Dewalt DW310 User Manual

DW310, DW311

VS Reciprocating Saws

Scies alternatives à vitesse variable

Sierras alternativas de velocidad variable

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, user must read instruction manual.

General Safety Rules

WARNING! Read all instructions. Failure to follow all instructions listed below

may result in electric shock, fire and/or serious injury. The term “power tool” in all
of the warnings listed below refers to your mains-operated (corded) power tool or
battery-operated (cordless) power tool.

SAVE THESE INSTRUCTIONS

1) WORK AREA SAFETY

a) Keep work area clean and well lit. Cluttered or dark areas invite accidents.
b) Do not operate power tools in explosive atmospheres, such as in the presence of

flammable liquids, gases or dust. Power tools create sparks which may ignite the dust

or fumes.

c) Keep children and bystanders away while operating a power tool. Distractions can

cause you to lose control.

2) ELECTRICAL SAFETY

a) Power tool plugs must match the outlet. Never modify the plug in any way. Do not

use any adapter plugs with earthed (grounded) power tools. Unmodified plugs and

matching outlets will reduce risk of electric shock.

b) Avoid body contact with earthed or grounded surfaces such as pipes, radiators,

ranges and refrigerators. There is an increased risk of electric shock if your body is earth-

ed 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. Replace or repair damaged cords.

Make sure your extension cord is in good condition. Use only 3-wire extension cords that

have 3-prong grounding-type plugs and 3-pole receptacles that accept the tool’s plug.

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. When using

an extension cord, be sure to use one heavy enough to carry the current your product will

draw. An undersized cord will cause a drop in line voltage resulting in loss of power and

overheating. The following table shows the correct size to use depending on cord length

and nameplate ampere rating. If in doubt, use the next heavier gage. The smaller the gage

number, the heavier the cord.

Minimum Gage for Cord Sets

Volts Total Length of Cord in Feet

120V 0-25 26-50 51-100 101-150
240V 0-50 51-100 101-200 201-300

Ampere Rating

More Not more AWG
Than Than

0-6 18 16 16 14

6 - 10 18 16 14 12
10 - 12 16 16 14 12
12 - 16 14 12 Not Recommended

3) PERSONAL SAFETY

a) Stay alert, watch what you are doing and use common sense when operating a

power tool. Do not use a power tool while you are tired or under the influence of
drugs, alcohol or medication. A moment of inattention while operating power tools may

result in serious personal injury.

b) Use safety equipment. Always wear eye protection. Safety equipment such as dust

mask, non-skid safety shoes, hard hat, or hearing protection used for appropriate
conditions will reduce personal injuries.

c) Avoid accidental starting. Ensure the switch is in the off-position before plugging

in. Carrying power tools with your finger on the switch or plugging in 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 jewellery. Keep your hair, clothing and

gloves away from moving parts. Loose clothes, jewellery or long hair can be caught in

moving parts. Air vents often cover moving parts and should also be avoided.

g) If devices are provided for the connection of dust extraction and collection facilities,

ensure these are connected and properly used. Use of these devices can reduce dust-

related 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 tools 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 and in the manner intended for the particular type of power tool, 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 qualified repair person using only identical

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

Additional Specific Safety Rules

• Hold tool by insulated gripping surfaces when performing an operation where the
cutting tool may contact hidden wiring or its own cord. Contact with a “live” wire will

make exposed metal parts of the tool “live” and shock the operator.

• 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.

• Keep hands away from moving parts. Never place your hands near the cutting area.

• Keep hands away from cutting area. When sawing, never reach underneath or behind the
material being cut for any reason.

• Never hold work in your hand, lap or against parts of your body when sawing. The saw
my slip and the blade could contact the body causing injury.

• Use extra caution when cutting overhead and pay particular attention to overhead
wires which may be hidden from view. Anticipate the path of falling branches and debris
ahead of time.

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

WARNING: Wear appropriate personal hearing protection during use. Under some

conditions and duration of use, noise from this product may contribute to hearing loss.

WARNING: Always use eye protection. All users and bystanders must wear eye protection

that conforms to ANSI Z87.1.

CAUTION: When not in use, place tool on its side on a stable surface where it will not

cause a tripping or falling hazard. Some tools with large battery packs will stand upright on

the battery pack but may be easily knocked over.

WARNING: Some dust created by power sanding, sawing, grinding, drilling, and other con-

struction activities contains chemicals known 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 (CCA).

Your risk from these exposures varies, depending on how often you do this type of work. To
reduce your exposure to these chemicals: work in a well ventilated area, and work with
approved safety equipment, such as those dust masks that are specially designed to filter out
microscopic particles.

• Avoid prolonged contact with dust from power sanding, sawing, grinding, drilling, and

other construction activities. Wear protective clothing and wash exposed areas with
soap and water. Allowing dust to get into your mouth, eyes, or lay on the skin may promote

absorption of harmful chemicals.

WARNING: Use of this tool can generate and/or disburse 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.

• The label on your tool may include the following symbols. The symbols and their definitions
are as follows:

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

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

min ............minutes ............alternating current

..........direct current

n

o..............no load speed

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

..............safety alert symbol .../min........revolutions per minute

COMPONENTS (Fig. 1)

A. Trigger switch F. Blade clamp collar
B. Variable speed selector wheel G. Hand grip
C. Shoe release lever H. Rear handle
D. Adjustable shoe
E. Blade action selector

TRIGGER SWITCH

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.

NOTE: This tool has no provision to lock the switch in the ON position, and should never be
locked ON by any other means.

CAUTION: Use of very slow speed is recommended only for beginning a cut. Prolonged use at
very slow speed may damage your saw.

VARIABLE SPEED SWITCH AND SELECTOR WHEEL

Both saws are equipped with a variable speed control (0 to 2600 SPM). As the trigger switch is
depressed, the speed of the saw blade increases.

The DW311 has a variable speed selector wheel (B) to control the speed of the tool. To select a
slow speed for operating your saw, rotate the wheel to a low number on the dial. To select a high­er speed, rotate the wheel to a higher number.

The lower speeds are recommended for most metal cutting, while the higher speeds are
recommended for wood. A few practice cuts on scrap material at various speeds will aid you in
choosing the best speed for obtraining the desired results for your application.

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

(FEB06) Form No. 634900-00 DW310, DW311 Copyright © 2005, 2006 DEWALT

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

INSTRUCTION MANUAL

GUIDE D'UTILISATION

MANUAL DE INSTRUCCIONES

INSTRUCTIVO DE OPERACIÓN, CENTROS DE SERVICIO Y PÓLIZA

DE GARANTÍA. ADVERTENCIA: LÉASE ESTE INSTRUCTIVO

ANTES DE USAR EL PRODUCTO.

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

Dual Blade Motion (DW311 Only) (Fig. 2)

The DW311 has dual blade motion: straight reciprocating motion or orbital motion.
Straight reciprocating motion is used for all metal cutting operations and for wood cutting

applications where finish is more important than speed. To set the saw for straight reciprocating
motion, turn the blade action selector (E) 45˚ clockwise to align the mark (I) with the arrow on
the tool (J), as shown.

Orbital motion is used for fast cutting of wood. To set the saw for orbital action, turn the blade
action selector 45˚ counterclockwise to align the mark (K) with the arrow on the tool (J), as
shown.

Adjustable Shoe (Fig. 3)

CAUTION: Turn off and unplug the tool before making any adjustments or removing

or installing attachments or accessories.

Push the shoe release lever (C) downward and slide the shoe (D) out to the desired setting.
Rotate the lever to lock shoe into position.

CAUTION: Cut hazard. To prevent loss of control, never use tool without shoe.
CAUTION: Risk of personal injury and property damage. Ensure the shoe is locked into

position before using tool.

Blade Installation and Removal (Fig. 4, 5)

Different blade lengths are available. Use the appropriate blade for the application. The
blade should be longer than 3-1/2" and should extend past the shoe and the thickness of the
workpiece during the cut. Select the blade best suitable for the material to be cut and use the
shortest blade suitable for the thickness of the material. Do not use jigsaw blades with this tool.

WARNING: Cut hazard. Blade breakage may occur if the blade does not extend past the

shoe and the workpiece during the cut (Fig. 4). Increased risk of personal injury, as well as
damage to the shoe and workpiece may result.

WARNING: Cut hazard. Turn off and unplug the tool before making any adjustments or

removing or installing attachments or accessories.

TO INSTALL BLADE INTO SAW (FIG. 5)

1. Point tool away from body.

2. Rotate blade clamp collar (F) to release position.

3. Insert blade shank from the front.

4. Rotate blade clamp collar to lock blade into position.

NOTE: Blade can be installed upside-down to assist in flush-to cutting, see Figure 7.
TO REMOVE BLADE FROM SAW

WARNING: Burn hazard. Do not touch the the blade immediately after use. Contact with the

blade may result in personal injury.

1. Rotate blade clamp collar (F) to release position.

2. Remove blade.

Operation

WARNING: Always wear eye protection while operating this or any other power tool.
WARNING: Burn hazard. Do not touch the the blade immediately after use. Contact with the

blade may result in personal injury.

Before you begin work, ensure the material to be cut is rigid. Small workpieces should be
securely clamped to the work table.

PROPER HAND POSITION

Grasp the underside of the hand grip (G) with one hand and the rear handle (H) with the other
hand.

Cutting (Fig. 6)

WARNING: Always wear eye protection while operating this power tool.
WARNING: Cut hazard. Exercise extra caution when cutting towards operator. Always hold

saw firmly with both hands while cutting.

Before cutting any type of material, be sure it is firmly anchored or clamped to prevent slipping.
Place blade lightly against work to be cut, depress the trigger switch and allow it to obtain max­imum speed before applying pressure. Whenever possible, the saw shoe must be held firmly
against the material being cut. This will prevent the saw from jumping or vibrating and minimize
blade breakage. Any cut which puts pressure on the blade, such as angle or scroll cuts,
increase potential for vibration, kickback and blade breakage.

NOTE: The blade cuts on the down stroke leaving the cleanest edge on the underside of the
material.

WARNING: Shock hazard. Use extra caution when cutting overhead and pay particular atten-

tion to overhead wires which may be hidden from view.

WARNING: Use extra caution when cutting overhead and anticipate the path of falling

branches and debris ahead of time.

WARNING: Inspect work site for hidden gas pipes, water pipes, or electrical wires before

making blind or plunge cuts. Failure to do so may result in explosion, property damage, elec­tric shock, and/or serious personal injury.

FLUSH-TO CUTTING (FIG. 7)

The compact design of the saw motor housing and spindle housing permits extremely close cut­ting to floors, corners and other difficult areas. The blade can be installed upside-down to assist
in flush-to cutting

POCKET/PLUNGE CUTTING – WOOD ONLY (FIG. 8)

WARNING: Shock hazard. Exercise extreme caution when blind cutting to ensure that there

are no foreign objects such as electrical wire, conduit, plumbing pipes, etc., that may come in
contact with the blade.

NOTE: DO NOT attempt to pocket/plunge cut metal.
The initial step in pocket/plunge cutting is to measure the surface area to be cut and mark

clearly with a pencil, chalk or scriber. Use the appropriate blade for the application. The blade
should be longer than 3-1/2" (88.9mm) and should extend past the shoe and the thickness of the
workpiece during the cut. Insert blade in blade clamp.

Next, tip the saw backward until the back edge of the shoe is resting on the work surface and the
blade clears the work surface. Depress trigger switch to turn motor on, always permitting blade
to attain maximum speed. Grip saw 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/plunge cut.

NOTE: In areas where blade visibility 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.

METAL CUTTING (FIG. 9)

This unit has different metal cutting capacities depending upon type of blade used and the metal
to be cut. Use a finer 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. Start the cut on the surface where the
greatest number of teeth will contact the workpiece.

NOTE: It is generally recommended that when cutting metals you should spread a thin film
of oil or other lubricant along the line ahead of the saw cut for easier operation and longer
blade life.

MAINTENANCE
Cleaning

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

Periodically blow out all air passages with dry-compressed air. All plastic parts should be
cleaned with a soft damp cloth. Never use solvents to clean plastic parts. They could possibly
dissolve or otherwise dameage the material.

If replacement of the power cord is necessary, the tool should be taken to a D

EWALT factory

service center, a D

EWALT authorized service center or other qualified service personnel in order

to avoid a safety hazard. To locate an authorized service center, 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.

Lubrication

This tool has been lubricated with a sufficient amount of high-grade lubricant for the life of this
unit under normal conditions. No further lubricaton is necessary.

D

A

H

G

F

C

C

ROCK TOOL UP TO NORMAL CUTTING POSITION

AFTER BLADE HAS CUT THROUGH MATERIAL.

STARTING POSITION FOR POCKET CUTTING

POSITION DE DÉPART POUR LA COUPE EN POCHE

POSICIÓN DE ARRANQUE PARA CORTES INTERNOS

BALANCER L'OUTIL JUSQU'À SA POSITION NORMALE

DE COUPE APRÈS LA PÉNÉTRATION COMPLÈTE

DE LA LAME DANS LE MATÉRIAU.

GIRE LA HERRAMIENTA HASTA LA POSICIÓN DE

CORTE NORMAL DESPUÉS DE QUE LA HOJA HAYA

CORTADO EL MATERIAL.

FIG. 1

DW310

DW311

G

E

J

B

FIG. 5

FIG. 6

FIG. 7

FIG. 8

FIG. 9

FIG. 2

FIG. 3

FIG. 4

D

A

H

STRAIGHT

RECIP. MOTION

MOUVEMENT

ALTERNATIF VERTICAL

MOVIMIENTO

ALTERNATIVO RECTO

ORBITALACTION

FONCTIONNEMENT

ORBITAL

ACCIÓN ORBITAL

I

K

F

Brush Inspection

For your continued safety and electrical protection, brush inspection and replacement on this tool
should only be performed by a D

EWALT factory service center, a DEWALT authorized

service center or other qualified service personnel.
At approximately 100 hours of use, take or send your tool to your nearest authorized service cen-

ter to be thoroughly cleaned and inspected. Have worn parts replaced and lubricated with fresh
lubricant. Have new brushes installed and test the tool for performance.

Any loss of power before the above maintenance check may indicate the need for immediate
servicing of the tool. DO NOT CONTINUE TO OPERATE THE TOOL UNDER THIS CONDITION.
If proper operating voltage is present, return the tool for immediate service.

Accessories

WARNING: Always wear eye protection while operating this power tool.
WARNING: The use of any other accessory not recommended for use with this tool could be

hazardous.

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