DeWalt DCS781 User manual

DCS781
Final Page Size: 172x 240mm

B
English (original instructions) 7
Copyright DeWALT

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7
ENGLISH
English (original instructions)
MITRE SAW
DCS781
You have chosen a DeWALT tool. Years of experience, thorough product development and
innovation make DeWALT one of the most reliable partners for professional power toolusers.
Technical Data
DCS781
Voltage VDC 54
Type 20
Battery type Li‑Ion
Blade diameter mm 305
Blade bore mm 30
Blade body thickness mm 1.6
Max. kerf thickness mm 2.2
Max. blade speed min‑1 3800
Max. cross‑cut capacity 90° mm 310
Max. mitre capacity 45° mm 219
Max. depth of cut 90° mm 112
Max. depth of bevel cross‑cut 45° mm 50
Mitre (max. positions) left 50°
right 60°
Bevel (max. positions) left 49°
right 49°
0 ° mitre
Resulting width at baseboard max. height 165mm mm 19
Resulting width at max height 112 mm mm 278
Resulting height at max width 310 mm mm 90
45 ° mitre left
Resulting width at max. height 112mm mm 197
Resulting height at max. width 219mm mm 90
45 ° mitre right
Resulting width at max. height 112mm mm 197
Resulting height at max. width 219mm mm 90
45 ° bevel left
Resulting width at max. height 60 mm mm 278
Resulting height at max. width 310 mm mm 54
45 ° bevel right
Resulting width at max. height 50mm mm 296
Resulting height at max. width 310 mm mm 40
Automatic blade brake time s<5
Wireless tool control transmitter
Frequency band
Max. power (EIRP)
MHz
mW
433
0.03
Weight (without battery pack) kg 23.2
Noise values and/or vibration values (triax vector sum) according to EN62841‑3‑9:
LPA (emission sound pressure level) dB(A) 94.4
LWA (sound power level) dB(A) 106.4
K (uncertainty for the given sound level) dB(A) 2.5
The vibration and/or noise emission level given in this information sheet has been measured
in accordance with a standardised test given in EN62841 and may be used to compare one
tool with another. It may be used for a preliminary assessment ofexposure.
WARNING: The declared vibration and/or noise emission level represents the main
applications of the tool. However if the tool is used for different applications, with different
accessories or poorly maintained, the vibration and/or noise emission may differ. This
may significantly increase the exposure level over the total workingperiod.
An estimation of the level of exposure to vibration and/or noise should also take
into account the times when the tool is switched off or when it is running but not
actually doing the job. This may significantly reduce the exposure level over the total
workingperiod.
Identify additional safety measures to protect the operator from the effects of vibration
and/or noise such as: maintain the tool and the accessories, keep the hands warm
(relevant for vibration), organisation of workpatterns.
EC‑Declaration of Conformity
Machinery Directive and Radio Equipment Directive
Mitre Saw
DCS781
DeWALT declares that these products described under Technical Data are in compliance with:
2006/42/EC, EN62841‑1:2015 +AC:2015; EN62841‑3‑9:2015 +AC:2016 +A11:2017.
These products also comply with Directive, 2014/53/EU; 2014/30/EU and 2011/65/EU. For
more information, please contact DeWALT at the following address or refer to the back of
themanual.
The undersigned is responsible for compilation of the technical file and makes this declaration
on behalf ofDeWALT.
Markus Rompel
Vice President of Engineering, PTE‑Europe
DeWALT, Richard‑Klinger‑Straße 11,
65510, Idstein, Germany
29.04.2022
DECLARATION OF CONFORMITY
THE SUPPLY OF MACHINERY (SAFETY) REGULATIONS 2008 AND
RADIO EQUIPMENT REGULATION 2017
Mitre Saw
DCS781
DeWALT declares that these products described under “technical data” are in compliance with:
The Supply of Machinery (Safety) Regulations, 2008, S.I. 2008/1597 (as amended),
EN62841‑1:2015 +AC:2015; EN62841‑3‑9:2015 +AC:2016 +A11:2017.
These products conform to the following UK Regulations
Radio Equipment Regulation 2017, S.I.2017/1206 (as amended)
Electromagnetic Compatibility Regulations, 2016, S.I.2016/1091 (asamended).
The Restriction of the Use of Certain Hazardous Substances in Electrical and Electronic
Equipment Regulations 2012, S.I. 2012/3032 (as amended).
For more information, please contact DeWALT at the following address or refer to the back of
the manual.
The undersigned is responsible for compilation of the technical file and makes this declaration
on behalf of DeWALT.
Karl Evans
Vice President Professional Power Tools EANZ GTS
DeWALT UK, 270Bath Road, Slough
SL1 4DX
England
29.04.2022
WARNING: To reduce the risk of injury, read the instructionmanual.
Definitions: Safety Guidelines
The definitions below describe the level of severity for each signal word. Please read the
manual and pay attention to thesesymbols.
DANGER: Indicates an imminently hazardous situation which, if not avoided, will result
in death or seriousinjury.
WARNING: Indicates a potentially hazardous situation which, if not avoided, could result
in death or seriousinjury.
CAUTION: Indicates a potentially hazardous situation which, if not avoided, may result
in minor or moderateinjury.
NOTICE: Indicates a practice not related to personal injury which, if not avoided, may
result in propertydamage.
Denotes risk of electricshock.
Denotes risk offire.

8
ENGLISH
Batteries Chargers/Charge Times (Minutes)**
Cat # VDC Ah Weight (kg) DCB104 DCB107 DCB112 DCB113 DCB115 DCB116 DCB117 DCB118 DCB132
DCB546 18/54 6.0/2.0 1.08 60 270 170 140 90 80 40 60 90
DCB547 18/54 9.0/3.0 1.46 75* 420 270 220 135* 110* 60 75* 135*
DCB548 18/54 12.0/4.0 1.46 120 540 350 300 180 150 80 120 180
DCB549 18/54 15.0/5.0 2.12 125 730 450 380 230 170 90 125 230
*Date code 201811475B or later
Batteries
Chargers/Charge Times (Minutes)
Cat #
DC
Weight
*Date code 201811475B or later
**Date code 201536or later
**Battery charge times matrix provided for guidance only; charge times will vary depending on temperature and condition ofbatteries.
***Battery charge times matrix provided for guidance only; charge times will vary depending on temperature and condition ofbatteries.
GENERAL POWER TOOL SAFETY WARNINGS
WARNING: Read all safety warnings, instructions, illustrations and specifications
provided with this power tool. Failure to follow all instructions listed below may result
in electric shock, fire and/or seriousinjury.
SAVE ALL WARNINGS AND INSTRUCTIONS FOR FUTUREREFERENCE.
The term “power tool” in the warnings refers to your mains‑operated (corded) power tool or
battery‑operated (cordless) powertool.
1) Work Area Safety
a ) Keep work area clean and well lit. Cluttered or dark areas inviteaccidents.
b ) Do not operate power tools in explosive atmospheres, such as in the presence of
flammable liquids, gases or dust. Power tools create sparks which may ignite the dust
orfumes.
c ) Keep children and bystanders away while operating a power tool. Distractions can
cause you to losecontrol.
2) Electrical Safety
a ) Power tool plugs must match the outlet. Never modify the plug in any way. Do
not use any adapter plugs with earthed (grounded) power tools. Unmodified plugs
and matching outlets will reduce risk of electricshock.
b ) Avoid body contact with earthed or grounded surfaces, such as pipes, radiators,
ranges and refrigerators. There is an increased risk of electric shock if your body is
earthed orgrounded.
c ) Do not expose power tools to rain or wet conditions. Water entering a power tool
will increase the risk of electricshock.
d ) Do not abuse the cord. Never use the cord for carrying, pulling or unplugging
the power tool. Keep cord away from heat, oil, sharp edges or moving parts.
Damaged or entangled cords increase the risk of electricshock.
e ) When operating a power tool outdoors, use an extension cord suitable for
outdoor use. Use of a cord suitable for outdoor use reduces the risk of electricshock.
f ) If operating a power tool in a damp location is unavoidable, use a ground
fault circuit interrupter (GFCI) protected supply. Use of a GFCI reduces the risk of
electricshock.
3) Personal Safety
a ) Stay alert, watch what you are doing and use common sense when operating a
power tool. Do not use a power tool while you are tired or under the influence of
drugs, alcohol or medication. A moment of inattention while operating power tools
may result in serious personalinjury.
b ) Use personal protective equipment. Always wear eye protection. Protective
equipment such as a dust mask, non‑skid safety shoes, hard hat, 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.
Carrying power tools with your finger on the switch or energizing power tools that have
the switch on invitesaccidents.
d ) Remove any adjusting key or wrench before turning the power tool on. A wrench
or a key left attached to a rotating part of the power tool may result in personalinjury.
e ) Do not overreach. Keep proper footing and balance at all times. This enables better
control of the power tool in unexpectedsituations.
f ) Dress properly. Do not wear loose clothing or jewelry. Keep your hair, clothing
and gloves away from moving parts. Loose clothes, jewelry or long hair can be caught
in movingparts.
g ) If devices are provided for the connection of dust extraction and collection
facilities, ensure these are connected and properly used. Use of dust collection can
reduce dust‑relatedhazards.
h ) Do not let familiarity gained from frequent use of tools allow you to become
complacent and ignore tool safety principles. A careless action can cause severe
injury within a fraction of asecond.
4) Power Tool Use and Care
a ) Do not force the power tool. Use the correct power tool for your application. The
correct power tool will do the job better and safer at the rate for which it wasdesigned.
b ) Do not use the power tool if the switch does not turn it on and off. Any power tool
that cannot be controlled with the switch is dangerous and must berepaired.
c ) Disconnect the plug from the power source and/or remove the battery pack,
if detachable, from the power tool before making any adjustments, changing
accessories, or storing power tools. Such preventive safety measures reduce the risk of
starting the power toolaccidentally.
d ) Store idle power tools out of the reach of children and do not allow persons
unfamiliar with the power tool or these instructions to operate the power tool.
Power tools are dangerous in the hands of untrainedusers.
e ) Maintain power tools and accessories. Check for misalignment or binding of
moving parts, breakage of parts and any other condition that may affect the
power tool’s operation. If damaged, have the power tool repaired before use.
Many accidents are caused by poorly maintained powertools.
f ) Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp
cutting edges are less likely to bind and are easier tocontrol.
g ) Use the power tool, accessories and tool bits etc. in accordance with these
instructions, taking into account the working conditions and the work to be
performed. Use of the power tool for operations different from those intended could
result in a hazardoussituation.
h ) Keep handles and grasping surfaces dry, clean and free from oil and grease.
Slippery handles and grasping surfaces do not allow for safe handling and control of the
tool in unexpectedsituations.
5) Battery Tool Use and Care
a ) Recharge only with the charger specified by the manufacturer. A charger that is
suitable for one type of battery pack may create a risk of fire when used with another
batterypack.
b ) Use power tools only with specifically designated battery packs. Use of any other
battery packs may create a risk of injury andfire.
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. If liquid contacts eyes,
additionally seek medical help. Liquid ejected from the battery may cause irritation
orburns.
e ) Do not use a battery pack or tool that is damaged or modified. Damaged or
modified batteries may exhibit unpredictable behavior resulting in fire, explosion or risk
ofinjury.
f ) Do not expose a battery pack or tool to fire or excessive temperature. Exposure to
fire or temperature above 130°C may causeexplosion.
g ) Follow all charging instructions and do not charge the battery pack or tool
outside the temperature range specified in the instructions. Charging improperly
or at temperatures outside the specified range may damage the battery and increase the
risk offire.
6) Service
a ) Have your power tool serviced by a qualified repair person using only identical
replacement parts. This will ensure that the safety of the power tool ismaintained.
b ) Never service damaged battery packs. Service of battery packs should only be
performed by the manufacturer or authorized serviceproviders.
Safety Instructions for Mitre Saws
a ) Mitre saws are intended to cut wood or wood‑like products, they cannot be used
with abrasive cut‑off wheels for cutting ferrous material such as bars, rods,
studs, etc. Abrasive dust causes moving parts such as the lower guard to jam. Sparks
from abrasive cutting will burn the lower guard, the kerf insert and other plasticparts.
b ) Use clamps to support the workpiece whenever possible. If supporting the
workpiece by hand, you must always keep your hand at least 100mm from either
side of the saw blade. Do not use this saw to cut pieces that are too small to be
securely clamped or held by hand. If your hand is placed too close to the saw blade,
there is an increased risk of injury from bladecontact.
c ) The workpiece must be stationary and clamped or held against both the fence
and the table. Do not feed the workpiece into the blade or cut “freehand” in any
way. Unrestrained or moving workpieces could be thrown at high speeds, causinginjury.
d ) Push the saw through the workpiece. Do not pull the saw through the workpiece. To make
a cut, raise the saw head and pull it out over the workpiece without cutting, start the
motor, press the saw head down and push the saw through the workpiece. Cutting on the
pull stroke is likely to cause the saw blade to climb on top of the workpiece and violently
throw the blade assembly towards theoperator.
e ) Never cross your hand over the intended line of cutting either in front or behind
the saw blade. Supporting the workpiece “cross handed” i.e. holding the workpiece to
the right of the saw blade with your left hand or vice versa is verydangerous.
f ) Do not reach behind the fence with either hand closer than 100mm from either
side of the saw blade, to remove wood scraps, or for any other reason while the
blade is spinning. The proximity of the spinning saw blade to your hand may not be
obvious and you may be seriouslyinjured.
g ) Inspect your workpiece before cutting. If the workpiece is bowed or warped,
clamp it with the outside bowed face toward the fence. Always make certain that
there is no gap between the workpiece, fence and table along the line of the cut.

9
ENGLISH
Bent or warped workpieces can twist or shift and may cause binding on the spinning saw
blade while cutting. There should be no nails or foreign objects in theworkpiece.
h ) Do not use the saw until the table is clear of all tools, wood scraps, etc., except
for the workpiece. Small debris or loose pieces of wood or other objects that contact the
revolving blade can be thrown with highspeed.
i ) Cut only one workpiece at a time. Stacked multiple workpieces cannot be adequately
clamped or braced and may bind on the blade or shift duringcutting.
j ) Ensure the mitre saw is mounted or placed on a level, firm work surface before
use. A level and firm work surface reduces the risk of the mitre saw becomingunstable.
k ) Plan your work. Every time you change the bevel or mitre angle setting, make
sure the fence will not interfere with the blade or the guarding system. Without
turning the tool “ON” and with no workpiece on the table, move the saw blade through
a complete simulated cut to assure there will be no interference or danger of cutting
thefence.
l ) Provide adequate support such as table extensions, saw horses, etc. for a
workpiece that is wider or longer than the table top. Workpieces longer or wider
than the mitre saw table can tip if not securely supported. If the cut‑off piece or workpiece
tips, it can lift the lower guard or be thrown by the spinningblade.
m ) Do not use another person as a substitute for a table extension or as additional
support. Unstable support for the workpiece can cause the blade to bind or the
workpiece to shift during the cutting operation pulling you and the helper into the
spinningblade.
n ) The cut‑off piece must not be jammed or pressed by any means against the
spinning saw blade. If confined, i.e. using length stops, the cut‑off piece could get
wedged against the blade and thrownviolently.
o ) Always use a clamp or a fixture designed to properly support round material
such as rods or tubing. Rods have a tendency to roll while being cut, causing the blade
to “bite” and pull the work with your hand into theblade.
p ) Let the blade reach full speed before contacting the workpiece. This will reduce the
risk of the workpiece beingthrown.
q ) If the workpiece or blade becomes jammed, turn the mitre saw off. Wait for
all moving parts to stop and disconnect the plug from the power source and/
or remove the battery pack. Then work to free the jammed material. Continued
sawing with a jammed workpiece could cause loss of control or damage to the mitresaw.
r ) After finishing the cut, release the switch, hold the saw head down and wait for
the blade to stop before removing the cut‑off piece. Reaching with your hand near
the coasting blade isdangerous.
s ) Hold the handle firmly when making an incomplete cut or when releasing the
switch before the saw head is completely in the down position. The braking action
of the saw may cause the saw head to be suddenly pulled downward, causing a risk
ofinjury.
Additional Safety Rules for Mitre Saws
WARNING: Do not allow familiarity (gained from frequent use of your saw) to replace
safety rules. Always remember that a careless fraction of a second is sufficient to inflict
severeinjury.
WARNING: Never modify the power tool or any part of it. Damage or personal injury
couldresult.
WARNING: Do not insert battery into unit until complete instructions are read
andunderstood
• DO NOT OPERATE THIS MACHINE until it is completely assembled and installed according
to the instructions. A machine incorrectly assembled can cause seriousinjury.
• OBTAIN ADVICE from your supervisor, instructor, or another qualified person if you are not
thoroughly familiar with the operation of this machine. Knowledge issafety..
• MAKE CERTAIN the blade rotates in the correct direction. The teeth on the blade should point
in the direction of rotation as marked on thesaw.
• TIGHTEN ALL CLAMP HANDLES, knobs and levers prior to operation. Loose clamps can
cause parts or the workpiece to be thrown at highspeeds.
• AVOID UNCONTROLLED RELEASE OF THE SAW HEAD FROM FULLY DOWN POSITION.
Otherwise, there is a risk that the machine will tipover.
• BE SURE all blade and blade clamps are clean, recessed sides of blade clamps are against
blade and arbor screw is tightened securely. Loose or improper blade clamping may result in
damage to the saw and possible personalinjury.
• DO NOT OPERATE ON ANYTHING OTHER THAN THE DESIGNATED VOLTAGE for the
saw. 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 or masonry. Either of these can cause the carbide tips to fly
off the blade at high speeds causing seriousinjury.
• NEVER HAVE ANY PART OF YOUR BODY IN LINE WITH THE PATH OF THE SAW BLADE.
Personal injury willoccur.
• NEVER APPLY BLADE LUBRICANT TO A RUNNING BLADE. Applying lubricant could cause
your hand to move into the blade resulting in seriousinjury.
• DO NOT place either hand in the blade area when the saw is connected to the power source.
Inadvertent blade activation may result in seriousinjury.
• NEVER REACH AROUND OR BEHIND THE SAW BLADE. A blade can cause seriousinjury.
• DO NOT REACH UNDERNEATH THE SAW unless it is unplugged and turned off. Contact
with saw blade may cause personalinjury.
• SECURE THE MACHINE TO A STABLE SUPPORTING SURFACE. Vibration can possibly
cause the machine to slide, walk, or tip over, causing seriousinjury.
• USE ONLY CROSSCUT SAW BLADES recommended for mitre saws. For best results, do not
use carbide tipped blades with hook angles in excess of 7degrees. Do not use blades with
deep gullets. These can deflect and contact the guard, and can cause damage to the machine
and/or seriousinjury.
• USE ONLY BLADES OF THE CORRECT SIZE AND TYPE specified for this tool to prevent
damage to the machine and/or seriousinjury (complying with EN847:2017).
• MAXIMUM SPEED OF THE SAW BLADE shall always be greater than or at least equal to the
speed marked on the rating plate of thetool.
• THE SAW BLADE DIAMETER must be in accordance with the markings on rating plate of
thetool.
• INSPECT BLADE FOR CRACKS or other damage prior to operation. A cracked or damaged
blade can come apart and pieces can be thrown at high speeds, causing serious injury.
Replace cracked or damaged bladesimmediately.
• CLEAN THE BLADE AND BLADE CLAMPS prior to operation. Cleaning the blade and blade
clamps allows you to check for any damage to the blade or blade clamps. A cracked or
damaged blade or blade clamp can come apart and pieces can be thrown at high speeds,
causing seriousinjury.
• DO NOT USE WARPED BLADES. Check to see if the blade runs true and is free from vibration.
A vibrating blade can cause damage to the machine and/or seriousinjury.
• 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.
• KEEP GUARD IN PLACE and in workingorder.
• ALWAYS USE THE KERF PLATE AND REPLACE THIS PLATE WHEN DAMAGED. Small chip
accumulation under the saw may interfere with the saw blade or may cause instability of
workpiece whencutting.
• USE ONLY BLADE CLAMPS SPECIFIED FOR THIS TOOL to prevent damage to the machine
and/or seriousinjury.
• CLEAN THE MOTOR AIR SLOTS of chips and sawdust. Clogged motor air slots can cause the
machine to overheat, damaging the machine and possibly causing a short which could cause
seriousinjury.
• NEVER LOCK THE SWITCH IN THE “ON” POSITION. Severe personal injury mayresult.
• NEVER STAND ON TOOL. Serious injury could occur if the tool is tipped or if the cutting tool
is unintentionallycontacted.
• NEVER LEAVE TOOL RUNNING UNATTENDED. TURN POWER OFF. Don't leave tool until it
comes to a completestop.
• MAKE SURE to use the correct saw blade for the material to becut.
• DO NOT USE ABRASIVE WHEELS OR BLADES. The excessive heat and abrasive particles
generated by them may damage the saw and cause personalinjury.
WARNING: Cutting plastics, sap coated wood, and other materials may cause melted
material to accumulate on the blade tips and the body of the saw blade, increasing the
risk of blade overheating and binding whilecutting.
WARNING: ALWAYS use safety glasses. Everyday eyeglasses are NOT safety glasses.
Also use face or dust mask if cutting operation is dusty. ALWAYS WEAR CERTIFIED
SAFETYEQUIPMENT:
WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other
construction activities contains chemicals known to the State of California to cause
cancer, birth defects or other reproductive harm. Some examples of these chemicalsare:
• lead from lead‑based paints,
• crystalline silica from bricks and cement and other masonry products, and
• arsenic and chromium from chemically‑treatedlumber.
Your risk from these exposures varies, depending on how often you do this type of work. To reduce
your exposure to these chemicals: work in a well ventilated area, and work with approved safety
equipment, such as those dust masks that are specially designed to filter out microscopicparticles.
• Avoid prolonged contact with dust from power sanding, sawing, grinding, drilling,
and other construction activities. Wear protective clothing and wash exposed areas
with soap and water. Allowing dust to get into your mouth, eyes, or lay on the skin may
promote absorption of harmfulchemicals.
WARNING: Use of this tool can generate and/or disperse dust, which may cause serious
and permanent respiratory or other injury. Always use approved respiratory protection
appropriate for the dust exposure. Direct particles away from face andbody.
WARNING: Always wear proper personal hearing protection during use. Under
some conditions and duration of use, noise from this product may contribute to
hearingloss.
• Be aware of the following factors influencing exposure to noise:
• Use saw blades designed to reduce the emitted noise,
• Use only well sharpened saw blades, and
• Use specifically designed noise‑reduction sawblades.
• Air vents often cover moving parts and should be avoided. Loose clothes, jewelry or
long hair can be caught in movingparts.
Residual Risks
The following risks are inherent to the use of saws:
• Injuries caused by touching the rotatingparts.
In spite of the application of the relevant safety regulations and the implementation of safety
devices, certain residual risks cannot be avoided. These are:
• Impairment ofhearing.
• Risk of accidents caused by the uncovered parts of the rotating sawblade.

10
ENGLISH
• Risk of injury when changing theblade.
• Risk of squeezing fingers when opening theguards.
• Health hazards caused by breathing dust developed when sawing wood, especially oak,
beech andMDF.
The following factors increase the risk of breathing problems:
• No dust extractor connected when sawingwood.
• Insufficient dust extraction caused by uncleaned exhaustfilters.
SAVE THESE INSTRUCTIONS
Chargers
DeWALT chargers require no adjustment and are designed to be as easy as possible tooperate.
Electrical Safety
The electric motor has been designed for one voltage only. Always check that the battery pack
voltage corresponds to the voltage on the rating plate. Also make sure that the voltage of your
charger corresponds to that of yourmains.
iYour DeWALTcharger is double insulated in accordance with EN60335; therefore no
earth wire isrequired.
If the supply cord is damaged, it must be replaced only by DeWALT or an authorised
serviceorganisation.
Mains Plug Replacement
(U.K.& Ireland Only)
If a new mains plug needs to be fitted:
• Safely dispose of the oldplug.
• Connect the brown lead to the live terminal in theplug.
• Connect the blue lead to the neutralterminal.
WARNING: No connection is to be made to the earthterminal.
Follow the fitting instructions supplied with good quality plugs. Recommended fuse: 3A.
Using an Extension Cable
An extension cord should not be used unless absolutely necessary. Use an approved extension
cable suitable for the power input of your charger (see Technical Data). The minimum
conductor size is 1mm
2
; the maximum length is30m.
When using a cable reel, always unwind the cablecompletely.
Important Safety Instructions for All BatteryChargers
SAVE THESE INSTRUCTIONS: This manual contains important safety and operating
instructions for compatible battery chargers (refer to TechnicalData).
• Before using charger, read all instructions and cautionary markings on charger, battery pack, and
product using batterypack.
WARNING: Shock hazard. Do not allow any liquid to get inside charger. Electric shock
mayresult.
WARNING: We recommend the use of a residual current device with a residual current
rating of 30mA orless.
CAUTION: Burn hazard. To reduce the risk of injury, charge only DeWALT rechargeable
batteries. Other types of batteries may burst causing personal injury anddamage.
CAUTION: Children should be supervised to ensure that they do not play with
theappliance.
NOTICE: Under certain conditions, with the charger plugged into the power supply, the
exposed charging contacts inside the charger can be shorted by foreign material. Foreign
materials of a conductive nature such as, but not limited to, steel wool, aluminum foil
or any buildup of metallic particles should be kept away from charger cavities. Always
unplug the charger from the power supply when there is no battery pack in the cavity.
Unplug charger before attempting toclean.
• DO NOT attempt to charge the battery pack with any chargers other than the ones in
this manual. The charger and battery pack are specifically designed to worktogether.
• These chargers are not intended for any uses other than charging DeWALT
rechargeable batteries. Any other uses may result in risk of fire, electric shock
orelectrocution.
• Do not expose charger to rain orsnow.
• Pull by plug rather than cord when disconnecting charger. This will reduce risk ofdamage
to electric plug andcord.
• Make sure that cord is located so that it will not be stepped on, tripped over, or
otherwise subjected to damage orstress.
• Do not use an extension cord unless it is absolutely necessary. Use of improper
extension cord could result in risk of fire,electric shock, orelectrocution.
• Do not place any object on top of charger or place the charger on a soft surface
that might block the ventilation slots and result in excessive internal heat. Place the
charger in a position away from any heat source. The charger is ventilated through slots in the
top and the bottom of thehousing.
• Do not operate charger with damaged cord or plug—have them replacedimmediately.
• Do not operate charger if it has received a sharp blow, been dropped, or otherwise
damaged in any way. Take it to an authorised servicecentre.
• Do not disassemble charger; take it to an authorised service centre when service or repair
is required. Incorrect reassembly may result in a risk of electric shock, electrocution orfire.
• In case of damaged power supply cord, the supply cord must be replaced immediately by the
manufacturer, its service agent or similar qualified person to prevent anyhazard.
• Disconnect the charger from the outlet before attempting any cleaning. This will
reduce the risk of electric shock. Removing the battery pack will not reduce thisrisk.
• NEVER attempt to connect two chargerstogether.
• The charger is designed to operate on standard 230V household electrical power. Do
not attempt to use it on any other voltage. This does not apply to the vehicularcharger.
Charging a Battery (Fig.B)
1. Plug the charger into an appropriate outlet before inserting batterypack.
2. Insert the battery pack 3 into the charger, making sure the battery pack is fully seated
in the charger. The red (charging) light will blink repeatedly indicating that the charging
process hasstarted.
3. The completion of charge will be indicated by the red light remaining ON continuously.
The battery pack is fully charged and may be used at this time or left in the charger. To
remove the battery pack from the charger, push the battery release button 4 on the
batterypack.
NOTE: To ensure maximum performance and life of lithium‑ion battery packs, charge the
battery pack fully before firstuse.
Charger Operation
Refer to the indicators below for the charge status of the batterypack.
Charge Indicators
FCharging I
GFully Charged J
HHot/Cold Pack Delay* K
*The red light will continue to blink, but a yellow indicator light will be illuminated during this
operation. Once the battery pack has reached an appropriate temperature, the yellow light
will turn off and the charger will resume the chargingprocedure.
The compatible charger(s) will not charge a faulty battery pack. The charger will indicate faulty
battery by refusing tolight.
NOTE: This could also mean a problem with acharger.
If the charger indicates a problem, take the charger and battery pack to be tested at an
authorised servicecentre.
Hot/Cold Pack Delay
When the charger detects a battery pack that is too hot or too cold, it automatically starts a
Hot/Cold Pack Delay, suspending charging until the battery pack has reached an appropriate
temperature. The charger then automatically switches to the pack charging mode. This feature
ensures maximum battery packlife.
A cold battery pack will charge at a slower rate than a warm battery pack. The battery pack
will charge at that slower rate throughout the entire charging cycle and will not return to
maximum charge rate even if the battery packwarms.
The DCB118 charger is equipped with an internal fan designed to cool the battery pack. The fan
will turn on automatically when the battery pack needs to be cooled. Never operate the charger
if the fan does not operate properly or if ventilation slots are blocked. Do not permit foreign
objects to enter the interior of thecharger.
Electronic Protection System
XR Li‑Ion tools are designed with an Electronic Protection System that will protect the battery
pack against overloading, overheating or deepdischarge.
The tool will automatically turn off if the Electronic Protection System engages. If this occurs,
place the lithium‑ion battery pack on the charger until it is fullycharged.
Wall Mounting
These chargers are designed to be wall mountable or to sit upright on a table or work surface.
If wall mounting, locate the charger within reach of an electrical outlet, and away from a
corner or other obstructions which may impede air flow. Use the back of the charger as a
template for the location of the mounting screws on the wall. Mount the charger securely
using drywall screws (purchased separately) at least 25.4mm long with a screw head diameter
of 7–9mm, screwed into wood to an optimal depth leaving approximately 5.5mm of the
screw exposed. Align the slots on the back of the charger with the exposed screws and fully
engage them in theslots.
Charger Cleaning Instructions
WARNING: Shock hazard. Disconnect the charger from the AC outlet before
cleaning. Dirt and grease may be removed from the exterior of the charger using a cloth
or soft non‑metallic brush. Do not use water or any cleaning solutions. Never let any liquid
get inside the tool; never immerse any part of the tool into aliquid.
Battery Packs
Important Safety Instructions for All BatteryPacks
When ordering replacement battery packs, be sure to include catalogue number andvoltage.
The battery pack is not fully charged out of the carton. Before using the battery pack and
charger, read the safety instructions below. Then follow charging proceduresoutlined.
READ ALL INSTRUCTIONS
• Do not charge or use battery in explosive atmospheres, such as in the presence of
flammable liquids, gases or dust. Inserting or removing the battery from the charger may
ignite the dust orfumes.

11
ENGLISH
• Never force battery pack into charger. Do not modify battery pack in any way to
fit into a non‑compatible charger as battery pack may rupture causing serious
personalinjury.
• Charge the battery packs only in DeWALTchargers.
• DO NOT splash or immerse in water or otherliquids.
• Do not store or use the tool and battery pack in locations where the temperature
may fall below 4˚C (39.2˚F) (such as outside sheds or metal buildings in winter), or
reach or exceed 40˚C (104˚F) (such as outside sheds or metal buildings insummer).
• Do not incinerate the battery pack even if it is severely damaged or is completely
worn out. The battery pack can explode in a fire. Toxic fumes and materials are created when
lithium‑ion battery packs areburned.
• If battery contents come into contact with the skin, immediately wash area with
mild soap and water. If battery liquid gets into the eye, rinse water over the open eye for
15minutes or until irritation ceases. If medical attention is needed, the battery electrolyte is
composed of a mixture of liquid organic carbonates and lithiumsalts.
• Contents of opened battery cells may cause respiratory irritation. Provide fresh air. If
symptoms persists, seek medicalattention.
WARNING: Burn hazard. Battery liquid may be flammable if exposed to spark orflame.
WARNING: Never attempt to open the battery pack for any reason. If battery pack case
is cracked or damaged, do not insert into charger. Do not crush, drop or damage battery
pack. Do not use a battery pack or charger that has received a sharp blow, been dropped,
run over or damaged in any way (i.e., pierced with a nail, hit with a hammer, stepped on).
Electric shock or electrocution may result. Damaged battery packs should be returned to
service centre forrecycling.
WARNING: Fire hazard. Do not store or carry the battery pack so that metal
objects can contact exposed battery terminals. For example, do not place the battery
pack in aprons, pockets, tool boxes, product kit boxes, drawers, etc., with loose nails,
screws, keys,etc.
CAUTION: When not in use, place tool on its side on a stable surface where it will
not cause a tripping or falling hazard. Some tools with large battery packs will stand
upright on the battery pack but may be easily knockedover.
Transportation
WARNING: Fire hazard. Transporting batteries can possibly cause fire if the battery
terminals inadvertently come in contact with conductive materials. When transporting
batteries, make sure that the battery terminals are protected and well insulated from
materials that could contact them and cause a short circuit. NOTE: Lithium‑ion batteries
should not be put in checkedbaggage.
DeWALT batteries comply with all applicable shipping regulations as prescribed by industry
and legal standards which include UN Recommendations on the Transport of Dangerous
Goods; International Air Transport Association (IATA) Dangerous Goods Regulations,
International Maritime Dangerous Goods (IMDG) Regulations, and the European Agreement
Concerning The International Carriage of Dangerous Goods by Road (ADR). Lithium‑ion cells
and batteries have been tested to section 38.3of the UN Recommendations on the Transport
of Dangerous Goods Manual of Tests andCriteria.
In most instances, shipping a DeWALT battery pack will be excepted from being classified as a
fully regulated Class 9Hazardous Material. In general, only shipments containing a lithium‑ion
battery with an energy rating greater than 100Watt Hours (Wh) will require being shipped
as fully regulated Class 9. All lithium‑ion batteries have the Watt Hour rating marked on the
pack. Furthermore, due to regulation complexities, DeWALT does not recommend air shipping
lithium‑ion battery packs alone regardless of Watt Hour rating. Shipments of tools with
batteries (combo kits) can be air shipped as excepted if the Watt Hour rating of the battery
pack is no greater than 100Wh.
Regardless of whether a shipment is considered excepted or fully regulated, it is the
shipper's responsibility to consult the latest regulations for packaging, labeling/marking and
documentationrequirements.
The information provided in this section of the manual is provided in good faith and believed
to be accurate at the time the document was created. However, no warranty, expressed or
implied, is given. It is the buyer’s responsibility to ensure that its activities comply with the
applicableregulations.
Transporting the FLEXVOLTTM Battery
The DeWALT FLEXVOLTTM battery has two modes: Use andTransport.
Use Mode: When the FLEXVOLTTM battery stands alone or is in a DeWALT 18V product, it
will operate as an 18V battery. When the FLEXVOLTTM battery is in a 54V or a 108V (two 54V
batteries) product, it will operate as a 54Vbattery.
Transport Mode: When the cap is attached to the FLEXVOLTTM battery, the battery is in
Transport mode. Keep the cap forshipping.
When in Transport mode, strings of cells are electrically
disconnected within the pack resulting in 3batteries with a
lower Watt hour (Wh) rating as compared to 1battery with a
higher Watt hour rating. This increased quantity of 3batteries
with the lower Watt hour rating can exempt the pack from certain shipping regulations that
are imposed upon the higher Watt hour batteries.
For example, the Transport Wh rating might indicate
3x36Wh, meaning 3batteries of 36Wh each. The Use
Wh rating might indicate 108Wh (1batteryimplied).
Example of Use and Transport Label Marking
Storage Recommendations
1. The best storage place is one that is cool and dry away from direct sunlight and excess
heat or cold. For optimum battery performance and life, store battery packs at room
temperature when not inuse.
2. For long storage, it is recommended to store a fully charged battery pack in a cool, dry
place out of the charger for optimalresults.
Labels on Charger and Battery Pack
In addition to the pictographs used in this manual, the labels on the charger and the battery
pack may show the followingpictographs:
LRead instruction manual beforeuse.
p See Technical Data for chargingtime.
q Do not probe with conductiveobjects.
r Do not charge damaged batterypacks.
s Do not expose towater.
t Have defective cords replacedimmediately
u Charge only between 4˚C and 40˚C.
v Only for indooruse.
x Discard the battery pack with due care for theenvironment.
y Charge battery packs only with designated DeWALT chargers. Charging battery packs
other than the designated DeWALT batteries with a DeWALT charger may make them
burst or lead to other dangeroussituations.
z Do not incinerate the batterypack.
B USE (without transport cap). Example: Wh rating indicates 108Wh (1battery with
108Wh).
A TRANSPORT (with built‑in transport cap). Example: Wh rating indicates 3x 36Wh (3batteries of 36Wh).
Battery Type
The DCS781 operates on a 54volt batterypack.
These battery packs may be used: DCB546, DCB547, DCB548. Refer to Technical Data for
moreinformation.
Package Contents
The packagecontains:
1 DCS781 mitre saw
1 Stabilizer bar
1 DeWALT 305 mm diameter saw blade
2 Base extensions
1 Material clamp
1 Charger (Kit only)
1 Battery (Kit only)
In bag:
1 Dust bag
1 Blade wrench
1 Instruction manual
• Check for damage to the tool, parts or accessories which may have occurred duringtransport.
• Take the time to thoroughly read and understand this manual prior tooperation.
Markings on Tool
The following pictograms are shown on the tool:
Read instruction manual beforeuse.
Wear earprotection.
Wear eyeprotection.

12
ENGLISH
Keep hands away fromblade.
Keep hands 100mm from either side of sawblade.
Do not stare directly into the lightsource.
Carryingpoint.
Date Code Position (Fig.C)
The Date Code64, which also includes the year of manufacture, is printed into thehousing.
2022XX XX
Year of Manufacture
Description (Fig. A)
WARNING: Never modify the power tool or any part of it. Damage or personal injury
couldresult.
1 Trigger switch
2 Operating handle
3 Battery
4 Battery release button
5 Mounting holes
6 Lower guard
7 Mitre lock handle
8 Mitre detent latch
9 Mitre scale
10 Mitre scale screws
11 Hand indentations
12 Fence
13 Bevel lock knob
14 Stabalizer
15 Lifting handle
16 Fence adjustment knob
17 Dust port
18 Table
19 Head lock knob
20 Base
21 XPS On switch
22 Wing nut
23 Vertical material clamp
24 Rails
25 Depth stop
26 Kerf plate
27 Mitre pointer screw
28 0° bevel stop
29 Depth adjustment screw
30 Rail lock knob
31 Mitre scale pointer
32 Extension
Intended Use
Your DeWALT cordless compact mitre saw has been designed for professional cutting wood,
wood products and plastics. When using the appropriate saw blades, sawing aluminum is
also possible. It performs the sawing operations of cross‑cutting, bevelling and mitring easily,
accurately andsafely.
This unit is designed for use with a nominal blade diameter 305mm carbide tipblade.
DO NOT use under wet conditions or in presence of flammable liquids orgases.
These mitre saws are professional powertools.
DO NOT let children come into contact with the tool. Supervision is required when
inexperienced operators use thistool.
WARNING! Do not use the machine for purposes other thanintended.
• Young children and the infirm. This appliance is not intended for use by young children
or infirm persons without supervision.
• This product is not intended for use by persons (including children) suffering from
diminished physical, sensory or mental abilities; lack of experience, knowledge or skills
unless they are supervised by a person responsible for their safety. Children should never
be left alone with thisproduct.
Familiarization (Fig. A, D)
Your mitre 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.
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 mitre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 mitre 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.
Mitre Control (Fig. A)
The mitre lock lever and mitre detent latch allow you to mitre your saw to 60° right and
50° left. To mitre the saw, lift the mitre lock lever7, squeeze the mitre detent latch8 and
move the mitre arm to the angle desired on the mitre scale9 as shown at the mitre scale
pointer31. Push down on the mitre lock lever to lock the mitre arm inplace.
ASSEMBLY AND ADJUSTMENTS
WARNING: To reduce the risk of serious personal injury, turn machine off and
disconnect battery pack before making any adjustments or removing/installing
attachments or accessories. An accidental start‑up can causeinjury.
WARNING: Use only DeWALT battery packs andchargers.
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. Do not use the saw without mounted extensions!
2. Clamp the extension’s rods against the mitre saw base by inserting the extension
screw63entirely through and the clamp.
3. Repeat steps 1and 2on the otherside.
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 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 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.
Changing or Installing a New Saw Blade (Fig. A, G)
WARNING: To reduce the risk of serious personal injury, turn tool off, remove the
battery pack, and place lock lever in the transport position 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 injury, wear gloves when handling the sawblade.
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 mitresaw.
WARNING! Be aware the saw blade shall be replaced in the described way only. Only use
saw blades as specified in section OptionalAccessories.
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.

13
ENGLISH
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 59 then outer clamp
washer 57 . 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 anti‑clockwise,
left‑hand threads.)
Kerf Plate Replacement (Fig. A)
1. To remove the kerf plate26, remove the screws holding the kerf plate in place and
replace with a newone.
2. Assemble the screws back in by following this sequence: First through the round holes
located halfway from the ends, then through the slots at the ends. No adjustment
isnecessary.
Mitre Scale Adjustment (Fig. A, H)
Unlock the mitre lock handle7 and swing the mitre arm until the mitre latch8 locks it at
the 0° mitre position. Do not lock the mitre 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 measurement.) If the saw blade is not exactly perpendicular to
the fence12, loosen the four mitre scale screws10 that hold the mitre scale and move the
mitre 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
mitre pointer at thistime.
Mitre Pointer Adjustment (Fig. A)
Unlock the mitre lock handle7 to move the mitre arm to the zero position. With the mitre
lock handle unlocked, squeeze the mitre detent latch8 and allow the mitre latch to snap into
place as you rotate the mitre arm to zero. Observe the mitre pointer31 and mitre scale9
shown in FigureA. If the pointer does not indicate exactly zero, loosen the mitre pointer
screw27 holding the pointer in place, reposition the pointer and tighten thescrew.
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 6mm blade wrench as necessary so that the
blade is at 0° bevel to thetable.
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.
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
and rotate 90° 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
6mm 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°.
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 10mm
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 10mm wrench until the bevel
pointer indicates exactly22.5°.
Fence Adjustment (Fig. A)
In order that the saw can bevel to many bevel positions, one of the fences may have to be
adjusted to provide clearance. To adjust each fence, loosen the fence adjustment knob16
and slide the fence outward. Make a dry run with the saw turned off and check for clearance.
Adjust the fence to be as close to the blade as practical to provide maximum workpiece
support, without interfering with arm up and down movement. Tighten the fence adjustment
knob securely. When the bevel operations are complete, don’t forget to relocate thefence.
For certain cuts, it may be desirable to bring the fences closer to the blade. To use this feature,
back the fence adjustment knobs out two turns and move the fences closer to the blade past
the normal limit, then tighten the fence adjustment knobs to keep the fences in this location.
When using this feature, make a dry cut first to ensure the blade does not contact thefences.
NOTE: The tracks of the fences can become clogged with sawdust. If you notice that they are
becoming clogged, use a brush or some low pressure air to clear the guidegrooves.
Guard Actuation and Visibility (Fig. A, Z)
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 lower guard6 on your saw has been designed to automatically uncover the blade when
the arm is brought down and to cover the blade when the arm israised.
The guard can be raised by hand when installing or removing saw blades or for inspection of
the saw. NEVER RAISE THE LOWER GUARD MANUALLY UNLESS THE BLADE ISSTOPPED.
NOTE: Certain special cuts of large material will require that you manually raise the guard.
Refer to Cutting Large Material under SpecialCuts.
The front section of the guard is louvered for visibility while cutting. Although the louvers
dramatically reduce flying debris, they are openings in the guard and safety glasses should be
worn at all times when viewing through thelouvers.
Rail Guide Adjustment (Fig. A, F)
Periodically check the rails24 for any play or clearance. The right rail can be adjusted with the
rail set screw33 shown in FigureF. To reduce clearance, use a 4 mm hex wrench and rotate
the rail set screw clockwise gradually while sliding the saw head back and forth. Reduce play
while maintaining minimum slideforce.
Mitre Lock Adjustment (Fig. A, K)
The mitre lock rod48 should be adjusted if the table of the saw can be moved when the
mitre lock handle7 is locked (down). To adjust the mitre lock49, put the mitre lock handle
in the unlocked (up) position. Using a slotted screwdriver, adjust the lock rod in 1/8 clockwise
turn increments to increase the lock force. To ensure the mitre lock is functioning properly,
re‑lock the mitre lock handle to a non‑detent mitre angle – for example , 34° ‑ and make sure
the table will notrotate.
Transporting the Saw (Fig. A)
WARNING: To reduce the risk of serious personal injury, turn tool off, remove the
battery pack, and place lock lever in the transport position 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30, mitre lock lever7,bevel lock knob13, head lock knob19 and fence
adjustment knobs16 ,before transportingsaw.
In order to conveniently carry the mitre saw from place to place, a lifting handle15 has been
included on the top of the saw arm and hand indentations11 in thebase.
Head Lock Knob (Fig.A)
WARNING: The head lock knob should be used ONLY when carrying or storing the
saw. NEVER use the headlock knob for any cuttingoperation.
To lock the saw head in the down position, push the head down, rotate head lock knob19
90° and the spring loaded pin will lock 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, pull out the head lock knob and rotate 90°.
FEATURES AND CONTROLS
WARNING: To reduce the risk of serious personal injury, turn tool off, remove the
battery pack, and place lock lever in the transport position before transporting,
making any adjustments, cleaning, repairing, or removing/installing
attachments or accessories. An accidental start‑up can causeinjury.
Bevel Lock Knob (Fig.A)
The bevel lock knob13 allows you to bevel the saw 49° left or right. To adjust the bevel
setting, turn the knob counterclockwise. The saw head bevels easily to the left or to the right
once in the 0° bevel override knob28 is in the 0° bevel override position. To tighten, turn the
bevel lock knobclockwise.
0° Bevel Override (Fig.A)
The bevel stop overrideallows 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 0° bevel stop28, rotate 90° (either clockwise
or counterclockwise) and let go for the spring loaded pin to lock in.
To return the bevel to 0° bevel stop, pull the bevel lock knob, rotate 90° (either clockwise or
counterclockwise) and let go for the spring loaded pin will lockin.
45 ° Bevel Stop Override (Fig.J)
There are two bevel stop override levers50, one on each side of the saw. To bevel the saw,
left or right, past 45°, push the 45° bevel override lever rearward. When in the rearward
position, the saw can bevel past these stops. When the 45° stops are needed, pull the 45°
bevel override leverforward.
Crown Bevel Pawls (Fig.J)
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 crown bevel pawl51 can be rotated to contact
the crown adjustment screw46. The saw is factory set to be used for typical crown in North
America (52/38), but can be reversed to cut non‑typical (45/45) crown. To reverse the crown

14
ENGLISH
bevel pawl, remove the retaining screw, the 22.5° bevel pawl and the 30° crown bevel pawl.
Flip the crown bevel pawl so the 33.9° is facing up. Reattach the screw to secure the 22.5°
bevel pawl and the crown bevel pawl. The accuracy setting will not beaffected.
22.5° Bevel Pawls (Fig.J)
Your saw is equipped to rapidly and accurately set a 22.5° bevel, left or right. The 22.5° bevel
pawl47can be rotated to contact the crown adjustmentscrew.
Rail Lock Knob (Fig.A)
The rail lock knob30 allows you to lock the saw head firmly to keep it from sliding on the
rails. This is necessary when making certain cuts or when transporting thesaw.
Depth Stop (Fig.A)
The depth stop25 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 depth stop forward and adjust
the depth adjustment screw29 to set the desired depth of cut. To secure the adjustment,
tighten the wing nut22. Rotating the depth stop to the rear of the saw will bypass the depth
stop feature. If the depth adjustment screw is too tight to loosen by hand, the provided blade
wrench can be used to loosen thescrew.
Slide Lock Transport Lever (Fig.L1–L3)
Slide Lock Position (Fig.L1)
The slide lock transport lever61 in forward location locks saw for maximize vertical
cuttingcapacity.
Transport Position (Fig.L2)
The slide lock transport lever61 in rear location locks saw in the transport position to secure
the saw head during transport and storage. Recommended for relocating or carrying thesaw.
Stow Position (Fig.L3)
When not in use, the slide lock transport lever61 can be placed in a stow position. The slide
lock lever locks in place using an indent on the back of the lever that slides up the ramp and
falls into the cast pocket65. To unlock the lever, slightly pull the lever till it clears out of the
cast pocket and rotateclockwise.
Automatic Electric Brake
Your saw is equipped with an automatic electric blade brake which stops the saw blade within
5seconds of trigger release. This is notadjustable.
On occasion, there may be a delay after trigger release to brake engagement. On rare
occasions, the brake may not engage at all and the blade will coast to astop.
If a delay or “skipping” occurs, turn the saw on and off 4or 5times. If the condition persists,
have the tool serviced by an authorized DeWALT servicecenter.
Always be sure the blade has stopped before removing it from the kerf. The brake
is not a substitute for guards or for ensuring your own safety by giving the saw your
completeattention.
Wireless Tool Control (Fig. A)
CAUTION: Read all saftey warnings, instruction and specifications of the appliance which
is paired with thetool.
Your tool is equipped with a Wireless Tool Control transmitter which allows your tool to be
wirelessly paired with another Wireless Tool Control device, such as a dustextractor.
To pair your tool using Wireless Tool Control, press and hold the trigger switch1 on the tool
and the Wireless Tool Control pairing button on the seperate device. An LED on the seperate
device will let you know when your tool has been successfullypaired.
Prior to Operation
• Install the base extensions to both sides of the saw's base. Refer to Assembling the Base
Extensionssection.
• Check the protective belt cover for damage and the proper functioning of the lowerguard.
• Make sure to use the kerf plate. Do not operate the machine if the kerf slot is wider than
12mm.
• Install the appropriate saw blade. Do not use excessively worn blades. The maximum
rotation speed of the tool must not exceed that of the sawblade.
• Make sure all locking knobs and clamp handles aretight.
• Use personal protective equipment and connect the saw to an external dustextractor.
• Although this saw will cut wood and many nonferrous materials, these operating
instructions refer to the cutting of wood only. The same guidelines apply to the other
materials. Do not cut ferrous (iron and steel) materials, fibre cement or masonry with this
saw!
• Do not attempt to cut excessively small pieces.
• Secure theworkpiece.
• Allow the blade to cut freely. Do notforce.
• Allow the motor to reach full speed beforecutting.
OPERATION
Instructions for Use
WARNING: Always observe the safety instructions and applicableregulations.
WARNING: To reduce the risk of serious personal injury, turn tool off and
disconnect battery pack before making any adjustments or removing/installing
attachments or accessories. An accidental start‑up can causeinjury.
Installing and Removing the Battery Pack (Fig. A)
WARNING: Ensure the tool/appliance is in the off position before inserting the
batterypack.
NOTE: For best results, make sure your battery pack is fullycharged.
To install the battery pack3 into the tool handle, align the battery pack with the rails inside
the tool’s handle and slide it into the handle until the battery pack is firmly seated in the tool
and ensure that it does notdisengage.
To remove the battery pack from the tool, press the release button4 and firmly pull the
battery pack out of the tool handle. Insert it into the charger as described in the charger
section of thismanual.
Body and Hand Position (Fig. M)
WARNING: To reduce the risk of serious personal injury, ALWAYS use proper hand position
asshown.
WARNING: To reduce the risk of serious personal injury, ALWAYS hold securely in anticipation
of a suddenreaction.
Proper positioning of your body and hands when operating the mitre saw will make cutting
easier, more accurate and safer. Never place hands near cutting area. Place hands no closer
than 100mm from the blade. Hold the workpiece tightly to the table and the fence when
cutting. Keep hands in position until the trigger has been released and the blade has
completely stopped. ALWAYS MAKE DRY RUNS (UNPOWERED) BEFORE FINISH CUTS SO THAT
YOU CAN CHECK THE PATH OF THE BLADE. DO NOT CROSS ARMS, AS SHOWN IN FIGUREM.
Keep both feet firmly on the floor and maintain proper balance. As you move the mitre arm
left and right, follow it and stand slightly to the side of the saw blade. Sight through the guard
louvers when following a pencilline.
Trigger Switch (Fig. N)
To turn the saw on, push the lock‑off lever41 to the left, then depress the trigger switch1.
The saw will run while the switch is depressed. Allow the blade to spin up to full operating
speed before making the cut. To turn the saw off, release the switch. Allow the blade to stop
before raising the saw head. There is no provision for locking the switch on. A hole52 is
provided in the trigger for insertion of a padlock to lock the switchoff.
Always be sure the blade has stopped before removing it from thekerf.
Dust Extraction (Fig. O)
WARNING: To reduce the risk of serious personal injury, turn tool off, remove the
battery pack, and place lock lever in the transport position before transporting,
making any adjustments, cleaning, repairing, or removing/installing
attachments or accessories. An accidental start‑up can causeinjury.
CAUTION: Never operate this saw unless the dust bag or DeWALT dust extractor is
in place. Wood dust may create a breathinghazard.
Dust from materials such as lead‑containing coatings and some wood types, can be harmful
to one’s health. Breathing‑in the dust can cause allergic reactions and/or lead to respiratory
infections of the user or bystanders. Certain dust, such as oak or beech dust, is considered
carcinogenic, especially in connection with wood treatmentadditives.
Observe the relevant regulations in your country for the materials to be worked. The vacuum
cleaner must be suitable for the material beingworked.
When vacuuming dry dust that is especially detrimental to health or is carcinogenic, use a dust
class M vacuumcleaner.
Your saw has a built‑in dust port17 that allows an Airlock™ compatible dust collection
system to beconnected.
To Attach the Dust Bag (Fig.P)
1. Fit the dust bag53 to the dust port17 as shown in FigureP.
To Empty the Dust Bag (Fig.P)
1. Remove dust bag53 from the saw and gently shake or tap the dust bag toempty.
2. Reattach the dust bag back onto the dust port17.
You may notice that all the dust will not come free from the bag. This will not affect cutting
performance but will reduce the saw's dust collection efficiency. To restore your saw's dust
collection efficiency, depress the spring inside the dust bag when you are emptying it and tap
it on the side of the trash can or dustreceptacle.
Through‑Cutting Operations (Fig. A)
If the slide feature is not used, ensure the saw head is pushed back as far as possible and
the rail lock knob is tightened. This will prevent the saw from sliding along its rails as the
workpiece isengaged.
NOTE: Although this saw will cut wood and many non‑ferrous materials, we will limit our
detailed discussion to the cutting of wood only. The same guidelines apply to the other
materials. DO NOT CUT FERROUS (IRON AND STEEL) MATERIALS OR MASONRY WITH THIS
SAW. Do not use any abrasiveblades.
NOTE: Refer to Guard Actuation and Visibility in the Assembly and Adjustments section
for important information about the lower guard beforecutting.
Crosscuts (Fig.A, Q)
A crosscut is made by cutting wood across the grain at any angle. A straight crosscut is made
with the mitre arm at the zero degree position. Set and lock the mitre arm at zero, hold the
wood firmly on the table and against the fence. With the rail lock knob tightened, turn on the
saw by squeezing the trigger switch1 shown in FigureA.
When the saw comes up to speed (about 1second) lower the arm smoothly and slowly to cut
through the wood. Let the blade come to a full stop before raising arm.

15
ENGLISH
When cutting anything larger than a 51x 203mm (51 x 152at 45º mitre) use an
out‑down‑back motion with the rail lock knob loosened. Pull the saw out, toward you, lower
the saw head down toward the workpiece, and slowly push the saw back to complete the cut.
Do not allow the saw to contact the top of the workpiece while pulling out. The saw may run
toward you, possibly causing personal injury or damage to theworkpiece.
Cutting of multiple pieces is not recommended but can be done safely by ensuring that each
piece is held firmly against the table and fence.
NOTE: To provide greater crosscut capacity with reduced stroke, the blade on the DCS781
extends deeper into the table. As a result, a greater lifting force on the workpiece may be
experienced during thecut.
CAUTION: Always use a work clamp to maintain control and reduce the risk of workpiece
damage and personal injury, if your hands are required to be within 100mm of the blade
during thecut.
NOTE: The rail lock knob30 shown in Figure A must be loose to allow the saw to slide along
its rails24.
Mitre crosscuts are made with the mitre arm at some angle other than zero. This angle is often
45º for making corners, but can be set anywhere from zero to 50º left or 60° right. Make the
cut as described above.
When performing a mitre cut on workpieces wider than a 51mm X 152mm that are shorter in
length, always place the longer side against the fence12 (FigureQ).
To cut through an existing pencil line on a piece of wood, match the angle as close as possible.
Cut the wood a little too long and measure from the pencil line to the cut edge to determine
which direction to adjust the mitre 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13, 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 bevel lock firmly. Refer to the Controls section for detailed instructions on the
bevelsystem.
Bevel angles can be set from 49º right to 49º left and can be cut with the mitre arm set
between 50º left or 60º right. At some extreme angles, the right or left side fence might have
to be removed. To remove the left or right fence, unscrew the fence adjustment knob16
several turns and slide the fenceout.
NOTE: Refer to Fence Adjustment in the Assembly and Adjustments section for important
information on adjusting the fences for certain bevelcuts.
Quality of Cut
The smoothness of any cut depends on a number of variables. Things like material being cut,
blade type, blade sharpness and rate of cut all contribute to the quality of thecut.
When smoothest cuts are desired for molding and other precision work, a sharp (60 tooth
carbide) blade and a slower, even cutting rate will produce the desiredresults.
Ensure that the material does not move or creep while cutting; clamp it securely in place.
Always let the blade come to a full stop before raisingarm.
If small fibers of wood still split out at the rear of the workpiece, stick a piece of masking tape
on the wood where the cut will be made. Saw through the tape and carefully remove tape
whenfinished.
For varied cutting applications, refer to the list of recommended saw blades for your saw and
select the one that best fits your needs. Refer to Saw Blades under OptionalAccessories.
Non‑Through‑Cutting (Grooving and Rabbeting)
Instructions in the Crosscuts, Bevel Cuts and Cutting Compound Mitres sections are for cuts
made through the full thickness of the material. The saw can also perform non‑through cuts to
form grooves or rabbets in thematerial.
Groove Cut (Fig.A)
Refer to Depth Stop for detailed instructions for setting depth of cut. A piece of scrap wood
should be used to verify the desired depth ofcut.
Hold the wood firmly on the table and against the fence12. Align the cut area underneath
the blade. Position the saw arm fully forward, with blade in down position. Turn on the saw by
squeezing the trigger switch1 shown in FigureA. Smoothly, push saw arm rearward to cut a
groove through the workpiece.
Release the trigger switch with the saw arm down. When saw blade has completely stopped,
raise the saw arm. Always let the blade come to a full stop before raising thearm.
To widen the groove, repeat steps 1–4 until the desired width isobtained.
Clamping the Workpiece (Fig. A)
WARNING: To reduce the risk of serious personal injury, turn off the tool and
disconnect it from the power source before attempting to move it, change
accessories or make anyadjustments.
WARNING: A workpiece that is clamped, balanced and secure before a cut may become
unbalanced after a cut is completed. An unbalanced load may tip the saw or anything the
saw is attached to, such as a table or workbench. When making a cut that may become
unbalanced, properly support the workpiece and ensure the saw is firmly bolted to a
stable surface. Personal injury mayoccur.
WARNING: The clamp foot must remain clamped above the base of the saw whenever
the clamp is used. Always clamp the workpiece to the base of the saw–not to any other
part of the work area. Ensure the clamp foot is not clamped on the edge of the base of
thesaw.
CAUTION: Always use a work clamp to maintain control and reduce the risk of workpiece
damage and personalinjury.
If you cannot secure the workpiece on the table and against the fence by hand, (irregular
shape, etc.) or your hand would be less than 100mm from the blade, a clamp or other fixture
must beused.
For best results use the vertical material clamp23 provided with your saw. Additional clamps
can be purchased at 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. Take time to make a
dry run before making the cut. The left fence will slide from side to side to aid in clamping
To Install Clamp (Fig.A)
1. Insert clamp post into the hole behind the fence12.
2. Adjust the clamp up turning the knob counterclockwise. And clamp down by turning the
knob clockwise. Make sure to firmly clamp theworkpiece.
NOTE: Place the clamp on the opposite side of the base when beveling. ALWAYS MAKE DRY
RUNS (UNPOWERED) BEFORE FINISH CUTS TO CHECK THE PATH OF THE BLADE. ENSURE THE
CLAMP DOES NOT INTERFERE WITH THE ACTION OF THE SAW ORGUARDS.
Support for Long Pieces
WARNING: To reduce the risk of serious personal injury, turn off the tool and
disconnect it from the power source before attempting to move it, change
accessories or make anyadjustments.
ALWAYS SUPPORT LONGPIECES.
Never use another person as a substitute for a table extension; as additional support for a
workpiece that is longer or wider than the basic mitre saw table or to help feed, support or
pull theworkpiece.
Support long workpieces using any convenient means such as sawhorses or similar devices to
keep the ends fromdropping.
Cutting Picture Frames, Shadow Boxes and Other Four‑Sided
Projects (Fig. R)
To best understand how to make the items listed here, we suggest that you try a few simple
projects using scrap wood until you develop a “feel” for yoursaw.
Your saw is the perfect tool for mitreing corners like the one shown in FigureR. Sketch 1in
FigureR shows a joint made by using the bevel adjustment to bevel the edges of the two
boards at 45º each to produce a 90º corner. For this joint the mitre arm was locked in the
zero position and the bevel adjustment was locked at 45º. The wood was positioned with the
broad flat side against the table and the narrow edge against the fence. The cut could also be
made by mitreing right and left with the broad surface against thefence.
Cutting Trim Molding and Other Frames (Fig. R)
Sketch 2in FigureR shows a joint made by setting the mitre arm at 45º to mitre the two
boards to form a 90º corner. To make this type of joint, set the bevel adjustment to zero and
the mitre arm to 45º. Once again, position the wood with the broad flat side on the table and
the narrow edge against thefence.
The two sketches in FigureR are for four‑sided objectsonly.
As the number of sides changes, so do the mitre and bevel angles. The chart below gives the
proper angles for a variety ofshapes.
– EXAMPLES –
NUMBER OF SIDES Mitre OR BEVEL ANGLE
4 45°
5 36°
6 30°
7 25.7°
8 22.5°
9 20°
10 18°
The chart assumes that all sides are of equal length. For a shape that is not shown in the
chart, use the following formula: 180º divided by the number of sides equals the mitre (if the
material is cut vertically) or bevel angle (if the material is cut layingflat).
Cutting Compound Mitres (Fig. S)
A compound mitre is a cut made using a mitre angle and a bevel angle at the same time.
This is the type of cut used to make frames or boxes with slanting sides like the one shown in
FigureT.
WARNING: If the cutting angle varies from cut to cut, check that the bevel lock knob and
the mitre lock handle are securely locked. These must be locked after making any changes
in bevel ormitre.
The chart shown below will assist you in selecting the proper bevel and mitre settings for
common compound mitrecuts.
• Select the desired angle A (Fig.S) of your project and locate that angle on the appropriate
arc in thechart.
• From that point follow the chart straight down to find the correct bevel angle and straight
across to find the correct mitreangle.
• Set your saw to the prescribed angles and make a few trial cuts. Practise fitting the cut
piecestogether.

16
ENGLISH
Example: To make a 4‑sided box with 26° exterior angles (Angle A, Fig.S), use the upper right
arc. Find 26° on the arc scale. Follow the horizontal intersecting line to either side to get mitre
angle setting on saw (42°). Likewise, follow the vertical intersecting line to the top or bottom
to get the bevel angle setting on the saw (18°). Always try cuts on a few scrap pieces of wood
to verify the settings on thesaw.
SET THIS BEVEL ANGLE ON SAW
SET THIS MITER ANGLE ON SAW
ANGLE OF SIDE OF BOX (ANGLE"A")
SQUARE BOX
6 SIDED BOX
8 SIDED BOX
Cutting Base Molding (Fig. T)
ALWAYS MAKE A DRY RUN WITHOUT POWER BEFORE MAKING ANYCUTS.
Straight 90° cuts:
Position the wood against the fence and hold it in place as shown in FigureT. Turn on the saw,
allow the blade to reach full speed and lower the arm smoothly through thecut.
Cutting Base Molding up to 165mm Vertically Against the Fence
(Fig.L, T)
NOTE: Use the slide lock lever, shown in Figure L1 when cutting base molding measuring
from 76 mm to 165 mm high vertically against thefence.
Position material as shown in FigureT.
All cuts should be made with the back of the molding against the fence and with the bottom
of the molding against thetable.
Inside corner Outside corner
Left side 1. Mitre left 45°
2. Save left side of cut
1. Mitre right 45°
2. Save left side of cut
Right side 1. Mitre right 45°
2. Save right side of cut
1. Mitre left 45°
2. Save right side of cut
Material up to 165mm can be cut as describedabove.
Cutting Crown Molding
Your mitre saw is better suited to the task of cutting crown molding than any tool made. In
order to fit properly, crown molding must be compound mitreed with extremeaccuracy.
The two flat surfaces on a given piece of crown molding are at angles that, when added
together, equal exactly 90°. Most, but not all, crown molding has a top rear angle (the section
that fits flat against the ceiling) of 52° and a bottom rear angle (the part that fits flat against
the wall) of38°.
Your mitre saw has special pre‑set mitre latch points at 31.6° left and right for cutting crown
molding at the proper angle and bevel stop pawls at 33.9° left and right. There is also a mark
on the bevel scale at 33.9°.
The chart below gives the proper settings for cutting crown molding. (The numbers for
the mitre and bevel settings are very precise and are not easy to accurately set on your
saw.) Since most rooms do not have angles of precisely 90º, you will have to fine tune your
settingsanyway.
PRETESTING WITH SCRAP MATERIAL IS EXTREMELY IMPORTANT!
Instructions for Cutting Crown Molding Laying Flat and Using the
Compound Features (Fig.A, U)
1. Molding laying with broad back surface down flat on saw table18.
2. Top of molding against fence12.
3. The settings below are for all standard (U.S.) crown molding with 52° and 38°angles.
Inside corner Outside corner
Left side
1. Bevel left 33.9°
2. Mitre table set at right 31.62°
3. Save left end of cut
1. Bevel right 33.9°
2. Mitre table set at left 31.62°
3. Save left end of cut
Right side
1. Bevel right 33.9°
2. Mitre table set at left 31.62°
3. Save right end of cut
1. Bevel left 33.9°
2. Mitre table set at right 31.62°
3. Save right end of cut
When setting bevel and mitre angles for all compound mitres, remember that:
The angles presented for crown moldings are very precise and difficult to set exactly. Since
they can easily shift slightly and very few rooms have exactly square corners, all settings should
be tested on scrapmolding.
PRETESTING WITH SCRAP MATERIAL IS EXTREMELY IMPORTANT!
Alternative Method for Cutting Crown Molding (Fig.V)
Place the molding on the table at an angle between the sliding fence12 and the saw
table18, as shown in FigureV. Use of the crown molding fence accessory (DW7084) is highly
recommended because of its degree of accuracy and convenience. The crown molding fence
accessory is available for purchase from your localdealer.
The advantage to cutting crown molding using this method is that no bevel cut is required.
Minute changes in the mitre angle can be made without affecting the bevel angle. This way,
when corners other than 90° are encountered, the saw can be quickly and easily adjusted for
them. Use the crown molding fence accessory to maintain the angle at which the molding will
be on thewall.
Instructions for Cutting Crown Molding Angled Between the Fence and
Base of the Saw for All Cuts
1. Angle the molding so the bottom of the molding (part which goes against the wall when
installed) is against the fence and the top of the molding is resting on the base of the saw,
as shown in FigureV..
2. The angled “flats” on the back of the molding must rest squarely on the fence and base of
thesaw.
Inside corner Outside corner
Left side 1. Mitre right 45°
2. Save right side of cut
1. Mitre left 45°
2. Save right side of cut
Right side 1. Mitre left 45°
2. Save left side of cut
1. Mitre right 45°
2. 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.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, provides proper lubrication and keeps chips from
adhering to theblade.
Be sure to properly secureworkpiece.
Refer to Saw Blades under Optional 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.
MAINTENANCE
Your DeWALT power tool has been designed to operate over a long period of time with a
minimum of maintenance. Continuous satisfactory operation depends upon proper tool care
and regularcleaning.
WARNING: To reduce the risk of serious personal injury, turn machine off and
disconnect battery pack before making any adjustments or removing/installing
attachments or accessories. An accidental start‑up can causeinjury.
WARNING: If the saw blade is worn replace it with a new sharpblade.
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.

17
ENGLISH
Lubrication
Your power tool requires no additionallubrication.
Cleaning
Before use, carefully check the upper blade guard, movable lower blade guard as well as
the dust extraction tube to determine that it will operate properly. Ensure that chips, dust or
workpiece particle cannot lead to blockage of one of thefunctions.
In case of workpiece fragments jammed between saw blade and guards disconnect the
machine from the power supply and follow the instructions given in section Changing or
Installing a New Saw Blade. Remove the jammed parts and reassembling the sawblade.
WARNING: Blow dirt and dust out of the main housing with dry air as often as dirt is seen
collecting in and around the air vents. Wear approved eye protection and approved dust
mask 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 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.
WARNING: To reduce the risk of injury, regularly clean the tabletop.
WARNING: To reduce the risk of injury, regularly clean the dust collectionsystem.
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 mitre 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.
Troubleshooting Guide
BE SURE TO FOLLOW SAFETY RULES AND INSTRUCTIONS
TROUBLE! WHAT’S WRONG? WHAT TO DO
Saw will not start Battery not installed Install battery. Refer to Installing and Removing BatteryPack.
Battery not charged Charge battery. Refer to ChargingProcedure.
Saw overheated Wait several minutes for saw tocool.
Batteries overheated Wait several minutes for batteries tocool.
Saw makes unsatisfactory cuts Dull blade Replace blade. Refer to Changing or Installing a New Saw Blade.
Blade mounted backwards Turn blade around. Refer to Changing or Installing a New Saw Blade.
Gum or pitch on blade Remove blade and clean with coarse steel wool and turpentine or household
ovencleaner.
Incorrect blade for work being done Change the blade type. Refer to Saw Blades under Optional Accessories.
CUTLINE worklight is flashing Battery not charged Charge battery. Refer to ChargingProcedure.
Machine vibrates excessively Saw not mounted securely to stand or
work bench
Tighten all mounting hardware. Refer to Bench Mounting.
Stand or bench on uneven floor Reposition on flat level surface. Refer to Familiarization.
Damaged saw blade Replace blade. Refer to Changing or Installing a New Saw Blade.
Does not make accurate mitre cuts Mitre scale not adjusted correctly Check and adjust. Refer to Mitre Scale Adjustment under Assembly and
Adjustments.
Blade is not square to fence Check and adjust. Refer to Mitre Scale Adjustment under Assembly and
Adjustments.
Blade is not perpendicular to table Check and adjust fence. Refer to Bevel Square to Table Adjustment under
Assembly and Adjustments.
Workpiece moving Clamp workpiece securely to fence or glue 120grit sandpaper to fence with
rubbercement.
Kerf plate worn or damaged Take to authorized servicecenter.
Mitre pointer not adjusted correctly Check and adjust. Refer to Mitre Pointer Adjustment under Assembly
andAdjustments.
Material pinches blade Cutting bowed material Refer to Bowed Material under Special Cuts.
Optional 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.
SAW BLADES: ALWAYS USE 305 mm SAW BLADES WITH 25.4 mm ARBOUR 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 (thin kerf with anti‑stick rim)
General Purpose 305 mm 40
Fine Crosscuts 305 mm 60
Woodworking Saw Blades (provide smooth, clean cuts)
Fine crosscuts 305 mm 80
Non‑ferrous metals 305 mm 96
Consult your dealer for further information on the appropriateaccessories.
Protecting the Environment
Separate collection. Products and batteries marked with this symbol must not be
disposed of with normal householdwaste.
Products and batteries contain materials that can be recovered or recycled reducing
the demand for raw materials. Please recycle electrical products and batteries
according to local provisions. Further information is available at www.2helpU.com.
Rechargeable Battery Pack
This long life battery pack must be recharged when it fails to produce sufficient power on jobs
which were easily done before. At the end of its technical life, discard it with due care for our
environment:
• Run the battery pack down completely, then remove it from thetool.
• Li‑Ion cells are recyclable. Take them to your dealer or a local recycling station. The
collected battery packs will be recycled or disposed ofproperly.

Belgique et
Luxembourg België en Luxemburg
DeWALT - Belgium BVBA
Egide Walschaertsstraat 16
2800 Mechelen
Tel: NL 32 15 47 37 63
Tel: FR 32 15 47 37 64
Fax: [phone]
www.dewalt.be
[email protected]
Danmark DeWALT (STAnLey BLAck&Decker AS)
Roskildevej 22
2620 Albertslund
Tel: [phone]
Fax: [phone]
www.dewalt.dk
[email protected]
Deutschland DeWALT
Richard Klinger Str. 11
65510 Idstein
Tel: [phone]
Fax: [phone]
www.dewalt.de
[email protected]
Ελλάς DeWALT (Ελλάς) Α.Ε.
EΔΡΑ-ΓΡΑΦΕΙΑ : Στράβωνος 7
& Λ. Βουλιαγμένης, Γλυφάδα 166 74, Αθήνα
SERVICE : Ημερος Τόπος 2 (Χάνι Αδάμ) – 193 00 Ασπρόπυργος
Τηλ: 00302108981616
Φαξ: 00302108983570
www.dewalt.gr
[email protected]
España DeWALT Ibérica, S.C.A.
Parc de Negocios “Mas Blau”
Edificio Muntadas, c/Bergadá, 1, Of. A6
08820 El Prat de Llobregat (Barcelona)
Tel: [phone]
Fax: [phone]
www.dewalt.es
[email protected]
France DeWALT (Stanley Black & Decker France SAS)
62 Chemin de la Bruyère
CS 60105,
69574 DARDILLY Cedex
Tel: [phone]
Fax: [phone]
www.dewalt.fr
[email protected]
Schweiz
Suisse
Svizzera
DeWALT
In der Luberzen 42
8902 Urdorf
Tel: 044 - 755 60 70
Fax: 044 - 730 70 67
www.dewalt.ch
[email protected]
Ireland DeWALT
Building 4500, Kinsale Road
Cork Airport Business Park
Cork, Ireland
Tel: [phone]
Fax: [phone]
www.dewalt.ie
[email protected]
Italia DeWALT
via Energypark 6
20871 Vimercate (MB), IT
Tel: [phone]
39 039-9590200
Fax: [phone]
www.dewalt.it
Nederlands DeWALT
Netherlands BVPostbus 83,
6120 AB BORN
Tel: [phone]
Fax: [phone]
www.dewalt.nl
Norge DeWALT
Postboks 4613
0405 Oslo, Norge
Tel: [phone]
Fax: [phone]
www.dewalt.no
[email protected]
Österreich DeWALT
Werkzeug Vertriebsges m.b.H
Oberlaaerstrasse 248, A-1230 Wien
Tel: 01 - 66116 - 0
Fax: 01 - 66116 - 614
www.dewalt.at
[email protected]
Portugal DeWALT
Ed. D Dinis, Quina da Fonte
Rua dos Malhoes 2 2A 2º Esq.
Oeiras e S. Juliao da Barra, paço de Arcos e Caxias
2770 071 Paço de Arcos
Tel: [phone]
Fax: [phone]
www.dewalt.pt
[email protected]
Suomi DeWALT
PL47
00521 Helsinki, Suomi
Puh: 010 400 4333
Faksi: 0800 411 340
www.dewalt.fi
[email protected]
Sverige DeWALT
BOX 94
43122 Mölndal
Sverige
Tel: [phone]
Fax: [phone]
www.dewalt.se
[email protected]
Türkiye Sanayi ve Ticareet Bakanlığı tebliğince kullanim ömrü 7 yıldır.
Stanley Black & Decker Turkey Alet Üretim San. Tic. Ltd.Şti.
AND Kozyataği - İçerenköy Mah. Umut Sok. AND Ofis Sit. No: 10-12 / 82-83-84
Ataşehir/İstanbul, Türkiye
Tel: [phone]
Faks: [phone]
www.dewalt.com.tr
[email protected]
United
Kingdom
DeWALT, 210 Bath Road;
Slough, Berks SL1 4DX
Tel: [phone]
Fax: [phone]
www.dewalt.co.uk
[email protected]
Australia DeWALT
810 Whitehorse Road Box Hill
VIC 3128 Australia
Tel: Aust 1800 338 002
Tel: NZ 0800 339 258
www.dewalt.com.au
www.dewalt.co.nz
Middle East Africa DeWALT
P.O. Box - 17164,
Jebel Ali Free Zone (South), Dubai, UAE
Tel: [phone]
Fax: [phone]
www.dewalt.ae
[email protected]
NA177547 04/22