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ALWAYS MAKE DRY RUNS (UNPOWERED) BEFORE FINISH CUTS SO THAT
YOU CAN CHECK THE PATH OF THE BLADE. DO NOT CROSS HANDS, AS
SHOWN IN FIGURE N2.
•
Keep both feet firmly on the floor and maintain proper balance. As you
move the mitre arm left and right, follow it and stand slightly to the side
of the saw blade.
•
Sight through the guard louvers when following a pencil line.
Trigger Switch (Fig. A2)
To turn the saw on, push the lock-off lever
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trigger switch
. The saw will run while the switch is depressed. Allow the
blade to spin up to full operating speed before making the cut. To turn the
saw off, release the switch. Allow the blade to stop before raising the saw
head. There is no provision for locking the switch on. A hole
in the trigger for insertion of a padlock to lock the switch off.
Your saw is not equipped with an automatic electric blade brake, but the
saw blade should stop within 10 seconds of trigger release. This is not
adjustable. If the stop time repeatedly exceeds 10 seconds, have the tool
serviced by an authorised D
WALT service centre.
e
Always be sure the blade has stopped before removing it from the kerf.
Setting the Variable Speed (Fig. A2)
DWS780 Only
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The speed control dial
can be used for advance setting of the required
range of speed.
•
Turn the speed control dial
by a number.
•
Use high speeds for sawing soft materials such as wood.
Use low speeds for sawing metal.
Dust Extraction (Fig. A2, C)
WARNING: Certain dust, such as oak or beech dust, is
considered carcinogenic, especially in connection with wood-
treatment additives.
•
Always use dust extraction.
•
Provide for good ventilation of the work space.
•
It is recommended to wear an appropriate respirator.
Your saw has a built-in dust port
shop vacuum system to be connected.
To Attach the Dust Bag
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1. Fit the dust bag
to the dust port
To Empty the Dust Bag
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1. Remove dust bag
from the saw and gently shake or tap the dust
bag to empty.
2. Reattach the dust bag back onto the dust port
You may notice that all the dust will not come free from the bag. This will
not affect cutting performance but will reduce the saw's dust collection
efficiency. To restore your saw's dust collection efficiency, depress the spring
inside the dust bag when you are emptying it and tap it on the side of the
trash can or dust receptacle.
CAUTION: Never operate this saw unless the dust bag or
D
WALT dust extractor is in place. Wood dust may create a
e
breathing hazard.
Use of XPS LED Worklight System (Fig. A1, A2)
nOTE: The mitre saw must be connected to a power source.
The XPS LED Worklight System is equipped with an on/off switch
XPS LED Worklight System is independent of the mitre saw's trigger switch.
The light does not need to be on in order to operate the saw.
To cut through an existing pencil line on a piece of wood:
1. Turn on the XPS system, then pull down on the operating handle
bring the saw blade close to the wood. The shadow of the blade will
appear on the wood.
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23
to the left, then depress the
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35
to the desired range, which is indicated
33
that allows either a dust bag
33
.
33
.
2. Align the pencil line with the edge of the blade's shadow. You may
have to adjust the mitre or bevel angles in order to match the pencil
line exactly.
nOTE: If the LED is damaged, it must be replaced only by D
authorised service organisation.
Through-Cutting Operations (Fig. A1, A2, O, P)
If the slide feature is not used, ensure the saw head is pushed back as far
as possible and the rail lock knob
from sliding along its rails as the workpiece is engaged.
Cutting of multiple pieces is not recommended but can be done safely by
ensuring that each piece is held firmly against the table and fence.
Straight Vertical Crosscut
is provided
1. Set and lock the mitre arm at zero, and hold the wood firmly on the
15
table
and against the fence
2. With the rail lock knob
trigger switch
3. When the saw comes up to speed, lower the arm smoothly and slowly
to cut through the wood. Let the blade come to a full stop before
raising arm.
Sliding Crosscut (Fig. O)
When cutting anything larger than a 51 x 150 mm (51 x 105 mm at
45° mitre) workpiece, use an out-down-back motion with the rail lock
4
knob
loosened.
Pull the saw out toward you, lower the saw head down toward the
workpiece, and slowly push the saw back to complete the cut.
Do not allow the saw to contact the top of the workpiece while pulling out.
The saw may run toward you, possibly causing personal injury or damage to
the workpiece.
Mitre Crosscut (Fig. P)
The mitre angle is often 45° for making corners, but can be set anywhere
from zero to 50° left or 60° right. Proceed as for a straight vertical crosscut.
When performing a mitre cut on workpieces wider than 51 x 105 mm that
are shorter in length, always place the longer side against the fence.
Bevel Cut (Fig. A1, A2)
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or a
Bevel angles can be set from 49° right to 49° left and can be cut with the
mitre arm set between 50° left or 60° right. Refer to the Features and
Controls section for detailed instructions on the bevel system.
1. Loosen the bevel lock knob
desired. It is necessary to move the fence
the fence adjustment knob
2. Tighten the bevel lock firmly.
At some extreme angles, the right or left side fence might have to be
removed. Refer to Fence Adjustment in the Adjustments section for
important information on adjusting the fences for certain bevel cuts.
To remove the left or right fence, unscrew the fence adjustment knob
several turns and slide the fence out. The fence lanyard
fence from being removed completely from the saw or being lost.
Once the bevel operations are completed, reposition the fences.
Quality of Cut
The smoothness of any cut depends on a number of variables, such as the
material being cut, blade type, blade sharpness and rate of cut.
When smoothest cuts are desired for molding and other precision work, a
sharp (60 tooth carbide) blade and a slower, even cutting rate will produce
25
. The
the desired results.
WARNING: Ensure that the material does not move or creep while
cutting; clamp it securely in place. Always let the blade come to a full
stop before raising arm. If small fibers of wood still split out at the rear
2
to
of the workpiece, stick a piece of masking tape on the wood where
the cut will be made. Saw through the tape and carefully remove tape
when finished.
4
is tightened. This will prevent the saw
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.
4
tightened, turn on the saw by squeezing the
22
.
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, and move the saw to the left or right as
11
to allow clearance. Tighten
10
after positioning the fences.
WALT or an
e
10
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prevents the
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