DeWalt DW074LR Guide D'utilisation page 15

• The best storage place is one that is cool and dry–away
from direct sunlight and excess heat or cold.
Detector Service
Except for batteries, there are no user serviceable parts in the
Digital Laser Detector. Do not disassemble the unit. Unauth-
orized tampering with the laser detector will void all warranties.
Detector Troubleshooting
The detector will not turn on.
• Press and release the power/volume button.
• Check to see that the battery is in place and in the
proper position.
• If the detector is very cold, allow it to warm up in a
heated area.
• Replace the 9 volt battery. Turn the unit on.
• If the detector still does not turn on, take the detector to a
D WALT service center.
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The detector's speaker makes no sound.
• Ensure that the detector is on.
• Press the power/volume button. It will toggle from high, to
low, to mute.
• Ensure that the rotary laser is spinning and that it is
emitting a laser beam.
• If the detector is still not making any sound, take it to a
D WALT service center.
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The detector does not respond to a stationary laser
beam.
• The D WALT Digital Laser Detector has been designed to
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work only with rotary lasers.
The detector gives off a tone but the LCD display
window does not function.
• If the detector is very cold, allow it to warm up in a
heated area.
• If the LCD display window is still not functioning, take the
detector to a D WALT service center.
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Construction Grade Rod (Fig. L)

DANGER: NEVER attempt to use a grade rod in a storm
or near overhanging electric wires. Death or serious
personal injury will occur.
Some laser kits include a grade rod. The D
is marked with measurement scales on both sides and is
constructed in telescoping sections. A spring-loaded button
actuates a lock to hold the grade rod at various lengths.
The front of the grade rod has the measurement scale starting
at the bottom. Use this for measuring from the ground up
when grading or leveling jobs.
The back of the grade rod is designed to measure the height
of ceilings, joists, etc. Fully extend the top section of the grade
rod until the button locks into the previous section. Extend that
section either until it locks into the adjacent section or until the
grade rod touches the ceiling or joist. The height is read where
the last extended section exits the previous lower section, as
shown in Figure L.
WALT Grade Rod
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15
Using the Laser with a Wall Mount
(Fig. C, M, N)
Some laser kits include a Wall Mount. It can be used for
attaching the tool to track or ceiling angle and to aid in
acoustical ceiling installation. Follow the directions below for
using the wall mount.

CAUTION: Before attaching the laser level to wall
track or ceiling angle, be sure that the track or angle is
properly secured.
1. Place the laser on the mounting base
11 screw hole on the tripod adapter (
the bottom of the laser with the hole
base. Turn the mounting knob
2. With the wall mount measuring scale
loosen the wall mount clamp locking knob
clamp jaws.
3. Position the clamp jaws around the wall track or ceiling
angle and tighten the wall mount clamp locking knob
to close the clamp jaws onto the track. Be sure that
42
the wall mount clamp locking knob is securely tightened
before proceeding.

CAUTION: Always use a ceiling wire hanger or equivalent
material, in addition to the wall mount clamp locking
knob, to help secure the laser level while mounting it to a
wall. Thread the wire through the handle of the laser level.
DO NOT thread the wire through the protective metal
cage. Additionally, screws may be used to fasten the wall
mount directly to the wall as a back up. Screw holes
are located at the top of the wall mount.
4. Using the base leveling knob
position from the wall.
5. The tool can be adjusted up and down to the desired
offset height for working. To change the height, loosen
the locking knob 45 located on the left of the wall mount.
Support the mounting base when adjusting the height.
6. Turn the adjustment knob
wall mount, to move the laser level up and down to set
your height. Use the wall mount measuring scale
pinpoint your mark.
NOTE: It may be helpful to turn the power on and turn the
rotary head so that it puts a dot on one of the laser scales.
The D WALT target card is marked at 1–1/2" (38 mm),
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therefore, it may be easiest to set the offset of the laser to
1–1/2" (38 mm) below the track.
7. Once you have positioned the laser at the desired height,
tighten the locking knob
ENGLISH
37 aligning the 5/8–
20 , Fig. C) attached to
in the mounting
39
40 to secure the laser.
41 facing you,
to open the
42
44 approximate a level
46 , located to the right of the
41
to maintain this position.
45
43
to