DeWalt DW073 User manual

DEWALT Industrial Tool Co., 701 East Joppa Road, Baltimore, MD 21286 Printed in U.S.A. (XXX00-CD-1) Form No. 611118-01
Copyright © 2002
DEWALT Battery and Charger Systems
Batt. Output Chargers/Charge Time - Chargeurs/Durée de charge (Minutes) - Cargadores de pilas/Tiempo de carga (Minutos)
Model# Volts 120 Volts 230 Volts 12 Volts
DW9106 DW9118 DW9107 DW9108 DW9116 DW9117 DW911 DW0245 DW0246 DW9108220 DW9116220 DW9109
DW0240 24 X X X X X X X 60 60 X X X
DW0242 24 X X X X X X X 60 60 X X X
DW9096 18 X X X 60 60 22 60 X X 60 60 60
DW9095 18 X X X 45 45 15 45 X X 45 45 45
DW9098 18 X X X 30 30 12 30 X X 30 30 30
DW9091 14.4 60 90 45 45 45 15 45 X X 45 45 45
DW9094 14.4 42 60 30 30 30 12 30 X X 30 30 30
DW9051 13.2 43 X X X X X X X X X X X
DW9071 12 60 90 45 45 45 15 45 X X 45 45 45
DW9072 12 42 60 30 30 30 12 30 X X 30 30 30
DW9050 12 43 X X X X X X X X X X X
DW9061 9.6 60 90 45 45 45 15 45 X X 45 45 45
DW9062 9.6 42 60 30 30 30 12 30 X X 30 30 30
DW9048 9.6 40 X X X X X X X X X X X
DW9057 7.2 42 60 30 30 30 12 30 X X 30 30 30
DW9046 7.2 40 X X X X X X X X X X X
X Indicates that the battery pack is not compatible with that specific charger.
X indique que le bloc-piles n’est pas compatible avec ce chargeur.
Una “X” indica que el paquete de pilas no es compatible con ese cargador.
All charge times are approximate. Actual charge time may vary. Read the instruction manual for more specific information.
Les durées de charge sont approximatives; la durée de charge rélle peut varier. Lire le manuel d’utilisation pour obtenir des renseigne-
ments plus précis.
Los tiempos de carga son aproximados. La duración de carga real puede variar. Para obtener una información màs precisa, lea el manual
de utilización.
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.
DW073/611118-01 5/13/02 4:37 PM Page 2

INSTRUCTIVO DE OPERACIÓN, CENTROS DE SERVICIO Y PÓLIZA
DE GARANTÍA. ADVERTENCIA: LÉASE ESTE INSTRUCTIVO ANTES
DE USAR EL PRODUCTO.
INSTRUCTION MANUAL
GUIDE D'UTILISATION
MANUAL DE INSTRUCCIONES
DW073 Cordless Rotary Laser
Laser rotatif sans fil DW073
DW073 Láser rotatorio inalámbrico
Questions? See us in the World Wide Web at www.dewalt.com
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•Use battery operated tool only with the specifically
designated battery pack. Use of any other batteries may create a
risk of fire.
PERSONAL SAFETY
•Stay alert, watch what you are doing and use common sense
when operating a power tool. Do not use tool while tired or
under the influence of drugs, alcohol, or medication. A
moment of inattention while operating power tools may result in
serious personal injury.
•Dress properly. Do not wear loose clothing or jewelry. Contain
long hair. Keep your hair, clothing, and gloves away from
moving parts. Loose clothing, jewelry, or long hair can be caught
in moving parts. Air vents often cover moving parts and should also
be avoided.
•Avoid accidental starting. Be sure switch is in the locked or
off position before inserting battery pack. Carrying tools with
your finger on the switch or inserting the battery pack into a tool
with the switch on invites accidents.
•Do not overreach. Keep proper footing and balance at all
times. Proper footing and balance enables better control of the tool
in unexpected situations.
•Use safety equipment. Always wear eye protection. Dust mask,
non-skid safety shoes, hard hat, or hearing protection must be
used for appropriate conditions.
TOOL USE AND CARE
•Use clamps or other practical way to secure and support the
workpiece to a stable platform. Holding the work by hand or
against your body is unstable and may lead to a loss of control.
•Do not use tool if switch does not turn it on or off. A tool that
cannot be controlled with the switch is dangerous and must be
repaired.
•Disconnect battery pack from tool or place the switch in the
locked or off position before making any adjustments,
changing accessories, or storing the tool. Such preventative
IF YOU HAVE ANY QUESTIONS OR COMMENTS ABOUT THIS OR
ANY DEWALT TOOL, CALL US TOLL FREE AT:
1-800-4-DEWALT (1-800-433-9258)
Introduction
The DW073 Cordless Rotary Laser is a manually leveled laser tool that
can be used both inside and outside for horizontal (level) and vertical
(plumb) alignment projects. This tool comes fully assembled. Appli-
cations range from acoustical ceiling installation and wall layout to
foundation leveling and deck building. This tool has been designed with
many innovative features that allow for quick and easy set-up and
adjustment which will increase your productivity on the job. Please
read and understand all instructions within this manual prior to use.
General Safety Rules For Battery
Operated Tools
WARNING! Read and understand all instructions. Failure to follow
all instructions listed below may result in electric shock, fire and/or
serious personal injury.
SAVE THESE INSTRUCTIONS
WORK AREA
•Keep your work area clean and well lit. Cluttered benches and
dark areas invite accidents.
•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.
•Keep bystanders, children, and visitors away while operating
a power tool. Distractions can cause you to lose control.
ELECTRICAL SAFETY
•Abattery operated tool with integral batteries or a separate
battery pack must be recharged only with the specified
charger for the battery. A charger that may be suitable for one
type of battery may create a risk of fire when used with another
battery.
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safety measures reduce the risk of starting the tool accidentally.
•Store idle tools out of reach of children and other untrained
persons. Tools are dangerous in the hands of untrained users.
•When battery pack is not in use, keep it away from other metal
objects like: paper clips, coins, keys, nails, screws, or other
small metal objects that can make a connection from one
terminal to another. Shorting the battery terminals together may
cause sparks, burns, or a fire.
•Check for misalignment or binding of moving parts, breakage
of parts, and any other condition that may affect the tools
operation. If damaged, have the tool serviced before using.
Many accidents are caused by poorly maintained tools.
•Use only accessories that are recommended by the
manufacturer for your model. Accessories that may be suitable
for one tool, may create a risk of injury when used on another tool.
SERVICE
•Tool service must be performed only by qualified repair
personnel. Service or maintenance performed by unqualified
personnel may result in a risk of injury.
Additional Safety Rules
WARNING! DO NOT DISASSEMBLE LASER LEVEL. There are
no user serviceable parts inside. Disassembling the laser level will void
all warranties on the product. Do not modify the product in any way.
•The label on your tool may include the following symbols.
V....................volts
A....................amperes
Hz..................hertz
W..................watts
min ................minutes
................alternating current
..............direct current
no..................no load speed
..................Class II Construction
…/min............revolutions or reciprocation per minute
..................earthing terminal
..................safety alert symbol
Important Safety Instructions for Battery
Packs
The battery pack is not fully charged out of the carton! First read the
safety instructions below. Then follow charging notes and procedures.
READ ALL INSTRUCTIONS.
•Do not incinerate the battery pack even if it is severely damaged or is
completely worn out.The battery pack can explode in a fire.
•Asmall leakage of liquid from the battery pack cells may occur under
extreme usage or temperature conditions. This does not indicate a
failure. However, if the outer seal is broken and this leakage gets on
your skin:
a. Wash quickly with soap and water.
b. Neutralize with a mild acid such as lemon juice or vinegar.
c. If battery liquid gets into your eyes, flush them with clean water for
a minimum of 10 minutes and seek immediate medical attention.
(Medical note: The liquid is 25-35% solution of potassium hydroxide.)
•Do not carry extra battery packs in aprons, pockets, or tool boxes along
with other metal objects. Battery pack could be short circuited causing
damage to the battery pack and possibly causing severe burns or fire.
•Charge the battery packs only in DEWALT chargers.
•NOTE: The batteries in your battery pack are the nickel–cadmium
type. Cadmium is considered to be a toxic material by the Environ-
mental Protection Agency. Before disposing of damaged or worn out
Nickel–Cadmium battery packs, check with your state Environmental
Protection Agency to find out about special restrictions on the disposal
of these battery packs or return them to a DEWALT certified service
center for recycling.
•DO NOT store or use the tool and battery pack in locations where the
temperature may reach or exceed 105°F (such as outside sheds or
metal buildings in summer).
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DANGER: Never attempt to open the battery pack for any reason.
If battery pack case is cracked or damaged, do not insert into
charger. Danger of electric shock or electrocution. Damaged battery
packs should be returned to service center for recycling.
NOTE: Battery storage and carrying caps are provided for
use whenever the battery is out of the tool or charger.
Remove cap before placing battery in charger or tool.
WARNING: Do not store or carry battery so that
metal objects can contact exposed battery terminals.
For example, do not place battery in aprons, pockets,
tool boxes, product kit boxes, drawers, etc. with loose nails,
screws, keys, etc. without battery cap. Without cap in place,
battery could short circuit causing fire or burns or damage to battery.
Battery Packs
Your tool uses a 9.6, 12.0, 14.4 or an 18 Volt DEWALT battery pack.
When ordering replacement battery packs, be sure to include catalog
number and voltage: Extended Run-Time battery packs deliver 25%
more run-time than standard battery packs. XR+ Extended Run-
Time battery packs deliver 40% more run time than standard battery
packs. NOTE: Your tool will accept either standard or Extended Run
Time battery packs.
The RBRC™ Seal
The RBRC™ (Rechargeable Battery Recycling Corp
oration) Seal on the nickel-cadmium battery (or battery
pack) indicates that the costs to recycle the battery (or
battery pack) at the end of its useful life have already
been paid by DEWALT. In some areas, it is illegal to place
spent nickel-cadmium batteries in the trash or municipal
solid waste stream and the RBRC program provides an environ-
mentally conscious alternative.
RBRC in cooperation with DEWALT and other battery users, has
established programs in the United States to facilitate the collection of
spent nickel-cadmium batteries. Help protect our environment and
conserve natural resources by returning the spent nickel-cadmium
battery to an authorized DEWALT service center or to your local retailer
for recycling. You may also contact your local recycling center for
information on where to drop off the spent battery.
Important Safety Instructions for Battery
Chargers
SAVE THESE INSTRUCTIONS - This manual contains important
safety instructions for DEWALT battery chargers.
•Before using battery charger, read all instructions and cautionary
markings on battery charger, battery and product using battery.
•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.
CAUTION:To reduce the risk of injury, charge only DEWALT nickel
cadmium rechargeable batteries. Other types of batteries may
burst causing personal injury and damage.
CAUTION: Under certain conditions, with the charger plugged in to
the power supply, the exposed charging contacts inside the charger
can be shorted by foreign material. Foreign materials of a
conductive nature such as, but not limited to, steel wool, aluminum
foil, or any buildup of metallic particles should be kept away from
charger cavities. Always unplug the charger from the power supply
when there is no battery pack in the cavity. Unplug charger before
attempting to clean.
DANGER: High voltage present at charging terminals. Do not
probe with conductive objects. Danger of electric shock or
electrocution.
WARNING: Don’t allow any liquid to get inside charger or expose to
rain or snow. Electric shock may result.
•The charger and battery pack are specifically designed to work
together. DO NOT attempt to charge the battery pack with any chargers
other than the ones in this manual.
•These chargers are not intended for any uses other than charging
DEWALT rechargeable batteries. Any other uses may result in risk of
fire, electric shock or electrocution.
•To reduce risk of damage to electric plug and cord, pull by plug rather
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than cord when disconnecting charger. Do not carry the charger by the
cord.
•Make sure cord is located so that it will not be stepped on, tripped over,
or otherwise subjected to damage or stress.
•An extension cord should not be used unless absolutely necessary.
Use of improper extension cord could result in risk of fire, electric shock,
or electrocution.
•An extension cord must have adequate wire size (AWG or American
Wire Gauge) for safety. The smaller the gauge number of the wire, the
greaterthe capacity ofthe cable, thatis 16 gagehas more capacitythan
18 gage. When using more than one extension to make up the total
length, be sure each individual extension contains at least the minimum
wire size.
Recommended Minimum AWG Size for Extension Cords
Total Extension Cord Length (feet)
25 50 75 100 125 150 175
Wire Gauge
18 18 16 16 14 14 12
•The charger is ventilated through slots in the top and the bottom of the
housing. Do not place any object on top of charger or place the charger
on a soft surface that might block the ventilation slots and result in
excessive internal heat. Place the charger in a position away from any
heat source.
•Do not operate charger with damaged cord or plug — have them
replaced immediately.
•Do not operate charger if it has received a sharp blow, been dropped, or
otherwise damaged in any way; take it to an authorized service center.
•Do not disassemble charger; take it to an authorized service center
when service or repair is required. Incorrect reassembly may result in a
risk of electric shock, electrocution or fire.
•To reduce risk of electric shock, unplug charger from outlet before
attempting any cleaning. Removing the battery pack will not reduce this
risk.
•NEVER attempt to connect 2 chargers together.
•Do not use charger with any power source other than that indicated on
the nameplate.
Chargers
Your DEWALT battery can be charged in DEWALT 1 Hour Chargers, a
15 Minute Charger or Vehicular 12 volt charger. Be sure to read all
safety instructions before using your charger.
Consult chart on back cover for compatibility of chargers and battery
packs.
Charging Procedure
1 HOUR CHARGERS
1. Plug the charger into an appropriate power outlet.
2. Insert the battery pack into the charger, making sure the pack is fully
seated in the charger. The red (charging) light will blink continuously
indicating that the charging process has started.
3. The battery pack will be fully charged in about 1 hour. The
completion of charge will be indicated by the red light remaining ON
continuously. The pack is fully charged and may be used at this time
or left in the charger.
4. PROBLEM POWER LINE: (Some models) When the charger is
used with some portable power sources such as generators or
sources that convert DC to AC, the charger may temporarily
suspend operation, flashing the red light with two fast blinks
followed by a pause. This indicates the power source is out of limits.
5. HOT PACK DELAY: (Some models) When the charger detects a
battery that is hot, it automatically starts a Hot Pack Delay,
suspending charging until the battery has cooled. After the battery
has cooled, the charger automatically switches to the Pack
Charging mode. This feature ensures maximum battery life. The red
light flashes long, then short while in the Hot Pack Delay mode.
15 MINUTE CHARGERS
1. Plug the charger into an appropriate power outlet. The charger will
beep twice, the red light will blink and go off.
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2. Insert the battery pack into the charger, making sure the pack is fully
seated in the charger. The red light will blink and the charger will
beep once indicating the charging process has started.
3. The battery pack will be fully charged in less than 15 minutes under
most conditions. This will be indicated by the red light remaining ON
and 3 beeps. The pack is fully charged and may be used at this time
or left in the charger.
4. WEAK BATTERY PACKS: The 15 minute charger can also detect
a weak battery. Such batteries are still usable but should not be
expected to perform as much work. In such cases, about 10
seconds after battery insertion, the charger will beep rapidly 8 times
to indicate a weak battery condition. The charger will then go on to
charge the battery to the highest capacity possible.
ALL CHARGERS
Leaving the battery pack in the charger: When the red light remains
ON, the charger has switched to its "equalize charge" mode which
lasts approximately 4 hours, after which the charger will switch to
"maintenance charge" mode. The battery pack can be removed at
any time during these charge cycles, but will only be fully charged if the
red light is continuously ON. The charger and battery pack can be left
connected with the red light glowing indefinitely. The charger will keep
the battery pack fresh and fully charged. A battery pack will slowly
lose its charge when kept out of the charger. If the battery pack has not
been kept on maintenance charge, it may need to be recharged before
use. A battery pack may also slowly lose its charge if left in a charger
that is not plugged into an appropriate AC source.
BATTERY PERFORMANCE
Some chargers have a tune-up feature optimizes battery pack
performance. Your charger may provide Automatic Tune-Up™ Mode
or manual (i.e. push button) Tune-Up™ mode. For information on this
feature, please see the appropriate section below. Because batteries
slowly lose their charge when they are not on the charger, the best
place to keep your battery pack is on the charger at all times.
Using Automatic Tune-Up™ Mode
The Automatic Tune-Up™ Mode equalizes or balances the individual
cells in the battery pack allowing it to function at peak capacity.
Battery packs should be tuned up after every 10th charge/ discharge
cycle or whenever the pack no longer delivers the same amount of
work. To use the automatic tune-up mode, simply place the battery
pack in the charger and leave it for at least eight hours. The charger
will cycle through the following modes.
1. The red light will blink continuously indicating that the 1-hour
charge cycle has started.
2. When the 1-hour charge cycle is complete, the light will stay on
continuously and will no longer blink. This indicates that the pack
is fully charged and can be used at this time.
3. Whenever the pack is left in the charger after the initial 1-hour
charge, the charger will begin the Automatic Tune-Up™ Mode.
This mode continues up to 8 hours or until the individual cells in
the battery pack are equalized. The battery pack is ready for use
and can be removed at any time during the Tune-Up™ Mode.
4. Once the Automatic Tune-Up™ Mode is complete the charger
will transition to a maintenance charge; no indicator light shows
the completion of the Automatic Tune-Up™ Mode.
Using the Manual Tune-Up™ Mode
The manual Tune-up™ mode equalizes or balances the individual
cells in the battery pack at its peak capacity. This mode takes up to 8
hours to complete. Battery packs should be tuned up weekly or after
10 to 20 charge/discharge cycles or whenever the pack no longer
delivers the same amount of work.
1. To tune up your battery pack, place the battery in the charger as
usual. The red light will blink continuously indicating that the
charge cycle has started.
2. Press the Tune-Up™ Mode button any time after the charge cycle
has started. The red light will stop blinking momentarily, blink
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quickly 3 times, and then resume blinking continuously. The
charger is now tuning up the cells in your battery.
3. When the Tune-Up™ mode cycle is complete, the light will stay on
continuously. The pack is fully charged and may be used at this
time or left in the charger.
4. If you select Tune-Up™ Mode and then change your mind,
remove the battery from the charger. After 5 seconds, insert the
battery into the charger. The normal charge cycle will begin.
Important Charging Notes
1. Longest life and best performance can be obtained if the battery
pack is charged when the air temperature is between 65°F and 75°F
(18°- 24°C). DO NOT charge the battery pack in an air temperature
below +40°F(+4.5°C), or above +105°F (+40.5°C). This is important
and will prevent serious damage to the battery pack.
2. The charger and battery pack may become warm to touch while
charging. This is a normal condition, and does not indicate a
problem.
3. If the battery pack does not charge properly — (1) Check current at
receptacleby pluggingin a lampor otherappliance, (2)Check to see
if receptacle is connected to a light switch which turns power off
when you turn out the lights. (3) Move charger and battery pack to a
location where the surrounding air temperature is approximately
65°F - 75°F (18°- 24°C). (4) If charging problems persist, take or
send the tool, battery pack and charger to your local service center.
4. The battery pack should be recharged when it fails to produce
sufficient power on jobs which were easily done previously. DO NOT
CONTINUE to use under these conditions. Follow the charging
procedure.You mayalso charge a partiallyused pack whenever you
desire with no adverse affect on the battery pack.
TROUBLE INDICATORS:D
EWALT chargers are designed to detect
certain problems that can arise with battery packs which would be
indicated by the red light flashing at a fast rate (and continuous beeping
for 15 Minute Chargers). If this occurs, re-insert battery pack. If
problem persists, try a different battery pack to determine if the charger
is OK. If the new pack charges correctly, then the original pack is
defective and should be returned to a service center for recycling. If the
new battery pack elicits the same trouble indication as the original,
have charger tested at an authorized service center.
CHARGER CLEANING INSTRUCTIONS:
WARNING: Disconnect the charger from the AC outlet before
cleaning. Dirt and grease may be removed from the exterior of the
charger using a cloth or soft non-metallic brush. Do not use water or
any cleaning solutions.
Laser Safety
The DW073 Cordless Rotary Laser is listed as a CLASS IIIa LASER
PRODUCT and complies with the applicable requirements of title 21 of
the Code of Federal Regulations set forth by: the Department of
Health, Education, and Welfare; the Food and Drug Administration; the
Center for Devices and Radiological Health.
DANGER: THIS PRODUCT EMITS LASER RADIATION - DO
NOT STARE INTO THE LASER BEAM
•DO NOT use optical tools to view the laser
beam.
•Set the laser at a position above or below
eye level.
•DO NOT disassemble the laser tool. There are no user serviceable
parts inside.
•When using the laser overhead, always use a ceiling wire hanger
or equivalent material in addition to the wall
mount clamp to help secure the laser level
while mounting it to a wall. See “Wall
Mount” section for instructions.
•The use of controls or adjustments or
procedures other than those specified
herein may result in Hazardous Radiation
Exposure.
•DO NOT modify the laser in any way.
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Modifying the tool may result in Hazardous Laser Radiation
Exposure.
•Repairs and servicing must be performed by a qualified repair
facility.
•DO NOT allow children to operate the laser tool.
•DO NOT operate the laser around children.
•DO NOT Remove warning labels from the tool.
•Your operating conditions may require that you post a Laser
“DANGER” sign. One has been provided with this product.
Operating Tips
•Ensure battery is properly charged. If the “Power” LED light is
flashing, the battery needs to be charged.
•To extend battery life per charge, turn laser off when not working
with or marking the beam.
•To ensure the accuracy of your work, check to make sure your
laser is calibrated often. See “Field Calibration” section.
•Before attempting to level the laser, make sure the tool is
positioned on a relatively smooth surface.
•The more accurately centered the bubbles are in the vials, the
more accurate the laser beam will be for working.
•Your DEWALT laser is equipped with 2, side by side laser diodes
which produce an extremely bright, visible beam when the laser
head is rotated.
•Always mark the center of the laser line or dot.
•To increase working distance and accuracy, set up the laser in the
middle of your working area.
•When attaching to a tripod or wall, mount the laser securely.
•When working indoor a slow rotary head speed will produce a
visibly brighter line, a faster rotary head speed will produce a
visibly solid line.
•To increase beam visibility, wear the Laser Enhancement Glasses
provided and/or use the Laser Target Card to help find the beam.
•To transfer a laser dot mark use the Manual Rotation Button on
the top of the laser head for quick and easy control. See “Manual
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BATTERY
PACK
DUAL
LASER
ROTARY
HEAD
LEVELING
VIAL
BASE
LEVELING
KNOB LEVELING
KNOB
PIVOTING
HEAD
CARRYING
HANDLE
TWO-POSITION
PIVOTING HEAD
ADJUSTMENT
LEVER
WALL MOUNT
CLAMP
MANUAL HEAD ROTATION BUTTON
WALL MOUNT
CLAMP LOCK
RACK ‘N PINION
ADJUSTMENT KNOB
Head Rotation Button” section for instructions.
•Extreme temperature changes can cause movement of internal
parts that can effect accuracy. Check your accuracy often while
working.
•When working with the DEWALT Digital Laser Detector set the
laser variable speed control to the highest setting (600 RPM).
•Utilize the Bump Sensor feature on the laser to warn you if the tool
has been bumped after set up.
•If the laser has been dropped or has tipped over while set up on a
tripod, have the calibration system checked by a qualified service
center before continuing use.
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Installing and Removing the Battery Pack
NOTE: Make sure your battery pack is
fully charged.
To install the battery pack into the
rotary laser, rotate the battery adapter
plate (A) with applicable cut out for
9.6, 12, 14.4 volt pack (B) or the other
for the 18 volt pack (C) aligned with
the battery contacts facing inside the
cut out and slide the battery pack in
firmly until you hear the battery pack
lock in place.
To remove the battery pack from the
tool, push the battery in slightly, then
press the release buttons, and firmly pull the battery pack out of the
receptacle. The battery ejector pin (D) will aid in removing the pack.
To recharge the battery pack, insert it into the charger as described
in the charger section of this manual.
Control Panel
The Control Panel contains the ON/OFF/Variable Speed Switch,
ON/LOW Battery Indicator LED Light, and Bump Sensor Control
Buttons & LED Indicator Lights.
To Turn the Laser On:
Insert fully charged battery pack through proper cut out in battery
adapter plate. Ensure battery is firmly engaged.
Rotate the ON/OFF knob (A) clockwise to power the laser ON. The
dual laser diodes will turn on and the POWER LED (B) Light will
illuminate. The rotary head will remain stationary during the first 1/4
turn of the knob. Rotation of the laser head will begin as the Variable
Speed knob continues to be turned clockwise. The rotary head speed
is variable from 0-600 RPM. The POWER LED Light will remain lit as
long as the switch is turned ON and the battery remains charged.
Low Battery Indicator:
The DW073 is equipped with a Low Battery Indicator. A flashing
POWER LED Light indicates that the battery pack needs to be
recharged. All other electronic functions of the tool will shut down,
including the laser diodes. Follow recharging instructions for battery
packs as mentioned in this manual.
To Turn the Laser Off:
Rotate the ON/OFF Knob counterclockwise until it clicks OFF and the
laser diodes shut down. The POWER LED Light will no longer be
illuminated.
ROTATION SPEEDS
The Variable Speed Knob can be used to improve your visibility or
detection of the laser beam. The slower the rotation speed, the brighter
the laser line will appear. The faster the rotation speed, the more solid
the laser line appears. Always remember to operate your laser in HIGH
(600 RPM) speed when working with the Digital Laser Detector.
Remember: Slow Speed = Bright Beam; Fast Speed = Solid Beam
Bump Sensor
The DW073 Cordless Rotary Laser is equipped with a BUMP
SENSOR that will warn you if the laser level has been bumped after set
up and leveling. If properly used, this feature can help increase the
accuracy of your work by insuring that you continue to work off of the
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A
B
C
DE
F
A
B
C
D
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same level/plumb position that you initially set the laser to. The Bump
Sensor IS NOT AN OUT OF LEVEL SENSOR. It can not and will not
warn you if the laser has gone out of level without being bumped.
Check your level/plumb position often to ensure the accuracy of your
work.
BUMP SENSOR CONTROLS
The Bump Sensor is activated as soon as
you turn the laser power ON and will
remain active until you turn the laser
power OFF. Through the use of the Bump
Sensor Controls, you can choose how the
laser warns you in the event it has been
bumped. There are two settings to choose
from.
SETTING 1
FLASHING LED WARNING LIGHT ONLY
With a fully charged battery properly inserted, turn the laser power ON.
The Bump Sensor is automatically activated.
•Level the laser to establish a benchmark.
•Choose your rotation speed.
•If the laser level is bumped, the Bump Sensor WARNING LED (E)
will flash to warn you.
•To continue working, recheck the laser to your benchmark and re-
level if necessary.
•Press the Bump Sensor RESET Button (F) to clear the flashing LED
light and reset the Bump Sensor circuit.
SETTING 2
FLASHING LED WARNING LIGHT, FLASHING LASER DIODES,
AND ROTATION STOP
With a fully charged battery properly inserted, turn the laser power ON.
The Bump Sensor is automatically activated.
•Level the laser and establish a benchmark.
•Choose your rotation speed.
•Press the Bump Sensor SET Button (C) to activate the second
operating mode. The Bump Sensor
ON LED Light (D) will illuminate.
•If the laser level is bumped, the Bump
Sensor WARNING LED (E) will flash,
the dual laser diodes will flash and
rotation of the laser head will stop, if
the rotary head was spinning.
•To continue working, recheck the
laser to your benchmark and re-level
if necessary.
•Press the Bump Sensor RESET Button (F) to clear the flashing LED
light and reset the Bump Sensor circuit. The laser diodes will stop
flashing and the rotary head will begin spinning again. The Bump
Sensor ON LED Light will remain lit and the tool will remain in this
operating mode.
To return the circuit to setting 1, press the Bump Sensor SET Button
(C) once again. The ON LED Light (D) will shut off indicating that the
laser is in operating mode 1.
Two-Position Pivoting
Head
This tool has been designed with a Two-
Position Pivoting Head for quick and
easy adjustments on the job. The Two-
Position Pivoting Head can be used to
position the laser for both horizontal
(level) and vertical (plumb) applications
and to adjust the laser for use with the
built in Wall Mount. The Two-Position
A
A
B
C
A
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Pivoting Head is designed to lock the laser level into two
predetermined positions (level & plumb) through the use of a spring-
loaded detent pin. To make adjustments to the position of the laser
head follow these instructions.
1. Locate the Two-Position Pivoting Head Adjustment Lever (A) on the
side of the laser level, next to the “DANGER” warning label.
2. To pivot the laser head lift the Adjustment Lever approximately one
quarter of the way open, enough to disengage the spring-loaded
detent pin holding the laser head in position. DO NOT ATTEMPT
to fully open the Adjustment Lever, you may damage the spring-
loaded detent mechanism. The Adjustment Lever has been
designed to release the Pivoting Head when opened only one
quarter of the way.
3. While lifting the Adjustment Lever approximately one quarter of the
way open with one hand, pivot the laser head with your other hand
until it travels 90º to a stop.
4. Release the Adjustment Lever and make sure that the spring-
loaded detent pin locks into place. The laser head should now be
locked into position and ready for use.
5. Follow the instructions for leveling or plumbing the laser. For posi-
tioning the tool for use on a wall see the Wall Mount section.
6. To return the laser head to its original position repeat steps 2-4.
Wall, Floor & Tripod Mounts
The DW073 Cordless Rotary Laser has been designed with the most
common accessories built directly into the base of the tool. These
accessories allow the laser to be mounted onto tripods, positioned
directly on the floor, and attached to walls for drop ceiling installation
or other leveling jobs.
Mounting On a Tripod
1. Position the tripod on a smooth and level surface. Set tripod to
desired height.
2. Secure the laser to the tripod base by screwing the threaded knob
(A) on the tripod into the 5/8" x 11 threaded insert on the bottom of
the laser level. NOTE: Be sure the tripod you are working with has
a 5/8" x 11 threaded screw.
3. Use the Two-Position Pivoting Head Adjustment Lever to pivot the
laser head for a level or plumb setting.
4. Follow the instructions for leveling or plumbing the laser.
5. Turn the laser on; adjust rotation speed and controls as needed.
Floor Mount
The laser level can be positioned directly on the floor for leveling and
plumbing applications. Follow the instructions below for using the floor
mount.
1. Place the laser on a relatively smooth and level surface
2. Use the Two-Position Pivoting Head Adjustment Lever (A) to pivot
the laser head for a level or plumb setting.
3. Use the Base Leveling Knob (B) located under the battery pack to
stabilize the tool and aid in rough leveling.
4. In a plumb orientation the laser can be positioned over a mark and
fine adjustments of the laser position can be made using the Base
Rack 'N Pinion Knobs. TIP: It may be helpful to turn the power ON
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A
B
A
DC
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and spin the rotary head to set your mark. The Base Rack 'N Pinion
Locking Knob (D) is a wing nut style knob that will lock and unlock
the sliding base bracket. The Rack 'N Pinion Adjustment Knob (C)
rotates to slide the tool forward and back. TIP: You may need to
hold the laser base down while adjustments are made to the tool
while on the floor.
5. Follow the instructions for leveling or plumbing the laser.
6. Turn the laser on if not on already; adjust rotation speed and
controls as needed.
Wall Mount
The DW073 Cordless Rotary Laser has
been designed with a built-in Wall Mount for
attaching the tool to wall track to aid in
acoustical ceiling installation and other
specialty leveling projects. Follow the
instructions below for using the Wall Mount.
CAUTION: Before attaching the laser
level to wall track ensure that the track is
properly secured to the wall.
1. Use the Two-Position Pivoting Head
Adjustment Lever to pivot the laser head
into a plumb orientation.
2. Rotate the entire tool so that the battery pack is positioned at the
bottom of the tool and the Wall Mount Clamp is in position to be
attached to the wall track. See illustration at left for proper set-up.
3. With the Base Plate Measuring Scale facing you, rotate the Wall
Mount Clamp Locking Knob (A) towards you to open the clamp
jaws. Position the clamp jaws around the wall track and rotate the
Wall Mount Clamp Locking Knob away from you to close the clamp
jaws shut on the track. Ensure that the Wall Mount Clamp Locking
Knob is securely locked before proceeding.
CAUTION: Always use a ceiling wire hanger or equivalent material,
in addition to the wall mount clamp, to help secure the laser level
while mounting it to a wall. Thread the wire through the holes in the
roll cage above the Rack 'N Pinion Adjustment Knob (C) or above
the Rack 'N Pinion Locking Knob (D). Additionally, screws or nails
can be used to fasten the tool directly to the wall as a back up.
Screw/Nail holes (B) are located in the Base Plate next to the Base
Plate Measuring Scales.
4. The tool can be adjusted up and down to the desired offset height
for working. To change the height, loosen the Rack 'N Pinion
Locking Knob (D) located to the left of the laser head. TIP: You
may need to support the weight of the tool while the Rack 'N Pinion
Locking Knob is loosened. Turn the Rack 'N Pinion Adjustment
Knob (C) located to the right of the
laser head to move the laser level up
and down to set your height. Use the
Base Plate Measuring Scale to
pinpoint your mark. TIP: It may be
helpful to turn the power ON and spin
the rotary head to set your height.
Once you have positioned the laser
at your desired offset height, tighten
the Rack 'N Pinion Locking Knob to
maintain your mark.
5. Use the Base Leveling Knob (behind the battery) at the bottom of
the base plate to aid in positioning the tool against the wall.
6. Follow the instructions for leveling the laser. TIP: Remember the
front leveling knob controls the movement of the bubble in the front
vial, the side leveling knob controls the movement of the bubble in
the side vial.
7. Turn the laser on if not on already; adjust rotation speed and
controls as needed.
Horizontal Leveling
1. Set the laser on a relatively smooth and level surface such as a
Tripod or prepare the laser level to be attached to wall track using
the built-in Wall Mount feature. See “Wall Mount” section.
A
B
C
D
A
B
C
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2. Use the Two-Position Pivoting Head Adjustment Lever to pivot the
laser head to a level setting for projecting a horizontal reference
beam. In this position the Manual Head Rotation Button (A) should
be pointing up towards the ceiling or sky.
3. The leveling knobs (B) control the orientation of the laser head on
the metal leveling plates and effect the movement of the bubbles in
the vials (C). When the laser level is placed in a level position the
front leveling knob controls the movement of the bubble in the front
vial. The side leveling knob controls the movement of the bubble in
the side vial. NOTE: The same leveling rules apply to the tool when
being used with the Wall Mount feature.
4. To level the laser, the bubbles in both the
front and side vials need to be centered
within the vials. TIP: The more accurately
you can center the bubbles within the
vials the more accurate your horizontal
laser reference beam will be.
5. To level the laser, turn the leveling knob
towards the bubble until the bubble is
centered in the vial. TIP: To move the bubble in the front vial to the
right, turn the front leveling knob to the left. To move the bubble in
the front vial to the left, turn the leveling knob to the right. Repeat the
procedure for the side vial.
6. Turn the laser on if not on already; adjust rotation speed and
controls as needed.
7. To project a level laser reference plane, adjust the rotation speed for
preferred visibility. Remember: Slow Speed = Bright Beam; Fast
Speed = Solid Beam
Vertical Plumbing
1. Set the laser on a relatively smooth and level surface. The tool
should be positioned on the large base plate under the battery pack.
Utilize the Base Leveling Knob (A) to roughly position the laser.
2. Use the Two-Position Pivoting Head Adjustment Lever to pivot the
laser head to a plumb setting for projecting a vertical reference
beam. In this position the pivoting laser head should be directly over
the Wall Mount Clamp and the Control Panel should be facing up
towards the ceiling or sky.
3. To plumb the laser, only the bubble in the Plumb Vial (D) needs to
be centered. TIP: The more accurately you can position the bubble
within the vial the more accurate your vertical laser reference beam
will be.
4. Looking over the top of the laser, turn the Plumb Leveling Knob
(B)(which is located on the side of the pivoting laser head in this
orientation) to move the bubble within the Plumb Vial (D). Turn the
plumb leveling knob towards the bubble until the bubble is centered
in the vial. TIP: Turn the knob in the opposite direction you need
the bubble to move.
5. Use the Plumb Beam Alignment Knob (C)(which is the knob next
to the Plumb Vial) to adjust the plumb laser reference plane over
your mark.
6. Turn the laser on if not on already; adjust rotation speed and
controls as needed.
7. To project a plumb laser reference plane, adjust
the rotation speed for preferred visibility.
Remember: Slow Speed = Bright Beam; Fast
Speed = Solid Beam
Manual Head Rotation Button
The laser has been designed with a protective cap
over the rotary head to prevent accidental damage
from work site activities. You can still access the
rotary head and manually direct the beam to
establish or transfer a mark. To manually rotate the
laser beam follow the instructions below.
If the laser is turned OFF, rotate the ON/OFF knob clockwise a 1/4
turn or less. Ensure that the laser diodes are powered on and that the
rotary head is not spinning. If the laser is ON and spinning, rotate the
ON/OFF knob counterclockwise until rotation of the head stops.
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Depress the spring loaded Manual Head Rotation Button (A) on the top
of the protective cap. The button will make contact with the rotary laser
head. While maintaining pressure on the Manual Head Rotation
Button, you can now turn the button and direct the laser beams in the
direction of your mark.
Since the laser has been designed with dual, side by side laser diodes,
you may see 2 laser dots on the object you are projecting the beam
onto. Marks can be made using either laser dot. Mark the center of the
dot.
DO NOT attempt to use the Manual Head Rotation Button while the
rotary head is spinning.
While using the Manual Head Rotation Button, it is recommended that
you set the Bump Sensor to Setting 1. See Bump Sensor operation.
Laser Enhancement Glasses
The DEWALT Laser Kit includes a pair of Laser
Enhancement Glasses. These red lens
glasses improve the visibility of the laser beam
under bright light conditions or over long
distances. These glasses are not required to
operate the laser but are helpful. Working best indoors, the lens filters
out ambient light and intensifies the red laser dot
or line to your eyes.
CAUTION: These glasses are not ANSI
approved safety glasses and should not be worn
while operating other tools. These glasses do not
keep the laser beam from entering your eyes.
DANGER: NEVER STARE DIRECTLY INTO
THE LASER BEAM, WITH OR WITHOUT
THESE GLASSES.
Target Card
The DEWALT Rotary Laser Kit includes a Laser
Target Card to aid in locating and marking the laser
beam. The target card enhances the visibility of the laser beam as the
beam crosses over the card. The card is marked with inch and metric
scales. The laser beam passes through the red plastic and reflects off
of the reflective tape on the reverse side. The magnets at the top hold
the target card to ceiling track or steel studs to determine plumb and
level positions.
Digital Laser Detector
The DEWALT Digital Laser Detector enables you to locate a laser beam
emitted by a Rotary Laser in bright light conditions or over long
distances. The detector can be used in both indoor and outdoor
situations where it is difficult to see the laser beam. The detector is not
for use with non-rotating lasers.
The detector gives both visual and audio signals as to the location of
the laser beam as the beam crosses over the detector. The DEWALT
Digital Laser Detector is compatible with most rotary lasers on the
market today. The clamp attaches the Digital Laser Detector to grade
rods, leveling poles, wall studs or posts. The detector can also be
mounted to ceiling track by attaching the magnets on the top of the
detector to the track.
If this laser kit contains a DEWALT Digital Laser Detector, a separate
instruction manual has been included. For proper use and operation
read and understand the Detector manual before use.
POWER
ON
VOLUME
LEVEL
BATTERY
COMPARTMENT
DW073/611118-01 5/13/02 4:37 PM Page 11

Applications
The DW073 Cordless Rotary Laser is a versatile and accurate tool that
can be used for both interior and exterior construction and remodeling
projects. The laser level can be adjusted and positioned for use on
dozens of horizontal (level) and vertical (plumb) applications. A few of
the most common applications are listed below. General user steps are
listed for each application to serve as a guide. They are not intended to
provide you with detailed instructions to complete each leveling or
plumbing project.
Ceiling Installation
1. Follow the instructions in this manual for operating the built-in Wall
Mount.
2. Securely attach the tool to the wall track and adjust the laser to your
offset height.
3. Follow the instructions for leveling the laser.
TIP: Remember the front leveling knob controls the front bubble
vial, the side leveling knob controls the side bubble vial.
4. Turn the laser on if not on already; adjust rotation speed and
controls as needed. Remember: Slow Speed = Bright Beam; Fast
Speed = Solid Beam
5. Use the Laser Target Card to help you find the rotating laser beam
reference plane. Attach the magnetic base of the Laser Target Card
to the ceiling track cross sections. TIP: Wear the Laser Enhance-
ment Glasses to help improve the visibility of the laser beam to your
eyes.
6. You can now begin to accurately level the ceiling grid/track for
ceiling installation.
Wall Layout
1. Follow the instructions in this manual for operating the built-in Floor
Mount.
2. Use the Two-Position Pivoting Head Adjustment Knob to pivot the
laser head for a plumb setting.
3. Position the laser over a predetermined benchmark on the floor and
adjust the tool by utilizing the Rack 'N Pinion Adjustment Knobs.
4. Follow the instructions for plumbing the laser.
5. Turn the laser on if not on already; adjust rotation speed and
controls as needed. Remember: Slow Speed = Bright Beam; Fast
Speed = Solid Beam
6. Use the Laser Target Card to help you find the rotating laser beam
reference plane and to transfer your mark. TIP: Wear the Laser
Enhancement Glasses to help improve the visibility of the laser
beam to your eyes.
7. You can now begin to plumb and layout your walls by accurately
transferring the reference points on the floor to the ceiling.
Foundations
1. Follow the instructions in this manual for setting up the laser on a
Tripod.
2. Use the Two-Position Pivoting Head Adjustment Knob to pivot the
laser head for a level setting.
3. Follow the instructions for leveling the laser.
4. Turn the laser on if not on already; adjust rotation speed and
controls as needed. Remember: When working with the DEWALT
Digital Laser Detector set the variable control speed to the highest
setting (600 RPM)
5. Mount the DEWALT Digital Laser Detector to the Detector Clamp
and attach the clamp onto a Grade Rod or other leveling rod.
6. Adjust the clamp to the proper height on the rod for detecting the
rotating laser beam and for leveling the foundation.
7. You can now begin to level the area for the foundation.
Deck Building
1. Follow the instructions in this manual for setting up the laser on a
Tripod.
2. Use the Two-Position Pivoting Head Adjustment Knob to pivot the
laser head for a level setting.
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3. Follow the instructions for leveling the laser.
4. Turn the laser on if not on already; adjust rotation speed and
controls as needed. Remember: When
working with the DEWALT Digital Laser
Detector set the variable control speed to
the highest setting (600 RPM)
5. Use the DEWALT Digital Laser Detector to
locate the rotating laser beam and to set
your marks on the posts.
6. You can now begin to lay out and level the
deck.
Maintenance
•To maintain the accuracy of your work,
have the laser checked often to make sure
it is properly calibrated.
•Calibration checks and other maintenance repairs can be
performed by DEWALT service centers. Two free calibration checks
are included under the DEWALT One Year Free Service Contract.
•When not in use, store the laser in the kit box provided.
•Do not store your laser in the kit box if the laser is wet. Allow laser
to air dry and dry exterior parts with a soft dry cloth.
•Do not store your laser at temperatures below 0˚ F or above 105˚F.
CLEANING: Exterior plastic parts may be cleaned with a damp
cloth and mild detergent. Although these parts are highly solvent
resistant, NEVER use solvents. Use a soft dry cloth to remove
moisture from tool and accessories before storage. Never use
compressed air to clean the laser.
Field Calibration Check
This section provides instructions by which you can perform simple
field calibration checks of your DEWALT Rotary Laser. These checks
cannot take the place of professional calibration done by a DEWALT
service center.
These instructions will help you check for the three types of out-of-level
errors.
•Tilt Error- checks that rotation of the head in your Rotary Laser is
perfectly level.
•Cone Error- checks that the laser beams are not at an angle
relative to the level head.
•Plumb Error- checks the calibration of the plumb leveling vial.
TILT ERROR CHECKS
Horizontal Checking for Front to Back Tilt Error
•Set up a tripod midway between 2 vertical surfaces about 100'
apart.
•Mount your Rotary Laser on a tripod so it is aimed front-to-back
toward the vertical surfaces. (next page)
•Level the Laser, following the procedure in the “Horizontal Leveling”
section of this manual.
•Quick Check:
1. Compare the position of the bubbles in t h e
front and rear vials (Fig. AA).
APPROX. 50 FT.APPROX. 50 FT.
APPROX. 50 FT.APPROX. 50 FT.
BEAM
BEAM
FIG. AA - UNIT FACING RIGHT
FIG. BB - UNIT FACING LEFT
SURFACE 1 SURFACE 2
SURFACE 1 SURFACE 2
DW073/611118-01 5/13/02 4:37 PM Page 13

2. If the two bubbles are not in about the same position in their
vials, (both about centered) have your Rotary Laser
calibrated at a DEWALT service center.
•Turn the unit on so that the lasers are on and rotating.
•Go to surface #1 and mark the center of the beam. If it is difficult to
see the beam, use your Laser Enhancement Glasses, Target Card
or optional DW0732 Digital Laser Detector.
•Go to surface #2 and mark the center of the beam.
•Loosen the screw holding the Laser to the tripod, but do not remove
the Laser.
•Rotate the Laser 180˚ (Fig. BB)
•Level the Laser again, following the procedure in the “Horizontal
Leveling” section of this manual.
•Turn the unit on if it is not already on, so the lasers are on and
rotating.
•Go to surface #1 and mark the center of the beam.
•Go to surface #2 and mark the center of the beam.
•Measure the difference between the marks on surface #1.
•Measure the difference between the marks on surface #2.
•The difference between the marks on surface #1 must equal the
difference between the marks on surface #2. If these are not equal,
there was user set up or marking error.
•If the difference between the marks on surface #1 is 1/4" or less, the
Laser is properly calibrated.
•If the difference between the marks on surface #1 is more than 1/4",
have your Rotary Laser calibrated at a DEWALT service center.
HORIZONTAL CHECKING FOR SIDE-TO-SIDE TILT ERROR
•Set up tripod midway between 2 vertical surfaces 100' from each
other.
•Mount your Rotary Laser on a tripod so that it is aimed side-to-side
toward the vertical surfaces.
•Level the Laser, following the procedure in the “Horizontal Leveling”
section of this manual.
•Turn the unit on so that the lasers are on and rotating.
•Go to surface #1 and mark the center of the beam. If is difficult to
see the beam use one of the aids mentioned earlier.
•Go to surface #2 and mark the center of the beam.
•Loosen the screw holding the Laser to the tripod but do not remove
the Laser.
•Rotate the Laser 180˚.
•Level the Laser again, following the procedure in the “Horizontal
Leveling” section.
•Turn the unit on if not already on, so that the lasers are on and
rotating.
•Go to surface #1 and mark the center of the beam.
•Go to surface #2 and mark the center of the beam.
•The difference between the marks on surface #1 must equal the
difference between the marks on surface #2. If these are not equal,
there was user set up or marking error.
•If the difference between the marks on surface #1 is 1/4" or less, the
Laser is properly calibrated.
•If the difference between the marks on surface #1 is more than 1/4",
have your Rotary Laser calibrated at a DEWALT service center.
CONE ERROR CHECK
•Your DEWALT Rotary Laser contains 2 laser diode assemblies. It is
highly unlikely that both lasers would have shifted by identical
amounts. The easiest way to test for possible “cone error” is to
compare the two laser beams.
•Level the laser, following instructions in the “Horizontal Leveling”
section of this manual.
•Quick Check:
• Turn the unit on so that the lasers are on and rotating.
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• You should see a single red line on a vertical surface. If you see
a double line, have your Rotary Laser calibrated by a DEWALT
service center.
•Turn unit on so that the lasers are on but NOT rotating.
•Using the Manual Rotation Button, rotate the head so that the lasers
appear as two dots on a vertical surface about 25 feet away.
•Compare the vertical position of the center of each laser beam.
The centers should be within 3/32"(vertically) of each other.
•If the centers of the two beams differ by more than 3/32" (vertically),
then have your Rotary Laser calibrated at a DEWALT service center.
PLUMB ERROR CHECK
•Set up a tripod about 25 feet from a vertical surface.
•Mount your Rotary Laser on the tripod.
•Following the procedure in the “Two Position Pivoting Head” section
of this manual, set the Rotary Laser head in the plumb position.
•Hang a plumb bob from the vertical surface.
•Level the laser, following instructions in the “Vertical Plumbing”
section of this manual.
•Turn the unit on so that the lasers are on and rotating.
•Rotate the laser on the tripod so that the beam is in the line with
the plumb bob.
•Ensure that the laser is still level.
•If the beam lies along the same line as the plumb bob string, then
the calibration is acceptable.
•If the beam does not lie along the same line as the plumb bob string,
have your Rotary Laser calibrated at a DEWALT service center.
Accessories
Recommended accessories for use with your tool are available at extra
cost from your local service center.
CAUTION: The use of any non-recommended accessory may be
hazardous. If you need any assistance in locating any accessory,
please contact DEWALT Industrial Tool Co., 701 East Joppa Road,
Baltimore, MD 21286 or call 1-800-4-DEWALT. (1-800-433-9258) See
our catalog on the World Wide Web at www.DEWALT.com.
Important
To assure product SAFETY and RELIABILITY, repairs, maintenance
and adjustment should be performed by certified service centers or
other qualified service organizations, always using identical replace-
ment parts.
Full One Year Warranty
DEWALT heavy duty industrial tools are warranted for one year from
date of purchase. We will repair, without charge, any defects due to
faulty materials or workmanship. For warranty repair information,
call 1-800-4-DEWALT. This warranty does not apply to accessories or
damage caused where repairs have been made or attempted by
others. This warranty gives you specific legal rights and you may
have other rights which vary in certain states or provinces.
In addition to the warranty, DEWALT tools are covered by our:
30 DAY NO RISK SATISFACTION GUARANTEE
If you are not completely satisfied with the performance of your
DEWALT heavy duty industrial tool, simply return it to the participating
seller within 30 days for a full refund. Please return the complete unit,
transportation prepaid. Proof of purchase may be required.
FREE WARNING LABEL REPLACEMENT: If your warning labels
become illegible or are missing, call 1-800-4-DEWALT for a free
replacement.
SAVE THESE INSTRUCTIONS
FOR FUTURE USE
DW073/611118-01 5/13/02 4:37 PM Page 15

Troubleshooting Guide -
This guide is intended to assist you in determining why the laser is not
operating to your expectations. These are some of the most commonly
asked questions or observances. If you still have questions or
problems with your DEWALT laser after completely reading through this
Troubleshooting Guide and instruction manual, call our toll free Hot
Line at 1-800-4-DEWALT or visit one of our service centers.
THE BATTERY WILL NOT LOCK IN PLACE
See “Installing the Battery Pack”
THE LASER WILL NOT TURN ON
Ensure that a fully charged battery is properly inserted into the tool.
TIP: See “Installing the Battery Pack” section. Rotate the ON/OFF
VARIABLE SPEED Knob clockwise to turn the power on. TIP: See
“Control Panel” section. If the laser still doesn't turn on, take the tool to
a DEWALT service center.
AFTER TURNING THE LASER ON, 2 LASER DOTS ARE
PROJECTED FROM THE ROTARY HEAD
The DW073 Cordless Rotary Laser has been designed with dual, side
by side laser diodes. Two diodes allows the laser to avoid blind spots
which could potentially be created by the protective cap over the rotary
head and also produce an extremely bright beam when the rotary laser
head is spun.
THE LASER IS PROJECTING 2 LASER LINES WHEN THE LASER
HEAD IS ROTATED
Take the laser to a DEWALT service center for calibration.
THE POWER LED LIGHT IS FLASHING, THE ROTARY HEAD HAS
STOPPED SPINNING AND THE LASER DIODES HAVE SHUT
DOWN.
This indicates that the battery pack needs to be recharged. TIP: See
“Removing the Battery Pack” and “Charging Procedures.”
THE BUMP SENSOR WARNING LED LIGHT IS FLASHING
See “Bump Sensor” section for operating instructions.
THE BUMP SENSOR WILL NOT TURN THE LASER OFF AFTER
THE TOOL HAS GONE OUT OF LEVEL
The Bump Sensor is NOT AN OUT OF LEVEL SENSOR. See “Bump
Sensor” section.
THE ROTATING LASER BEAM IS DIFFICULT TO SEE INDOORS
Ambient light conditions will influence the visibility of the laser beam. To
aid in beam visibility, adjust the rotation speed using the ON/OFF
VARIABLE SPEED SWITCH. Remember: Slow Speed = Bright
Beam; Fast Speed = Solid Beam. Wearing the Laser Enhancement
Glasses can also help you see the beam better.
I NEED TO ADJUST THE LASER FOR A VERTICAL / PLUMB
ORIENTATION
See “Two-Position Pivoting Head” section.
I NEED TO ADJUST THE LASER FOR MOUNTING ON A WALL
See “Wall Mount” section.
THE LASER ROCKS WHEN POSITIONED ON THE FLOOR
The laser is designed to sit on 3 contact points for maximum stability.
Two of these contact points are stationary while the third is adjustable.
To roughly position the tool on the floor adjust the Base Leveling Knob,
which is located under the battery pack.
I NEED TO STOP THE ROTARY HEAD ROTATION TO DIRECT THE
LASER DOT ONTO A MARK OR TO SET A MARK
See “Manual Head Rotation” section.
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