DeWalt DWS771 User manual

DWS771
DWS777
Final Page Size: 210 x 297mm

1
Figure A
Figure B
DWS771
00-00-0000
1
34
5
6
19
17
25
9
29
16
8
32
15
2
57
3
7
10
11
14
12
13
30
25
22
32
22
21
20
22
31
27
28
26
232418
4

2
Figure C
Figure E Figure F
Figure D
Figure G Figure H
Figure I Figure J
40
3817373635
39 41
35
42
40
28
27
26
26
33
45
35
6
57
5
14

3
Figure K Figure L
Figure M Figure N
Figure P
Figure O
169
43
49
12
15
16
1451
5016
8
55
31
52
20
46
48
47

4
Figure R
Figure U
Figure S Figure T
Figure Q
Figure V
XPS
56
54
21
54
53
8
50

5
Figure X
Figure W
1
A1
2
3

ENGLISH
6
Denotes risk of electricshock.
Denotes risk offire.
Denotes sharpedges.
EC-Declaration of Conformity
Machinery Directive
Cross-cut Mitre Saw
DWS771, DWS777
DeWALT declares that these products described under Technical Data are in compliance with:
2006/42/EC, EN61029-1:2009 + A11:2010, EN61029-2-9:2012 + A11:2013.
These products also comply with Directive 2004/108/EC (until 19.04.2016), 2014/30/EU (from
20.04.2016) 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
Director Engineering
DeWALT, Richard-Klinger-Straße 11,
D-65510, Idstein, Germany
26.02.2016
Safety Instructions
WARNING! When using electric tools basic safety precautions should always be followed
to reduce the risk of fire, electric shock and personal injury including thefollowing.
Read all these instructions before attempting to operate this product and save theseinstructions.
SAVE THIS MANUAL FOR FUTURE REFERENCE
General Safety Rules
1 . Keep work areaclear.
Cluttered areas and benches inviteinjuries.
2 . Consider work areaenvironment.
Do not expose the tool to rain. Do not use the tool in damp or wet conditions. Keep the
work area well lit (250–300 Lux). Do not use the tool where there is a risk of causing fire or
explosion, e.g., in the presence of flammable liquids andgases. Work area should be well
ventilated.
3 . Guard against electricshock.
Avoid body contact with earthed surfaces (e.g., pipes, radiators, cookers and refrigerators).
When using the tool under extreme conditions (e.g., high humidity, when metal swarf is being
produced, etc.), electric safety can be improved by inserting an isolating transformer or a (FI)
earth-leakage circuit-breaker.
4 . Keep other personsaway.
Do not let persons, especially children, not involved in the work, touch the tool or the
extension cord and keep them away from
the workarea.
5 . Store idletools.
When not in use, tools must be stored in a dry place and locked
up securely, out of reach ofchildren.
6 . Do not force thetool.
It will do the job better and safer at the rate to which it wasintended.
7 . Use the righttool.
Do not force small tools to do the job of a heavy duty tool. Do not use tools for purposes not
intended; for example do not use circular saws to cut tree limbs orlogs.
8 . Dressproperly.
Do not wear loose clothing or jewellery, as these can be caught in moving parts. Non-skid
footwear is recommended when working outdoors. Wear protective hair covering to contain
longhair.
9 . Use protectiveequipment.
Always use safety glasses. Use a face or dust mask if working operations create dust or flying
particles. If these particles might be considerably hot, also wear a heat-resistant apron. Wear
ear protection at all times. Wear a safety helmet at alltimes.
10 . Connect dust extractionequipment.
If devices are provided for the connection of dust extraction and collecting equipment, ensure
these are connected and properlyused.
11 . Do not abuse thecord.
Never yank the cord to disconnect it from the socket. Keep the cord away from heat, oil
and sharp edges. Never carry the tool by itscord.
12 . Securework.
Where possible use clamps or a vice to hold the work. It is safer than using your hand and it
frees both hands to operate thetool.
CROSS-CUT MITRE SAW
DWS771, DWS777
Congratulations!
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
DWS771 DWS777
Voltage V230 230
(U.K. & Ireland only) V230 230/115
Type 1 1
XPS Yes Yes
Power input W1550 1800/1600
Blade diameter mm 216 216
Blade bore mm 30 30
Max. blade speed min-1 2600–5200 6300
Mitre (max. positions) left and right 50° 50°
Bevel (max. positions) left 48° 48°
Compound mitre bevel 45° 45°
mitre 45° 45°
Capacities
cross-cut 90° mm 60 x 270 60 x 270
mitre 45° mm 60 x 190 60 x 190
mitre 48° mm 60 x 180 60 x 180
bevel 45° mm 48 x 270 48 x 270
bevel 48° mm 45 x 270 45 x 270
Overall dimensions mm 460 x 560 x 430 460 x 560 x 430
Weight kg 15.0 15.0
Noise values and vibration values (triax vector sum) according to EN61029:
LPA (sound pressure) dB(A) 91 93
LWA (acoustic power) dB(A) 102 104
K (acoustic power uncertainty) dB(A) 3.2 3.9
Vibration emission value ah
a
h
= m/s² 2.1 2.1
Uncertainty K = m/s² 1.5 1.5
The vibration emission level given in this information sheet has been measured in accordance
with a standardised test given in EN61029 and may be used to compare one tool with another.
It may be used for a preliminary assessment ofexposure.
WARNING: The declared vibration 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 emission may differ. This may significantly increase the
exposure level over the total workingperiod.
An estimation of the level of exposure to vibration 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
such as: maintain the tool and the accessories, keep the hands warm, organisation of
workpatterns.
Fuses
Europe 230 V tools 10 Amperes, mains
U.K. & Ireland 230 V tools 13 Amperes, in plugs
U.K. & Ireland 115 V tools 16 Amperes, mains
NOTE: This device is intended for the connection to a power supply system with maximum
permissible system impedance Zmax of 0.28 Ohm at the interface point (power service box) of
user’ssupply.
The user has to ensure that this device is connected only to a power system which fulfils the
requirement above. If necessary, the user can ask the public power supply company for the
system impedance at the interfacepoint.
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.
English (original instructions)

ENGLISH
7
• Disconnect the machine from the mains before carrying out any maintenance work or when
changing theblade.
• Never perform any cleaning or maintenance work when the machine is still running and the
head is not in the restposition.
• When fitted with LED, no exchange with different type of LED permitted. Repairs shall only be
carried out by the manufacturer or an authorized agent.
• Connect the saw to a dust collection device when sawing wood. Always consider factors
which influence exposure of dust suchas:
ʵ type of material to be machined (chip board produces more dust than wood);
ʵ sharpness of the saw blade;
ʵ correct adjustment of the saw blade,
ʵ dust extractor with air velocity not less than 20 m/s.
Ensure that the local extraction as well as hoods, baffles and chutes are properlyadjusted.
• Please be aware of the following factors influencing exposure
tonoise:
ʵ use saw blades designed to reduce the emitted noise;
ʵ use only well sharpened saw blades;
• Machine maintenance shall be conducted periodically;
• Provide adequate general or localized lighting;
• Ensure the operator is adequately trained in the use, adjustment and operation of the
machine;
• Ensure that any spacers and spindle rings are suitable for the purpose as stated in
thismanual.
• Refrain from removing any cut-offs or other parts of the workpiece from the cutting area while
the machine is running and the saw head is not in the rest position
• Never cut workpieces shorter than 150mm.
• Without additional support the machine is designed to accept the maximum workpiece
sizeof:
ʵ Height 60mm by width 270mm by length 500mm
ʵ Longer workpieces need to be supported by suitable additional table, e.g. DE7023. Always
clamp the workpiecesafely.
• In case of an accident or machine failure, immediately turn the machine off and disconnect
machine from the powersource.
• Report the failure and mark the machine in suitable form to prevent other people from using
the defectivemachine.
• When the saw blade is blocked due to abnormal feed force during cutting, turn the machine
off and disconnect it from power supply. Remove the workpiece and ensure that the saw
blade runs free. Turn the machine on and start new cutting operation with reduced feedforce.
• Never cut light alloy, especiallymagnesium.
• Whenever the situation allows, mount the machine to a bench using bolts with a diameter of
8mm and 80mm inlength.
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.
• Risk of injury when changing the unprotected saw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 increases the risk of breathingproblems:
• No dust extractor connected when sawing wood
• Insufficient dust extraction caused by uncleaned exhaust filters
Markings on Tool
The following pictograms are shown on thetool:
Read instruction manual before use.
Wear ear protection.
Wear eye protection.
Carrying point
Date Code Position (Fig. B)
The Date Code57 , which also includes the year of manufacture, is printed into thehousing.
Example:
2015 XX XX
Year of Manufacture
13 . Do notoverreach.
Keep proper footing and balance at alltimes.
14 . Maintain tools withcare.
Keep cutting tools sharp and clean for better and safer performance. Follow instructions for
lubricating and changing accessories. Inspect tools periodically and if damaged have
them repaired by an authorized service facility. Keep handles
and switches dry, clean and free from oil andgrease.
15 . Disconnecttools.
When not in use, before servicing and when changing accessories such as blades, bits and
cutters, disconnect tools from the powersupply.
16 . Remove adjusting keys andwrenches.
Form the habit of checking to see that adjusting keys and wrenches are removed from the tool
before operating thetool.
17 . Avoid unintentionalstarting.
Do not carry the tool with a finger on the switch. Be sure that the tool is in the “off” position
before pluggingin.
18 . Use outdoor extensionleads.
Before use, inspect the extension cable and replace if damaged. When the tool is used
outdoors, use only extension cords intended for outdoor use and markedaccordingly.
19 . Stayalert.
Watch what you are doing. Use common sense. Do not operate the tool when you are tired or
under the influence of drugs oralcohol.
20 . Check for damagedparts.
Before use, carefully check the tool and mains cable to determine that it will operate properly
and perform its intended function. Check for alignment of moving parts, binding of moving
parts, breakage of parts, mounting and any other conditions that may affect its operation. A
guard or other part that is damaged should be properly repaired or replaced by an authorized
service centre unless otherwise indicated in this instruction manual. Have defective switches
replaced by an authorized service centre.
Do not use the tool if the switch does not turn it on and off.
Never attempt any repairsyourself.
WARNING! The use of any accessory or attachment or performance of any operation
with this tool other than those recommended in this instruction manual may present a
risk of personalinjury.
21 . Have your tool repaired by a qualifiedperson.
This electric tool complies relevant safety rules. Repairs should only be carried out by qualified
persons using original spare parts; otherwise this may result in considerable danger to
theuser.
Additional Safety Rules for Mitre Saws
• The machine is provided with a special configured power supply cord which can only be
replaced by the manufacturer or its authorised serviceagent.
• Do not use the saw to cut other materials than those recommended by themanufacturer.
• Do not operate the machine without guards in position, or if guards do not function or are not
maintainedproperly.
• Ensure that the arm is securely fixed when performing bevelcuts.
• Keep the floor area around the machine level, well-maintained and free of loose materials,
e.g., chips and cut-offs.
• Select the correct blade for the material to becut.
• Use correctly sharpened saw blades. Observe the maximum speed mark on the sawblade.
• Make sure all locking knobs and clamp handles are tight before starting anyoperation.
• Never place either hand in the blade area when the saw is connected to the electrical
powersource.
• Never attempt to stop a machine in motion rapidly by jamming a tool or other means against
the blade; serious accidents canoccur.
• Before using any accessory consult the instruction manual.
The improper use of an accessory can causedamage.
• Use a holder or wear gloves when handling a saw blade or roughmaterial.
• Ensure that the saw blade is mounted correctly beforeuse.
• Make sure that the blade rotates in the correctdirection.
• Do not use blades of larger or smaller diameter than recommended. For the proper blade
rating refer to the technical data. Use only the blades specified in this manual, complying
with EN847-1.
• Consider applying specially designed noise-reductionblades.
• Do not use HIGH SPEED STEELblades.
• Do not use cracked or damaged sawblades.
• Do not use any abrasive or diamonddiscs.
• Use only saw blades where the marked speed is at least equal to the speed marked on thesaw.
• Never use your saw without the kerfplate.
• Raise the blade from the kerf in the workpiece prior to releasing theswitch.
• Before each cut ensure that the machine isstable.
• Do not wedge anything against the fan to hold the motorshaft.
• The blade guard on your saw will automatically raise when the arm is brought down; it will
lower over the blade when head lock up release lever2 ispushed.
• Never raise the blade guard manually unless the saw is switched off. The guard can be raised
by hand when installing or removing saw blades or for inspection of thesaw.
• Check periodically that the motor air slots are clean and free ofchips.
• Replace the kerf plate whenworn.

ENGLISH
8
Fitting a Mains Plug to 115 V Units
(U.K. and Ireland Only)
• The plug fitted should be comply with BS EN60309 (BS4343),
16 Amps, earthing contact position4h.
WARNING: Always ensure that the cable clamp is correctly and securely fitted to the
sheath of thecable.
Using an Extension Cable
If an extension cable is required, use an approved 3–core extension cable suitable for the
power input of this tool (see Technical Data). The minimum conductor size is 1.5mm2; the
maximum length is 30m.
When using a cable reel, always unwind the cablecompletely.
ASSEMBLY
WARNING: To reduce the risk of injury, turn unit off and disconnect machine
from power source before installing and removing accessories, before adjusting
or changing set-ups or when making repairs. Be sure the trigger switch is in the OFF
position. An accidental start-up can causeinjury.
Unpacking
The motor and guards are already assembled onto thebase.
Cable Clamp (Fig. F)
Insert the cable28 into the cable clamp27 . Allow enough cable for the saw head to travel,
then tighten the clamp by means of thescrew.
Bench Mounting (Fig. B)
1. Holes22 are provided in all four feet to facilitate bench mounting.
Two different sized holes are provided to accommodate different sizes of bolts. Use either
hole; it is not necessary to use both. Bolts with a diameter of 8mm and 80mm in length
is suggested. Always mount your saw firmly to prevent movement. To enhance the
portability, the tool can be mounted to a piece of 12.5mm or thicker plywood which can
then be clamped to your work support or moved to other job sites andreclamped.
2. When mounting your saw to a piece of plywood, make sure that the mounting screws do
not protrude from the bottom of the wood.
The plywood must sit flush on the work support. When clamping the saw to any work
surface, clamp only on the clamping bosses where the mounting screw holes are located.
Clamping at any other point will interfere with the proper operation of thesaw.
3. 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 is firm on the mountingsurface.
Mounting the Saw Blade (Fig. A, G–I)
WARNING: To reduce the risk of injury, turn unit off and disconnect machine
from power source before installing and removing accessories, before adjusting
or changing set-ups or when making repairs. Be sure the trigger switch is in the OFF
position. An accidental
start-up can causeinjury.
WARNING: The teeth of a new blade are very sharp and can bedangerous.
WARNING: Be aware the saw blade shall be replaced in the described way only. Only use
saw blades as specified under Technical Data; Cat.no.: DT4320 issuggested.
1. Insert the 6mm hex key26 into the opposite location of the blade shaft and hold
it(Fig.G).
2. Loosen the blade bolt6 by turning clockwise. Remove the blade bolt and the outer
flange5 .
3. Press the lower guard lock up release lever2 to raise the lower blade guard7 and
remove the saw blade8 .
4. Install the new saw blade onto the shoulder provided on the inner flange33 making sure
that the teeth at the bottom edge of the blade are pointing towards the fence (away from
the operator).
5. Replace the outer flange5 , making sure that the location lugs45 are engaged correctly,
one on each side of the motorshaft.
6. Tighten the blade bolt6 by turning anti-clockwise while holding the 6mm hex key26
engaged with your other hand (Fig.I).
ADJUSTMENTS
WARNING: To reduce the risk of injury, turn unit off and disconnect machine
from power source before installing and removing accessories, before adjusting
or changing set-ups or when making repairs. Be sure the trigger switch is in the OFF
position. An accidental start-up can causeinjury.
Your mitre saw was accurately adjusted at the factory. If readjustment due to shipping and
handling or any other reason is required, follow the steps below to adjust your saw. Once
made, these adjustments should remainaccurate.
Adjusting the Traverse Bars for Constant Cutting Depth
(Fig. A, B, J, L)
The blade must run at a constant cutting depth along the full length of the table and must not
touch the fixed table at the rear of the slot or at the front of the rotating arm. To achieve this,
the traverse arms must be perfectly parallel to the table when the saw head is fullydepressed.
1. Press the lower guard lock up release lever2 (Fig.A).
Package Contents
The packagecontains:
1 Partly assembled machine
2 Hex key 4/6mm
1 216mm TCT saw blade
1 Material clamp
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.
Description (Fig. A, B, G, H)
WARNING: Never modify the power tool or any part of it. Damage or personal injury
couldresult.
1 On/off switch
2 Guard lock up release lever
3 Carrying handle
4 Fixed upper guard
5 Outer flange
6 Blade bolt
7 Lower blade guard
8 Saw blade
9 Sliding fence lock knob
10 Fixed table
11 kerf plate
12 Mitre arm
13 Mitre latch
14 Rotating table/mitre arm
15 Mitre scale
16 Sliding fence
17 Material clamp
18 Traverse lock
19 Guard lock up hook
20 Bevel clamp handle
21 Bevel scale
22 Bench mounting holes
23 Lock down button
24 Traverse bars
25 Saw head
26 Hex keys (Fig. G)
27 Cable clamp
28 Cable
29 Speed control dial (DWS771 only)
30 Padlock hole
31 Override button
32 Carrying handle (left and right)
33 Inner flange (Fig. H)
34 Dust extraction nozzle
Optional accessories (Fig.A,C–E, K)
35 Table end plate
36 Support guide rails
37 Material support plate
38 Swivelling stop
39 Adjustable stand 760mm (max. height)
40 Legstand
41 Length stop for short workpieces (to be
used with guide rails35 )
42 Roller table
43 Twist-lock quick connector
Intended Use
Your DeWALT Cross-Cut Mitre Saw has been designed for professional cutting wood, wood
products and plastics. 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 216mm carbide tipblade.
DO NOT use under wet conditions or in presence of flammable liquids orgases.
These miter 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.
• 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.
Electrical Safety
The electric motor has been designed for one voltage only. Always check that the power
supply corresponds to the voltage on the ratingplate.
Your tool is double insulated in accordance with EN61029; therefore no earth wire
isrequired.
In case of cord replacement the tool must only be repaired by an authorized service agent or
by qualifiedelectrician.
The following cords aremandatory:
DW770 / DW770GP: H05RN-F, 2x1.0mm²
DW770 LX / DW770GP LX: H05RR-F, 2x1.5mm²
DWS777 / DWS771: H05RN-F, 2x1.0mm²
DWS777 LX / DWS771 LX: H05RR-F, 2x1.5mm²
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: 13A.

ENGLISH
9
WARNING: To reduce the risk of injury, turn unit off and disconnect machine
from power source before installing and removing accessories, before adjusting
or changing set-ups or when making repairs. Be sure the trigger switch is in the OFF
position. An accidental
start-up can causeinjury.
The attention of UK users is drawn to the “woodworking machines regulations 1974” and any
subsequentamendments.
Ensure the machine is placed to satisfy your ergonomic conditions in terms of table height
and stability. The machine site shall be chosen so that the operator has a good overview and
enough free surrounding space around the machine that allows handling of the workpiece
without anyrestrictions.
To reduce effects of increased vibration, make sure the environment is not too cold, the
machine and accessory are well maintained and the workpiece size is suitable for thismachine.
Switching On and Off (Fig. A)
A hole30 is provided in the on/off switch1 for insertion of a padlock to lock thetool.
1. To run the tool, press the on/off switch1 .
2. To stop the tool, release theswitch.
Use of XPS™ LED Worklight System (Fig. A, V)
NOTE: The mitre saw must be connected to a powersource.
The XPS™ LED Worklight System is operated with an push button switch, fitted on the handle
under the black plastic lever. The XPS™ LED Worklight System is independent of the mitre
saw’s triggerswitch.
To cut through an existing pencil line on a piece ofwood:
1. Push the black plastic lever, then pull down on the operating handle3 to bring the saw
blade8 close to the wood. The shadow of the blade will appear on thewood.
2. Align the pencil line with the edge of the blade’s shadow. You may have to adjust the
mitre or bevel angles in order to match the pencil lineexactly.
Speed Control Dial (DWS771 only)
The speed control dial29 can be used for advance setting of the required range ofspeed.
Turn the speed control dial29 to the desired range, which is indicated by a number (1–5).
• Use high speeds for sawing soft materials such aswood.
• Use low speeds for sawinghardwood.
Body and Hand Position
Proper positioning of your body and hands when operating the mitre saw will make cutting
easier, more accurate andsafer.
WARNING:
• Never place your hands near the cuttingarea.
• Place your hands no closer than 150mm from theblade.
• Hold the workpiece tightly to the table and the fence when cutting. Keep your hands
in position until the switch has been released and the blade has completelystopped.
• Always make dry runs (without power) before finish
cuts so that you can check the path of theblade.
• Do not cross yourhands.
• Keep both feet firmly on the floor and maintain properbalance.
• As you move the saw arm left and right, follow it and stand slightly to the side of the
sawblade.
Basic Saw Cuts
Vertical straight cross cut (Fig. A, S)
NOTE: Use 216mm saw blades with 30mm arbor holes to obtain the desired
cuttingcapacities.
1. Slacken the mitre latch13 and subsequently lift itup.
2. Engage the mitre latch13 at the 0° position and fasten the mitrelatch.
3. Place the wood to be cut against the fence16 .
4. Take hold of the carrying handle3 and press the guard lock up release lever2 to release
the guard. Press the trigger switch1 to start the motor. It is recommended to start the cut
near thefence.
5. Depress the head to allow the blade to cut through the timber and enter the plastic
kerfplate11 .
6. When the head is fully depressed, slowly pull it across to complete thecut.
7. After completing the cut, release the switch and wait for the saw blade to come to a
complete standstill before returning the head to its upper restposition.
WARNING:
• For some types of plastic profiles, it is advisable to follow the sequence in reverseorder.
• The lower blade guard is designed to close quickly
when the lever2 is released. If it does not close within
1 second, have the saw serviced by an authorized DeWALT repairagent.
Vertical mitre cross-cut (Fig. A, T)
1. Squeeze the mitre latch13 . Move the arm left or right to the requiredangle.
2. The mitre latch will automatically locate at 0°, 15°, 22.5°, 31.62°, 45° and 50° both left and
right. If any intermediate angle is required hold the head firmly and lock by fastening the
mitrelatch.
3. Always ensure that the mitre lock lever is locked tightly beforecutting.
4. Proceed as for a vertical straight cross-cut.
2. Press the saw head fully to the rear position and measure the height from the rotating
table14 to the bottom of the outer flange5 (Fig.J).
3. Turn the saw head traverse lock18 (Fig.B).
4. Keeping the saw head fully depressed, pull the head to the end of itstravel.
5. Measure the height indicated in figureK again. Both values should beidentical.
6. If adjustment is required, proceed as follows (Fig.L):
a. Loosen the locknut46 in the bracket47 under the upper dust extraction nozzle37
and adjust the screw48 as required, proceeding in smallsteps.
b. Tighten the locknut46 .
WARNING: Always check that the blade does not touch the table at the rear of the slot or
at the front of the rotating arm at 90° vertical and 45° bevel positions. Do not switch on
before having checked this!
Adjusting the Fence (Fig. M)
Turn the sliding fence lock knob9 anti-clockwise to loosen. Move the sliding fence16 to a
position that avoids the blade cuts it,then tighten the fence lock knob by turningclockwise.
Checking and Adjusting the Blade to the Fence (Fig. B, N, O, Q)
1. Slacken the mitre latch13 .
2. Place your thumb on the mitre arm12 and squeeze the mitre latch13 to release the
rotating table/mitre arm14 .
3. Swing the mitre arm until the latch locates it at the 0° mitreposition.
4. Pull down the head and lock it in this position using the lock down button23 .
5. Check that the two 0° markings49 on the mitre scale15 are justvisible.
6. Place a square50 against the left side of the fence16 and blade8 .
WARNING: Do not touch the tips of the blade teeth with thesquare.
7. If adjustment is required, proceed asfollows:
a. Loosen the screws51 and move the scale/mitre arm assembly left or right until the
blade is at 90° to the fence as measured with the square (Fig.N).
b. Retighten the screws51 .
Checking and Adjusting the Blade to the Table (Fig. P–R)
1. Loosen the bevel clamp handle20 (Fig.P).
2. Press the saw head to the right to ensure it is fully vertical and tighten the bevel
clamphandle.
3. Place a set square50 on the table and up against the blade8 (Fig.Q).
WARNING: Do not touch the tips of the blade teeth with thesquare.
4. If adjustment is required, proceed asfollows:
a. Loosen the bevel clamp handle20 and turn the vertical position adjustment stop
screw52 in or out until the blade is at 90° to the table as measured with thesquare.
b. If the bevel pointer53 does not indicate zero on the bevel scale21 , loosen the
screws54 that secure the scale and move the scale asnecessary.
Checking and Adjusting the Bevel Angle
(Fig. A, P, R)
The bevel override allows the max. bevel angle to be set at 45° or 48° asrequired.
• Left = 45°
• Right = 48°
1. Make sure the override knob55 is located in the leftposition.
2. Loosen the bevel clamp handle20 and move the saw head to theleft.
3. This is the 45° bevelposition.
4. If adjustment is required, turn the stopscrew56 in or out as necessary until the
pointer53 indicates 45°.
WARNING: The guide grooves can become clogged with sawdust. Use a stick or some
low pressure air to clear the guidegrooves.
Prior to Operation
WARNING:
• Install the appropriate saw blade. Do not use excessively worn blades. The maximum
rotation speed of the tool must not exceed that of thesawblade.
• Do not attempt to cut excessively smallpieces.
• Allow the blade to cut freely. Do notforce.
• Allow the motor to reach full speed beforecutting.
• Make sure all locking knobs and clamp handles aretight.
• Secure theworkpiece.
• Although this saw will cut wood and many nonferrous materials,these operating
instructions refer to the cutting of wood only. The sameguide-lines apply to the other
materials. Do not cut ferrous (iron and steel) materials or masonry with this saw! Do
not use any abrasive discs!
• Make sure to use the kerf plate. Do not operate the machine if the kerf slot is wider
than 10mm.
• Placing the workpiece on a piece of wood will increase the capacities to 300mm.
OPERATION
Instructions for Use
WARNING: Always observe the safety instructions and applicableregulations.

ENGLISH
10
Always try cuts on a few scrap pieces of wood
to verify the settings on thesaw.
WARNING: Never exceed the compound mitre limits of 45° bevel with 45° left or
rightmitre.
Support for Short and Long Pieces (Fig. C, D)
Cutting Short Material
It is advisable to use the length stop41 for short workpieces both for batch sawing and
for short individual workpieces of different lengths. The length stop can only be used in
conjunction with a pair of optional guide rails35 .
Cutting Large Material
WARNING: To reduce the risk of injury, always support longworkpieces.
Figure C shows the ideal configuration for sawing long workpieces when the saw is used free-
standing (all items available as an option).
These items (except the legstand and the material clamp) are required both on the infeed and
the outfeedside:
-Legstand40 (supplied with mounting instructions).
-Guide rails (500 or 1,000mm)35 .
-Stands39 to support the guide rails. Do not use the stands to support the machine!
The height of the stands isadjustable.
-Material support plates36 .
-Table end plate34 for supporting the rails (also when working on an existing bench).
-Material clamp17 .
-Swivelling stop38 .
1. Place your saw on the legstand and fit the guiderails.
2. Firmly screw the material support plates36 to the guide rails35 .
3. The material clamp17 now functions as a lengthstop.
4. Install the table end plates34 .
5. Install the swivelling stop38 to the rearrail.
6. Use the swivelling stop38 to adjust the length of medium and long workpieces. It can be
adjusted sideways or swung out of the way when not inuse.
Dust Extraction (Fig. A, K)
WARNING: Whenever possible, connect a dust extraction device designed in accordance
with the relevant regulations regarding dustemission.
Connect a dust collection device designed in accordance with the relevant regulations. The air
velocity of externally connected systems shall be 20m/s +/- 2 m/s. Velocity to be measured in
the connection tube at the point of connection, with the tool connected but notrunning.
NOTE: The DWV9000 twist-lock quick connector43 is recommended as an optional
accessory to connect to the dust extractiondevice.
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 carcinogenic, use a
special vacuum cleaner.
Transporting (Fig. A, B)
WARNING: In order to conveniently carry the mitre saw, the base is provided with two
hand indentations32 . Never use guards to lift or transport the mitresaw.
1. To transport the saw, set the bevel and mitre positions to 0°.
2. Press the lower guard lock up release lever2 (Fig.A).
3. Press the head down and press the lock down button23 (Fig.B).
4. Bring the saw blade to rest position and press the traverse lock18 .
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 injury, turn unit off and disconnect machine
from power source before installing and removing accessories, before adjusting
or changing set-ups or when making repairs. Be sure the trigger switch is in the OFF
position. An accidental
start-up can causeinjury.
WARNING: If the saw blade is worn replace it with a new sharpblade.
Lubrication
Your power tool requires no additionallubrication.
WARNING: When mitring the end of a piece of wood
with a small off-cut, position the wood to ensure that the off-cut is to the side of the blade
with the greater angle to the fence, i.e.:
• left mitre, off-cut to the right
• right mitre, off-cut to the left
Bevel cross-cuts (Fig. P, U)
Bevel angles can be set from 0° to 48° to the left. Bevels up to 45° can be cut with the mitre
arm set between zero and a maximum of 45° mitre position right orleft.
1. Loosen the bevel clamp handle20 and set the bevel asdesired.
2. Set the override button31 ifrequired.
3. Hold the head firmly and do not allow it tofall.
4. Tighten the bevel clamp handle20 firmly.
5. Proceed as for a vertical straight cross-cut.
Quality of Cut
The smoothness of any cut depends on a number of variables, i.e. the material being cut.
When smoothest cuts are desired for moulding andother precision work, a sharp (60-tooth
carbide) blade and a slower, even cutting rate will produce the desiredresults.
WARNING: Ensure that the material does not creep while cutting; clamp it securely
in place. Always let the blade come to a full stop before raising the arm. If small fibres
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.
Clamping the Workpiece (Fig. C, X)
WARNING: Always use a materialclamp.
For best results use the material clamp17 made for use with yoursaw.
To Install clamp
1. Insert it into the hole behind the fence. The clamp17 should be facing toward the back
of the mitre saw. Ensure the groove on the clamp rod is fully inserted into the base of the
mitre saw. If the groove is visible, the clamp will not besecure.
2. Rotate the clamp 180º toward the front of the mitresaw.
3. Loosen the knob to adjust the clamp up or down, then use the fine adjust knob to firmly
clamp theworkpiece.
NOTE: Place the clamp on the right 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.
Compound Mitre (Fig. W)
This cut is a combination of a mitre and a bevel cut. This is the type of cut used to make frames
or boxes with slanting sides like the one shown in figureW.
WARNING: If the cutting angle varies from cut to cut, check that the bevel clamp handle
and the mitre clamping knob are securely tightened. These must be tightened 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.
• To use the chart, select the desired angle “A” (Fig.W) 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.
0510 15 20 25 30 35 40 45
0510 15 20 25 30 35 40 45
5
10
15
20
25
30
35
40
45
5
10
15
20
25
30
35
40
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
5
10
15
20
25
30
35
40
45
50
55
60
65
70
75
80
85
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
1. Set your saw to the prescribed angles and make a few trialcuts.
2. Practice fitting the cut piecestogether.
Example: To make a four-sided box with 25° exterior angles (angle “A”) (Fig.W), use
the upper right arc. Find 25° on the arc scale. Follow the horizontal intersecting line to
either side to get the mitre angle setting on the saw (23°). Likewise follow the vertical
intersecting line to the top or bottom to get the bevel angle setting on the saw (40°).

ENGLISH
11
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 Mounting the
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.
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.
Using the Roller Table (Fig. C–E)
The roller table42 makes the handling of large and long pieces of wood very easy (Fig.E). It
can be connected either to the left or to the right of the machine. The roller table requires the
use of the optional legstand (Fig.C).
WARNING: Assemble the roller table following the instructions supplied with
thelegstand.
• Replace the short support bars provided with the legstand with the irregular rails from the
table on the side the table is to beused.
• Follow all instructions provided with the rollertable.
Range of saw blades available (recommended blades)
Type of blade Blade dimensions
(diameter x bore x no. of teeth)
Usage
DT4310 series 40 216x30x24 For general purpose, ripping and cross-cutting of wood and
plastics
DT4286 series 40 216x30x80 TCG for use with aluminum
DT4320 series 60 216x30x48 ATB for fine cutting of manmade and natural wood
DT4350 series 60 216x30x60 TCG for extra fine cutting of manmade and natural wood
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.