DeWalt DHS790 - ASSEMBLY; FEATURES AND CONTROLS

7
ENGLISH
Transporting the Saw (Fig. A, H)

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. An accidental
start-up can causeinjury.

WARNING: To reduce the risk of serious personal injury, ALWAYS lock the rail lock
knob
22
, miter lock lever
6
, bevel lock knob
26
, lock down pin
17
and fence
adjustment knobs (
53
, Fig.H) before transportingsaw.
In order to conveniently carry the miter saw from place to place, a lifting handle
18
has been
included on the top of the saw arm and hand indentations
28
in thebase.
To transport the saw, lower the arm of the saw and press in the lock down pin
17
to secure
thearm.
Head 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 head down, push the lock down pin
17
in
and release the saw head. This will hold the saw head safely down for moving the saw from place
to place. To release, press the saw head down and pull the pinout.
ASSEMBLY

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. 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. F)

WARNING: Base extensions must be assembled to both sides of the saw's base before using
thesaw.
1. Locate the preassembled threaded stud
55
underneath the saw’sbase.
2. The extension
13
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
56
over the
threaded stud, followed by the washer
57
, and tightening the wing nut
58
. Ensure the
extension is secure by pulling on the extension to verify no movement.
4. Repeat steps 1 through 3 on the other side.
13
Fig. F
56
58
57
55
Bench Mounting (Fig. A)
Mounting holes
5
are provided in all 4 feet to facilitate bench mounting. (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 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.
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. An accidental
start-up can causeinjury.
Use of CUTLINE™ LED Worklight (Fig. A)

CAUTION: Do not stare into worklight. Serious eye injury couldresult.
The CUTLINE™ LED Worklight can be turned on by the momentary switch
19
. 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
2
ispulled.
To cut through an existing pencil line on a piece of wood, turn on the CUTLINE™ worklight
using the momentary switch
19
(not with the main trigger), then pull down on the operating
handle
1
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.
Miter Control (Fig. G)
The miter lock lever and miter release button allow you to miter your saw to 60° right and 50° left.
To miter the saw, lift the miter lock lever
6
, push the miter release button
7
and move the miter
arm to the angle desired on the miter scale
11
as shown at the miter scale pointer
10
. Push
down on the miter lock lever to lock the miter arm inplace.
Fig. G
11 10
8 7 6
12
Miter Detent Override (Fig. G)
The miter detent override lever
8
allows your saw to override the common stop angles (detents).
To override the detents, unlock the miter lock lever
6
by pulling upward. Push the miter detent
override lever
8
up, and move the miter arm to the angle desired on the miter scale
11
. Push
down on the miter lock lever to lock the miter arm inplace.
Bevel Lock (Fig. H)
The bevel lock allows you to bevel the saw 49° left or right. To adjust the bevel setting, turn the
bevel lock knob
26
counterclockwise. The saw head will then bevel easily to the left or to the
right. To tighten, turn the bevel lock knobclockwise.
0° Bevel Override (Fig. H)
The bevel override allows you to bevel the saw to the right, past the 0°mark.
When the 0° bevel override lever
29
is engaged (the lever will be turned up), the saw will
automatically stop at 0° when brought up from the left. To move past 0° to the right, bevel the
saw slightly to the left of 0°, then pull the 0° bevel override lever
29
out. The saw head can now
be beveled past 0° to the right. Lock the saw head at the desired angle by turning the bevel lock
knob
26
clockwise to tighten. The 0° bevel override lever can be locked out by twisting the lever
so it facesdown.