Johnson 40-6648 Manuale utente

Self-Leveling Cross and Line Laser

Model No. 40-6648

Instruction Manual

Congratulations on your choice of this Self-Leveling Cross and Line

Laser. We suggest you read this instruction manual thoroughly before

using the instrument and save this instruction manual for future use.

This is a Class II laser tool and is manufactured to comply with CRF 21,

parts 1040.10 and 1040.11 as well as international safety rule IEC 285.

1832i-English_Manuals 4/27/17 2:14 PM Page 1

Table of Contents

1. Features and Functions

2. Safety Instructions

3. Location/Content

of Warning Labels

4. Location of Parts/Components

5. Operating Instructions

6. Checking Accuracy

7. Application Examples

8. Troubleshooting Guide

9. Technical Specifications

10. Product Warranty

11. Warranty Registration

1. Features and Functions

• Projects up to three laser beams simultaneously to plot both

crosslines and a plumb line, or either line individually.

• Tilt mode can be used to plot orthogonal reference lines at

any angle.

• Magnetically dampened compensator system stabilizes the

pendulum quickly and accurately, and stays level even with

nearby jobsite vibration.

• Status light alerts you to when the tool is beyond its leveling

range.

• Locking mechanism protects the pendulum during transportation.

• 1/4″-20 tripod thread for use with most common tripods.

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2. afety Instructions

Please read and understand all of the following instructions, prior

to using this tool. Failure to do so, may void the warranty.

DANGER!

Class II Laser Product

Max. Power Output: ≤1mW

Wavelength: 635nm

THI TOOL EMIT LA ER RADIATION.

DO NOT TARE INTO BEAM.

AVOID DIRECT EYE EXPO URE.

ATTENTION IMPORTANT

• Read all instructions prior to operating this laser tool. Do not remove any labels from tool.

• Do not stare directly at the laser beam.

• Do not project the laser beam directly into the eyes of others.

• Do not set up laser tool at eye level or operate the tool near a reflective surface as

the laser beam could be projected into your eyes or into the eyes of others.

• Do not place the laser tool in a manner that may cause someone to unintentionally

look into the laser beam. Serious eye injury may result.

• Do not operate the tool in explosive environments, i.e. in the presence of gases or

flammable liquids.

• eep the laser tool out of the reach of children and other untrained persons.

• Do not attempt to view the laser beam through optical tools such as telescopes as

serious eye injury may result.

• Always turn the laser tool off when not in use or left unattended for a period of time.

• Remove the batteries when storing the tool for an extended time (more than 3 months)

to avoid damage to the tool should the batteries deteriorate.

• Do not attempt to repair or disassemble the laser tool. If unqualified persons attempt

to repair this tool, warranty will be void.

• Use only original Johnson®parts and accessories purchased from your Johnson®

authorized dealer. Use of non-Johnson®parts and accessories will void warranty.

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3. Location/Content of Warning Labels

1832i-English_Manuals 4/27/17 2:14 PM Page 4

4. Location of Parts/Components

Status Light

Locking

Compensator/

Power Switch

Battery Cover

Release Tab

Battery Cover

Release Tab

Battery

Cover

Tilt Mode

Button

Crossline Laser

Output Window

Plumb Line

Laser Output

Window

1/4″- 20 Tripod

Thread

(underneath, not shown)

1832i-English_Manuals 4/27/17 2:14 PM Page 5

5. Operating Instructions

IMPORTANT: It is the responsibility of the user to ensure proper

maintenance of the Self-Leveling Cross and Line Laser. Conduct

periodic test measurements to ensure the instrument is measuring

accurately and consistently. This is most important if the

instrument has been exposed to extreme temperatures or

moisture. eep the Self-Leveling Cross and Line Laser optic lens

clean and inspect for damage.

Battery Installation

To install batteries in the Self-Leveling Cross and

Line Laser:

1. Remove the battery cover, which is located at the

back of the tool, by pressing the battery cover

release tabs found on the left and right side of

the tool and pulling the cover back.

2. Insert 2 “AA” batteries into the battery compart-

ment according to the polarity illustrated inside.

3. Replace the battery cover. Press in the release

tabs as you insert them into the tool housing.

Notes:

• Always check that the locking compensator/power switch is in the

locked position before removing and replacing batteries.

• Use only alkaline batteries.

• Remove the batteries when storing the instrument for an extended

time (more than 3 months) to avoid damage to the tool should the

batteries deteriorate.

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Using the Product in elf-Leveling Mode

1. Slide the locking compensator up to the unlocked position to

power on the unit. The status light will illuminate, and the unit will

emit both a crossline and a 90° vertical (plumb) line.

2. Press the tilt mode button once to produce only the crossline.

3. Press the tilt mode button a second time to produce only the 90°

vertical (plumb) line.

4. Press the tilt mode button a third time to again produce both a

crossline and a 90° vertical (plumb) line.

5. Slide the locking compensator down to the locked position to

power off the unit.

Note: The Self-Leveling Cross and Line Laser must be within ±4°

of level for the self-leveling feature to function properly. If the

instrument is beyond its 4° self-leveling range, the laser will not

self-level, the laser will flash and the status light will turn red. Once

the instrument has been adjusted to within its 4° self-leveling range,

the laser will self-level, the status light will turn green and the laser

light will stop flashing and remain solid.

Using the Product in Tilt (Manual Level) Mode

The Crossline with 90º Plumb Line Laser can be used to project laser

beams at any angle desired, such as when projecting a line for stairs

or a railing. This mode produces the best results when the tool is

mounted on a tripod.

1. With the locking compensator down in the locked position, tap

the tilt mode button to power on the unit. The status light will

1832i-English_Manuals 4/27/17 2:14 PM Page 7

illuminate in red, and the unit will emit both a crossline and a

90° vertical (plumb) line.

Note: Relative orthogonal alignment of each of the beams will not

change from self-leveling mode, but the entire laser assembly will

not self-level.

2. Press the tilt mode button a second time to produce only the

crossline.

3. Press the tilt mode button a third time to produce only the vertical

(plumb) line.

4. Press the tilt mode button a fourth time to power off the unit.

Tips from the Pros

• Increasing the Beams’ Visibility – When working in bright

conditions, such as when working near windows or outside walls,

the visibility of the laser beams can be maximized by following

these steps:

• Work towards the laser.

• Use a freestanding target (sold separately).

• Wear laser glasses (sold separately).

Note: Laser glasses enhance beam visibility but should never be

used to stare into the beam or be used as safety glasses. Eye

damage may result if these directions are not followed.

1832i-English_Manuals 4/27/17 2:14 PM Page 8

Care and Handling

• This Self-Leveling Cross and Line Laser is a precision tool that

must be handled with care.

• Avoid exposing unit to shock vibrations and extreme temperatures.

• Remove the batteries when storing the unit for an extended time

(more than 3 months) to avoid damage to the unit should the

batteries deteriorate.

• Avoid getting the unit wet.

• eep the laser unit dry and clean, especially the laser output

window. Remove any moisture or dirt with a soft, dry cloth.

• Do not use harsh chemicals, strong detergents or cleaning

solvents to clean the unit.

1832i-English_Manuals 4/27/17 2:14 PM Page 9

6. Checking Accuracy

IMPORTANT: It is the responsibility of the user to verify the

calibration of the instrument before each use.

Plumb Accuracy Check

Plumb accuracy can be checked in two ways. The easier, though less

accurate, method is to project the beam on a flat wall and use a

plumb bob to check the plumb of the beam.

The more accurate method to check the plumb line accuracy is to

follow these steps:

1. Place the laser on the floor in a fairly

dark room, approximately 10′from a

doorway.

2. Project the plumb beam through the

doorway.

3. Mark the plumb beam’s closet point to

the tool on the floor as Point 1.

4. Mark a spot 20′away as Point 2.

5. Mark directly under the doorway as Point C.

6. Mark a spot directly above Point C, but on the doorway, as point D.

7. Move the laser to Point 2, and aim the plumb beam directly

through Point 1 and Point C.

8. Mark on the doorway Point E.

9. Measure the distance between Point D and Point E. If this

distance does not exceed 1/8″for a 10′high doorway, then the

tool is properly calibrated.

1832i-English_Manuals 4/27/17 2:14 PM Page 10

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