Bedienungsanleitung DeWalt DW074 (Seite 33 von 136) (Deutsch, Englisch, Holländisch, Dänisch, Französisch, Italienisch, Portugiesisch, Spanisch, Türkisch, Schwedisch, Norwegisch, Finnisch)

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4. To make adjustments in height, slightly loosen

the clamp, reposition and retighten.

Optional Accessories

WARNING: Since accessories, other

than those offered by DEWALT, have

not been tested with this product, use

of such accessories with this laser

could be hazardous. To reduce the risk

of injury, only DEWALT-recommended

accessories should be used with this

product.

These are:

• DE0772 DEWALT Digital laser detector

• DE0734 DEWALT Grade rod

• DE0735 DEWALT Tripod

• DE0736 DEWALT Tripod

• DE0737 DEWALT Grade rod

• DE0738 DEWALT Gradient bracket

Consult your dealer for further information on the

appropriate accessories.

MAINTENANCE

Your DEWALT laser unit has been designed to

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 DEWALT service

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).

Field Calibration Check (ﬁ g. 9, 10)

WARNING: Always have the laser head

calibrated by a qualified repair agent.

Field calibration checks should be done frequently.

NOTE: As part of the DEWALT guarantee,

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

DEWALT agent. A certificate will be awarded at

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 DEWALT service centre.

LEVEL CALIBRATION CHECK (X-AXIS)

1. Set up a tripod between two walls that are at

least 15 m (50 ft.) 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 9.

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 10.

7. Calculate the total error using the equation:

Total Error = (AA – A) – (BB – B)

8. Compare total error to the allowable limits

shown in the following table.

Distance between walls Allowable Error

L = 15 m (50')6 mm (0.25")

L = 25 m (80')10 mm (0.4")

L = 50 m (160')20 mm (0.8")

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. 11)

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.)

2. Position the rotary laser securely on the floor

approximately 1 m (3') from the wall.

3. Turn the laser on and level it using the arrow

buttons to center the bubble. Put the unit in low

speed rotation for maximum visibility, making

sure the beam passes through the mark on the

bottom of the wall. Recheck the bubble position

to confirm it is still centred.

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