Bosch GLL 2 [16/118] 5 m 2 5 m

16 | English

1 609 92A 21X | (30.8.16) Bosch Power Tools

– 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 pro-

jected 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.

On the measuring distance of 2x5m=10m, the maximum allowable

deviation is:

10mx±0.5mm/m=±5mm.

Thus, the difference d between points I and III must not exceed 5 mm

(max.).

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. Allow the measuring tool to level in

while in cross-line operation mode with automatic levelling, and direct

the frontal vertical laser line against the door opening.

2,5 m

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