DeWalt DWS779 Instruction Manual

5
ENGLISH
ASSEMBLY AND ADJUSTMENTS

WARNING: To reduce the risk of serious personal injury, turn unit off and disconnect
it from power source before making any adjustments or removing/installing
attachments or accessories. An accidental start-up can causeinjury.
NOTE: Your miter saw is fully and accurately adjusted at the factory at the time of manufacture.
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. Take a little time now to follow these
directions carefully to maintain the accuracy of which your saw iscapable.
Assembling the Base Extensions (Fig. C)

WARNING: Base extensions must be assembled to both sides of the saw's base before using
the saw.
1. Locate the preassembled threaded stud
51
underneath the saw’sbase.
2. The extension
32
should be oriented as shown in the illustration, sliding fully rearward in the
U-shaped supports.
3. Clamp the extension’s rods against the miter saw base by inserting the clamp
52
over the
threaded stud, followed by the washer
53
, and tightening the wing nut
34
. Ensure the
extension is secure by pulling on the extension to verify no movement.
4. Repeat steps 1 through 3 on the other side.
32
Fig. C
52
34
53
51
Changing or Installing a New Saw Blade (Fig.A, D–F)

WARNING: To reduce the risk of serious personal injury, turn off the tool and
disconnect it from the power source before attempting to move it, change
accessories or make anyadjustments.

CAUTION:
• Never depress the spindle lock button while the blade is under power orcoasting.
• Do not cut ferrous metal (containing iron or steel) or masonry or fiber cement product
with this mitersaw.
Removing the Blade
1. Unplug thesaw.
2. Raise the arm to the upper position and raise the lower guard
4
as far aspossible.
3. Loosen, but do not remove guard bracket screw
54
until the bracket can be raised far
enough to access the blade screw
35
. Lower guard will remain raised due to the position of
the guard bracketscrew.
4. Depress the spindle lock button
19
while carefully rotating the saw blade by hand until the
lockengages.
5. Keeping the button depressed, use the other hand and the blade wrench
37
provided to
loosen the blade screw. (Turn clockwise, left-hand threads.)
Fig. D
54
37
35
Fig. E
19
6. Remove the blade screw (
35
) , outer blade clamp (
38
) , and blade (
39
) . The inner clamp
clamp (
41
and if used, the 1" (25.4 mm) blade adapter, may be left on thespindle.
NOTE: For blades with a blade hole of 5/8" (15.88 mm), the 1" (25.4 mm) blade adapter is
notused.
Fig. F
35
38
39
41
Installing a Blade
1. Unplug thesaw.
2. With the arm raised, the lower guard held open and the guard bracket raised, place the blade
on the spindle, onto the blade adapter [if using a blade with a 1" (25.4 mm) diameter blade
hole] and against the inner blade clamp with the teeth at the bottom of the blade pointing
toward the back of thesaw.
3. Assemble the outer blade clamp onto thespindle.
4. Install the blade screw
35
and, engaging the spindle lock, tighten the screw firmly with the
blade wrench provided. (Turn counterclockwise, left-hand threads.)
NOTE: When using blades with a 5/8" (15.88 mm) diameter blade hole, the blade adapter
will not be used and should be stored in a safe place for futureuse.
5. Return the guard bracket to its original position and firmly tighten the guard bracket
screw
54
to hold bracket inplace.

WARNING:
• The guard bracket must be returned to its original position and the screw
tightened before activating thesaw.
• Failure to do so may allow the guard to contact the spinning saw blade resulting
in damage to the saw and severe personalinjury.
Miter Scale Adjustment (Fig.A, G)
Unlock the miter lock handle
5
and swing the miter arm until the miter latch button
6
locks
it at the 0° miter position. Do not lock the miter lock handle. Place a square against the saw’s
fence and blade, as shown. (Do not touch the tips of the blade teeth with the square. To do
so will cause an inaccurate measure ment.) If the saw blade is not exactly perpendicular to the
fence
10
, loosen the four miter scale screws
8
that hold the miter scale and move the miter
lock handle and the scale left or right until the blade is perpendicular to the fence, as measured
with the square. Retighten the four screws. Pay no attention to the reading of the miter pointer
at thistime.
Fig. G
6
10
5

DeWalt DWS779 Specifications

General

Quantity per pack	1 pc(s)