DWS778 | DeWalt DWS778 MITRE SAW Type 2 instruction manual

DWS778
Final Page Size: 172 x 240 mm
English (original instructions)6
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DE7023
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English
CROSS-CUT MITRE SAW
DWS778
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
DWS778
QS/GB LX
Voltage
V
230 115
(U.K. & Ireland only)
V
230
115
Type
2
2
Power input
W
1850
1650
Blade diameter
mm
250
250
Blade bore
mm
30
30
Max. blade speed
min-1 4300 4100
Cutting depth
mm
85
85
Max. blade thickness
mm
1.75 1.75
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 85 x 305
mitre 45° mm 85 x 215
mitre 48° mm
85 x 204
bevel 45° mm
58 x 305
bevel 48° mm
54 x 305
Overall dimensions mm 465 x 615 x 390
Weight
kg17.2
Noise values and vibration values (triax vector sum) according to EN61029
LPA(emission sound pressure level)
dB(A)
94
94
LWA(sound power level)
dB(A)
107
107
K(uncertainty for the given
sound level)
dB(A)
3.0
3.0
Vibration emission value ah =
Uncertainty K =
m/s
m/s2
2.4
1.5
2.4
1.5
2
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
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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
U.K. & Ireland
230 V tools
230 V tools
10 Amperes, mains
13 Amperes, in plugs
NOTE: This device is intended for the connection to a power
supply system with maximum permissible system impedance
Zmax of
0.25 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.
Denotes risk of electric shock.
Denotes risk of fire.
Denotes sharp edges.
EC-Declaration of Conformity
MACHINERY DIRECTIVE
CROSS-CUT MITRE SAW
DWS778
DeWALT declares that these products described under Technical
Data are in compliance with:
2006/42/EC, EN61029-1:2009 +A.11:2010, EN61029-2-11:2012
+A11:2013.
English
These products also comply with Directive 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.
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 heatresistant apron. Wear ear protection at all times. Wear a
safety helmet at all times.
10. Connect dust extraction equipment.
Markus Rompel
Director Engineering
DeWALT, Richard-Klinger-Straße 11,
D-65510, Idstein, Germany
20.04.2016
Safety Instructions
W
ARNING! 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 ALL WARNINGS AND INSTRUCTIONS
FOR FUTURE REFERENCE
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.
13. Do not overreach.
Keep proper footing and balance at all times.
14. Maintain tools with care.
1.Keep work area clear.
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.
Cluttered areas and benches invite injuries.
15. Disconnect tools.
2.Consider work area environment.
When not in use, before servicing and when changing
accessories such as blades, bits and cutters, disconnect
tools from the power supply.
General Safety Rules
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.
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) earthleakage 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.
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.
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English
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.
• 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.
21. Have your tool repaired by a qualified person.
• Replace the kerf plate when worn.
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.
• Disconnect the machine from the mains before carrying out
any maintenance work or when changing the blade.
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, wellmaintained and free of loose materials, e.g., chips and cutoffs.
• 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 a laser or LED, no exchange with a different
type of laser is permitted. Repairs shall only be carried out by
the laser 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:
-–type of material to be machined (chip board produces
more dust than wood);
-–sharpness of the saw blade;
-–correct adjustment of the saw blade;
-–dust extractor with air velocity not less than 20 m/s.
• Select the correct blade for the material to be cut.
Ensure that the local extraction as well as hoods, baffles and
chutes are properly adjusted.
• Use correctly sharpened saw blades. Observe the maximum
speed mark on the saw blade.
• Please be aware of the following factors influencing exposure
to noise:
• Make sure all locking knobs and clamp handles are tight
before starting any operation.
-–use saw blades designed to reduce the emitted noise;
• Never place either hand in the blade area when the saw is
connected to the electrical power source.
• Machine maintenance shall be conducted periodically.
• Never attempt to stop a machine in motion rapidly by
jamming a tool or other means against the blade; serious
accidents can occur.
• Ensure the operator is adequately trained in the use,
adjustment and operation of the machine.
• 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 EN 847-1.
• 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
the guard lock-up release lever (B) is pushed.
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-–use only well sharpened saw blades.
• Provide adequate general or localized lighting.
• 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:
– Height 85 mm by width 305 mm by length 400 mm;
– Longer workpieces need to be supported by suitable
additional table, e.g. DE7023. Always clamp the
workpiece safely to the saw table.
• 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.
English
ARNING: We recommend the use of a residual
W
current device with a residual current rating of 30mA
or less.
Description (Fig. 1, 2, 7, 11, 12)
WARNING: Never modify the power tool or any part
of it. Damage or personal injury could result.
Residual Risks
A. Trigger switch
The following risks are inherent to the use of saws:
B. Guard lock-up release lever
– injuries caused by touching the rotating parts.
C. Operating handle
In spite of the application of the relevant safety regulations and
the implementation of safety devices, certain residual risks cannot
be avoided. These are:
D. Fixed upper guard
– 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.
E. Outer flange
F. Blade bolt
G. Lower blade guard
H. Saw blade
I. Sliding fence lock lever (Fig. 11)
J. Fixed table
K. Kerf plate
L. Mitre arm
The following factors increase the risk of breathing problems:
M. Mitre latch
– No dust extractor connected when sawing wood.
N. Rotating table/mitre arm
– Insufficient dust extraction caused by uncleaned exhaust
filters.
O. Mitre scale
Markings on Tool
Q. Sliding fence
The following pictograms are shown on the tool:
Read instruction manual before use
P. Mitre scale screws (Fig. 12)
R. Dust extraction nozzle
S. Traverse lock
T. Bevel clamp handle
U. Bevel scale
Wear ear protection
Wear eye protection
V. Bench mounting holes
W. Lock-down button
X. Traverse bars
Y. Saw head
Z. Hex keys
AA. Cable clamp
Carrying point
BB. Padlock hole
Keep hands away from blade
DD. Carrying indentations (left and right)
EE. Inner flange (Fig. 7)
DATE CODE POSITION (FIG. 2)
The Date Code (V V), which also includes the year of
manufacture, is printed into the housing.
Example:
CC. Override button
2016 XX XX
Year of Manufacture
Package Contents
The package contains:
1 Partly assembled cross-cut mitre saw
2 Hex keys 4/6 mm
1 250 mm TCT saw blade
1 Material clamp
FF. Material clamp
GG. XPSTM Worklight on/off switch
HH. XPSTM Worklight
II. Twist lock connector (DWV9000, optional accessory)
INTENDED USE
Your DeWALT Cross-Cut Mitre Saw has been designed for
professional cutting of wood, wood products, plastics and
aluminium. It performs the sawing operations of cross-cutting,
bevelling and mitring easily, accurately and safely.
When assembled with a suitable saw blade, this machine
is designed for cutting aluminium profiles up to a maximum
thickness of 4.0 mm. NEVER cut magnesium.
1 Instruction manual
This unit is designed for use with a nominal blade diameter
250 mm carbide tip blade.
• Check for damage to the tool, parts or accessories which
may have occurred during transport.
DO NOT use under wet conditions or in presence of flammable
liquids or gases.
• Take the time to thoroughly read and understand this manual
prior to operation.
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.
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English
•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.
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.
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! Do not use the machine for purposes
other than intended.
WARNING: 115 V units have to be operated via a
fail-safe isolating transformer with an earth screen
between the primary and secondary winding.
If the supply cord is damaged, it must be replaced by a specially
prepared cord available through the DeWALT service organisation.
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:
DWS778:
H05RN-F, 2x1.0 mm²
DWS778 LX: H05RR-F, 2x1.5 mm²
Mains Plug Replacement
(U.K. & Ireland Only)
Unpacking
The motor and guards are already assembled onto the base.
Bench Mounting (Fig. 2)
1.Holes (V) 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. 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. 2, 6–8)
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.:
DT4282 is suggested.
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.
Fitting a Mains Plug to 115 V Units
(U.K. and Ireland Only)
• The plug fitted should be comply with BS EN 60309
(BS4343), 16 Amps, earthing contact position 4h.
WARNING: Always ensure that the cable clamp (AA)
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
10
WARNING: To reduce the risk of injury, turn unit
off and disconnect machine from power source
before installing and removing accessories,
IMPORTANT: The saw head (Y) must be in its highest position to
install a new blade.
1.To raise the saw head (Y) to its highest position, push down
on the saw head (Y) and pull out the lock-down button (W).
2.Release the downward pressure and allow the saw head to
rise to its full height.
3.Insert the 6 mm hex key (Z) deeply into the spindle lock (UU),
found opposite the blade shaft, and hold it (Fig. 6, 8).
4.Insert the other 6 mm hex key (Z) into the blade bolt (F) and
loosen it by turning clockwise. Remove the blade bolt (F) and
the outer flange (E).
5.Press the lower guard lock-up release lever (B) to raise the
lower blade guard (G) and remove the saw blade (H).
6.Install the new saw blade onto the shoulder provided on the
inner flange (EE) (Fig. 7) making sure that the teeth at the
bottom edge of the blade are pointing towards the fence
(away from the operator).
7.Replace the outer flange (E), making sure that the location
lugs (JJ) are engaged correctly, one on each side of the
motor shaft.
English
8.Insert the blade bolt (F) and tighten it with the 6 mm hex key
(Z) by turning anti-clockwise while holding the 6 mm hex key
(Z) engaged with your other hand (Fig. 8).
9.Remove the two hex keys (Z) and fit them back into their
holder.
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.
5.Check that the two 0° markings (NN) on the mitre scale (O)
are just visible.
6.Place a square (OO) against the left side of the fence (Q) and
blade (H).
WARNING: Do not touch the tips of the blade teeth
with the square.
7.If adjustment is required, proceed as follows:
A.Loosen the mitre scale screws (P) (Fig. 12) and move
the scale/mitre arm assembly left or right until the blade
is at 90° to the fence as measured with the square (OO)
(Fig. 13).
B.Retighten the mitre scale screws (P).
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.
Checking and Adjusting the Blade to the Table
(Fig. 2, 14–16)
Adjusting the Traverse Bars for Constant
Cutting Depth (Fig. 1, 2, 9, 10)
2.Press the saw head (Y) to the right to ensure it is fully vertical
and tighten the bevel clamp handle.
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 bars (X) must be perfectly parallel to the table when the
saw head (Y) is fully depressed.
1.Press the lower guard lock-up release lever (B) (Fig. 1).
2.Press the saw head fully to the rear position and measure the
height from the rotating table (N) to the bottom of the outer
flange (E) (Fig. 10).
3.Turn the saw head traverse lock (S) (Fig. 2).
4.Keeping the saw head fully depressed, pull the head to the
end of its travel.
5.Measure the height indicated in Figure 10 again. Both values
should be identical.
6.If adjustment is required, proceed as follows (Fig. 9):
A.Loosen the locknut (KK) in the bracket (LL) under the
upper dust extraction nozzle (R) (Fig. 1) and adjust the
screw (MM) as required, proceeding in small steps.
B.Tighten the locknut (KK).
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. 11)
1.Loosen the bevel clamp handle (T) (Fig. 14).
3.Place a square (OO) on the table and up against the saw
blade (H) (Fig. 15).
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 (T) and using a hex key
(Z), turn the vertical position adjustment stop screw (QQ)
in or out until the blade is at 90° to the table as measured
with the square.
B.If the bevel pointer (RR) does not indicate zero on the
bevel scale (U), loosen the bevel scale screws (PP) that
secure the scale and move the scale as necessary.
Checking and Adjusting the Bevel Angle
(Fig. 2, 14, 16)
The bevel override allows the maximum bevel angle to be set at
45° or 48° as required.
1.Make sure the override knob (SS) is located in the left
position.
2.Loosen the bevel clamp handle (T).
3.Standing in front of the machine, move the saw head (Y) to
the left.
4.This is the 45° bevel position.
5.If adjustment is required, turn the 45° bevel adjustment stop
screw (TT) using a 4 mm hex key (Z), in or out as necessary
until the bevel pointer (RR) indicates 45°.
WARNING: The guide grooves can become clogged
with sawdust. Use a stick or some low pressure air to
clear the guide grooves.
Lift the sliding fence lock lever (I) anti-clockwise to loosen. Move
the sliding fence (Q) to a position that avoids the blade, then
tighten the fence lock lever by turning clockwise.
Checking and Adjusting the Blade to the
Fence (Fig. 2, 12, 13)
Prior to Operation
WARNING:
1.Slacken the mitre latch (M).
3.Swing the mitre arm until the latch locates it at the 0° mitre
position.
• 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.
• Do not attempt to cut excessively small pieces.
4.Pull down the head and lock it in this position using the lockdown button (W).
• Allow the blade to cut freely. Do not force.
• Allow the motor to reach full speed before cutting.
2.Place your thumb on the mitre arm (L) and squeeze the mitre
latch (M) to release the rotating table/mitre arm (N).
11
English
• Make sure all locking knobs and clamp handles are
tight.
• Place your hands no closer than 150 mm from the
blade.
• Secure the workpiece.
• 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 or masonry with this saw!
Do not use any abrasive discs!
• 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.
• Make sure to use the kerf plate. Do not operate the
machine if the kerf slot is wider than 10 mm.
OPERATION
Instructions for Use
WARNING: Always observe the safety instructions
and applicable regulations.
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.
Basic Saw Cuts
VERTICAL STRAIGHT CROSS-CUT (FIG. 1, 2, 17)
NOTE: Use 250 mm saw blades with 30 mm arbor holes to
obtain the desired cutting capacities.
1.Raise the saw head (Y) to its highest position by pushing
down on the saw head (Y) and pulling out the lock-down
button (W). Release the downward pressure and allow the
saw head to rise to its full height.
2.Squeeze the mitre latch (M) then move the arm to the 0°
position.
3.Release the mitre latch.
4.Always ensure that the mitre latch is locked tightly before
cutting.
5.Place the wood to be cut against the sliding fence (Q) and
secure it with the material clamp (FF).
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.
6.Take hold of the operating handle (C) and press the guard
lock-up release lever (B) to release the guard. Press the
trigger switch (A) to start the motor. It is recommended to
start the cut near the fence.
Switching On and Off (Fig. 1)
7.Depress the head to allow the blade to cut through the
timber and enter the plastic kerf plate (K).
A hole (BB) is provided in the trigger switch (A) for insertion of a
padlock to lock the tool.
1.To run the tool, press the trigger switch (A).
2.To stop the tool, release the switch.
Use of XPS LED Worklight System (Fig. 1)
TM
NOTE: The mitre saw must be connected to a power source.
The XPSTM LED Worklight System (HH) is equipped with an on/off
switch (GG). The XPSTM LED Worklight System is independent of
the mitre saw’s trigger switch. The light does not need to be on in
order to operate the saw.
To cut through an existing pencil line on a piece of wood:
1.Turn on the XPSTM system, then pull down on the operating
handle (C) to bring the saw blade (H) close to the wood. The
shadow of the blade will appear on the wood.
8.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 (B) is released. If it does not, have
the saw serviced by an authorized DeWALT repair
agent.
PERFORMING A SLIDING CUT (FIG. 1, 2, 18)
1.Turn the saw head traverse lock (S) to loosen.
2.Push down the saw head (Y), pull out the lock-down button
(W) and let the saw head rise to it’s highest position.
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.
3.Place the wood to be cut against the sliding fence (Q) and
secure it with the material clamp (FF).
Body and Hand Position
5.Press the guard lock-up release lever (B) to release the
guard. Press the trigger switch (A) to start the motor.
Proper positioning of your body and hands when operating the
mitre saw will make cutting easier, more accurate and safer.
6.Totally depress the head to allow the blade to cut through the
timber and push the head back to complete the cut.
WARNING:
• Never place your hands near the cutting area.
12
4.Lower the saw head then pull it to the end of its travel.
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.
English
WARNING: Remember to lock the saw head in the
rear position when the sliding cuts are finished.
VERTICAL MITRE CROSS-CUT (FIG. 1, 19)
1.Squeeze the mitre latch (M). 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 latch is locked tightly before
cutting.
4.Proceed as for a vertical straight cross-cut.
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. 11, 14, 20)
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.Unlock the sliding fence lever (I) and move the fence away
from the blade.
2.Loosen the bevel clamp handle (T) and set the bevel as
desired.
Clamping the Workpiece (Fig. 23–25)
WARNING: Always use a material clamp.
For best results use the material clamp (FF) made for use with
your saw.
Always use a material clamp when cutting non-ferrous metals.
Make sure that the workpiece is clamped securely.
TO INSTALL CLAMP
1.Insert it into the hole behind the fence. The clamp (FF)
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. 21, 22)
3.Set the override button (CC) if required.
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 21.
4.Hold the head firmly and do not allow it to fall.
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.
WARNING: The saw must be fixed on a base
support when performing compound cuts to prevent
tip over (Fig. 22). Refer to Bench Mounting.
5.Tighten the bevel clamp handle (T) firmly.
6.Slide the fence towards the blade making sure it does not
touch the blade, then tighten the fence lock lever by turning
clockwise.
7.Proceed as for a vertical straight cross-cut.
Cutting Non-Ferrous Metals
• The chart shown below will assist you in selecting the proper
bevel and mitre settings for common compound mitre cuts.
When cutting non-ferrous metals, the machine is only to be used
to perform vertical straight and mitre cross-cuts in the mitre saw
mode. We recommend that bevel and compound mitre cuts
should not be performed in non-ferrous metals. The machine is
not to be used for cutting ferrous metals.
• To use the chart, select the desired angle “A” (Fig. 21) 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.
40
25
30
35
40
45
SQUARE BOX
65
80
20
50
55
60
40
45
35
40
6 SIDED BOX
30
65
75
30
35
70
80
85
30
25
50
45
70
55
35
50
45
15
15
30
40
15
25
35
10
20
20
40
60
20
25
65
85
55
60
25
80
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.
15
35
75
SET THIS MITER ANGLE ON SAW
The smoothness of any cut depends on a number of variables,
i.e., the material being cut. When smoothest cuts are desired for
moulding and other precision work, a sharp (60-tooth carbide)
blade and a slower, even cutting rate will produce the desired
results.
10
30
8 SIDED BOX
20
25
15
10
5
5
5
10
15
20
5
5
10
0
10
15
20
5
10
ANGLE OF SIDE OF BOX (ANGLE"A")
•When using lubricants, only apply wax or separation spray.
Do not use emulsions or similar fluids.
5
75
•Only apply saw blades that are qualified for cutting nonferrous metals.
0
70
45
85
•Always use a material clamp when cutting non-ferrous
metals. Make sure that the workpiece is clamped securely.
25
30
35
40
45
SET THIS BEVEL ANGLE ON SAW
13
English
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. 21), 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°). 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.
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.
NOTE: The DWV9000 twist-lock quick connector (II) is
recommended as an optional accessory to connect to the dust
extraction device.
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.
Transporting (Fig. 1, 2)
Optional Accessories
`
Dust Extraction (Fig. 1, 3, 4)
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 20 m/s +/- 2 m/s. Velocity to be measured
in the connection tube at the point of connection, with the tool
connected but not running.
WARNING: In order to conveniently carry the mitre
saw, the base is provided with two hand indentations
(DD). Never use guards to lift or transport the mitre
saw.
1.To transport the saw, set the bevel and mitre positions to 0°.
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.
2.Press the lower guard lock-up release lever (B) (Fig.1).
SUPPORT FOR LONG PIECES (FIG. 5)
3.Press the saw head down and push in the lock-down button
(W) (Fig. 2).
• Always support long pieces.
4.Bring the saw head to rest position and tighten the traverse
lock (S).
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.
• For best results, use the extension work support (DE7023) to
extend the table width of your saw (available from your dealer
as an option). Support long workpieces using any convenient
means such as saw-horses or similar devices to keep the
ends from dropping.
RANGE OF SAW BLADES AVAILABLE (RECOMMENDED BLADES)
Type of blade
Blade dimensions
DT1158 series 30 250 mm
DT4282 series 40 250 mm
DT4226 series 40 250 mm
DT4287 series 40
250 mm
DT4282 series 40
250 mm
Usage
For general purpose, ripping and
cross-cutting of wood and
plastics
TCG for use with aluminum
ATB for fine cutting of
manmade and natural wood
TCG for extra fine cutting of
manmade and natural wood
Aluminium cutting
Consult your dealer for further information on the appropriate
accessories.
Lubrication
Your power tool requires no additional lubrication.
14
English
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.
15
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: 32 15 47 37 99
www.dewalt.be
enduser.BE@SBDinc.com
Danmark
DeWALT
Roskildevej 22
2620 Albertslund
Tel: 70 20 15 10
Fax: 70 22 49 10
www.dewalt.dk
kundeservice.dk@sbdinc.com
Deutschland
DeWALT
Richard Klinger Str. 11
65510 Idstein
Tel:06126-21-1
Fax:06126-21-2770
www.dewalt.de
infodwge@sbdinc.com
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
Greece.Service@sbdinc.com
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: 934 797 400
Fax: 934 797 419
www.dewalt.es
respuesta.postventa@sbdinc.com
France
DeWALT
5, allée des Hêtres
BP 30084, 69579 Limonest Cedex
Tel: 04 72 20 39 20
Fax: 04 72 20 39 00
www.dewalt.fr
scufr@sbdinc.com
Schweiz
Suisse
Svizzera
DeWALT
In der Luberzen 42
8902 Urdorf
Tel: 044 - 755 60 70
Fax: 044 - 730 70 67
www.dewalt.ch
service@rofoag.ch
Ireland
DeWALT
Calpe House Rock Hill
Black Rock, Co. Dublin
Tel:00353-2781800
Fax:00353-2781811
www.dewalt.ie
Italia
DeWALT
via Energypark
20871 Vimercate (MB), IT
Tel: 800-014353
39 039 9590200
Fax: 39 039 9590313
www.dewalt.it
Nederlands
DeWALT Netherlands BV
Holtum Noordweg 35
6121 RE BORN, Postbus 83, 6120 AB BORN
Tel: 31 164 283 063
Fax: 31 164 283 200
www.dewalt.nl
Norge
DeWALT
Postboks 4613, Nydalen
0405 Oslo
Tel: 45 25 13 00
Fax: 45 25 08 00
www.dewalt.no
kundeservice.no@sbdinc.com
Österreich
DeWALT
Werkzeug Vertriebsges m.b.H
Oberlaaerstrasse 248, A-1230 Wien
Tel: 01 - 66116 - 0
Fax: 01 - 66116 - 614
www.dewalt.at
service.austria@sbdinc.com
Portugal
DeWALT Limited, SARL
Centro de Escritórios de Sintra Avenida
Almirante Gago Coutinho, 132/134, Edifício 14
2710-418 Sintra
Tel: 214 66 75 00
Fax: 214 66 75 80
www.dewalt.pt
resposta.posvenda@sbdinc.com
Suomi
DeWALT
PL 47
00521 Helsinki
Puh: Faksi:
www.dewalt.fi
asiakaspalvelu.fi@sbdinc.com
Sverige
DeWALT
Box 94
431 22 Mölndal
Tel: 031 68 61 60
Fax: 031 68 60 08
www.dewalt.se
kundservice.se@sbdinc.com
Türkiye
KALE Hırdavat ve Makina A.Ş.
Defterdar Mah. Savaklar Cad. No:15
Edirnekapı / Eyüp / İSTANBUL 34050 TÜRKİYE
Tel: 0212 533 52 55
Faks:
0212 533 10 05
www.dewalt.com.tr
United
Kingdom
DeWALT, 210 Bath Road;
Slough, Berks SL1 3YD
Tel: 01753-567055
Fax: 01753-572112
www.dewalt.co.uk
emeaservice@sbdinc.com
Australia
DeWALT
810 Whitehorse Road Box Hill
VIC 3103 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: 971 4 812 7400
Fax: 971 4 2822765
www.dewalt.ae
Service.MEA@sbdinc.com
010 400 4333
0800 411 340
N49771410/16
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