Figure - DeWalt DW079 Original Instructions Manual

Optional Accessories
WARNING: Since accessories, other
than those offered by D
not been tested with this product, use
of such accessories with this laser
could be hazardous. To reduce the risk
of injury, only D WALT-recommended
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accessories should be used with this
product.
These are:
• DE0772 D WALT Digital laser detector
E
• DE0734 D WALT Grade rod
E
• DE0735 D WALT Tripod
E
• DE0736 D WALT Tripod
E
• DE0737 D WALT Grade rod
E
• DE0738 D WALT Gradient bracket
E
• DE9135 D WALT LI charger
E
• D WALT Battery packs:
E
Voltage NiCd
9.6 DE9061
12 DE9071/DE9075 DE9501
14.4 DE9091/DE9092 DE9502 DE9140
18 DE9095/DE9096 DE0503 DE9180
Consult your dealer for further information on the
appropriate accessories.
MAINTENANCE
Your D WALT laser unit has been designed to
E
operate over a long period of time with a minimum
of maintenance. Continuous satisfactory operation
depends upon proper laser care and regular
cleaning.
• To maintain the accuracy of your work, check
the calibration of the laser often. Refer to Field
Calibration Check.
• Calibration checks and other maintenance
repairs can be performed by D
centres.
• When the laser is not in use, store it in the kit
box provided.
• Do not store your laser in the kit box if the laser
is wet. Dry exterior parts with a soft, dry cloth
and allow the laser to air dry.
• Do not store your laser at temperatures below
-18˚C (0˚F) or above 41˚C (105˚F).
• The charger is not serviceable. There are no
serviceable parts inside the charger.
Field Calibration Check (fi g. 10-12)
WALT, have
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Field calibration checks should be done frequently.
NOTE: As part of the D
the owner is entitled to one FREE calibration
service within the first year. Simply complete
the enclosed voucher and return along with the
laser and proof of purchase to an authorised
D
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no additional charge.
Field calibration checks do not calibrate the laser.
These checks indicate whether or not the laser is
providing a correct level and plumb line and do not
correct errors in the leveling or plumbing capability
of the laser.
These checks cannot take the place of professional
calibration performed by a D
LEVEL CALIBRATION CHECK (X-AXIS)
1. Set up a tripod between two walls that are at
NiMH LI
least 15 m (50 feet) apart. The exact location of
– –
the tripod is not critical.
–
2. Mount the laser unit on the tripod so that the
X-axis points directly toward one of the walls.
3. Turn the laser unit on and allow it to self-level.
4. Mark and measure points A and B on the walls
as shown in Figure 10.
5. Turn the entire laser unit 180º so the X-axis
points directly toward the opposite wall.
6. Allow the laser unit to self-level, and mark and
measure points AA and BB on the walls as
shown in Figure 11.
7. Calculate the total error using the equation:
8. Compare total error to the allowable limits
shown in the following table.
Distance between walls
WALT service
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LEVEL CALIBRATION CHECK (Y-AXIS)
Repeat the procedure above, but with the laser unit
positioned so the Y-axis is pointed directly toward
the walls.
PLUMB ERROR CHECK (FIG. 12)
1. Using a standard plumb bob as a reference,
mark the top and bottom of a wall. (Be sure to
mark the wall and not the floor and ceiling.)
WARNING: Always have the laser head
calibrated by a qualified repair agent.
WALT guarantee,
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WALT agent. A certificate will be awarded at
WALT service centre.
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Total Error = (AA – A) – (BB – B)
Allowable Error
L = 15 m (50 ft.) 3 mm (0.125")
L = 25 m (80 ft.) 5 mm (0.2")
L = 50 m (160 ft.) 10 mm (0.4")
EN GL IS H
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