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CLEANING THE D

e

WALT CORDED POWER SUPPLY

 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.

CLEANING THE CORDED POWER SUPPLY RECEPTACLE

WARNING: 

Blow debris out of the corded power supply receptacle (BF) with clean, dry 

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

respiratory protection when performing this.

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 battery pack or corded power 

supply removed 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.

CUTLINE

 LED WORKLIGHT CLEANING

For the best worklight performance, perform the following maintenance regularly with the 

battery or corded power supply removed.
  •  Carefully clean sawdust and debris from worklight lens with a cotton swab. 
  •  DO NOT use solvents of any kind, they may damage the lens. 
  •  Dust build-up can block the worklight and prevent it from accurately indicating the line of 

cut.

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

Accessories

 WARNING: 

Since accessories, other than those offered by D

e

WALT, have not been tested 

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

risk of injury, only D

e

WALT 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 D

e

WALT Industrial Tool Co., 701 East Joppa Road, Towson, MD 21286, call 

1-800-4-D

e

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

OPTIONAL ACCESSORIES

The following accessories, designed for your saw, may be helpful. In some cases, other locally 

obtained work supports, length stops, clamps, etc., may be more appropriate. Use care in 

selecting and using accessories.

Extension 

Work Support: 

DW7080

Used to support long 

overhanging work pieces, 

the work support is 

user assembled. Your 

saw base is designed 

to accept two work 

supports, one on each 

side.

LOCKNUTS

END PLATE

Adjustable Length 

Stop: DW7051

Requires the use of one 

Extension Work Support 

(DW7080). It is used to 

make repetitive cuts of 

the same length from 0 

to 42" (107 cm).

BRACKET

KNOBS 

Clamp: DW7082 
(similar model 
included)

Used for firmly clamping 

workpiece to the saw 

table for precision cutting.

Dust Bag: 
DW7053 
(included with 
some models)

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 EITHER 1" (25.4 mm) OR 

5/8" (15.88 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°.

Summary of Contents for DHS790

Page 1: ... LÉASE ESTE INSTRUCTIVO ANTES DE USAR EL PRODUCTO Questions Visit us at www dewalt com Des questions Rendez nous visite à www dewalt com Tiene preguntas Visítenos en www dewalt com Before returning this product call 1 800 4 DeWALT IF YOU SHOULD EXPERIENCE A PROBLEM WITH YOUR DeWALT PURCHASE CALL 1 800 4 DeWALT IN MOST CASES A DeWALT REPRESENTATIVE CAN RESOLVE YOUR PROBLEM OVER THE PHONE IF YOU HAV...

Page 2: ......

Page 3: ...rious personal injury b Use personal protective equipment Always wear eye protection Protective equipment such as dust mask non skid safety shoes hardhat or hearing protection used for appropriate conditions will reduce personal injuries c Prevent unintentional starting Ensure the switch is in the off position before connecting to power source and or battery pack picking up or carrying the tool Ca...

Page 4: ...injury c When battery pack is not in use keep it away from other metal objects like paper clips coins keys nails screws or other small metal objects that can make a connection from one terminal to another Shorting the battery terminals together may cause burns or a fire d Under abusive conditions liquid may be ejected from the battery avoid contact If contact accidentally occurs flush with water I...

Page 5: ...ng protection ONLY OPERATE WITH DeWALT FLEXVOLT BATTERIES OR WITH THE DeWALT CORDED POWER SUPPLY Only connect the power supply cord to the designated voltage listed Overheating damage to the tool and personal injury may occur DO NOT WEDGE ANYTHING AGAINST THE FAN to hold the motor shaft Damage to tool and possible personal injury may occur NEVER CUT FERROUS METALS those with any iron or steel cont...

Page 6: ...is suitable for use with both grounded and double insulated 120V AC tools When the power supply is utilized with a grounded tool the tool inlet will be equipped with a ground prong that allows the ground path from the tool to connect to the power supply When the power supply is used with this double insulated miter saw no ground connection is made from the tool to the power supply as no ground con...

Page 7: ...tt hour ratings see example Depending on how the battery is shipped the appropriate Watt hour rating must be used to determine the applicable shipping requirements If utilizing the shipping cap the pack will be considered 3 batteries at the Watt hour rating indicated for Shipping If shipping without the cap or in a tool the pack will be considered one battery at the Watt hour rating indicated next...

Page 8: ...es other than charging DeWALT rechargeable batteries Any other uses may result in risk of fire electric shock or electrocution Do not expose the charger to rain or snow Pull by the plug rather than the cord when disconnecting the charger This will reduce the risk of damage to the electric plug and cord Make sure that the cord is located so that it will not be stepped on tripped over or otherwise s...

Page 9: ...4 F 40 C This is important and will prevent serious damage to the battery pack 2 The charger and battery pack may become warm to the touch while charging This is a normal condition and does not indicate a problem To facilitate the cooling of the battery pack after use avoid placing the charger or battery pack in a warm environment such as in a metal shed or an uninsulated trailer 3 If the battery ...

Page 10: ... 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 and pull out the lock down pin Q Fig 4 Gently release the downward pressure and hold the arm allowing it to rise to its full height Use the lock down pin when carrying the saw from one place to another Always ...

Page 11: ...on the operating handle A 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 ...

Page 12: ...before continuing use If the condition persists there may be a fault condition Have the tool serviced by an authorized DeWALT service center Always be sure the blade has stopped before raising the arm and removing the blade from the kerf plate The brake is not a substitute for guards Ensure your own safety by giving the saw your complete attention GUARD ACTUATION AND VISIBILITY CAUTION Pinch Hazar...

Page 13: ...iginal position and firmly tighten the guard bracket screw AP 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 ADJUSTMENTS WARNING To reduce the risk of serious pe...

Page 14: ...e saw is fully to the right if the bevel pointer P does not indicate exactly 22 5 turn the crown adjustment screw AF contacting the pawl with a 7 16 wrench until the bevel pointer indicates exactly 22 5 FENCE ADJUSTMENT FIG 7 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...

Page 15: ... button BE and firmly pull the corded power supply out of the tool Firmly press the end of the dust cover BG into the tool s corded power supply receptacle BF FIG 17 BH BC FIG 18 BD Trigger Switch Fig 19 BI B FIG 19 C To turn the saw on push the lock off button C to the left then depress the trigger switch B The saw will run while the switch is depressed Allow the blade to spin up to full operatin...

Page 16: ...ar shape etc or your hand would be less than 6 152 mm from the blade a clamp or other fixture must be used Use the material clamp provided with your saw To purchase the material clamp contact your local retailer or DeWALT service center Other aids such as spring clamps bar clamps or C clamps may be appropriate for certain sizes and shapes of material Use care in selecting and placing these clamps ...

Page 17: ...the miter angle and recut This will take some practice but it is a commonly used technique BEVEL CUTS A bevel cut is a crosscut made with the saw blade leaning at an angle to the wood In order to set the bevel loosen the bevel lock V Fig 4 and move the saw to the left or right as desired It is necessary to move the fence to allow clearance Once the desired bevel angle has been set tighten the beve...

Page 18: ...g against the fence and with the bottom of the molding against the table INSIDE CORNER OUTSIDE CORNER Left side Miter left 45 Save left side of cut Miter right 45 Save left side of cut Right side Miter right 45 Save right side of cut Miter left 45 Save right side of cut Material up to 6 75 171 mm can be cut as described above Cutting Crown Molding Your miter saw is well suited to the task of cutti...

Page 19: ...iter left at 45 Save right side of cut Right side Miter left at 45 Save left side of cut Miter right at 45 Save left side of cut Special Cuts NEVER MAKE ANY CUT UNLESS THE MATERIAL IS SECURED ON THE TABLE AND AGAINST THE FENCE ALUMINUM CUTTING FIG 28 29 ALWAYS USE THE APPROPRIATE SAW BLADE MADE ESPECIALLY FOR CUTTING ALUMINUM These are available at your local DeWALT retailer or DeWALT service cent...

Page 20: ...sired miter angle CAUTION Continued use of a platform with several kerfs may cause loss of material control and possible injury MAINTENANCE 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 in...

Page 21: ...essories 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...

Page 22: ...eWALT will repair without charge any defects due to faulty materials or workmanship for three years from the date of purchase This warranty does not cover part failure due to normal wear or tool abuse For further detail of warranty coverage and warranty repair information visit www dewalt com or call 1 800 4 DeWALT 1 800 433 9258 This warranty does not apply to accessories or damage caused where r...

Page 23: ...or household oven cleaner 4 Incorrect blade for work being done 4 Change the blade type Refer to Saw Blades under Accessories Blade does not come up to speed 1 Extension cord too light or too long 1 Replace with adequate size cord Refer to Use Proper Extension Cord under Important Safety Instructions 2 Low house current 2 Contact your electric company Machine vibrates excessively 1 Saw not mounted...

Page 24: ...TER CUT POSITION WOOD WITH BROAD FLAT SIDE ON THE TABLE AND THE NARROW EDGE AGAINST THE FENCE SET THIS MITER ANGLE ON SAW ANGLE OF SIDE OF BOX ANGLE A S Q U A R E B O X 6 S I D E D B O X SET THIS BEVEL ANGLE ON SAW 8 S I D E D B O X ...

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