BOSCH GTL 3 Professional Tile Laser Instruction Manual

: June 12, 2024
: Bosch

Table of Contents

BOSCH GTL 3 Professional Tile Laser
Product Information
Product Usage Instructions
Safety Instructions
Product Description and Specifications
Product Features
Technical Data
Assembly
Operation
Working Advice
Example applications
Maintenance and Service
References
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Download This Manual (PDF format)

BOSCH GTL 3 Professional Tile Laser

BOSCH- GTL 3 -Professional -Tile -Laser - product
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Product Information

Product Name: GTL 3
Professional Manufacturer: Robert Bosch Power Tools GmbH
Model Number: 1 609 92A 8LU
Country of Origin: Germany
Website: www.bosch-pt.com

Product Usage Instructions

Safety Instructions:
- The measuring tool is delivered with a laser warning sign.
- Only have the measuring tool repaired by qualified personnel using original replacement parts to ensure the safety of the tool.
Product Description:
- Refer to the illustrations in the front section of the user manual for a better understanding of the product.
Components:
- The components shown in the illustrations correspond to the numbering on the graphic page.
Technical Specifications:
- Tile laser model: GTL 3
- Part number: 3 601 K15 2..
- Range: 20m – Accuracy: 2mm/m
- Laser wavelength: 630-650 nm
- Laser class: < 2 mW
- Operating mode: Continuous radiation emission
- Battery life: 18 hours (continuous use), 12 hours (with pulse mode)
- Weight: 0.44 kg
Installation:
- Insert or replace batteries according to the instructions provided.
Operation:
- Follow the instructions provided for proper operation of the measuring tool.
Working Guidelines:
- Do not use the laser lines projected on the wall for alignment as the tool is not self-leveling, resulting in distorted lines.
Maintenance and Service:
- Perform regular maintenance and cleaning as instructed.
- For repair, maintenance, and spare parts inquiries, contact the customer service department.
- Additional service addresses can be found on the manufacturer’s website.
Disposal:
- Follow proper disposal procedures according to local regulations.

Please note that this is a partial extract from the user manual. For complete and detailed instructions, refer to the original user manual provided with the product.

Safety Instructions

All instructions must be read and observed in order for the measuring tool to function safely. The safeguards integrated into the measuring tool may be compromised if the measuring tool is not used in
accordance with these instructions. Never make warning signs on the measuring tool un recognizable. SAVE THESE INSTRUCTIONS FOR FUTURE REFER-ENCE AND INCLUDE THEM WITH THE MEASURING TOOL WHEN TRANSFERRING IT TO A THIRD PARTY.

Warning: If operating or adjustment devices other than those specified here are used or other procedures are carried out, this can lead to dangerous exposure to radiation.
The measuring tool is delivered with a laser warning sign (marked in the illustration of the measuring tool on the graphics page).
If the text of the laser warning label is not in your national language, stick the provided warning la-bel in your national language over it before operating for the first time.
Do not direct the laser beam at persons or animals and do not stare into the direct or reflected laser beam yourself. You could blind somebody, cause accidents or damage your eyes.
If laser radiation hits your eye, you must close your eyes and immediately turn your head away from the beam.
Do not make any modifications to the laser equipment.
Do not use the laser goggles (accessory) as protective goggles. The laser goggles make the laser beam easier to see; they do not protect you against laser radiation.
Do not use the laser goggles (accessory) as sunglasses or while driving. The laser goggles do not provide full UV protection and impair your ability to see colours.
Have the measuring tool serviced only by a qualified specialist using only original replacement parts. This will ensure that the safety of the measuring tool is maintained.
Do not let children use the laser measuring tool un-supervised. They could unintentionally blind them-selves or other persons.
Do not use the measuring tool in explosive atmospheres which contain flammable liquids, gases or dust. Sparks may be produced inside the measuring tool, which can ignite dust or fumes.
Keep the measuring tool and the magnetic accessories away from implants and other medical devices, e.g. pacemakers or insulin pumps. The magnets inside the measuring tool and accessories generate a field that can impair the function of implants and medical devices.
Keep the measuring tool and the magnetic accessories away from magnetic data storage media and magnetically sensitive devices. The effect of the magnets inside the measuring tool and accessor-ies can lead to irreversible data loss.

Product Description and Specifications

Please observe the illustrations at the beginning of this operating manual.

Intended Use
The measuring tool is intended for measuring and checking right angles and for aligning tiles at angles of 45°and 90°. The measuring tool is suitable for indoor and outdoor use. This product is a consumer laser product in accordance with EN 50689.

Product Features

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

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Laser warning label
Laser beam outlet aperture
On/off button
Battery warning
Magnet
Serial number
Battery compartment cover locking mechanism
Battery compartment cover
Laser target plate
Levelling plate side notch
Levelling plate
Laser viewing glasses
Protective bag
- Accessories shown or described are not included with the product as standard. You can find the complete se-lection of accessories in our accessories range.

Technical Data

Tile laser	GTL 3
Article number	3 601 K15 2..
Working area (with laser tar- get plate)A)	20 m
Angle accuracyB)C)D)	±0.2 mm/m
Operating temperature	–10 °C to +50 °C
Storage temperature	–20 °C to +70 °C
Max. altitude	2000 m
Relative air humidity max.	90 %
Pollution degree according to IEC 61010-1	2E)
Laser class	2
Laser type	630−650 nm, < 2 mW
C₆	2

The working range may be reduced by unfavourable environmental conditions (e.g. direct sunlight).
At 20–25 °C
The angle accuracy between the 45° laser line and the 90°laser line is a maximum of ±0.4 mm/m.
The values stated presuppose normal to favourable environmental conditions (e.g. no vibration, no fog, no smoke, no direct sunlight). Extreme fluctuations in temperature can cause deviations in accuracy.
Only non-conductive deposits occur, whereby occasional temporary conductivity caused by condensation is expected.

The serial number (6) on the type plate is used to clearly identify your measuring tool.

Assembly

Inserting/Changing the batteries
It is recommended that you use alkaline manganese batteries to operate the measuring tool. To open the battery compartment cover (8), press the locking mechanism (7) and lift open the battery
compartment cover. Insert the batteries. When inserting the batteries, ensure that the polarity is correct according to the illustration on the inside of the battery compartment. If the battery warning (4) flashes, the batteries are get-ting low. The measuring tool can be operated for approx. two more hours once the warning begins to flash. If the battery warning (4) remains lit up, no further measurements can be taken. The measuring tool switches off automatically after a short time. Always replace all the batteries at the same time. Only use batteries from the same manufacturer and which have the same capacity.

Take the batteries out of the measuring tool when you are not using it for a prolonged period of time. The batteries can corrode and self-discharge during prolonged storage in the measuring tool.

Operation

Starting Operation

Protect the measuring tool from moisture and direct sunlight.
Do not expose the measuring tool to any extreme temperatures or variations in temperature. For ex-ample, do not leave it in a car for extended periods of time. In case of large variations in temperature, allow the measuring tool to adjust to the ambient temperature before putting it into operation. The precision of the measuring tool may be compromised if exposed to extreme temperatures or variations in temperature.
Avoid substantial knocks to the measuring tool and avoid dropping it. Always carry out an accuracy check before continuing work if the measuring tool has been subjected to severe external influences (see “Accuracy Check of the Measuring Tool”, page 16).

Switching on/off
To switch on the measuring tool, press the on/off button (3) once briefly. As soon as it is switched on, the measuring tool emits the three laser lines (0°, 45° and 90°) from the outlet apertures (2). The battery warning (4) also lights up for 3 s.

Do not direct the laser beam at persons or animals and do not stare into the laser beam yourself (even from a distance).

Pressing the on/off button (3) a second time switches the measuring tool from 3‑line mode to 2‑line mode: Only the 0° and 90° laser lines are emitted in this mode. To switch off the measuring tool, press the on/off button (3) a third time.

Never leave the measuring tool unattended when switched on, and ensure the measuring tool is switched off after use. Others may be blinded by the laser beam.

Deactivating the automatic shut-off function
The measuring tool automatically switches itself off after 30 min of operation. To deactivate the automatic shut-off function, press and hold the on/off button (3) for 3 s when switching on the measuring tool. If the automatic shut-off function is de-activated, the laser lines will flash briefly when the measuring tool is first switched on. To activate the automatic shut-off function, switch the measuring tool off and then switch it back on again by pressing the on/off button (3) briefly. Once the measuring tool is switched back on, the laser lines will not flash.

Accuracy Check of the Measuring Tool
Influences on Accuracy
The largest influence is exerted by the ambient temperature. In particular, temperature differences that occur from the ground upwards can refract the laser beam. For this reason, place the measuring tool as close as possible to the work surface and secure it with the base running as near parallel to the work surface as possible. In addition to external influences, device-specific influences (e.g. falls or heavy impacts) can also lead to deviations. For this reason, check the angle accuracy each time before beginning work. 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 angle accuracy between the 0° and 90°laser lines
For this check, you will need a clear area of firm, level ground measuring approx. 10 × 5 m.

Place the measuring tool in one corner of the measuring area. Switch the measuring tool on and set it up so that the 0° laser line runs down the long side of the measuring area and the 90° laser line runs down the short side of the measuring area.
Mark the point where the two laser lines intersect on the ground (point Ⅰ). Make another mark in the centre of the 0° laser line at a distance of 5 m (point Ⅱ) and at a distance of 10 m (point Ⅲ).
Position the measuring tool (without rotating it) at a distance of 5 m so that the intersection point of the laser lines meets point Ⅱ and the 0° laser line runs through point Ⅲ. Mark the centre of the 90° laser line at a distance of 5 m (point Ⅳ).
Rotate the measuring tool through 90° so that the centre of the 0° laser line runs through point Ⅳ. The laser lines must still intersect at point Ⅱ. At a distance of 5 m, mark the centre of the 90° laser line as point Ⅴ as close as possible to point Ⅰ.
The discrepancy d between points Ⅴ and Ⅰ is the actual deviation of the 0° and 90° laser lines from the right angle.

The maximum permitted deviation over the measuring distance of 2 × 5 m = 10 m is as follows:
10 m × ±0.2 mm/m = ±2 mm. The discrepancy d between points Ⅰ and Ⅴ must therefore amount to no more than 2 mm.

Checking the angle accuracy between the 0° and 45°laser lines
For this check, you will need a clear area of firm, level ground measuring approx. 10 × 5 m.

Place the measuring tool in one corner of the measuring area. Switch the measuring tool on and set it up so that the 0° laser line runs down the long side of the measuring area and the 90° laser line runs down the short side of the measuring area.
Mark the point where the two laser lines intersect on the ground (point Ⅰ). Make another mark in the centre of the 0° laser line at a distance of 5 m (point Ⅱ) and at a distance of 10 m (point Ⅲ).
Position the measuring tool (without rotating it) at a distance of 5 m so that the intersection point of the laser lines meets point Ⅱ and the 0° laser line runs through point Ⅲ. Mark the centre of the 45° laser line at a distance of 5 m (point Ⅳ).
Rotate the measuring tool through 45° so that the centre of the 0° laser line runs through point Ⅳ. The laser lines must still intersect at point Ⅱ. At a distance of 5 m, mark the centre of the 45° laser line as point Ⅴ.
Rotate the measuring tool through 45° so that the centre of the 0° laser line runs through point Ⅴ. The laser lines must still intersect at point Ⅱ. At a distance of 5 m, mark the centre of the 45° laser line as point Ⅵ.
Rotate the measuring tool through 45° so that the centre of the 0° laser line runs through point Ⅵ. The laser lines must still intersect at point Ⅱ. At a distance of 5 m, mark the centre of the 45° laser line as point Ⅶ as close as possible to point Ⅰ.
The discrepancy d between points Ⅰ and Ⅶ is the actual deviation of the 0° and 45° laser lines.

The maximum permitted deviation over the measuring distance of 4 × 5 m = 20 m is as follows:
20 m × ±0.4 mm/m* = ±8 mm. The discrepancy d between points Ⅰ and Ⅶ must therefore amount to no more than 8 mm.

The value of ±0.4 mm/m is based on the angle accuracy of ±0.2 mm/m plus a potential uncertainty of 0.2 mm/m when rotating the measuring tool.

Working Advice

Only the centre of the laser line must be used for marking. The width of the laser line changes depend-ing on the distance.
Always place the measuring tool flat on the floor or mount it level on the wall. If the measuring tool is not placed flat or mounted level, the angle is less than 45° or 90°.
Never align using the laser lines that the measuring tool projects onto the wall when the tool is positioned on the floor. The measuring tool is not self-levelling. Therefore, the line on the wall is distorted.
Only ever place the measuring tool on a clean levelling plate. If the surface of the levelling plate (11) is uneven or dirty, the measuring tool is not level and may give false measurement readings.

The reference point with which to align tiles is the inter-section point P of the laser lines just in front of the measuring tool. To transmit an angle, the measuring tool must be rotated around this intersection point .

BOSCH- GTL 3 -Professional -Tile -Laser - 07

Working with the levelling plate

You can use the levelling plate (11) to lay the measuring tool flat on uneven or soft ground. The levelling plate (11) can also be used to mount the measuring tool to walls. Secure the levelling plate firmly in place on a wall or an angled surface so that it cannot slip, e.g. using commercially available screws. Use a spirit level to ensure the levelling plate is positioned level on the surface.

Positioning the measuring tool on the levelling plate:
Use the magnets (5) on the base to affix the measuring tool to the levelling plate (11). Use the grid of lines on the top of the levelling plate as an aid to position the measuring tool precisely. To transmit 90° or 45° angles, place the levelling plate on a reference edge or on a projecting section of wall and position the measuring tool as depicted on the top of the levelling plate.

Working with the Laser Target Plate

The laser target plate (9) improves visibility of the laser beam in unfavourable conditions and at greater distances. The reflective surface of the laser target plate (9) im-proves visibility of the laser line. The transparent surface enables the laser line to be seen from behind the laser target plate.

BOSCH- GTL 3 -Professional -Tile -Laser - 03

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Laser Goggles
The laser goggles filter out ambient light. This makes the light of the laser appear brighter to the eye.

Do not use the laser goggles (accessory) as protective goggles. The laser goggles make the laser beam easier to see; they do not protect you against laser radiation.
Do not use the laser goggles (accessory) as sunglasses or while driving. The laser goggles do not provide full UV protection and impair your ability to see colours.

Example applications

Checking right angles
Set the measuring tool in a corner of the room and position it so that the 0° laser line runs parallel to the reference line (e.g. wall). Measure the distance between the laser line and the reference line directly next to the measuring tool and again as far as possible from the measuring tool. Align the measuring tool so that both distances are equal. Then, from at least two different points, measure the dis-tances between the 90° laser line and the wall. If the distances to the 90° laser line are equal, the walls are at right angles. Laying tiles in a square arrangement (see figure B) Set the measuring tool in a corner so that the 0° laser line runs parallel to a wall. Lay the first square tile at the point at which the 0° and 90° laser lines intersect. Laying a diagonal arrangement (see figure C) Position the measuring tool so that the 45° laser line marks the diagonal angle of the tile grout.

Tiling kitchens
First, establish the height at which the first row of tiles should start. Use the levelling plate (11) to attach the measuring tool vertically to the wall, so that the 90° laser line indicates the bottom edge of the first row of tiles.

Tiling from edges
Place the measuring tool on the levelling plate (11) on the edge so that one of the levelling plate’s (10) side notches is positioned right on the edge. The 0° laser line should run parallel to an edge. The 90° laser line now marks the bottom row of tiles.

Maintenance and Service

Maintenance and Cleaning
Keep the measuring tool clean at all times. Never immerse the measuring tool in water or other liquids. Wipe off any dirt using a damp, soft cloth. Do not use any detergents or solvents. The areas around the outlet aperture of the laser in particular should be cleaned on a regular basis. Make sure to check for lint when doing this. Only store and transport the measuring tool in the protective pouch (13). If the measuring tool needs to be repaired, send it off in the protective pouch (13).

After-Sales Service and Application Service
Our after-sales service responds to your questions concerning maintenance and repair of your product as well as spare parts. You can find explosion drawings and in-formation on spare parts at:
www.bosch-pt.com
The Bosch product use advice team will be happy to help you with any questions about our products and their accessories. In all correspondence and spare parts orders, please al-ways include the 10‑digit article number given on the nameplate of the product.

Malaysia
Robert Bosch Sdn. Bhd.(220975-V) PT/SMY
No. 8A, Jalan 13/6
46200 Petaling Jaya
Selangor
Tel.: (03) 79663194
Toll-Free: 1800 880188
Fax: (03) 79583838
E-Mail: kiathoe.chong@my.bosch.com
www.bosch-pt.com.my

Great Britain
Robert Bosch Ltd. (B.S.C.)
P.O. Box 98
Broadwater Park
North Orbital Road
Denham Uxbridge
UB 9 5HJ
At www.bosch-pt.co.uk you can order spare parts or ar-range the collection of a product in need of servicing or repair.
Tel. Service: (0344) 7360109
E-Mail: boschservicecentre@bosch.com
You can find further service addresses at: www.bosch- pt.com/serviceaddresses

Disposal
Measuring tools, accessories and packaging should be recycled in an environmentally friendly manner.

Do not dispose of measuring tools or batteries with household waste.

Only for EU countries:
According to the Directive 2012/19/EU on waste electrical and electronic equipment and its transposition into national law, measuring tools that are no longer usable, and, according to the Directive 2006/66/EC, defective or drained batteries must be collected separately and disposed of in an environmentally correct manner. If disposed incorrectly, waste electrical and electronic equipment may have harmful effects on the environment and human health, due to the potential presence of hazardous substances.

Only for United Kingdom:
According to The Waste Electrical and Electronic Equipment Regulations 2013 (SI 2013/3113) (as amended) and the Waste Batteries and Accumulators Regulations 2009 (SI 2009/890) (as amended), products that are no longer usable must be collected separately and dis-posed of in an environmentally friendly manner.