Bosch GLL2-50 User Manual

IMPORTANT: IMPORTANT : IMPORTANTE:

Read Before Using Lire avant usage Leer antes de usar

Operating/Safety Instructions Consignes de fonctionnement/sécurité

Instrucciones de funcionamiento y seguridad

GLL2-50

For English Version Version française Versión en español

See page 6 Voir page 15 Ver la página 23

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Make sure that this device and the tool are securely mounted before operation.

WARNING

Assurez-vous que cet appareil et l’outil sont solidement assujettis avant de les utiliser.

Asegúrese de que este dispositivo y la herramienta estén montados de manera segura antes de su utilización.

AVERTISSEMENT

ADVERTENCIA

-5-

1/4"

5/8"

Read all instructions. Failure to follow all instructions listed below may result in hazardous radiation exposure, electric shock, fire and/or

serious injury. The term “tool” in all of the warnings listed below refers to your mains-operated

(corded) tool or battery-operated (cordless) tool.

The following labels are on your laser tool for your convenience and safety. They indicate where the laser light is emitted by the tool.

ALWAYS BE AWARE of their location when using the tool.

Do not direct the laser beam at persons or animals and do not stare into the laser beam yourself. This tool produces laser class 2 laser radiation and complies with 21 CFR 1040.10 and 1040.11 except for deviations pursuant to Laser Notice No. 50, dated June 24, 2007. This can lead to persons being blinded.

DO NOT remove or deface any warning or caution labels. Removing labels increases the risk of exposure to laser radiation.

Use of controls or adjustments or performance of procedures other than those specified in this manual, may result in hazardous radiation exposure.

ALWAYS make

sure that any bystanders in the vicinity of use are made aware of the dangers

of looking directly into the laser tool. DO NOT place the laser tool in a position that may cause anyone to stare into the laser beam

intentionally or unintentionally. Serious eye injury could result. ALWAYS position the laser tool securely. Damage to the laser tool and/or serious injury to the

user could result if the l

aser tool fails.

ALWAYS use only the accessories that are recommended by the manufacturer of your laser tool. Use of accessories that have been designed for use with other laser tools could result in serious injury.

DO NOT use this laser tool for any purpose other than those outlined in this manual. This could result in serious

injury. DO NOT leave the laser tool “ON” unattended in any operating mode. DO NOT disassemble the laser tool. There are no user serviceable parts inside. Do not modify

the product in any way. Modifying the laser tool may result in hazardous laser radiation exposure.

DO NOT use the laser viewing glasses as safety goggles. The laser viewing glasses are used for improved visualization of the laser beam,

but they do not protect against laser radiation.

DO NOT use the laser viewing glasses as sun glasses or in traffic. The laser viewing glasses do not afford complete UV protection and reduce color perception.

DO NOT use any optical tools such as, but not limited to, telescopes or transits to view the laser beam. Serious eye injury could result.

DO NOT stare directly at the laser beam or project the laser

beam directly into the eyes of

others. Serious eye injury could result.

SAVE THESE INSTRUCTIONS

-6-

General Safety Rules

WARNING

Laser Radiation. Do not stare into the beam. Class 2 Laser product.

Radiación láser. No mire al rayo. Producto láser de Clase 2. Rayonnement laser. Ne regardez pas directement dans le

faisceau. Produit laser de Classe 2.

IEC 60825-1:2007-03

<1 mW, 635 nm

Work area safety

Keep work area clean and well lit.

Cluttered or dark areas invite accidents.

DO NOT operate the laser tool around children or allow children to operate the laser tool. Serious eye injury could result.

Electrical safety

Batteries can explode or leak, cause injury or fire.

To reduce this risk, always follow all instructions and warnings on the battery label and package. DO NOT short any battery terminals. DO NOT charge alkaline batteries. DO NOT mix old and new batteries. Replace

all of them at the same time with new batteries of the same

brand and type.

DO NOT mix battery chemistries. Dispose of or recycle batteries per local code. DO NOT dispose of batteries in fire. Keep batteries out of reach of children. Remove batteries if the device will not be used for several months.

Personal safety

Stay alert, watch what you are doing and use common sense when operating a tool. Do not use a tool while you are tired or under the influence of drugs, alcohol or medication. A moment of inattention

while operating a tool may result in serious personal injury or incorrect measurement results.

Use safety equipment. Always wear eye protection. Safety equipment such as d

ust mask, non-skid safety shoes, hard hat, or hearing protection used for appropriate conditions will reduce personal injuries.

Positioning Device

Keep the Positioning Device 17 away from cardiac pacemakers. The magnets

(figure P) generate a field that can impair the function of cardiac pacemakers.

• Keep the Positioning Device 17 away

from magnetic data medium and magnetically-sensitive equipment. The

effect of the magnets (figure P) can lead to irreversible data loss.

Use and care

Use the correct tool for your application.

The correct tool will do the job better and safer.

Do not use the tool if the switch does not turn it on and off. Any tool that cannot be

controlled with the switch is dangerous and must b

e repaired.

Store idle tool out of the reach of children and do not allow persons unfamiliar with the tool or these instructions to operate the tool. Tools are dangerous in the hands

of untrained users.

Maintain tools. Check for misalignment or binding of moving parts, breakage of parts and any other condition that may affect the operation. If damaged, tool repaired before use. Many accidents are

caused by poorly maintained tools.

Use the tool, accessories, etc., in accordance with these instructions and in the manner intended for the particular type of tool, taking into account the working conditions and the work to be performed. Use of the tool for operations

different from those intended could result in a hazardous situation.

Service

Have your tool serviced by a qualified repair person using only identical replacement parts. This will ensure that the

safety of the tool is maintained.

Develop a periodic maintenance schedule for tool. When cleaning a tool be careful not to disassemble any portion of the tool since internal wires may be misplaced or pinched or may be improperly mounted.

Certain cleaning agent

s such as gasoline,

carbon tetrachloride, ammonia, etc. may damage plastic parts.

SAVE THESE INSTRUCTIONS.

-7-

WARNING

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The numbering of the product features shown refers to the illustration of the tool on the graphic page.

1 Exit opening for laser beam 2 Pulse-function indicator 3 Pulse-function button 4 Operating mode button 5 Battery indication 6 Tripod mount 1/4" 7 On/Off switch 8 Battery lid 9 Serial number

10 Laser warning label 11 Latch of ba

ttery lid

12 Belt Pouch* 13 Case* 14 Laser viewing glasses* 15 Measurement plate with stand* 16 Laser Receiver* 17 Positioning Device 18 Telescoping Pole System

*The accessories illustrated or described are not included as standard delivery.

Features

Working range

– Standard . . . . . . . . . . . . . . . . . .65 ft (20m)

– With laser receiver . . . . . . . . .165 ft (50m)

Levelling Accuracy:

Minimum

Factory Accuracy . . . . . . . . . . . .(±0.3mm/m)

. . . . . . . . . . . . . . . . . . . . .± .0036in/ft

Typical Accuracy . . . . . . . up to 1/4 at 100ft

Self-levelling range,

typically . . . . . . . . . . . . . . . . . . . . . . . . . ±4°

Levelling duration,

typically . . . . . . . . . . . . . . . . . . . . . . . . .<4s

Operating temperature . . . . . . .14° F 122° F

. . . . . . . . . . . . . . . . . .(–10° C+50° C)

Storage temperature . . . . . . . . .-4° F 158°F

. . . . . . . . . . . . . . . . . .(–20°C +70° C)

Relative air humidity,

max. . . . . . . . . . . . . . . . . . . . . . . . . . .90 %

Laser class . . . . . . . . . . . . . . . . . . . . . . 2

Laser type . . . . . . . . . . . . . . .635 nm, <1mW

C6 . . . . . . . . . . . . . . . . . . . . . . . . . >3.33

Tripod mou

nt . . . . . . . . . . . . . . . . . . .1/4-20

Batteries . . . . . . . . . . . . .3 x 1.5 V LR6 (AA)

Operating lifetime, approx. . . . . . . . . . . .12 h

Automatic switch-off after approx. . . .30 min

Weight according to EPTA-Procedure

01/2003 . . . . . . . . . . . . . . . . 1lb (0.45kg)

Dimensions . . . . . . . .4-5/8” x 2-1/4” x 3-1/2”

. . . . . . . . . . . . . . . (118x 57 x 89mm)

Degree of protection . . . . . . . . . . . . .IP 54

(dust and splash water protected)

Please observe the article number on the type plate of your tool. The trade names of the individual tools may vary.

The tool can be clearly identified with the

seri

al number 9 on the type plate.

Technical Data

Preparation

Inserting/Replacing the Battery

Use only alkaline batteries.

To open the battery lid 8, press the latch of the battery lid 11 in the direction of the arrow

and remove the battery lid. Insert the supplied batteries.

When inserting, pay attention to the correct polarity according to the representation on the inside of the battery compartment.

When the battery indication 5 flashes red, the batteries must be replaced. Always replace all batteries at the same time. Only use batteries from one brand and with the identical capacity.

• Remove the batteries from the

tool when not using it for extended periods. When storing for extended

periods, the batteries can corrode and discharge themselves.

The tool is intended for determining and checking horizontal and vertical lines.

Intended Use

-9-

Initial Operation

• Protect the tool against moisture and direct sun irradiation.

• Do not subject the tool to extreme temperatures or variations in temperature.

As an example, do not leave it in vehicles for longer periods. In case of large variations in temperature, allow the tool to adjust to the ambient temperature before putting it into operation. In case of extreme temperatures or variations in temperature, the accuracy of the tool can be impaired.

• Avoid heavy impact or falling of the tool. After heavy exterior impact on the

tool, an accura

cy check should always be carried out before continuing to work (see “Leveling Accuracy”).

• Switch the tool off during transport.

When switching off, the leveling unit, which can be damaged in case of intense movement, is locked.

Switching On and Off

To switch on the tool, push the On/Off switch 7 to the “ on” position (when working without automatic leveling) or to the “ on” position (when working with automatic leveling). Immediately after switching on, the tool sends laser beams out of the exit openings 1.

• Do not point the laser beam at persons or animals and do not look into the laser beam yourself, not even from a large distance.

To switch off the tool, push the On/Off switch 7 to the “off” position. When switching

off, the leveling unit is locked. Deactivating the Automatic Shut-off The tool switches off automatically after a

n operating duration of 30 minutes. To deactivate the automatic switch-off, keep the operating mode button 4 pressed for 3 s while

switching on the tool. When the automatic switch-off is deactivated, the laser lines briefly flash after 3 s.

• Do not leave the switched on measuring

tool unattended and switch the tool off after use. Other persons could be

blinded by the laser beam. To activate the automatic shut-off, switch the tool off and then on again (without the

operating mode button 4 pushed).

Operating Modes (see figures A–D)

The tool has three operating modes between which you can switch at any time:

– Horizontal operation “–”: Produces a

horizontal laser line,

– Vertical operation “l”: Produces a vertical

laser line,

– Cross-line operation “+”: Produces a

horizontal and vertical laser line.

All three operating modes can be selected in the automatic leveling mode. In the locked mode, either the horizontal operation or the vertic

al operation mode can be selected.

After switching on, the tool is in cross-line operating mode. To change the operating mode, press the operating mode button 4.

Pulse Function

The LR2 laser receiver allows the GLL2-50 to be used in situations in which the lines cannot be seen. The pulse function is activated separately from the selection of the operating mode. The GLL2-50 does not work with other laser receivers.

In pulse function, the laser lines flash

at very

high frequency and thus become detectable for the laser receiver 16.

To switch on the pulse function, press button

3. When the pulse function is switched on, the pulse-function indicator 2 lights up green.

When the pulse function is switched on, the visibility of the laser lines is reduced for the human eye. Therefore, shut off the pulse function by pus

hing button 3 again when

working without laser receiver. When the pulse function is switched off, the pulsefunction indicator 2 is deactivated.

Automatic Leveling Working with Automatic Leveling (see

figure C)

Position the tool on a level and firm support or attach it to a commercially available photographic tripod.

When working with automatic leveling, push the On/Off switch 7 to the “ on” position.

After switching on, the leveling function automatically compensates irregularities within the self-leveling range of ±4°. The tool is levelled in as soon as the laser lines no longer flash.

Operation

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Influences on Accuracy

The ambient temperature has the greatest influence. Especially temperature differences occurring from the ground upward can divert the laser beam.

Because the largest difference in temperature layers is close to the ground, the tool should always be mounted on a tripod when measuring distances exceeding 65 ft. If possible, al

so set up the tool in the centre of

the work area.

Apart from exterior influences, device specific influences (such as heavy impact or falling down) can lead to deviations. Therefore, check the accuracy of the tool each time before starting your work.

First, check both the height as well as the leveling accuracy of the horizontal laser line, then the leveling accuracy of the vertical laser line.

Should the tool exceed the maximum devi

ation during one of the tests, please have it repaired by a Bosch after-sales service center.

Checking the Height Accuracy of the Horizontal Line

For this check, a free measuring distance of approximately 26 feet on a firm surface between two walls A and B is required.

– Mount the tool onto a tripod or place it on a

firm and level surface close to wall A. Switch on the tool. Select cross-line operation with automatic leveling.

– Direct the laser agains

t the close wall A and allow the tool to level in. Mark the center of the point where the laser lines cross each other on the wall (point I).

– Turn the tool by 180°, allow it to level in

and mark the cross point of the laser lines on the opposite wall B (point II).

26 ft

180˚

If the automatic levelling function is not possible, e.g. because the surface on which the tool stands deviates by more than 4° from the horizontal plane, the laser beams flash. In this case, bring the tool to the level position and wait for the self-levelling to take place.

In case of ground vibrations or position changes during operation, the tool is

automatically levelled in

again. To avoid errors, check the position of the horizontal and vertical laser line with regard to the reference points upon re-levelling.

Lock Mode - Working without Automatic Levelling (see figure D)

For work without automatic levelling, push the On/Off switch 7 to the “ on” position. When the automatic levelling is switched off, the laser line flash continuously.

When the automatic levelling is switched off, the tool can be held by hand or placed on an inclined surface.

Working Advice

• Always use the center of the laser line for marking. The width of the laser line

changes with the distance.

Leveling Accuracy

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