Manual Bosch GLL 2-15 (page 15 of 205) (English, German, Dutch, Danish, French, Italian, Polish, Portuguese, Swedish, Turkish, Spanish, Norwegian, Finnish)

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English | 15

Bosch Power Tools 1 609 92A 0KH | (28.4.14)

– 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 d

max

is calculated as

follows:

max

= double distance of the walls x 0.3 mm/m

Example: With a 5 metre distance between the walls, the max-

imum deviation must not exceed

max

=2x5mx0.3mm/m=3mm. 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 m

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 la-

ser 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 m 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 through points I and II.

–The difference d between point III and the centre of the la-

ser 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 d

max

is calculated as

follows:

max

= double height of the door opening x 0.3 mm/m

Example: With a door opening height of 2 metres, the maxi-

mum permitted deviation is d

max

=2x2mx0.3mm/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 10, screw the lock-

ing screw 11 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 11.

With the holder 10, the measuring tool can be attached as

follows:

– Mount the holder 10 to the tripod 18 or a commercially

available camera tripod via the 1/4" tripod mount 15. For

fastening to a commercially available construction tripod,

use the 5/8" tripod mount 16.

– The holder 10 can be fastened to steel parts via the

magnets 14.

– The holder 10 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 12 of the holder.

– The holder 10 can also be fastened to pipes or similar

beams using a commercially available strap by threading it

through the opening 13 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)

(see figures G–H)

With the measuring plate 22, 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 22 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.

2,5 m

2 m

OBJ_BUCH-2049-002.book Page 15 Monday, April 28, 2014 4:59 PM

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Bosch GLL 2-15 Manual

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