DeWalt DW743N Series - Intended Use; Mitre Saw Mode; Bench Saw Mode; ASSEMBLY AND ADJUSTMENTS

12
ENGLISH
13
Guard release lever
14
Operating handle
15
Hand indentations
16
Date code
17
Trigger switch (mitre saw mode)
18
Riving knife
19
Push stick storage
20
Leg
21
Foot
22
Table locking device
23
Saw table retention bracket
24
Bevel clamp knob
Intended Use
Your
DeWALT
flip-over saw has been designed to operate as a mitre saw or saw bench to
perform the four main sawing operations of ripping, cross-cutting, bevelling and mitring
easily, accurately andsafely.
This unit is designed for use with a nominal blade diameter 250 mm carbide tip blade for
professional cutting wood, wood products andplastics.
Mitre Saw Mode
In mitre saw mode, the sawing machine is used in vertical, mitre or bevelposition.
Bench Saw Mode
Turned over on its central axis, the sawing machine is used to perform the standard ripping
operation and for sawing wide pieces by manually feeding the workpiece into theblade.

WARNING: Do not use the machine for other purposes asdescribed.
DO NOT use under wet conditions or in the presence of flammable liquids orgases.
DO NOT let children come into contact with the tool. Supervision is required when
inexperienced operators use thistool.
• Young children and the infirm. This appliance is not intended for use by young children
or infirm persons without supervision.
• This product is not intended for use by persons (including children) suffering from
diminished physical, sensory or mental abilities; lack of experience, knowledge or skills
unless they are supervised by a person responsible for their safety. Children should never
be left alone with thisproduct.
ASSEMBLY AND ADJUSTMENTS

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.
Unpacking

WARNING: When moving the machine, always seek assistance. The machine is too
heavy for one person tohandle.
1. Remove the loose packaging material from thebox.
2. Lift the machine out of thebox.
3. Remove the parts box from the interior of themachine.
4. Remove any remaining packing material from themachine.
Mounting the Legs (Fig. G1)
With the legs mounted, the machine is suitable for stand-aloneplacement.
1. Turn the machine upsidedown.
2. Pass a coach bolt
38
from the flat side through the holes into each of the legs
20
.
3. Place a lock knob
39
and washer
40
onto thebolts.
4. Present a leg
20
to each of the mounting points
37
located at the edges on the inside of
the base. For each leg, make sure that the lock knob and washer locate at the outside of
the open endedslot.
5. Tighten the lockknobs.
6. Turn the machine straight up. Make sure it is level; adjust the leg clamping height
ifrequired.
Mounting the Machine to the Workbench (Fig. G2)
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 (Fig. H)
The under-table guard
41
is fitted to the top of the bench sawtable.
1. Place the two hooks on the left of the guard into the oblong slots on the left of the blade
slot
42
.
2. Place the guard flat on the table and press it in the lockinggrommet.
3. To remove, loosen the grommet with a screwdriver and proceed in reverseorder.
Turning the Sawhead and Table Over (Fig. B,I1,I2)
1. Withhold the saw table with one hand and push the table release lever
2
to the left
(Fig.I1).
2. 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
22
.
3. The head assembly is held down by a clamp strap at the front and a height adjuster
25
at
the rear (Fig. B).
4. Remove thestrap.
5. Rotate the wheel
43
counterclockwise whilst holding down the head until the
"U"-shaped bracket
44
can be disengaged from its seating (Fig. I2).
6. Swing and push the height adjusterup.
7. Holding the head firmly, allow the spring pressure to take the head upwards into its
restposition.
Mounting the Saw Blade (Fig. A, J1–J3)

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.
1. Ensure riving knife
18
is secured in the upper rest position (Fig. A).
2. Insert the hex key
45
through the hole
46
in the belt casing into the spindle end (Fig.J1).
Place the blade spanner
47
onto the blade locking screw
48
(Fig. J2).
3. The blade locking screw has a left-handed thread, therefore holding the hex key firmly,
turn the spanner clockwise toloosen.
4. Depress the head lock up guard release lever
13
to release the lower guard
12
, then raise
the lower guard as far aspossible.
5. Remove the blade locking screw
48
and the outside arbor collar
49
(Fig. J3).
6. Make sure the inner flange and both faces of the blade are clean and free ofdust.
7. Install the saw blade
50
onto the shoulder
51
provided on the inside arbor collar
52
,
making sure that the teeth at the bottom edge of the blade are pointing toward the back
of the saw (away from the operator).
8. Carefully ease the blade into position and release the lower bladeguard.
9. Replace the outer arborcollar.
10. Tighten the blade locking screw
48
by turning counterclockwise while holding the hex
key steady with your otherhand.
11. 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 (Fig. K1, K2, L)
1. With the head in the vertical position and the bevel clamp knob
24
released, slacken the
locking screw
53
in the rotating table location plunger
8
(Fig. K1).
2. Pull down the head until the blade just enters the sawkerf.
3. Place a square
54
against the left side
7
of the fence and blade
50
(Fig. K2). The angle
should be 90°.

WARNING: Do not touch the tips of the blade teeth with thesquare.
4. If adjustment is required, proceed as follows:
a. Rotate the eccentric adjustment bush
55
until the face of the saw blade is flat against
the square (Fig. K1).
b. Tighten the locking screw
53
.
5. Check that the red marks
56
near the blade slot
42
are in line with the 0° position
57
on
the two scales (Fig. L).
6. If adjustment is required, loosen the screws
58
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 (Fig. M1,M2)
1. Loosen the bevel clamp knob
24
(Fig. M1).
2. Press the saw head to the right to ensure it is fully vertical and tighten the bevel
clamphandle.
3. Pull down the head until the blade just enters the sawkerf.
4. Place a set square
54
on the table and up against the blade
50
(Fig. M2). The angle
should be 90°.

WARNING: Do not touch the tips of the blade teeth with thesquare.
5. If adjustment is required, proceed as follows:
a. Loosen the bevel clamp knob
24
(Fig. M1) and turn the vertical position adjustment
stop screw
59
in or out until the blade is at 90° to the table as measured with the
square
54
(Fig. M2).
Checking and Adjusting the Mitre Angle (Fig. A,L)
The straight cross-cut and 45° mitre positions are pre-set.
1. Pull up the rotating table location plunger
8
and rotate it counterclockwise a quarter of a
turn (Fig. A).