Features And Controls; Adjustment - DeWalt DHS780 Mode D'emploi

EnGLISH
DHS780-XE OnLY (FIG. A, H–k)
1. Disconnect the saw from the power supply or remove batteries.
2. Raise the arm to the upper position and raise the lower guard
3. Loosen, but do not remove guard bracket screw
raised far enough to access the blade screw
position of the guard bracket screw.
4. Depress the spindle lock button 49 while carefully rotating the saw blade by hand until
the lock engages.
5. Keeping the button depressed, use the other hand and the wrench provided
the blade screw 44 . (Turn clockwise, left-hand threads.)
6. Remove the blade screw , outer clamp washer
44
inner clamp washer 48 may be left on the spindle.
nOTE: For blades with a blade hole of 15.88 mm, the 25.4 mm blade adapter is not used.
Installing a Blade (Fig. A, H–K)
1. Disconnect the saw from the power supply or remove batteries.
2. With the arm raised and the lower guard held open, place the adapter and blade on the
spindle, and seat it on the inner blade clamp with the teeth at the bottom of the blade
pointing toward the back of the saw.
3. Assemble the outer clamp washer onto the spindle.
4. Install the blade screw and, engaging the spindle lock, tighten the screw firmly with
wrench provided (turn counterclockwise, left-hand threads).
5. DHS780-XE OnLY, FIG. I: Return the guard bracket
tighten the guard bracket screw 62 to hold bracket in place.

WARNING: The guard bracket must be returned to its original position and the
guard bracket 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.

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.: DT4260 is suggested.
Transporting the Saw (Fig. A)

WARNING: To reduce the risk of serious personal injury, ALWAYS lock the rail lock
knob, mitre lock handle, bevel lock handle, lock down pin and fence adjustment knobs
before transporting saw. Never use guards for transporting or lift up.
In order to conveniently carry the mitre saw, a carrying handle
top of the saw arm.
• To transport the saw, lower the head and depress the lock down pin
• 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
lock knob 27 with the saw head in the vertical position to make the tool as compact
as possible.
• Always use the carrying handle 3 or the base extension handles

Features and Controls


WARNING: To reduce the risk of serious personal injury, turn tool off and remove
the battery packs or power supply before transporting, making any adjustments,
cleaning, repairing, or removing/installing attachments or accessories. Be sure the
trigger switch is in the OFF position. An accidental start-up can cause injury.
Mitre Control (Fig. L)
The mitre lock handle 7 and mitre release button
and 50° left. To mitre the saw, lift the mitre lock handle, push the mitre release button and set
the mitre angle desired on the mitre scale
mitre angle.
Bevel Lock Knob (Fig. A)
The bevel lock allows you to bevel the saw 49° left or right. To adjust the bevel setting, turn the
knob 27 counterclockwise. The saw head bevels easily to the left or to the right once the 0°
bevel override knob is pulled. To tighten, turn the bevel lock knob clockwise.
0° Bevel Override (Fig. A)
The bevel stop override 29 allows you to bevel the saw to the right past the 0° mark.
When engaged, the saw will automatically stop at 0° when brought up from the left. To
temporarily move past 0° to the right, pull the bevel lock knob
the override will be reengaged. The bevel lock knob can be locked out by twisting the
knob 180°.
When at 0°, the override locks in place. To operate the override, bevel the saw slightly to
the left.
45° Bevel Stop Override (Fig. M)
There are two bevel stop override levers, one on each side of the saw. To bevel the saw, left or
right, past 45°, push the 45° bevel override lever
the saw can bevel past these stops. When the 45° stops are needed, pull the 45° bevel override
lever forward.
Crown Bevel Pawls (Fig. M)
nOTE: Crown bevel cuts can be made using hard stops for a fast and accurate setting at 30°
and 33.9°.
When cutting crown molding laying flat, your saw is equipped to accurately and rapidly set
a crown stop, left or right (refer to Instructions for Cutting Crown Molding Laying Flat and
Using the Compound Features).
The 30° crown bevel pawl 55 can be rotated to contact the crown adjustment screw
38
1 as far as possible.
62 until the guard bracket 63
44 . Lower guard will remain raised due to the
26
, adapter and blade
45 46 47
63 to its original position and firmly
3 has been included on the
18 .
15 completely inward and lock the bevel
14 .
8 allow you to mitre your saw to 60° right
12 . Push down on the mitre lock handle to lock the
27 . Once the knob is released,
53 rearward. When in the rearward position,
To reverse the 30° crown bevel pawl to 33.9°, remove the retaining screw
pawl 54 and the 30° crown bevel pawl
text is facing up. Reattach the retaining screw
crown bevel pawl. The accuracy setting will not be affected.
can be
22.5° Bevel Pawls (Fig. M)
Your saw is equipped to rapidly and accurately set a 22.5° bevel, left or right. The 22.5° bevel
pawl can be rotated to contact the crown adjustment screw
54
Rail Lock Knob (Fig. A)
to loosen
The rail lock knob 23 allows you to lock the saw head firmly to keep it from sliding on the
rails 22 . This is necessary when making certain cuts or when transporting the saw.
. The
Grooving Stop (Fig. A)
The grooving stop 34 allows the depth of cut of the blade to be limited. The stop is useful
for applications such as grooving and tall vertical cuts. Rotate the grooving stop forward
and adjust the depth adjustment screw
adjustment, tighten the wing nut
bypass the grooving stop feature. If the depth adjustment screw is too tight to loosen by hand,
the provided wrench 26 can be used to loosen the screw.
Lock Down Pin (Fig. A)

WARNING: The lock down pin should be used only when carrying or storing the saw.
NEVER use the lock down pin for any cutting operation.
To lock the saw head in the down position, push the saw head down, push the lock down
pin in and release the saw head. This will hold the saw head safely down for moving the
18
saw from place to place. To release, press the saw head down and pull the pin out.

Adjustment

Your mitre 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
instructions below to adjust your saw. Once made, these adjustments should remain accurate.
Mitre Scale Adjustment (Fig. L, P)
1. Unlock the mitre lock handle
locks it at the 0° mitre position. Do not lock the mitre lock handle.
2. Place a square against the saw's fence and blade, as shown in Figure P. (Do not touch the
tips of the blade teeth with the square. To do so will cause an inaccurate measure ment.)
3. If the saw blade is not exactly perpendicular to the fence, loosen the four screws
hold the mitre scale
12
the blade is perpendicular to the fence, as measured with the square.
4. Retighten the four screws. Pay no attention to the reading of the mitre pointer
this time.
Mitre Pointer Adjustment (Fig. L)
1. Unlock the mitre lock handle
2. With the mitre lock handle unlocked, allow the mitre latch to snap into place as you rotate
the mitre arm to zero.
3. Observe the mitre pointer
not indicate exactly zero, loosen the mitre pointer screw
reposition the pointer and tighten the screw.
Bevel Square to Table Adjustment (Fig. A, M, O)
1. To align the blade square to the table, lock the arm in the down position with the lock
down pin 18 .
2. Place a square against the blade, ensuring the square is not on top of a tooth (Fig. O).
3. Loosen the bevel lock knob
4. Rotate the 0° bevel adjustment screw (
necessary so that the blade is at 0° bevel to the table.
Bevel Pointer Adjustment (Fig. M)
If the bevel pointers 17 do not indicate zero, loosen each screw
pointer in place and move them as necessary. Ensure the 0° bevel is correct and the bevel
pointers are set before adjusting any other bevel angle screws.
Bevel Stop 45° Right and Left Adjustment (Fig. A, M)
To adjust the right 45° bevel stop:
1. Loosen the bevel lock knob
0° bevel stop.
2. If the bevel pointer 17
the 45° bevel adjustment screw
left 45° bevel adjustment screw
some units) until the bevel pointer indicates 45°. Ensure the 45° bevel override lever
in contact with the 45° bevel adjustment screw
To adjust the left 45° bevel stop:
1. Loosen the bevel lock knob
2. If the bevel pointer 17
screw 56 until the bevel pointer reads 45°.
Adjusting the Bevel Stop to 22.5° (or 30°) (Fig. A, M)
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
knob 27 and tilt the head fully to the left. If the bevel pointer
22.5°, turn the crown adjustment screw
52 . provided) until the bevel pointer reads 22.5°.
55 . Flip the 30° crown bevel pawl
57 to secure the 22.5° bevel pawl and the 33.9°
.
52
33 to set the desired depth of cut. To secure the
32 . Rotating the grooving stop to the rear of the saw will
7 and swing the mitre arm until the mitre release button
and move the mitre lock handle and the scale left or right until
to move the mitre arm to the zero position.
7
11 and mitre scale 12 shown in Figure L. If the pointer does
50 holding the pointer in place,
27 and ensure the arm is firmly against the 0° bevel stop.
58 Fig. M) with the 6 mm blade hex wrench
51 that holds each bevel
27 and pull the bevel stop override knob
does not indicate exactly 45° when the saw is fully to the right and
56 is contacting the 45° bevel override lever, turn the
56 with the 6 mm blade hex wrench
56 .
and tilt the head to the left.
27
does not indicate exactly 45°, turn the right 45° bevel adjustment
54 . Loosen the bevel lock
17 does not indicate exactly
52 contacting the pawl with a 10 mm wrench (not
57 , the 22.5° bevel
55 so the 33.9°
8
13 that
11 at
26 as
29 to override the
26 (provided with
53 is