Bosch GPL5 Operating Instructions

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through beam locations, however, some may
find it more satisfying to mark the beam
location at a variety of points and then create
a straight line through those points to
achieve a level line.
Level
Grading
1. Position tool at the highest point of
the surface to be graded.
2. Turn tool on.
3. Measure distance A and make a note of
the distance.
4. Measure distance B at distance X away
from A and note these distances.
5. Slope = (B – A)/X
Note: To calculate Pitch, set X equal to 12”.
Grade
Squaring
1. Position tool in the corner of the
two surfaces to be squared (as illustrated).
2. Turn tool on.
3. Measure distance A at a point relatively
close to tool and make a note of
the distance.
4. Measure distance B at a point further
away from tool and make a note of
the distance.
Note: The greater the distance between the
two points of measurement, the greater
the accuracy.
5. Compare distance A with distance B.
6. If distance A equals distance B, proceed to
the next step. If distance A does not equal
distance B, then adjust the position of
tool until distance A does equal
distance B and proceed to the next step.
7. Measure distance Y at a point relatively
close to tool and make a note of
the distance.
8. Measure distance Z at a point further away
from tool and make a note of
the distance.
Note: The greater the distance between the
two points of measurement, the greater
the accuracy.
9. Compare distance Y with distance Z
Square
10. If distance Y equals distance Z, then
the two surfaces are square. If distance Y
does not equal distance Z, then adjust the
position of the surface which these
distances relate to until distance Y does
equal distance Z.
Note: The plumb beams can also be used in
operations such as squaring window frames.
B
Y
A
Z
A
B
B
A
x
GPL5 manual-3_REV3:Bosch 10/26/11 6:48 PM Page 11

Bosch GPL5 Specifications

General

Brand	Bosch
Model	GPL5
Category	Laser Level
Language	English