DeWalt DWS778-QS/GB Traducido De Las Instrucciones Originales página 34

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Removing the Blade
1. Unplug the saw.
 28 
2. Insert the 6 mm hex key 
into the opposite location of the blade
shaft and hold it (Fig. E).
 28 
3. Use second hex key 
as shown in Figure E as spindle lock.
 5 
4. Loosen the blade bolt 
by turning clockwise. Remove the blade bolt
 4 
and the outer flange 
.
5. Press the lower guard lock-up release lever 
 6 
guard 
and remove the saw blade 
Installing a Blade
1. Unplug the saw.
2. Install the new saw blade onto the shoulder provided on the inner
 35 
flange 
making sure that the teeth at the bottom edge of the blade
are pointing towards the fence (away from the operator).
 4 
3. Replace the outer flange 
, making sure that the location lugs 
engaged correctly, one on each side of the motor shaft.
 5 
4. Tighten the blade bolt 
by turning counterclockwise while holding
the 6 mm hex key 
 28 
engaged with your other hand (Fig. E).

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.: DT4282 is suggested.
Transporting the Saw (Fig. A, B)

WARNING: To reduce the risk of serious personal injury,
ALWAYS lock the rail lock knob, mitre latch, bevel clamp handle, lock
down button and fence lock knobs before transporting saw. Never use
guards for transporting or lift up.
Before transporting the saw, verify that the cord is disconnected.
To transport the saw, lower the head and depress the lock down
 25 
button 
.
Lock the rail lock knob with the saw head in the front position, lock the
mitre arm in the full left mitre angle, slide the fence 
inward and lock the fence lock knobs, then lock the bevel clamp
 21 
handle 
with the saw head in the vertical position to make the tool
as compact as possible.
Always use the base extension handles 
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.
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.
Adjusting the Rails for Constant Cutting Depth
(Fig. A, B, F, G)
The blade must run at a constant cutting depth along the full length of the
table and must not touch the fixed table at the rear of the slot or at the front
of the rotating arm. To achieve this, the rails 
the table when the saw head is fully depressed.
1. Press the lower guard lock up release lever 
2. Press the saw head fully to the rear position and measure the height
 12
from the rotating table 
to the bottom of the outer flange 
 17
3. Loosen the rail lock knob 
(Fig. B).
4. Keeping the saw head fully depressed, pull the head to the end of
its travel.
5. Measure the height indicated in Figure G again. Both values should
be identical.
32
 2 
to raise the lower blade
 7 
.
 36 
are
 15 
completely
 20 
to carry the saw.
 26 
must be perfectly parallel to
 2
(Fig. A).
 4
(Fig. G).
6. If adjustment is required, proceed as follows (Fig. F):
a. Loosen the locknut
 37
in the bracket
extraction nozzle and adjust the screw 
small steps.
37
b. Tighten the locknut  
.

WARNING: Always check that the blade does not touch the table at
the rear of the slot or at the front of the rotating arm at 90° vertical
and 45° bevel positions. Do not switch on before having checked this!
Adjusting the Fence (Fig. H)
Lift the sliding fence lock lever 
 40 
 15 
sliding fence 
to a position that avoids the blade, then tighten the fence
lock lever by turning clockwise.

WARNING: The guide grooves can become clogged with sawdust. Use
a stick or some low pressure air to clear the guide grooves.
Checking and Adjusting the Blade to the Fence
(Fig. A, B, I, J)
1. Slacken the mitre latch 
 11 
.
2. Place your thumb on the mitre arm 
to release the rotating table/mitre arm 
3. Swing the mitre arm until the latch locates it at the 0° mitre position.
4. Pull down the head and lock it in this position using the lock-down
 25 
button 
.
5. Check that the two 0° markings 
just visible.
 42 
6. Place a square 
against the left side of the fence 

WARNING: Do not touch the tips of the blade teeth with the square.
7. If adjustment is required, proceed as follows:
a. Loosen the mitre scale screws 
arm assembly left or right until the blade is at 90° to the fence as
measured with the square 
 42 
b. Retighten the mitre scale screws 
Checking and Adjusting the Blade to the Table
(Fig. B, K–M)
1. Loosen the bevel clamp handle 
2. Press the saw head to the right to ensure it is fully vertical and tighten
the bevel clamp handle.
3. Place a square 
 42 
on the table and up against the saw blade 

WARNING: Do not touch the tips of the blade teeth with the square.
4. If adjustment is required, proceed as follows:
a. Loosen the bevel clamp handle 
 43
adjustment stop screw 
in or out with the hex wrench (as shown
in Fig. K) until the blade is at 90° to the table as measured with
the square.
 46 
b. If the bevel pointer 
does not indicate zero on the bevel scale 
loosen the bevel scale screws 
scale as necessary.
Checking and Adjusting the Bevel Angle (Fig. K, M)
The bevel override allows the maximum bevel angle to be set at 45° or 48°
as required.
-
Left = 45°
-
Right = 48°
1. Make sure the override lever 
 44 
2. Loosen the bevel clamp handle 
and move the saw head to the left.
3. This is the 45° bevel position.
 38
under the upper dust
 39 
as required, proceeding in
counterclockwise to loosen. Move the
 10 
and squeeze the mitre latch 
 12 
.
 41 
 13 
on the mitre scale 
are
 15 
and blade 
 14 
(Fig. I) and move the scale/mitre
(Fig. J).
 14 
.
 21 
(Fig. K).
 7 
(Fig. L).
 21
and turn the vertical position
 45 
that secure the scale and move the
is located in the left position.
 21
by pulling it outward then down
 11 
 7 
.
 24 
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