Stanley STHT77502-1 Original Instructions

8
ENGLISH
Level Beam Accuracy
Checking the horizontal scan calibration of the laser requires
two walls 30' (9m) apart. 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 on a tripod facing straight ahead toward a
wall (Figure D1).
2. Move the Power/Transport Lock switch to the right (Figure
A3) to turn the laser ON in self-leveling mode and display
the horizontal and vertical beams.
3. Mark P1 where the horizontal and vertical beams cross on
thewall.
4. Turn the laser180º.
5. Mark P2 where the horizontal and vertical beams cross on
the wall (FigureD2).
6. Turn the laser 180º and move it near the first wall
(FigureD3).
7. Near P1, mark P3 where the horizontal and vertical beams
cross on thewall.
8. Turn the laser 180º (FigureD4).
9. Near P2, mark P4 where the horizontal and vertical beams
cross on thewall.
10. Measure the vertical distance between P1 andP3.
11. Measure the vertical distance between P2 andP4.
12. If your measurement is greater than the Allowable Distance
Between P1 & P3 or P2 & P4 for the corresponding Distance
Between Walls in the following table, the laser must be
serviced at an authorized servicecenter.
Turning the Laser On
1. Place the laser on a smooth, flat, level surface, with the
laser facing straight ahead toward the opposing wall
(0ºposition).
2. Turn the laser ON to display the front cross beams. Either:
a. Move the Power/Transport Lock switch to the left to keep
the pendulum locked and display the cross beams in
manualmode (FigureA1).
b. Move the Power/Transport Lock switch to the right to
unlock the pendulum and display the cross beams in
self-leveling mode (FigureA3).
3. Press (FigureA4) once to display a horizontal laser line,
a second time to display a vertical line, and a third time
todisplay a horizontal line and a verticalline.
4. Check the laserbeams.
a. If the laser is tilted so much that it cannot self-level
(>4°), or the laser is not level in manual mode, the laser
beams willflash.
b. If the laser beams flash, the laser is not level (or
plumb) and should NOT BE USED for determining or
Checking Laser Accuracy
The laser tools are sealed and calibrated at the factory. It is
recommended that you perform an accuracy check prior
to using the laser for the first time (in case the laser was
exposed to extreme temperatures) and then regularly to
ensure the accuracy of your work. When performing any of
the accuracy checks listed in this manual, follow these
guidelines:
• Use the largest area/distance possible, closest to the
operating distance. The greater the area/ distance, the
easier to measure the accuracy of thelaser.
• Place the laser on a smooth, flat, stable surface that is
level in bothdirections.
• Mark the center of the laserbeam.
Battery Safety

WARNING: Batteries can explode, or leak, and can
cause injury or fire. To reduce this risk:
• Carefully follow all instructions and warnings on the
battery label andpackage.
• Always insert batteries correctly with regard to
polarity (+ and –), as marked on the battery and
theequipment.
• Do not short batteryterminals.
• Do not charge disposablebatteries.
• Do not mix old and new batteries. Replace all batteries
at the same time with new batteries of the same
brand andtype.
• Remove dead batteries immediately and dispose of
per localcodes.
• Do not dispose of batteries infire.
• Keep batteries out of reach ofchildren.
• Remove batteries when the device is not inuse.
Installing AA Batteries
Load new AA batteries in the STHT77502-1 or
STHT77592-1laser.
1. Turn the laser upsidedown.
2. On the bottom of the laser, lift up the latch to open the
battery compartment cover (FigureB1).
3. Insert four new, high-quality, name brand AA batteries,
making sure to position the - and + ends of each battery as
noted inside the battery compartment (FigureB2).
4. Push the battery compartment cover closed until it snaps in
place (FigureB3).
When the laser is not in use, keep the Power/ Transport
Lock switch in the center (OFF) position (FigureA2) to save
batterypower.
marking level or plumb. Try repositioning the laser on a
levelsurface.
5. If ANY of the following statements are TRUE, continue with
the instructions for Checking Laser Accuracy BEFORE
USING THE LASER for aproject.
a. This is the first time you are using the laser (in case
the laser was exposed to extreme temperatures).
b. The laser has not been checked for accuracy in
awhile.
c. The laser may have been dropped.

Stanley STHT77502-1 Specifications

General

Brand	Stanley
Model	STHT77502-1
Category	Laser Level
Language	English