Dewalt DCS781B 60V MAX Brushless 12in. Double Bevel Sliding Miter Saw

Instruction Manual - Page 13

For DCS781B. Also, The document are for others Dewalt models: DCS781*

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11
ENGLISH
Changing or Installing a New Saw Blade (Fig. A, G)
WARNING: To reduce the risk of serious personal injury, turn tool off, and remove
the battery pack before transporting, making any adjustments, cleaning,
repairing, or removing/installing attachments or accessories. An accidental
start‑up can causeinjury.
Adjusting the Bevel Stop to 22.5 ° (or 33.9 °) (Fig. A, J)
NOTE: Adjust the bevel angles only after performing the 0° bevel angle and bevel
pointeradjustment.
To set the left 22.5° bevel angle, flip out the left 22.5° bevel pawl
47
. Loosen the bevel
lock knob
13
and tilt the head fully to the left. If the bevel pointer does not indicate
exactly 22.5°, turn the crown adjustment screw
46
contacting the pawl with a 7/16”
wrench until the bevel pointer reads 22.5°.
To adjust the right 22.5° bevel angle, flip out the right 22.5° bevel pawl. Loosen the bevel
lock knob and pull the 0° bevel stop and rotate 90degrees to override the 0° bevel stop.
When the saw is fully to the right, if the bevel pointer does not indicate exactly 22.5°,
turn the crown adjustment screw contacting the pawl with a 7/16” wrench until the bevel
pointer indicates exactly22.5°.
Adjusting the Bevel Stop to 45 ° Left or Right (Fig. A, J)
To adjust the right 45° bevel angle, loosen the bevel lock knob
13
and pull the 0° bevel stop,
rotate 90° (either clockwise or counterclockwise) and let go for the spring loaded pin to lock
in to override the 0° bevel stop. When the saw is fully to the right, if the bevel pointer does not
indicate exactly 45°, turn the left 45° bevel adjustment screw
45
with the 1/2" blade wrench
until the bevel pointer indicates 45°.
To adjust the left 45° bevel stop, first loosen the bevel lock knob and tilt the head to the left. If
the bevel pointer does not indicate exactly 45°, turn the right 45° bevel adjustment screw
45
until the bevel pointer
43
reads 45°.
Bevel Pointer (Fig. J)
If the bevel pointer
43
does not indicate zero, loosen the screw
44
that holds it in place and
move the pointer as necessary. Ensure the 0° bevel is correct and the bevel pointers are set
before adjusting any other bevel anglescrews.
Bevel Square to Table (Fig. A, I, J)
To align the blade square to the table
18
, lock the arm in the down position with the lock
down pin
19
. Place a square against the blade, ensuring the square is not on top of a tooth.
Loosen the bevel lock knob
13
and ensure the arm is firmly against the 0° bevel stop. Rotate
the 0° bevel adjustment screw
42
with the 1/2” blade wrench as necessary so that the blade
is at 0° bevel to thetable.
Miter Pointer Adjustment (Fig. A)
Unlock the miter lock handle
7
to move the miter arm to the zero position. With the miter
lock handle unlocked, squeeze the miter detent latch
8
and allow the miter latch to snap into
place as you rotate the miter arm to zero. Observe the miter pointer
31
and miter scale
9
shown in FigureA. If the pointer does not indicate exactly zero, loosen the miter pointer
screw
27
holding the pointer in place, reposition the pointer and tighten thescrew.
Miter Scale Adjustment (Fig. A, H)
Unlock the miter lock handle
7
and swing the miter arm until the miter latch
8
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
12
, loosen the four miter scale screws
10
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.
Assembling the Stabilizer Bar (Fig. F)
Your saw includes one base stabilizer
14
This must be installed before using your saw. Insert
the stabilizer into the holes in the back of the unit. Move the stabilizer in or out until it contacts
the work surface. Then tighten the screws
62
in the base to fasten thestabilizer.
Bench Mounting (Fig. A)
Mounting holes
5
are provided in all 4feet to facilitate bench mounting, as shown in FigureA.
(Two different‑sized holes are provided to accommodate different sizes of screws. Use either
hole, it is not necessary to use both.) Always mount your saw firmly to a stable surface to
prevent movement. To enhance the tool’s portability, it can be mounted to a piece of 1/2”
(12.7 mm) or thicker plywood which can then be clamped to your work support or moved to
other job sites andreclamped.
NOTE: If you elect to mount your saw to a piece of plywood, make sure that the mounting
screws don’t protrude from the bottom of the wood. The plywood must sit flush on the work
support. When clamping the saw to any work surface, clamp only on the clamping bosses
where the mounting screw holes are located. Clamping at any other point will surely interfere
with the proper operation of thesaw.
CAUTION: To prevent binding and inaccuracy, be sure the mounting surface is not
warped or otherwise uneven. If the saw rocks on the surface place a thin piece of material
under one saw foot until the saw sits firmly on the mountingsurface.
Assembling the Base Extensions (Fig. E)
WARNING: Base extensions must be assembled to both sides of the saw's base before
using thesaw.
1. The extension
32
should be oriented as shown in Figure E, sliding fully into the
U‑shapedsupports.
2. Clamp the extension’s rods against the miter saw base by inserting the extension
screw
63
entirely through and the clamp.
3. Repeat steps 1through 3on the other side.
Miter Control (Fig. A)
The miter lock lever and miter detent latch allow you to miter your saw to 60° right and 50°
left. To miter the saw, lift the miter lock handle
7
, squeeze the miter detent latch
8
and
move the miter arm to the angle desired on the miter scale
9
as shown at the miter scale
pointer
31
. Push down on the miter lock lever to lock the miter arm inplace.
Use of CUTLINE™ LED Worklight (Fig. A)
CAUTION: Do not stare into worklight. Serious eye injury couldresult.
NOTE: The battery must be charged and connected to the mitersaw.
The CUTLINE™ LED Worklight can be turned on by the momentary switch
21
. The light will
automatically turn off within 20seconds if the saw is not in use. The light is also activated
automatically every time the tool's main trigger
1
ispulled.
To cut through an existing pencil line on a piece of wood, turn on the CUTLINE™ worklight
using the momentary switch
21
(not with the main trigger), then pull down on the operating
handle
2
to bring the saw blade close to the wood. The shadow of the blade will appear
on the wood. This shadow line represents the material that the blade will remove when
performing a cut. To correctly locate your cut to the pencil line, align the pencil line with the
edge of the blade’s shadow. Keep in mind that you may have to adjust the miter or bevel
angles in order to match the pencil lineexactly.
Your saw is equipped with a battery monitoring feature. The CUTLINE™ worklight begins
to flash when the battery is near the end of its useful charge and/or when the battery is
too hot. Charge the battery prior to continuing cutting applications. Refer to Charging
Procedure under Important Safety Instructions for All Battery Chargers for battery
charginginstructions.
Familiarization (Fig. A, D)
Your miter saw is not fully assembled in the carton. Refer to Assembling the Base Extensions
and Assembling the Stabilizer Bar sections for assembly instructions. Open the box and lift
the saw out by the convenient lifting handle
15
, as shown in FigureD.
Place the saw on a smooth, flat surface such as a workbench or strongtable.
Examine Figure A to become familiar with the saw and its various parts. The section on
adjustments will refer to these terms and you must know what and where the partsare.
CAUTION: Pinch Hazard. To reduce the risk of injury, keep thumb underneath the handle
when pulling the handle down. The lower guard will move up as the handle is pulled
down which could cause pinching. The handle is placed close to the guard for specialcuts.
Press down lightly on the operating handle
2
and pull the head lock knob
19
and rotate
90degrees. Gently release the downward pressure and hold the arm allowing it to rise to its
full height. Use the head lock knob when carrying the saw from one place to another. Always
use the lifting handle
15
to transport the saw or the hand indentations
11
shown in FigureA.
Drive
60Volt motor
3800RPM
Cut helical gears and bevel gears
Carbide tooth blade
Automatic electric brake
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 (Fig. A, G)
1. Remove battery pack
3
from thesaw.
2. Raise the arm to the upper position and raise the lower guard
6
as far aspossible.
3. Depress the spindle lock button
36
while carefully rotating the saw blade by hand until
the lockengages.
4. Using your finger, pivot the blade bolt plate
38
to gain access to blade bolt head
40
.
5. Keeping the spindle lock button depressed and blade bolt plate pushed out of the way,
use the blade wrench
37
provided to loosen blade screw. (Turn clockwise, left‑hand
threads.) Remove the blade screw. 
6. Proceed to remove the outer clamp washer, blade adaptor and sawblade.
Installing a Blade (Fig. A, G)
1. Remove battery pack
3
from thesaw.
2. Raise the saw head to the upper position and raise the lower guard
6
as far as possible.
Place the blade
39
on the spindle, following by the blade adaptor
57
then outer clamp
washer
56
. Make sure to match arrow direction on blade with the arrow direction on
guardplate.
3. Depress the spindle lock button
36
while carefully rotating the saw blade by hand until
the lockengages.
4. Using your finger, push back the blade bolt plate
38
to gain access to blade bolt head
40
.
5. Keeping the spindle lock button depressed and blade bolt plate pushed out of the
way, use the blade wrench
37
provided to firmly tighten the blade screw. (Turn
counter‑clockwise, left‑hand threads.)
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