GCL 25 Professional - Niveau laser BOSCH - Free user manual and instructions

USER MANUAL GCL 25 Professional BOSCH

OBJ_BUCH-1546-002.book Page 2 Monday, July 9, 2012 10:30 AM3 | 1 618 C00 50R | (9.7.12) Bosch Power Tools GCL 25

OBJ_BUCH-1546-002.book Page 3 Monday, July 9, 2012 10:30 AM1 618 C00 50R | (9.7.12) Bosch Power Tools 4 |

OBJ_BUCH-1546-002.book Page 4 Monday, July 9, 2012 10:30 AM5 | 1 618 C00 50R | (9.7.12) Bosch Power Tools

• The accessories illustrated or described are not included as standard delivery. Technical Data Assembly Inserting/Replacing the Battery Alkali-manganese batteries are recommended for the meas- uring tool. To open the battery lid 9, slide the latch 8 in the direction of the arrow and fold the battery lid up. Insert the batteries. When inserting, pay attention to the correct polarity accord- ing to the representation on the inside of the battery lid. When the batteries are low, the battery low indicator 3 flashes red. Additionally, the laser beams flash for approx. 5 s every 10 minutes. When the flashing initially begins, the measuring tool can be operated for approx. 1 more hour. When the bat- teries become empty, the laser beams flash one more time di- rectly prior to the automatic shut-off. Always replace all batteries at the same time. Only use batter- ies from one brand and with the identical capacity. f Remove the batteries from the measuring tool when not using it for extended periods. When storing for ex- tended periods, the batteries can corrode and discharge themselves. Operation Initial Operation f Protect the measuring tool against moisture and direct sun light. f Do not subject the measuring tool to extreme tempera- tures or variations in temperature. As an example, do not leave it in vehicles for long time. In case of large varia- tions 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 tempera- ture, the accuracy of the measuring tool can be impaired. f Avoid heavy impact or falling of the measuring tool. After heavy exterior impact on the measuring tool, an accu- racy check should always be carried out before continuing to work (see “Levelling Accuracy”). Point and line laser GCL 25 Article number 3 601 K66 B00 Working range

– Laser lines – Horizontal point beams – Point beam, upward – Point beam, downward 10 m 30 m 10 m

Levelling accuracy – Laser lines and horizontal point beams – Vertical point beams ±0.3 mm/m ±0.5 mm/m Self-levelling range, typically ± 4° Levelling duration, typically <4s Operating temperature –10 °C ... +50 °C Storage temperature –20 °C ... +70 °C Relative air humidity, max. 90 % Laser class

Tripod mount 1/4", 5/8" Batteries 4x1.5VLR06(AA)

1) The working range can be decreased by unfavourable environmental conditions (e.g. direct sun irradiation).

The measuring tool can be clearly identified with the serial number 11 on the type plate. Battery life for the operating modes – Cross and point-line operation – 5-point operation – Line operation 12 h 24 h 30 h Weight according to EPTA-Procedure 01/2003

Dimensions (length x width x height) 155x56x118mm Degree of protection IP 54 (dust and splash water protected) Point and line laser GCL 25

1) The working range can be decreased by unfavourable environmental conditions (e.g. direct sun irradiation).

The measuring tool can be clearly identified with the serial number 11 on the type plate. OBJ_BUCH-1546-002.book Page 12 Monday, July 9, 2012 10:30 AMEnglish | 13 Bosch Power Tools 1 618 C00 50R | (9.7.12) f 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, slide the On/Off switch 4 to the “on” position (when working without automatic level- ling) or to the “on” position (when working with automat- ic levelling). Immediately after switching on, the measuring tool sends laser beams out of the exit openings 1. f 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 4 to the “off” position. When switching off, the levelling unit is locked. Deactivating the Automatic Shut-off When no button on the measuring tool is pressed for approx. 30 minutes, the measuring tool automatically switches off to save the batteries. To switch on the measuring tool after automatic shut-off, either slide the On/Off switch 4 to the “off” position and then switch the measuring tool on again or press the operating mode button 2 once. To deactivate the automatic shut-off, keep the operating mode button 2 pressed for at least 3 s (while the measuring tool is switched on). Deactivation of the automatic shut-off is confirmed by brief flashing of the laser beams. f Do not leave the switched on measuring tool unattend- ed and switch the measuring tool off after use. Other persons could be blinded by the laser beam. To activate the automatic shut-off, switch the measuring tool off and then on again. Operating Modes The measuring tool has several operating modes between which you can switch at any time: – Cross and point-line operation: The measuring tool gener- ates a horizontal and a vertical laser line facing toward the front as well as a vertical point beam each facing upward and downward, and a horizontal point beam each facing toward the front and to both sides. – 5-point operation: The measuring tool generates a vertical point beam each facing upward and downward, as well as a horizontal point beam each facing toward the front and to both sides. – Horizontal line operation: The measuring tool generates a horizontal laser line facing frontward. – Vertical line operation: The measuring tool generates a ver- tical laser line facing frontward. All point beams run at a 90° angle to each other; the laser lines also cross each other at a 90° angle. After switching on, the measuring tool is in cross-line and point-line operation. To change the operating mode, press the operating mode button 2. All operating modes can be selected both with and without au- tomatic levelling. Automatic Levelling Working with Automatic Levelling (see figures C–E) Position the measuring tool on a level and firm support, attach it to the holder 15 or to the tripod 16. When working with automatic levelling, push the On/Off switch 4 to the “ on” position. After switching on, the automatic levelling function automati- cally compensates irregularities within the self-levelling range of ± 4°. The levelling is finished as soon as the laser points or laser lines do not move any more. If the automatic levelling function is not possible, e.g. be- cause the surface on which the measuring tool stands devi- ates by more than 4° from the horizontal plane, the laser beams flash. This alarm is deactivated within 10 s after switching on, in order to allow adjustment of the measuring tool. Set up the measuring tool in 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 beams light up continuously. In case of ground vibrations or position changes during oper- ation, the measuring tool is automatically levelled in again. To avoid errors by moving the measuring tool, check the position of the laser beams with regard to the reference points upon re-levelling. Working without Automatic Levelling (see figure F) For work without automatic levelling, push the On/Off switch 4 to the “ on” position. When the automatic levelling is switched off, the laser lines flash continuously. When automatic levelling is switched off, you can hold the measuring tool freely in your hand or place it on an inclinded surface. The laser beams no longer necessarily run vertical to each other. Levelling Accuracy Influences on Accuracy The ambient temperature has the greatest influence. Espe- cially 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 commer- cially 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. When the accuracy of the horizontal point beams is within the maximum allowed deviation, then the accuracy of the vertical point beams and the laser lines is thus also checked. Should the measuring tool exceed the maximum deviation during one of the tests, please have it repaired by a Bosch af- ter-sales service. OBJ_BUCH-1546-002.book Page 13 Monday, July 9, 2012 10:30 AM14 | English 1 618 C00 50R | (9.7.12) Bosch Power Tools Checking the Horizontal Levelling Accuracy of the Lateral Axis A free measuring distance of 20 m on a firm surface in front of a wall is required for the check. – Mount the measuring tool onto the holder or a tripod, or place it on a firm and level surface at a distance of 20 m to the wall. Switch the measuring tool on and select 5-point operation. – Direct one of the two lateral laser beams, that run along- side the lateral axis of the measuring tool, at the wall. Allow the measuring tool to level in. Mark the centre of the laser beam on the wall (point I). – Rotate the measuring tool by approx. 180° without chang- ing its height. Allow it to level in and mark the centre point of the other lateral laser beam on the wall (point II). Take care that point II is as vertical as possible above or below point I. – The difference d of both marked points I and II on the wall results in the actual height deviation of the measuring tool alongside the lateral axis. On the measuring distance of 2 x 20 m = 40 m, the maximum allowable deviation is: 40 m x ± 0.3 mm/m = ± 12 mm. Thus, the difference d between points I and II may not exceed 12 mm (max.). Checking the Horizontal Levelling Accuracy of the Longi- tudinal Axis A free measuring distance of 20 m on a firm surface between two walls A and B is required for the check. – 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 and select 5-point operation. – Direct the horizontal laser beam, which runs parallel to the longitudinal axis of the measuring tool, at the close wall A. Allow the measuring tool to level in. Mark the centre of the laser beam on the wall (point I). – Turn the measuring tool around by 180°, allow it to level in and mark the centre point of the laser beam on the oppo- site 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 the tripod or by underlaying, if required) in such a manner that the cen- tre point of the laser beam is projected exactly against the previously marked point II on wall B. 20 m

OBJ_BUCH-1546-002.book Page 14 Monday, July 9, 2012 10:30 AMEnglish | 15 Bosch Power Tools 1 618 C00 50R | (9.7.12) – Rotate the measuring tool by 180° without changing the height. Allow it to level in and mark the centre point of the laser beam on wall A (point III). Take care that point III is as vertical as possible above or below point I. – The difference d of both marked points I and III on wall A results in the actual height deviation of the measuring tool alongside the Longitudinal axis. On the measuring distance of 2 x 20 m = 40 m, the maximum allowable deviation is: 40 m x ± 0.3 mm/m = ±12 mm. Thus, the difference d between points I and III may not ex- ceed 12 mm (max.). Working Advice f For marking, always use only the centre of the laser point or the laser line. The size of the laser point as well as the width of the laser line change with distance. Working with the Tripod (Accessory) A tripod offers a stable, height-adjustable measuring support. Position the measuring tool with the 1/4" tripod mount 7 onto the thread of the tripod 16 or a commercially available cam- era tripod. For fastening to a commercially available construc- tion tripod, use the 5/8" tripod mount 6. Tighten the measur- ing tool with the tripod mounting stud. Adjust the tripod roughly before switching on the measuring tool. Fastening with the Universal Holder (Accessory) With the universal holder 15, you can fasten the measuring tool, e.g., to vertical surfaces, pipes or magnetizable materials. The universal holder is also suitable for use as a ground tripod and makes the height adjustment of the measuring tool easier. Adjust the universal holder roughly before 15 switching on the measuring tool. Working with the Measuring Plate (Accessory) (see figures A–B) With the measuring plate 14, 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 14 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 meas- uring plate. Working with the Laser Target Plate The laser target plate 13 increases the visibility of the laser beam under unfavourable conditions and at large distances. The reflective part of the laser target plate 13 improves the visibility of the laser line. Thanks to the transparent part, the laser line is also visible from the back side of the laser target 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. f Do not use the laser viewing glasses as safety goggles. The laser viewing glasses are used for improved visualisa- tion of the laser beam, but they do not protect against laser radiation. f 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 (see figures C – F) Applicational examples for the measuring tool can be found on the graphics pages. Always position the measuring tool close to the surface or edge subject to checking, and allow it to level in prior to each measurement. Always measure the distances between laser beam or laser line and a surface or edge at two points as far as possible away from each other (e.g. with the measurment plate 14). Maintenance and Service Maintenance and Cleaning Store and transport the measuring tool only in the supplied case. 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 man- ufacturing 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. For repairs, only send in the measuring tool in the case. After-sales Service and Customer Assistance Our after-sales service responds to your questions concern- ing 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 ques- tions concerning possible applications and adjustment of products and accessories.

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