DeWalt DW299 Instruction Manual

DEWALT Industrial Tool Co., 701 East Joppa Road, Baltimore, MD 21286 Printed in Country (JUL00-1) Form No. 384193

DW299 Copyright © 1997, 2000

384193/DW299 5/2/02 2:35 PM Page 2

INSTRUCTION MANUAL
GUIDE D'UTILISATION
MANUAL DE INSTRUCCIONES

DW299
3/4" Impact Wrench

Clé à chocs 19mm (3/4 po)
Llave de impacto19mm (3/4”)

INSTRUCTIVO DE OPERACIÓN, CENTROS DE SERVICIO Y PÓLIZA
DE GARANTÍA. ADVERTENCIA: LÉASE ESTE INSTRUCTIVO ANTES
DE USAR EL PRODUCTO.

Questions? See us in the World Wide Web at www.dewalt.com

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English

Important safety instructions

WARNING: When using electric tools, basic safety precautions
should always be followed to reduce risk of fire, electric shock, and
personal injury, including the following:

READ ALL INSTRUCTIONS

Safety Instructions For All Tools

• KEEP WORK AREACLEAN.Cluttered areas and benches invite

injuries.

• CONSIDER WORK AREAENVIRONMENT. Don’t expose power

tools to rain. Don’t use power tools in damp or wet locations. Keep
work area well lit. Do not use tool in presence of flammable liquids
or gases.

• GUARD AGAINST ELECTRIC SHOCK. Prevent body contact

with grounded surfaces. For example; pipes, radiators, ranges,
and refrigerator enclosures.

• KEEP CHILDREN AWAY. Do not let visitors contact tool or

extension cord. All visitors should be kept away from work area.

• STORE IDLE TOOLS. When not in use, tools should be stored in

dry, and high or locked-up place — out of reach of children.

• DON’T FORCE TOOL. It will do the job better and safer at the rate

for which it was intended.

• USE RIGHT TOOL. Don’t force small tool or attachment to do the

job of a heavy-duty tool. Don’t use tool for purpose not intended.

• DRESS PROPERLY. Do not wear loose clothing or jewelry. They

can be caught in moving parts. Rubber gloves and non-skid
footwear are recommended when working outdoors. Wear
protective hair covering to contain long hair.

• USE SAFETY GLASSES.Also use face or dust mask if operation

is dusty.

• DON’T ABUSE CORD. Never carry tool by cord or yank it to

disconnect from receptacle. Keep cord from heat, oil, and sharp
edges.

• SECURE WORK. Use clamps or a vise to hold work. It’s safer
than using your hand and it frees both hands to operate tool.

• DON’T OVERREACH. Keep proper footing and balance at all
times.

• MAINTAIN TOOLS WITH CARE. Keep tools sharp and clean for
better and safer performance. Follow instructions for lubricating
and changing accessories. Inspect tool cords periodically and if
damaged, have repaired by authorized service facility. Inspect
extension cords periodically and replace if damaged. Keep
handles dry, clean, and free from oil and grease.

• DISCONNECT OR LOCK OFF TOOLS when not in use, before
servicing, and when changing accessories, such as blades, bits,
cutters.

• REMOVE ADJUSTING KEYS AND WRENCHES. Form habit of
checking to see that keys and adjusting wrenches are removed
from tool before turning it on.

• AVOID UNINTENTIONALSTARTING. Don’t carry tool with finger
on switch. Be sure switch is off when plugging in.

• EXTENSION CORDS. Make sure your extension cord is in good
condition. 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 18161614
6 - 10 18 16 14 12
10-1216161412
12 - 16 14 12 Not Recommended

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English

1

• OUTDOOR USE EXTENSION CORDS. When tool is used
outdoors, use only extension cords intended for use outdoors and
so marked.

• STAYALERT. Watch what you are doing. Use common sense. Do
not operate tool when you are tired.

• CHECK DAMAGED PARTS. Before further use of the tool, a
guard or other part that is damaged should be carefully checked 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
center unless otherwise indicated elsewhere in this instruction

REVERSING SWITCH

RING

CHUCK

TRIGGER

SWITCH

SIDE HANDLE

BUMPER

BUMPER

DW299 - 3/4" (19mm) Impact Wrench

manual. Have defective switches replaced by authorized service
center. Do not use tool if switch does not turn it on and off.

WARNING: Some dust created by power sanding, sawing, grinding,
drilling, and other construction 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.

• The label on your tool may include the following symbols.

V ............................volts

A ............................amperes

Hz ..........................hertz

W ..........................watts

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

..........................alternating current

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

n

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

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

Class II Construction

…/min ....................revolutions or reciprocation per minute

..........................earthing terminal

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

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2

SAVE THESE INSTRUCTIONS

Grounding Instructions

This tool should be grounded while in use to protect the operator
from electric shock. The tool is equipped with a 3-conductor cord and
3-prong grounding type plug to fit the proper grounding type
receptacle. The green (or green and yellow) conductor in the cord is
the grounding wire. Never connect the green (or green and yellow)
wire to a live terminal. If your unit is intended for use on less than 150
V, it has a plug that looks like that shown in sketch A. If it is for use
on 150 to 250 V, it has a plug that looks like that shown in sketch D.
An adapter, sketches B and C, is available for connecting sketch A
type plugs to 2-prong receptacles. The green-colored rigid ear, lug,
or the like, extending from the adapter must be connected to a
permanent ground, such as a properly grounded outlet box. No
adapter is available for a plug as shown in sketch D. ADAPTER
SHOWN IN FIGURES B and C IS NOT FOR USE IN CANADA. Use
only 3-wire extension cords that have 3-prong grounding-type plugs
and 3-pole receptacles that accept the tool’s plug. Replace or repair
damaged cords.

END CAP

REVERSING

SWITCH RING

BRUSH CAP (2)

RAISED RIB

INDICATOR

SCREW

FIGURE 1

Additional Safety Instructions
Motor

Be sure your power supply agrees with nameplate marking. Voltage
decrease of more than 10% will cause loss of power and
overheating. All tools are factory tested; if this tool does not operate,
check the power supply.

Switch

Depress the trigger switch to turn the tool on. Release the trigger to
turn the tool off. The reversing switch ring (Figure 1) is used to
change the direction of rotation. To set in forward position, rotate
the switch ring counterclockwise (as viewed by the operator) until
raised mark on one of the ribs of the ring is opposite the “Forward”
mark on the nameplate. For reverse position, rotate switch ring
clockwise (as viewed by the operator) until raised mark on rib is
opposite the “Reverse” mark on nameplate.

CAUTION: Always be sure motor is completely stopped before

using reversing switch.

AB CD

GROUNDING PIN

GROUNDED

OUTLET

BOX

GROUNDING

MEANS

GROUNDING PIN

ADAPTER

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