Bosch GLL 2 Professional Self-Leveling Cross-Line Laser Instruction Manual

BOSCH GLL 2 Professional Self-Leveling Cross-Line Laser

Cross-line Laser

Working safely with the measuring tool is possible only when the operating and safety information are read completely and the instructions contained therein are strictly followed. Never make warning labelson the measuring tool unrecognisable.

COMPONENTS

SAVE  THESE INSTRUCTIONS.

  •  Caution – The use of other operating or adjusting equipment or the application of other processing methods than those mentioned here, can lead to dangerous radiation exposure.
  •  The measuring tool is provided with a warning label in English (marked with number 4 in the representation of the measuring toolon the graphics page).
  •  Do not direct the laser beam at persons or animals and do not stare into the laser beam yourself. This measuring tool produces laser class 2 laser radiation according to IEC 60825-1. This can lead to persons being blinded.
  •  Do not use the laser viewing glasses as safety goggles. The laser viewing glasses are used for improved visualisation of the laser beam, but they do not protect against laser cradiation.
  •  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 colour perception
  •  Have the measuring tool repaired only through qualified specialists using original spare parts. This ensures that the safety of the measuring tool is maintained.
  •  Do not allow children to use the laser measuring tool without supervision. They could unintentionally blind other persons or themselves.
  •  Do not operate the measuring tool in explosive environments, such as in the presence of flammable liquids, gases or dusts. Sparks can be created in the measuring tool which may ignite the dust or fumes.

Overview

Holder

  • Keep the holder 8 away from cardiac pacemakers. The magnets 12 generate a field that can impair the function of cardiac pacemakers.
  • Keep the holder 8 away from magnetic data cmedium and magnetically-sensitive equipment. The effect of the magnets 12 can lea to irreversible data loss.

Functional Description

Please unfold the fold-out page with the representation of the measuring tool and leave it unfolded while reading the operating instructions.

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

Technical Data

Product Features

  1.  Exit opening for laser beam
  2.  Tripod mount 1/4″
  3.  On/Off switch
  4.  Laser warning label
  5.  Serial number
  6.  Latch of battery lid
  7.  Battery lid
  8.  Holder
  9.  Locking screw for holder
  10.  Screw holes of holder
  11.  Opening for strap attachment
  12.  Magnets
  13.  1/4″ tripod mount on holder
  14.  5/8″ tripod mount on holder
  15.  Protective pouch
  16.  Laser viewing glasses*
  17.  Measuring plate with stand*
  18.  Tripod

Assembly

  • Inserting/Replacing the Battery Alkali-manganese batteries are recommended for the measuring tool. To open the battery lid 7, press the latch of the battery lid 6 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 batteries become weak, the laser beams flash rapidly for about 5 s (while the measuring tool is switched on).
  • Always replace all batteries at the same time. Only use batteries from one brand and with the identical capacity.
  • Remove the batteries from the measuring tool when not using it for extended periods.
  • When storing for extended periods, the batteries can corrode and discharge themselves.

Operation

Initial Operation

  •  Protect the measuring tool against moisture and direct sun light.
  •  Do not subject the measuring 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 measuring 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 measuring tool can be impaired.
  •  Avoid heavy impact or falling of the measuring tool. After heavy exterior impact on the measuring tool, an accuracy check should always be carried out before continuing to work (see “Levelling Accuracy”).
  •  Switch the measuring tool off during transport. When switching off, the levelling unit, which can be damaged in case of intense movement, is locked.

Switching On and Off

  •  To switch on the measuring tool, push the On/Off switch 3 to the “On” position. Immediately after switching on, the measuring toolsends two laser beams out of the exit opening 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 measuring tool, slide the
  • On/Off switch 3 to the “Off” position. When switching off, the levelling unit is locked.
  •  Do not leave the switched on measuring tool unattended and switch the measuring tool off after use. Other persons could be blinded by the laser beam.
  • The measuring tool switches off automatically after an operating duration of 30 minutes.
  • Working with Automatic Levelling Position the measuring tool on a level and firm support, attach it to the holder 8 or to the tripod 18.
  • After switching on, the levelling function automatically compensates for irregularities within the self-levelling range of ±4°. The levelling is finished as soon as the laser beams do not move any more.
  • If the automatic levelling function is not possible, e.g. because the surface on which the measuring tool stands deviates by more than 4°from the horizontal plane, the laser beams flash slowly.
  • In this case, bring the measuring tool to the level position and wait for the self-levelling to take place. As soon as the measuring tool is within the self-levelling range of ±4°, the laser lines light up continuously again.
  • In case of ground vibrations or position changes during operation, the measuring tool is automatically levelled in again. To avoid errors, chec the position of the horizontal and vertical laser line with regard to the reference points upon relevelling

Levelling Accuracy

Influences on Accuracy

The ambient temperature has the greatest influence.Especially temperature differences occurring from the ground upward can divert the laser beam. As thermal fluctuation is largest close to the ground, the measuring tool, if possible, should be mounted on a commercially available tripod and placed in the centre of the working 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 measuring tool each time before starting your work.First, check both the height as well as the levelling accuracy of the horizontal laser line, then the levelling accuracy of the vertical laser line. Should the measuring tool exceed the maximum deviation during one of the tests, please have it repaired by a Bosch after-sales service.
Checking the Height Accuracy of the Horizontal Line

  • For this check, a free measuring distance of 5 metres on a firm surface between two walls A and B is required.
  •  Mount the measuring tool onto the holder or a tripod, or place it on a firm and level surface close to wall A. Switch the measuring tool on
  •  Direct the laser against the close wall A and allow the measuring tool to level in. Mark the centre of the point where the laser lines cross each other on the wall (point I).
  •  Turn the measuring tool by 180°, allow it to level in and mark the cross point of the laser lines on the opposite wall B (point II).
  •  Without turning the measuring tool, position it close to wall B. Switch the measuring tool on and allow it to level in.
  •  Align the height of the measuring tool (using a tripod or by underlaying, if required) in such a manner that the cross point of the laser lines is projected against the previously marked point II on the wall B.
  •  Without changing the height, turn around the measuring tool by 180°. Direct it against the wall A in such a manner that the vertical lase  line runs through the already marked point I. Allow the measuring tool to level in and mark the cross point of the laser lines on the wall A (point III).
  •  The difference d of both marked points I and III on wall A indicates the actual height deviation of the measuring tool. The maximum permitted deviation dmax is calculated as follows:
    dmax = double distance of the walls x 0.3 mm/m Example: With a 5 metre distance between the walls, the maximum deviation must not exceed dmax = 2 x 5 m x 0.3 mm/m = 3 mm. Thus, the marks must not be more than 3 mm apart.

Checking the Levelling Accuracy of the Horizontal Line

  • For the check, a free surface of approx. 5 x 5 metres is required.
  • Mount the measuring tool between both walls A and B onto the holder or a tripod, or place it on a firm and level surface. Allow the measuring tool to level in.
  • At a distance of 2.5 metres from the measuring tool, mark the centre of the laser line (point I on wall A and point II on wall B) on both walls.
  • Set up the measuring tool 5 metres away turned by 180° and allow it to level in.
  • Align the height of the measuring tool (using a tripod or by underlaying, if required) in such a manner that the centre of the laser line is projected exactly against the previously marked point II on wall B.
  • Mark the centre of the laser line as point III (vertically above or below point I) on the wall A.
  • The difference d of both marked points I and III on wall A indicates the actual deviation of the measuring tool from the level plane.
  • The maximum permitted deviation dmax is calculated as follows:
    dmax = double distance of the walls x 0.3 mm/m Example: With a 5 metre distance between the walls, the maximum deviation must not exceed dmax = 2 x 5 m x 0.3 mm/m = 3 mm. Thus, the marks must not be more than 3 mm apart

Checking the Levelling Accuracy of the Vertical Line

  • For this check, a door opening is required with at least 2.5 metres of space (on a firm surface) to each side of the door.
  • Position the measuring tool on a firm, level surface (not on a tripod) 2.5 m away from the door opening. Direct the laser beams at the door opening and allow the measuring tool to level in.
  • Mark the centre of the vertical laser line at the floor of the door opening (point I), at a distance of 5 metres beyond the other side of the door opening (point II) and at the upper edge of the door opening (point III).
  • Position the measuring tool on the other side of the door opening directly behind point II. Allow the measuring tool to level in and align the vertical laser line in such a manner that its centre runs exactly throught points I and II.
  • The difference d between point III and the centre of the laser line at the upper edge of the door opening results in the actual deviation of the measuring tool from the vertical plane.
  • Measure the height of the door opening. The maximum permitted deviation dmax is calculated as follows:
    dmax = double height of the door opening x 0.3 mm/m Example: With a door opening height of 2 metres, the maximum permitted deviation is dmax = 2 x 2 m x 0.3 mm/m = 1.2 mm. Thus, the marks must not be more than 1.2 mm apart

Working Advice

  • Always use the centre of the laser line for marking. The width of the laser line changes with the distance.
    Attaching with the Holder To fasten the measuring tool on the holder 8, screw the locking screw 9 of the holder into the 1/4″ tripod mount 2 on the measuring tool and tighten. To rotate the measuring tool on the holder, slightly loosen the screw 9.
  • With the holder 8, the measuring tool can be attached as follows:
  • Mount the holder 8 to the tripod 18 or a commercially available camera tripod via the 1/4″ tripod mount 13. For fastening to a commercially available construction tripod, use the 5/8″ tripod mount 14.
  • The holder 8 can be fastened to steel parts via the magnets 12.
  • The holder 8 can be fastened to drywalls or wood walls with screws. For this, insert screws with a minimum length of 50 mm into the screw holes 10 of the holder.
  • The holder 8 can also be fastened to pipes or similar beams using a commercially available strap by threading it through the opening 11 for strap attachment.

Working with the Tripod (Accessory)

A tripod offers a stable, height-adjustable measuring support. Place the measuring tool via the tripod mount 2 onto the 1/4″ male thread of the tripod and screw the locking screw of the tripod tight.

Working with the Measuring Plate (Accessory) 

With the measuring plate 17, it is possible to project the laser mark onto the floor or the laser height onto a wall. With the zero field and the scale, the offset or drop to the required height can be measured and projected at another location. This eliminates the necessity of precisely adjusting the measuring tool to the height to be projected. The measuring plate 17 has a reflective coating that enhances the visibility of the laser beam at greater distances or in intense sunlight. The brightness intensification can be seen only when viewing, parallel to the laser beam, onto the measuring plate.

Laser Viewing Glasses (Accessory)

  • The laser viewing glasses filter out the ambient light. This makes the red light of the laser appear brighter for the eyes.
  •  Do not use the laser viewing glasses as safety goggles. The laser viewing glasses are used for improved visualisation 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 colour perception.

Work Examples  
Applicational examples for the measuring tool can be found on the graphics pages.

Maintenance and Service

Maintenance and Cleaning

  • Store and transport the measuring tool only in the supplied protective pouch. Keep the measuring tool clean at all times.
  • Do not immerse the measuring tool in water or other fluids.
  • Wipe off debris using a moist and soft cloth.
  • Do not use any cleaning agents or solvents. Regularly clean the surfaces at the exit opening of the laser in particular, and pay attention to any fluff of fibres.
  • If the measuring tool should fail despite the care taken in manufacturing and testing procedures, repair should be carried out by an authorised after- sales service centre for Bosch power tools.
  • Do not open the measuring tool yourself. In all correspondence and spare parts orders, please always include the 10-digit article number given on the type plate of the measuring tool.
  • In case of repairs, send in the measuring tool packed in its protective pouch 15.

After-sales Service and Customer

Assistance
Our after-sales service responds to your questions concerning maintenance and repair of your product as well as spare parts. Exploded views and information on spare parts can also be found under: www.bosch-pt.com Our customer service representatives can answer your questions concerning possible applications and adjustment of products and accessories.

Great Britain

  • Robert Bosch Ltd. (B.S.C.)
  • P.O. Box 98
  • Broadwater Park
  • North Orbital Road
  • Denham
  • Uxbridge
  • UB 9 5HJ
  • Tel. Service: +44 (0844) 736 0109
  • Fax: +44 (0844) 736 0146
  • E-Mail: [email protected]

Ireland

  • Origo Ltd.
  • Unit 23 Magna Drive
  • Magna Business Park
  • City West
  • Dublin 24
  • Tel. Service: +353 (01) 4 66 67 00
  • Fax: +353 (01) 4 66 68 88

Australia, New Zealand and Pacific Islands

  • Robert Bosch Australia Pty. Ltd.
  • Power Tools
  • Locked Bag 66
  • Clayton South VIC 3169
  • Customer Contact Center
  • Inside Australia:
  • Phone: +61 (01300) 307 044
  • Fax: +61 (01300) 307 045
  • Inside New Zealand:
  • Phone: +64 (0800) 543 353
  • Fax: +64 (0800) 428 570
  • Outside AU and NZ:
  • Phone: +61 (03) 9541 5555
  • www.bosch.com.au

Republic of South Africa Customer service

  • Hotline: +27 (011) 6 51 96 00

Gauteng – BSC Service Centre

  • 35 Roper Street, New Centre
  • Johannesburg
  • Tel.: +27 (011) 4 93 93 75
  • Fax: +27 (011) 4 93 01 26
  • E-Mail: [email protected]

KZN – BSC Service Centre

  • Unit E, Almar Centre
  • 143 Crompton Street
  • Pinetown
  • Tel.: +27 (031) 7 01 21 20
  • Fax: +27 (031) 7 01 24 46
  • E-Mail: [email protected]

Western Cape – BSC Service Centre

  • Democracy Way, Prosperity Park
  • Milnerton
  • Tel.: +27 (021) 5 51 25 77
  • Fax: +27 (021) 5 51 32 23
  • E-Mail: [email protected]

Bosch Headquarters

  • Midrand, Gauteng
  • Tel.: +27 (011) 6 51 96 00
  • Fax: +27 (011) 6 51 98 80
  • E-Mail: [email protected]

People’s Republic of China

Website: www.bosch-pt.com.cn

China Mainland

  • Bosch Power Tools (China) Co., Ltd.
  • 567, Bin Kang Road
  • Bin Jiang District 310052
  • Hangzhou, P.R.China
  • Service Hotline: 800 8 20 84 84
  • Tel.: +86 (571) 87 77 43 38
  • Fax: +86 (571) 87 77 45 02

HK and Macau Special Administrative Regions

  • Robert Bosch Hong Kong Co. Ltd.
  • 21st Floor, 625 King’s Road
  • North Point, Hong Kong
  • Customer Service Hotline: +852 (21) 02 02 35
  • Fax: +852 (25) 90 97 62
  • E-Mail: [email protected]
  • www.bosch-pt.com.cn

Indonesia

  • PT. Multi Tehaka
  • Kawasan Industri Pulogadung
  • Jalan Rawa Gelam III No. 2
  • Jakarta 13930
  • Indonesia
  • Tel.: +62 (21) 46 83 25 22
  • Fax: +62 (21) 46 82 86 45/68 23
  • E-Mail: [email protected]
  • www.multitehaka.co.id

Philippines

  • Robert Bosch, Inc.
  • 28th Floor Fort Legend Towers,
  • 3rd Avenue corner 31st Street,
  • Fort Bonifacio Global City,
  • 1634 Taguig City, Philippines
  • Tel.: +63 (2) 870 3871
  • Fax: +63 (2) 870 3870
  • [email protected]
  • www.bosch-pt.com.ph

Bosch Service Center:

  • 9725-27 Kamagong Street
  • San Antonio Village
  • Makati City, Philippines
  • Tel.: +63 (2) 899 9091
  • Fax: +63 (2) 897 6432
  • [email protected]

Malaysia

  • Robert Bosch (S.E.A.) Pte. Ltd.
  • No. 8A, Jalan 13/6
  • G.P.O. Box 10818
  • 46200 Petaling Jaya
  • Selangor, Malaysia
  • Tel.: +60 (3) 7966 3194
  • Fax: +60 (3) 7958 3838
  • [email protected]
  • Toll-Free: 1800 880 188
  • www.bosch-pt.com.my

Thailand

  • Robert Bosch Ltd.
  • Liberty Square Building
  • No. 287, 11 Floor
  • Silom Road, Bangrak
  • Bangkok 10500
  • Tel.: +66 (2) 6 31 18 79 – 18 88 (10 lines)
  • Fax: +66 (2) 2 38 47 83
  • Robert Bosch Ltd., P. O. Box 2054
    Bangkok 10501, Thailand
  • Bosch Service – Training Centre
  • 2869-2869/1 Soi Ban Kluay
  • Rama IV Road (near old Paknam Railway)
  • Prakanong District
  • 10110 Bangkok

Thailand

  • Tel.: +66 (2) 6 71 78 00 – 4
  • Fax: +66 (2) 2 49 42 96
  • Fax: +66 (2) 2 49 52 99

Singapore

 

Vietnam

  • Robert Bosch Vietnam Co. Ltd
  • 10/F, 194 Golden Building
  • 473 Dien Bien Phu Street
  • Ward 25, Binh Thanh District
  • 84 Ho Chi Minh City
  • Vietnam
  • Tel.: +84 (8) 6258 3690 ext. 413
  • Fax: +84 (8) 6258 3692
  • [email protected]
  • www.bosch-pt.com

Disposal

Measuring tools, accessories and packaging should be sorted for environmental-friendly recycling.

Only for EC countries:

Do not dispose of measuring tools into household waste! According the European Guideline 2002/96/EC for Waste Electrical and Electronic Equipment and its implementation into national right, measuring tools that are no longer usable must be collected separately and disposed of in an environmentally correct manner.

Battery packs/batteries:

Do not dispose of battery packs/batteries into household waste, fire or water. Battery packs/ batteries should, if possible, be discharged, collected, recycled or disposed of in an environmental- friendly manner.

Only for EC countries:

Defective or dead out battery packs/batteries must be recycled according the guideline 2006/66/EC. Batteries no longer suitable for use can be directly returned at:

Great Britain

  • Robert Bosch Ltd. (B.S.C.)
  • P.O. Box 98
  • Broadwater Park
  • North Orbital Road
  • Denham
  • Uxbridge
  • UB 9 5HJ
  • Tel. Service: +44 (0844) 736 0109
  • Fax: +44 (0844) 736 0146
  • E-Mail: [email protected]