Bosch GLL 2 Professional Original Instructions Manual page 13

OBJ_BUCH-2413-002.book Page 13 Tuesday, August 30, 2016 12:40 PM
Checking the Height Accuracy of the Horizontal Line
For this check, a free measuring distance of 5 m on a firm surface between
two walls A and B is required.
– Mount the measuring tool onto a tripod or place it on a firm and level
surface close to wall A. Switch on the measuring tool. Select cross-line
operation with automatic levelling.
A
– 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).
A
180°
– 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).
Bosch Power Tools
5 m
1 609 92A 21X | (30.8.16)
English | 13
B
B