
83
of the mitre fence into the groove
84
provided in the left-hand
side of the table (Fig. V2).
4. Loosen the mitre locking knob
85
and rotate the fence to set the scale to the required
angle (Fig. V3).
5. Tighten the mitre locking knob
85
.
6. Place the workpiece against the flat surface of the mitre fence. Switch on and, holding the
workpiece firmly, slide the fence along the groove to take the workpiece into the blade.
When the cut is completed, switch offimmediately.
Fence Positions, Bench Saw Mode (Fig. W)
• For ripping thin materials, use the 11 mm profile of the dual height parallel fence and
position the fence opposite the front edge of the rivingknife.
• For ripping thicker materials, use the 62 mm profile of the dual height parallelfence.
• For cross-cutting narrow and short workpieces (Fig. W):
- Adjust the parallel fence with the low profile facing the blade and install the rear of the
fence in line with the leading edge of theblade.
- Set the workpiece against the mitre fence (at 0° or 90°) and push the mitre fence to
make thecut.
- To prevent small offcut pieces fouling against the blade, prepare a tapered length of
timber and clamp it on the rear edge of the worktable close enough to the right-hand
side of the blade so that successive offcuts feed automatically to theright.
• For ripping narrow (< 120 mm) and long workpieces:
- Place the fence in rearmost position to maintain accuracy during longcuts.
- Push the workpiece with both hands (one on each side of the blade).
- Use a push stick when close to theblade.
- Support long workpieces at the outfeedside.
• For ripping wider (> 120 mm) workpieces:
- Adjust the fence forward as in figure W if the material being cut tends to jam between
the blade or the riving knife and thefence.