DeWalt DW303, DW303M, DW304P, DWE305 Instruction Manual

INSTRUCTIVO DE OPERACIÓN, CENTROS DE SERVICIO Y PÓLIZA DE

GARANTÍA. ADVERTENCIA: LÉASE ESTE INSTRUCTIVO ANTES DE

USAR EL PRODUCTO.

Defi nitions: Safety Guidelines

The defi nitions 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.

IF YOU HAVE ANY QUESTIONS OR COMMENTS ABOUT THIS OR ANY DEWALT TOOL, CALL US
TOLL FREE AT: 1-800-4-D

EWALT (1-800-433-9258).

WARNING: To reduce the risk of injury, read the instruction manual.

General Power Tool Safety Warnings

WARNING! Read all safety warnings and all instructions. Failure to follow the warnings
and instructions may result in electric shock, fi re 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 battery­operated (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

fl ammable 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. Unmodifi ed 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 infl uence 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 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 fi nger 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 dust­related hazards.

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 the battery pack 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. 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.

5) SERVICE

a) Have your power tool serviced by a qualifi ed repair person using only identical

replacement parts. This will ensure that the safety of the power tool is maintained.

Additional Specifi c Safety Rules

• Hold power tool by insulated gripping surfaces when performing an operation where
the cutting accessory may contact hidden wiring or its own cord. Cutting accessory

contacting a “live” wire may make exposed metal parts of the tool “live” and could give the
operator an electric shock

• Use clamps or another practical way to secure and support the workpiece to a stable
platform. Holding the work by hand or against your body leaves it unstable and may lead to loss

of control.

• Do not operate this tool for long periods of time. Vibration caused by the operating action
of this tool may cause permanent injury to fi ngers, hands, and arms. Use gloves to provide extra
cushion, take frequent rest periods, and limit daily time of use.

• Air vents often cover moving parts and should be avoided. Loose clothes, jewelry or long
hair can be caught in moving parts.

• An extension cord must have adequate wire size (AWG or American Wire Gauge) for
safety. The smaller the gauge number of the wire, the greater the capacity of the cable, that is
16 gauge has more capacity than 18 gauge. An undersized cord will cause a drop in line voltage
resulting in loss of power and overheating. When using more than one extension to make up
the total length, be sure each individual extension contains at least the minimum wire size. The
following table shows the correct size to use depending on cord length and nameplate ampere
rating. If in doubt, use the next heavier gauge. The smaller the gauge number, the heavier the
cord.

Minimum Gauge for Cord Sets

Ampere Rating

Volts Total Length of Cord in Feet (meters)
120V 25 (7.6) 50 (15.2) 100 (30.5) 150 (45.7)

240V 50 (15.2) 100 (30.5) 200 (61.0) 300 (91.4)
More
Than

Not More

Than

AWG

0 6 18 16 16 14

610 18161412
10 12 16 16 14 12
12 16 14 12 Not Recommended

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:

• ANSI Z87.1 eye protection (CAN/CSA Z94.3),

• ANSI S12.6 (S3.19) hearing protection,

• NIOSH/OSHA/MSHA respiratory protection.

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 fi lter 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 NIOSH/OSHA approved respiratory protection
appropriate for the dust exposure. Direct particles away from face and body.

WARNING: Always wear proper personal hearing protection that conforms to ANSI

S12.6 (S3.19) during use. Under some conditions and duration of use, noise from this product

may contribute to hearing loss.

• The label on your tool may include the following symbols. The symbols and their defi nitions are

as follows:

V .....................volts A ........................amperes

Hz ...................hertz W ....................... watts

min .................minutes

or AC ............alternating current

or DC ..... direct current or AC/DC .....alternating or direct current

................... Class I Construction no.......................no load speed

.......................

(grounded) n .........................rated speed

...................Class II Construction .......................earthing terminal

(double insulated)

.......................safety alert symbol

…/min ............per minute BPM ...................beats per minute

IPM .................impacts per minute RPM ...................revolutions per minute

SPM ...............strokes per minute sfpm ...................surface feet per minute

DEWALT Industrial Tool Co., 701 East Joppa Road, Baltimore, MD 21286

(JAN14) Part No. N257120 DW303, DW303M, DW304P Copyright © 2004, 2012, 2014

The following are trademarks for one or more DEWALT power tools: the yellow and black color scheme; the “D”
shaped air intake gril; the array of pyramids on the handgrip; the kit box confi guration; and the array of lozenge­shaped humps on the surface of the tool.

INSTRUCTION MANUAL

GUIDE D’UTILISATION

MANUAL DE INSTRUCCIONES

DW303, DW303M, DW304P

VS Reciprocating Saw

Scies alternatives à régulateur de vitesse

Sierra reciprocante VV

If you have questions or comments, contact us.

Pour toute question ou tout commentaire, nous contacter.

Si tiene dudas o comentarios, contáctenos.

1-800-4-DEWALT • www.dewalt.com

SAVE THESE INSTRUCTIONS FOR FUTURE USE

Motor

Be sure your power supply agrees with the nameplate marking. Voltage decrease of more than
10% will cause loss of power and overheating. D

EWALT tools are factory tested; if this tool does not

operate, check power supply.

COMPONENTS (Fig. 1-3)

WARNING: Never modify the power tool or any part of it. Damage or personal injury could result.

A. Trigger switch E. balde clamp
B. Set screw F. Blade
C. Blade shank G. Pin
D. Reciprocating shaft H. Blade clamp release lever

Switch (Variable Speed) (Fig. 1)

The variable speed trigger switch (A) will give you added versatility. The further the trigger is depressed
the higher the speed of the saw. To turn the tool “OFF” release the trigger.

CAUTION: Use of very slow speed is recommended only for begin ning a cut. Prolonged use at

very slow speed may damage your saw.

ASSEMBLY AND ADJUSTMENTS

WARNING: TO REDUCE THE RISK OF INJURY, TURN UNIT OFF AND DISCONNECT IT
FROM POWER SOURCE BEFORE INSTALLING AND REMOVING ACCESSORIES,
BEFORE ADJUSTING OR WHEN MAKING REPAIRS. An accidental start-up can cause injury.

Blade Clamping DW303 (Fig. 2)

CAUTION: TURN OFF AND UNPLUG SAW.

To install blade into saw:

1. Loosen set screw(B).

2. Insert blade shank (C) from the front between the reciprocating shaft (D) and the blade clamp

(E). Locate hole in blade (F) over pin (G) on reciprocating shaft.

3. T ighten set screw. If the blade should break off and the shank does not come out of the clamp,

be sure the set screw is loose and eject the shank with a nail or pointed object.

CAUTION: THE BLADE GUARD IS THERE FOR YOUR SAFETY. DO NOT REMOVE IT.

Blade Clamp Release Lever (DW303M and DW304P, Fig. 3)

CAUTION: TURN OFF AND UNPLUG SAW.
To install blade into saw:

1. Pull blade clamp release lever (H) up.

2. Insert blade shank from the front.

3. Push blade clamp release lever down.

To remove blade from saw:

1. Open blade clamp release lever.

2. Remove blade.

CAUTION: THE BLADE GUARD IS THERE FOR YOUR SAFETY. DO NOT REMOVE IT.

OPERATION

WARNING: To reduce the risk of injury, turn unit off and disconnect it from power
source before installing and removing accessories, before adjusting or when making
repairs. An accidental start-up can cause injury.

Cutting with Blade in Horizontal Position
(DW304P Only, Fig. 4A)

Installing a blade in the horizontal orientation allows cutting close to fl oors, walls or ceilings where
limited clearance is available. Ensure that the Blade Guard is pressed against the framing to avoid
kickback.

Flush-To Cutting (Fig. 5)

The compact design of the saw motor housing and spindle housing permits extremely close cutting
to fl oors, corners and other diffi cult areas.

CAUTION: When sawing into walls, fl oors or wherever “live” electrical wires may be encountered,
DO NOT TOUCH ANY FRONT METAL PARTS OF THE TOOL! Hold the tool only by the plastic

handle and housing to prevent electric shock if you saw into a “live” wire.

CAUTION: Always wear eye protection while operating this power tool.

Wood Cutting (Fig. 6)

Before cutting any type of wood, be sure it is fi rmly anchored or clamped to prevent slipping. Place
blade lightly against work to be cut, switch on saw motor and allow it to obtain maximum speed
before applying pressure. Always hold saw fi rmly with both hands while cutting. Whenever possible,
the saw shoe must be held fi rmly against the material being cut. This will prevent the saw from
jumping or vibrating and minimize blade breakage.

Metal Cutting (Fig. 7)

This unit has different metal cutting capacities depending upon type of blade used and the metal
to be cut. Use a fi ner blade for ferrous metals and a coarse blade for non-ferrous materials. In thin
gauge sheet metals it is best to clamp wood to both sides of sheet. This will insure a clean cut
without excess vibration or tearing of metal. Always remember not to force cutting blade as this
reduces blade life and causes costly blade breakage.
NOTE: It is generally recommended that when cutting metals you should spread a thin fi lm of oil or
other coolant along the line ahead of the saw cut for easier operation and longer blade life.

Pocket Cutting (Fig. 8) (Wood Only)

The initial step in pocket cutting is to measure the surface area to be cut and mark clearly with a
pencil, chalk or scriber. Insert pocket cutting blade in blade clamp and tighten blade clamp securely.
Next, tip the saw backward until the back edge of the shoe is resting on the work surface. Now
switch motor on, always permitting blade to attain maximum speed. Grip handle steadily and begin
a slow, deliberate upward swing with the handle of the saw. Blade will begin to feed into material.
Always be sure blade is completely through material before continuing with pocket cut.
NOTE: In areas where blade visibilty is limited, use the edge of the saw shoe as a guide. Lines for
any given cut should be extended beyond edge of cut to be made.

MAINTENANCE

WARNING: To reduce the risk of injury, turn unit off and disconnect it from power
source before installing and removing accessories, before adjusting or when making
repairs. An accidental start-up can cause injury.

Cleaning

WARNING: Blow dirt and dust out of all air vents with clean, dry air at least once a week. To
minimize the risk of eye injury, always wear ANSI Z87.1 approved eye protection when performing
this.

WARNING: Never use solvents or other harsh chemicals for cleaning the non-metallic parts of
the tool. These chemicals may weaken the plastic materials used in these parts. Use a cloth
dampened only with water and mild soap. Never let any liquid get inside the tool; never immerse any
part of the tool into a liquid.

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 D

EWALT recommended accessories should be used with this product.

Recommended accessories for use with your tool are available at extra cost from your local dealer or
authorized service center. If you need assistance in locating any accessory, please contact D

EWALT

Industrial Tool Co., 701 East Joppa Road, Baltimore, MD 21286, call 1-800-4-D

EWALT (1-800-433-

9258) or visit our website: www.dewalt.com.

Repairs

To assure product SAFETY and RELIABILITY, repairs, maintenance and adjustment (including brush
inspection and replacement) should be performed by a D

EWALT factory service center, a DEWALT

authorized service center or other qualifi ed service personnel. Always use identical replacement
parts.

FIG. 7

FIG. 4

FIG. 6

FIG. 1

H

FIG. 3

FIG. 8

ROCK TOOL UP TO NORMAL CUTTING POSITION

AFTER BLADE HAS CUT THROUGH MATERIAL

STARTING POSITION FOR POCKET CUTTING

POSITION DE DÉPART POUR LES COUPES

EN RETRAIT

POSICION DE INICIO PARA EL CORTE DE BOLSILLO

BERCER L’OUTIL EN POSITION NORMALE DE

COUPE ÁPRES AVOIR TRAVERSÉ MATÉRIAU AVEC

LA LAME

BALANCEE LA HERRAMIENTA HASTA LA

POSICION DE CORTE NORMAL DESPUES DE HACER

EL CORTE A TRAVES DEL MATERIAL

A

FIG. 5

B

C

E

D

B

FIG. 2

F

G

FIG. 4A