DeWalt How to Calibrate Your Laser Level for Optimal Performance

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•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 0˚F (-18˚C) or above 105˚F (41˚C).

WARNING: Never use solvents or other harsh chemicals for cleaning the non-metallic parts of the tool. These chemicals may weaken the materials used in these parts. Use a cloth dampened only with water and mild soap. Never let any liquid get inside the unit; never immerse any part of the unit into a liquid. Never use compressed air to clean the laser.

Field Calibration Check (Fig. 17, 18)

Field calibration checks should be done frequently. This section provides instructions for performing simple field calibration checks of your DEWALT Rotary Laser. Field calibration checks do not calibrate the laser. That is, these checks do not correct errors in the leveling or plumbing capability of the laser. Instead, the checks indicate whether or not the laser is providing a correct level and plumb line. These checks cannot take the place of professional calibration performed by a DEWALT service center.

LEVEL CALIBRATION CHECK (X-AXIS)

1.Set up a tripod between two walls that are at least 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 17.

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FIG. 17

BEAM

A B

L

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 18.

FIG. 18	LASER UNIT ROTATED 180˚
	BEAM
AA	BB

L

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.