Dewalt DCS781B Instruction Manual

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ENGLISH

Three Year Limited Warranty

For warranty terms, go to https://www.dewalt.com/Legal/Warranty/3‑Year‑Limited‑Warran

ty.

To request a written copy of the warranty terms, contact: Customer Service at DEWALT

Industrial Tool Co., 701East Joppa Road, Towson, MD 21286or call 1‑800‑4‑DEWALT

(1-800-433-9258).

LATIN AMERICA: This warranty does not apply to products sold in Latin America. For products

sold in Latin America, see country specific warranty information contained in the packaging,

call the local company or see website for warrantyinformation.

FREE WARNING LABEL REPLACEMENT: If your warning labels become illegible or are

missing, call 1‑800‑4‑DEWALT (1-800-433-9258) for a freereplacement.

Thank you for your purchase. Register your product nowfor:

• WARRANTY SERVICE: Registering your product will help you obtain more efficient

warranty service in case there is a problem with yourproduct.

• CONFIRMATION OF OWNERSHIP: In case of an insurance loss, such as fire, flood or theft,

your registration of ownership will serve as your proof ofpurchase.

• FOR YOUR SAFETY: Registering your product will allow us to contact you in the unlikely

event a safety notification is required under the Federal Consumer SafetyAct.

• Register online at www.dewalt.com.

Repairs

The charger and batteries are notserviceable. There are no serviceable parts inside the charger

or batterypack.



WARNING: To assure product SAFETY and RELIABILITY, repairs, maintenance and

adjustment (including brush inspection and replacement, when applicable) should be

performed by a DEWALT factory service center or a DEWALT authorized service center.

Always use identical replacementparts.

Accessories



WARNING: Since accessories, other than those offered by DEWALT, have not been tested

with this product, use of such accessories with this tool could be hazardous. To reduce the

risk of injury, only DEWALT recommended accessories should be used with thisproduct.

Recommended accessories for use with your tool are available at extra cost from your

local dealer or authorized service center. If you need assistance in locating any accessory,

please contact DEWALT Industrial Tool Co., 701East Joppa Road, Towson, MD 21286, call

1‑800‑4‑DEWALT (1-800-433-9258) or visit our website: www.dewalt.com.

Optional Accessories

The following accessories, designed for your saw, may be helpful. Use care in selecting and

usingaccessories.

Dust Bag: DW7053

Equipped with a zipper for easy emptying, the dust bag will capture the majority of the

sawdustproduced.

Crown Molding Fence: DW7084

Used for precision cutting of crownmolding.

Saw Blades

ALWAYS USE 12" (305mm) SAW BLADES WITH 1" (25.4 mm) ARBOR HOLES.SPEED RATING

MUST BE AT LEAST 4800RPM.Never use a smaller diameter blade.It will not be guarded

properly.Use crosscut blades only! Do not use blades designed for ripping, combination

blades or blades with hook angles in excess of 7˚.

BLADE DESCRIPTIONS

APPLICATION DIAMETER TEETH

Construction Saw Blades (maximum thin kerf with anti-stick rim)

General Purpose 12" (305 mm) 32/40

Fine Crosscuts 12" (305 mm) 60

Woodworking Saw Blades (provide smooth, clean cuts)

Fine crosscuts 12" (305 mm) 80

Non-ferrous metals 12" (305 mm) 96

NOTE: For cutting non-ferrous metals, use only saw blades with TCG teeth designed for this purpose.

Dust Duct Cleaning

Depending on your cutting environment, saw dust can clog the dust duct and may prevent

dust from flowing away from the cutting area properly. With the saw unplugged and the saw

head raised fully, low pressure air or a large diameter dowel rod can be used to clear the dust

out of the dustduct.

Worklight Cleaning

For the best worklight performance, perform the following maintenanceregularly.

1. Carefully clean sawdust and debris from worklight lens with a cotton swab.

2. DO NOT use solvents of any kind, they may damage the lens.

3. Dust build‑up can block the worklight and prevent it from accurately indicating the line

ofcut.

4. Follow miter saw’s instruction manual to remove and install blade.

5. With blade removed from saw, clean pitch and build‑up from blade. Pitch and debris can

interfere with the worklight and prevent it from accurately indicating the line ofcut.

SPECIFICATIONS

Light source Power LED

Worklight 6 V DC

Operating Temperature ‑40°F to 221°F (‑40°C to 105°C)

Storage Temperature ‑40°F to 221°F (‑40°C to 105°C)

Environmental Water resistant

Cleaning



WARNING: Blow dirt and dust out of all air vents with clean, dry air at least once a week.

To minimize the risk of eye injury, always wear ANSI Z87.1 approved eye protection when

performing thisprocedure.



WARNING: Never use solvents or other harsh chemicals for cleaning the non‑metallic

parts of the tool. These chemicals may weaken the plastic materials used in these parts.

Use a cloth dampened only with water and mild soap. Never let any liquid get inside the

tool; never immerse any part of the tool into aliquid.

MAINTENANCE



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.



WARNING: To reduce the risk of serious personal injury, DO NOT touch the sharp

points on the blade with fingers or hands while performing anymaintenance.

DO NOT use lubricants or cleaners (particularly spray or aerosol) in the vicinity of the plastic

guard. The polycarbonate material used in the guard is subject to attack by certainchemicals.

1. All bearings are sealed. They are lubricated for life and need no furthermaintenance.

2. Periodically clean all dust and wood chips from around AND UNDER the base and the

rotary table. Even though slots are provided to allow debris to pass through, some dust

willaccumulate.

Special Cuts

NEVER MAKE ANY CUT UNLESS THE MATERIAL IS SECURED ON THE TABLE AND AGAINST

THEFENCE.

Aluminum Cutting (Fig. A, W)

ALWAYS USE THE APPROPRIATE SAW BLADE MADE ESPECIALLY FOR CUTTING ALUMINUM.

These are available at your local DEWALT retailer or DEWALT service center. Certain workpieces,

due to their size, shape or surface finish, may require the use of a clamp or fixture to prevent

movement during the cut. Position the material so that you will be cutting the thinnest cross

section, as shown in FigureW. FigureW also illustrates the wrong way to cut these extrusions.

Use a stick wax cutting lubricant when cutting aluminum. Apply the stick wax directly to the

saw blade

39

before cutting. Never apply stick wax to a movingblade.

The wax, available at most hardware stores and industrial mill supply houses, provides proper

lubrication and keeps chips from adhering to theblade.

Be sure to properly secureworkpiece.

Refer to Saw Blades under Accessories for correct sawblade.

Bowed Material (Fig. X, Y)

When cutting bowed material always position it as shown in FigureX and never like that

shown in Figure Y. Positioning the material incorrectly will cause it to pinch the blade near the

completion of thecut.

Cutting Plastic Pipe or Other Round Material

Plastic pipe can be easily cut with your saw. It should be cut just like wood and CLAMPED

OR HELD FIRMLY TO THE FENCE TO KEEP IT FROM ROLLING. This is extremely important

when making anglecuts.

Cutting Large Material (Fig. Z)

Occasionally you will encounter a piece of wood a little too large to fit beneath the lower

guard. If this occurs, simply place your right thumb on the upper side of the guard and roll the

guard up just enough to clear the workpiece, as shown in Figure Z. Avoid doing this as much

as possible, but if need be, the saw will operate properly and make the bigger cut. NEVER TIE,

TAPE, OR OTHERWISE HOLD THE GUARD OPEN WHEN OPERATING THISSAW.

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

Instruction Manual - Page 17