DeWalt LaserChalkLine DCE088G User manual

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DOC100270395
DCE088G, DCE088R LaserChalkLine™ Laser Line Generator

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User Manual
Contents
• Safety
• Product Overview
• Batteries and Power
• Operation
• Accuracy Check and Calibration
• Specications
User Safety
WARNING:
Read and understand all instructions. Failure
to follow all instructions listed below may result in
electric shock, re and/or serious personal injury.
WARNING:
Laser Radiation Exposure. Do not disassemble
or modify the laser level. There are no user
serviceable parts inside. Serious eye injury
could result.
WARNING:
Hazardous Radiation. Use of controls or
adjustments or performance of procedures other than
those specied herein may result in hazardous
radiation exposure.
CAUTION:
LASER RADIATION - DO NOT STARE INTO THE
LASER BEAM. Class 2 Laser Product.
• The label on your tool may include the following symbols.
V volts
mW milliwatts
Ah Ampere Hours
laser warning symbol
nm wavelength in nanometers
2 Class 2 Laser
Do not stare into the laser beam.
Warning Labels
For your convenience and safety, the following labels are on
your laser.
WARNING: To reduce the risk of injury, user
must read instruction manual.
WARNING: LASER RADIATION. DO NOT
STARE INTO BEAM. Class 2 Laser Product
• Do not operate the laser in explosive atmospheres,
such as in the presence of ammable liquids, gases, or
dust. Power tools create sparks which may ignite the dust
or fumes.
• Use the laser only with the specically designated
batteries. Use of any other batteries may create a risk
of re.
• Store idle laser out of reach of children and other
untrained persons. Lasers are dangerous in the hands of
untrained users.
• Use only accessories that are recommended by the
manufacturer for your model. Accessories that may be
suitable for one laser, may create a risk of injury when used
on another laser.
• Tool service must be performed only by qualied
repair personnel. Service or maintenance performed by
unqualied personnel may result in injury. To locate your
nearest DeWALT service center go to
http://www.dewalt.com on the Internet.
• Do not use optical tools such as a telescope or transit
to view the laser beam. Serious eye injury could result.
• Do not place the laser in a position which may cause
anyone to intentionally or unintentionally stare into the
laser beam. Serious eye injury could result.
• Turn the laser off when it is not in use. Leaving the laser
on increases the risk of staring into the laser beam.
• Do not disassemble the laser tool. There are no user
serviceable parts inside.
• Do not modify the laser in any way. Modifying the tool
may result in Hazardous Laser Radiation Exposure.
• Do not operate the laser around children or allow
children to operate the laser. Serious eye injury may
result.
User Manual

5
• Do not remove or deface warning labels. Removing
labels increases the risk of exposure to radiation.
• Position the laser securely on a level surface. Damage
to the laser or serious injury could result if the laser falls
Laser Information
• The DCE088R and DCE088G Laser Levels are Class 2
laser products.
• The DCE088R and DCE088G lasers are self-leveling
laser tools that can be used inside and outside for
horizontal (level), vertical and plumb alignment projects.
WARNING:
Read and understand all instructions. Failure to
follow all instructions listed below may result in
electric shock, re and/or serious personal injury.
Work Area
• Keep your work area clean and well lit. Cluttered benches
and dark areas invite accidents.
• Do not operate laser tools in explosive atmospheres, such
as in the presence of ammable liquids, gases, or dust.
• Keep bystanders, children, and visitors away while operating
a laser tool. Distractions can cause you to lose control
Electrical Safety
• Use battery operated tool only with the specically
designed batteries. Use of any other batteries may create
a risk of re.
Product Overview
WARNING:
Never modify the tool or any part of it. Damage to the
laser or personal injury could result.
Figure 3 - Battery Interface A
Figure 2 - Pendulum Lock B
Figure 2 - Keypad C
Figure 5B - ON/OFF button: horizontal laser line D
Figure 5B - ON/OFF button: vertical laser line E
Figure 5B - Battery Meter F
Figure 3 - Magnetic pivot bracket G
Figure 3 - Keyhole slot H
Figure 5A - Tripod thread tting (1/4 - 20” & 5/8-11) I
Figure 5A - Ceiling Mount J
Figure 5A - Clamp K
Figure 5A - Screw Hole M
Batteries and Power
• This tool is powered by the following DeWALT 10.8V Battery
packs: DCB120, DCB127 or may also be powered using the
DEWALT AA Starter pack which can carry 4 x AA batteries.
Note: The AA starter pack is recommended only for use with
the red laser
Battery Installation / Removal
(See gure 3)
Using the AA Starter Pack:
CAUTION:
The AA starter pack is designed specically for
use only with the DeWALT 10.8V compatible laser
products and cannot be used with any other tools Do
not attempt to modify the product.
To install batteries:
• Lift up the battery compartment cover as shown in Figure
4.
• Insert four fresh AA batteries in the compartment, placing
the batteries according to (+) and (–) on the inside of the
compartment.
• Install the AA starter Battery pack as shown in Figure 3.
Using the 10.8V DEWALT Rechargeable
Pack:
• Install the 10.8V Battery pack as shown in
Figure 3.
WARNING:
Batteries can explode, or leak, and can cause
injury or re. To reduce this risk carefully follow all
• Carefully follow all instructions and warnings on the battery
instructions on the label and package and accompanying
Battery Safety Leaet.
• Always insert batteries correctly with regard to polarity
(+ and –), marked on the battery and the equipment.
• Do not short battery terminals.
• Do not charge disposable batteries.
• Do not mix old and new batteries. Replace all of them at the
same time with new batteries of the same brand and type.

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User Manual
• Remove dead batteries immediately and dispose of per
local codes.
• Do not dispose of batteries in re.
• Keep batteries out of reach of children.
• Remove batteries when the device is not in use
• Use only the charger specied for your rechargeable
battery pack.
Personal Safety
• Stay alert, watch what you are doing and use common
sense when operating a laser tool. Do not use tool while
tired or under the inuence of drugs, alcohol, or medication.
A moment of inattention while operating power tools may
result in serious personal injury.
• 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
may be required for appropriate conditions.
Tool Use and Care
• Do not use tool if switch does not turn it on or off. Any tool
that cannot be controlled with the switch is dangerous and
must be repaired.
• Store idle tools out of reach of children and other untrained
persons. Tools are dangerous in the hands of untrained
users.
• Use only accessories that are recommended by the
manufacturer for your model. Accessories that may be
suitable for one tool, may become hazardous when used
on another tool.
Service
• Tool service must be performed only by qualied repair
personnel. Service or maintenance performed by unqualied
personnel could result in a risk of injury.
• When servicing a tool, use only identical replacement
parts. Follow instructions in the Maintenance section of
this manual. Use of unauthorized parts or failure to follow
Maintenance Instructions may create a risk of electric shock
or injury.
To locate your nearest DeWALT service center go to http://www.
dewalt.com on the Internet.
Operating Tips
• Use only new, high-quality, name brand AA batteries or
specied rechargeable DEWALT 10.8V Li-Ion pack for best
results.
• Ensure batteries are in good working condition. If the low
battery red indicator light is ashing, the batteries need
replacement.
• To extend battery life, turn laser off when not working with
the beam.
• To ensure the accuracy of your work, check to make sure
your laser is calibrated often. See Field Calibration Check.
• Before attempting to use the laser, make sure it is
positioned securely, on a smooth, at surface.
• Always mark the center of the beam created by the laser.
• Extreme temperature changes may cause movement of
internal parts that can affect accuracy. Check your accuracy
often while working. See Field Calibration Check.
• If the laser has been dropped, check to make sure your
laser is still calibrated. See Field Calibration Check.
• Place the laser on a smooth, at, stable surface that is level
in both directions.
Low Battery Indication
The DCE088R and DCE088G lasers are equipped with
a battery gauge as shown in Figure 5B. The battery gauge
indicates remaining power with each LED representing 25%.
The bottom LED will illuminate and blink indicating that the level
is low (below 12.5%) and the batteries need to be replaced. The
laser may continue to operate for a short time while the batteries
continue to drain, but the beam(s) will quickly dim. After fresh
batteries are installed and the laser is turned on again, the laser
beam(s) will return to full brightness and the battery indicator
level will indicate full capacity. (A ashing laser beam is not
caused by low batteries; see Out of Tilt Range Indicator.) If all
4 LED’s on the battery meter LED’s continuously ash this does
not indicate a low battery; see “The Battery Meter LED’s Flash”
under Troubleshooting.
Operation
To Turn the Lasers On and Off
(See Figure 2, 5)
With the laser off, place it on a at surface. This model has
a pendulum locking switch Band a keypad Cto activate the
laser beams with two ON/OFF buttons; one for a horizontal
laser line Dand one for a vertical laser line E. Each laser line
is powered on by moving the pendulum lock switch Bto the

7
UNLOCKED/ON position and pressing the required ON/OFF
button on the keypad. The laser lines can be powered one at
a time or at the same time. Pressing the ON/OFF buttons again
turns the laser lines off. The pendulum locking switch disables
the lasers as well as locking the pendulum, and should always
be placed in the LOCKED/OFF position when the laser is not
in use. If the pendulum lock switch is not placed in the lock
position all 4 LED’s will continuously ash on the Battery Meter.
Using the Lasers
Out of LEVEL Range Indicator
The lasers are designed to self-level. If the laser has been tilted
so much that it cannot self-level (> 4° ), the laser beam will
ash. There are two ashing sequences associated with the out
of level condition: (i) between 4° and 10° the beams ash with
a constant blink cycle; (ii) at angles greater than 10° the beams
ash with a three blink cycle. When the beams ash the laser is
not level (or plumb) and should not be used for determining
or marking level or plumb. Try repositioning the laser on
a more level surface.
Using the Pivot Bracket (See gure 3)
The lasers have a magnetic pivot bracket Gpermanently
attached to the units. This bracket allows the unit to be mounted
to any upright surface made of steel or iron. Common examples
of suitable surfaces include steel framing studs, steel door
frames and structural steel beams. The bracket also has
a keyhole slot Hallowing the unit to be hung from a nail or
screw on any kind of surface. Position the laser and/or wall
mount on a stable surface. Serious personal injury or damage to
the laser may result if the laser falls.
Using the Laser with the CEILING Mount
(See Figure 5)
The laser ceiling mount J(if included) offers more mounting
options for the laser. The ceiling mount has a clamp at one
end K which can be xed to a wall angle for acoustic ceiling
installation. At each end of the ceiling mount is a screw hole M
, allowing the ceiling mount to be attached to any surface with
a nail or screw.
Once the ceiling mount is secured, its steel plate provides
a surface to which the magnetic pivot bracket Gcan be
attached. The position of the laser can then be ne-tuned by
sliding the magnetic pivot bracket up or down on the wall mount.
Using the Lasers with Accessories
The lasers are equipped with 1/4 - 20 and 5/8 -11 female
threads on the bottom of the unit. This thread is to
accommodate current or future DeWALT accessories. Only use
DeWALT accessories specied for use with this product. Follow
the directions included with the accessory.
CAUTION:
The use of any other accessory not recommended for
use with this tool could be hazardous.
If you need any assistance in locating any accessory, please
contact your nearest DeWALT service center or go to http://
www.dewalt.com on the Internet.
Leveling the Lasers
As long as the lasers are properly calibrated, the lasers are
self-leveling. Each laser is calibrated at the factory to nd level
as long as it is positioned on a at surface within ± 4° of level.
No manual adjustments must be made.
Maintenance
• To maintain the accuracy of your work, check the laser often
to make sure it is properly calibrated. See Field Calibration
Check.
• Calibration checks and other maintenance repairs may be
performed by DeWALT service centers.
• When not in use, store the laser in the kit box provided. Do
not store your laser at temperatures below -20 ˚C (5 ˚F) or
above 60 ˚C (140 ˚F).
• Do not store your laser in the kit box if the laser is wet.
The laser should be dried rst with a soft dry cloth prior to
storage.
Cleaning
Exterior plastic parts may be cleaned with a damp cloth.
Although these parts are solvent resistant, NEVER use
solvents. Use a soft, dry cloth to remove moisture from the tool
before storage.

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User Manual
3. Mark the center of the beam at two locations c, dat least
30’ (9 m) apart.
4. Reposition the laser to the opposite end of the wall.
5. Turn on the laser’s horizontal beam and pivot the laser back
toward the rst end of the wall and approximately parallel to
the adjacent wall.
6. Adjust the height of the laser so that the center of the beam
is aligned with the nearest mark d.
7. Mark the center of the beam edirectly above or below the
farthest mark c.
8. Measure the distance between these two marks c, e.
9. If the measurement is greater than the values shown below,
the laser must be serviced at an authorized service center.
Checking Accuracy –
Vertical Beam (See Figure 8)
Checking the vertical (plumb) calibration of the laser can be
most accurately done when there is a substantial amount of
vertical height available, ideally 30’ (9 m), with one person on
the oor positioning the laser and another person near a ceiling
to mark the position of the beam. It is important to conduct
a calibration check using a distance no shorter than the distance
of the applications for which the tool will be used.
1. Start by marking a 5’ (1.5 m) line on the oor.
2. Turn on the laser’s vertical beam and position the unit at
one end of the line, facing the line.
3. Adjust the unit so its beam is aligned and centered on the
line on the oor.
4. Mark the position of the laser beam on the ceiling f. Mark
the center of the laser beam directly over the midpoint of the
line on the oor.
5. Reposition the laser at the other end of the line on the
oor. Adjust the unit once again so its beam is aligned and
centered on the line on the oor.
6. Mark the position of the laser beam on the ceiling g,
directly beside the rst mark f.
7. Measure the distance between these two marks.
8. If the measurement is greater than the values shown below,
the laser must be serviced at an authorized service center.
Distance Between Walls Allowable Distance
Between Marks
9 m (30’) 6.0 mm (1/4”)
12 m (40’) 8.0 mm (5/16”)
15 m (50’) 10.0 mm (13/32”)
Accuracy Check and
Calibration
Checking Accuracy –
Horizontal Beam, Scan Direction (See gure 6)
Checking the horizontal scan calibration of the laser requires
two walls 30’ (9 m) apart. It is important to conduct a calibration
check using a distance no shorter than the distance of the
applications for which the tool will be used.
1. Attach the laser to a wall using its pivot bracket. Make sure
the laser is facing straight ahead.
2. Turn on the laser’s horizontal beam and pivot the laser
approximately 45˚ so that the right-most end of the laser
line is striking the opposing wall at a distance of at least 30’
(9 m). Mark the center of the beam a.
3. Pivot the laser approximately 30˚ to bring the left-most end
of the laser line around to the mark made in Step 2. Mark
the center of the beam b.
4. Measure the vertical distance between the marks.
5. If the measurement is greater than the values shown below,
the laser must be serviced at an authorized service center.
Distance Between Walls Allowable Distance
Between Marks
9 m (30’) 3.0 mm (1/8”)
12 m (40’) 4.0 mm (5/32”)
15 m (50’) 5.0 mm (7/32”)
Checking Accuracy –
Horizontal Beam, Pitch Direction (See gure 7)
Checking the horizontal pitch calibration of the laser requires
a single wall at least 30’ (9 m) long. It is important to conduct
a calibration check using a distance no shorter than the distance
of the applications for which the tool will be used.
1. Attach the laser to one end of a wall using its pivot bracket.
2. Turn on the laser’s horizontal beam and pivot the laser
toward the opposite end of the wall and approximately
parallel to the adjacent wall.

9
Troubleshooting
The Laser Does Not Turn On
• Make sure AA batteries (when used) are installed correctly
according to (+) and (–) on the inside of the battery door.
• Make sure the batteries or rechargeable pack are in proper
working condition. If in doubt, try installing new batteries.
• Make sure that the battery contacts are clean and free of
rust or corrosion. Be sure to keep the laser level dry and use
only new, high-quality, name brand batteries to reduce the
chance of battery leakage.
• If the laser unit is heated above 50 ˚C (120 ˚F), the unit will
not turn on. If the laser has been stored in extremely hot
temperatures, allow it to cool. The laser level will not be
damaged by pressing the on/off button before cooling to its
proper operating temperature.
The Laser Beams Flash
The DCE088R and DCE088G have been designed to self-
level up to an average of 4° in all directions when positioned
as shown in 3. If the laser is tilted so much that internal
mechanism cannot level itself, the laser beam will ash
indicating that the tilt range has been exceeded. The ashing
beams created by the laser are not level or plumb and
should not be used for determining or marking level or
plumb. Try repositioning the laser on a more level surface.
The Laser Beams Will Not Stop Moving
The DCE088R and DCE088G are precision instruments.
Therefore, if the laser is not positioned on a stable (and
motionless) surface, the laser will continue to try to nd level. If
the beam will not stop moving, try placing the laser on a more
stable surface. Also, try to make sure that the surface is
relatively at, so that the laser is stable.
The Battery Meter LED’s Flash
When all 4 LED’s continuously ash on the Battery Meter this
indicates that the unit has not been fully powered off using the
Pendulum Lock switch B. The Pendulum Lock switch should
always be placed in the LOCKED/OFF position when the laser
is not in use.
Service and Repairs
• Note: Disassembling the laser level(s) will void all
warranties on the product.
To assure product SAFETY and RELIABILITY, repairs,
maintenance and adjustment should be performed by
authorized service centers. Service or maintenance performed
by unqualied personnel may result in a risk of injury. To locate
your nearest DeWALT service center go to
http://www.dewalt.com on the Internet.

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User Manual
Specications
Laser Tool
Light Source Laser diodes
Laser Wavelength 630 – 680 nm (RED) 515-535 mm (GREEN)
Laser Power ≤1.5 mw (each beam) CLASS 2 LASER PRODUCT
Working Range
20 m (±65’) (RED) 35 m (±115’) GREEN
50 m with detector 50 m with detector
Accuracy (Level): ± 3 mm per 9 m (± 1/8” per 30’)
Indicators
Battery Low 1 x LED Flashing on Battery meter
Unit Not Powered Off With Pendulum
Lock Switch
4 x LED Flashing on Battery meter
Flashing Laser Beams Tilt range exceeded/unit is not level
Power Source 4 AA (1.5V) size batteries (6.0V DC) or 10.8 Li Ion DEWALT Rechargeable
Battery Pack.
Operating Temperature -10 °C to 45 °C (20 °F to 115 °F)
Storage Temperature -20 °C to 60° C (-5 °F to 140 °F)
Humidity Maximum relative humidity 80% for temperatures up to 31 °C (88 °F)
decreasing linearly to 50% relative humidity at 40 °C (104 °F)
Environmental Water & Dust Resistant to IP65