Stanley STHT77611, Manual

12

E

8.

If your measurement is greater than the 

Allowable Distance Between 

a

 and 

b

 for the 

corresponding 

Distance Between Walls 

in the 

following table, the laser must be serviced at an 

authorized service center.

Distance 

Between Walls

Allowable Distance

Between 

a

and

b

30

′

 (9m)

7/16” (11.0mm)

40

′

 (12m)

9/16” (14.4mm)

50

′

 (15m)

23/32” (18.0mm)

Horizontal Beam - Pitch Direction

Checking the horizontal pitch calibration of the 

laser requires a single wall at least 30

′

 (9m) 

long. It is important to conduct a calibration 

check using a distance no shorter than the 

distance of the applications for which the tool 

will be used.

1.

Place the laser against the end of the wall

(Figure 

E

1

).

2.

Move the 

Power/Transport Lock switch to 

the right (Figure 

A

3

) to turn the laser ON in 

self-leveling mode and display the horizontal 

and vertical beams. 

3.

At least 30

′ 

(9m) apart along the laser 

beam, mark 

a

 and 

b

.

4.

Move the laser to the opposite end of the 

wall 

(Figure 

E

2

).

5.

Position the laser toward the first end of the 

same wall and parallel to the adjacent wall.

6.

Adjust the height of the laser so the center 

of the beam is aligned with 

b

.

7.

Directly 

above or below 

a

, mark 

c

 along 

the laser beam (Figure 

E

3

).

8.

Measure the distance between 

a

 and 

c

.

9.

If your measurement is greater than the 

Allowable Distance Between 

a

 and 

c

 for 

the corresponding 

Distance Between 

a

and 

b

 in the following table, the laser must 

be serviced at an authorized service center.

Distance Between 

a

and

b

Allowable Distance

Between 

a

 and 

c

30

′

 (9m)

7/16” (11.0mm)

40

′

 (12m)

9/16” (14.4mm)

50

′

 (15m)

23/32” (18.0mm)

Vertical Beam - Plumb

Checking the vertical (plumb) calibration of the 

laser can be most accurately done when there is 

a substantial amount of vertical height available, ideally 

30

′

 (9m), with one person on the floor positioning 

the laser and another person near a ceiling to mark 

the position of the beam. It is important to conduct 

a calibration check using a distance no shorter than 

the distance of the applications for which the tool will 

be used.

1.

On the floor between two walls, mark a 5 ft. (1.5 

m) line that is parallel to the adjacent wall (Figure

F

1

).

2.

Move the 

Power/Transport Lock switch to the right 

(Figure 

A

3

) to turn the laser ON in self-leveling 

mode and display the horizontal and vertical beams. 

3.

Place the laser at one end of the line on the floor, 

making sure the vertical laser beam is aligned and 

centered on the line.

4.

Where the vertical laser beam appears on the 

ceiling, mark 

a

. (This should be directly over the 

midpoint of the line on the floor.)

5.

Move the laser to the other end of the line on the 

floor (Figure

F

2

).