Stanley STHT77498 User Manual

E
10
• Do not operate the laser in explosive atmospheres,
such as in the presence of ammable liquids, gases,
or dust. This tool may create sparks which may ignite the
dust or fumes.
• Store an idle laser out of reach of children and other
untrained persons. Lasers are dangerous in the hands of
untrained users.
• Tool service MUST be performed by qualied repair
personnel. Service or maintenance performed by unqualied
personnel may result in injury. To locate your nearest Stanley
service center go to http://www.2helpU.com.
• Do not use optical tools such as a telescope or transit to
view the laser beam. Serious eye injury could result.
• Do not place the laser in a position which may cause
anyone to intentionally or unintentionally stare into the
laser beam. Serious eye injury could result.
• Do not position the laser near a reective surface which
may reect the laser beam toward anyone’s eyes. Serious
eye injury could result.
• Turn the laser off when it is not in use. Leaving the laser
on increases the risk of staring into the laser beam.
• Do not modify the laser in any way. Modifying the tool may
result in hazardous laser radiation exposure.
• Do not operate the laser around children or allow
children to operate the laser. Serious eye injury may result.
• Do not remove or deface warning labels. If labels are
removed, the user or others may inadvertently expose
themselves to radiation.
• Position the laser securely on a level surface. If the laser
falls, damage to the laser or serious injury could result.
Personal Safety
• Stay alert, watch what you are doing, and use common sense
when operating the laser. Do not use the laser when you are
tired or under the inuence of drugs, alcohol, or medication.
A moment of inattention while operating the laser may result
in serious personal injury.
• Use personal protective equipment. Always wear eye
protection. Depending on the work conditions, wearing
protective equipment such as a dust mask, non-skid safety
shoes, hard hat, and hearing protection will reduce personal
injury.
Tool Use and Care
• Do not use the laser if the Power/Transport Lock switch
does not turn the laser on or off. Any tool that cannot be
controlled with the switch is dangerous and must be repaired.
• Follow instructions in the Maintenance section of this
manual. Use of unauthorized parts or failure to follow
Maintenance instructions may create a risk of electric shock
or injury.
Battery Safety
WARNING:
Batteries can explode, or leak, and can cause
injury or re. 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 re.
• 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 STHT77498 or STHT77499 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
B 1
).
3.
Insert two new, high-quality, name brand AA batteries, making
sure to position the - and + ends of each battery as noted
inside the battery compartment (Figure
B 2
).
4.
Push the battery compartment cover closed until it snaps in
place (Figure
B 3
).
When the laser is not in use, keep the Power/Transport Lock
switch in the center (OFF) position (Figure
A 2
) to save
battery power.
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 horizontal and vertical
laser beams. Either:
• Move the Power/Transport Lock switch to the left to keep
the pendulum locked and display the cross beams in
manual mode (Figure
A 1
).
• Move the Power/Transport Lock switch to the right to
unlock the pendulum and display the cross beams in
self-leveling mode (Figure
A 3
).
3.
Check the horizontal and vertical laser beams.
• 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.
• If the laser beams ash, the laser is not level (or plumb)
and should NOT BE USED for determining or marking
level or plumb. Try repositioning the laser on a level
surface.
4.
If ANY of the following statements are TRUE, continue with
the instructions for Checking Laser Accuracy BEFORE
USING THE LASER for a project.
• This is the first time you are using the laser (in case the
laser was exposed to extreme temperatures).
• The laser has not been checked for accuracy in a
while.
• The laser may have been dropped.
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 rst 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, at, stable surface that is
level in both directions.
• Mark the center of the laser beam.
Horizontal Beam - Scan Direction
Checking the horizontal scan calibration of the laser requires
two walls at least 30′ (9m) 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 back of the laser against a wall and facing straight
ahead toward the opposing wall (Figure
D 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.
Turn the laser 45º counter-clockwise so that the right-most
end of the laser line is displayed on the wall.
4.
Mark
a
on the center of the beam on the wall.
5.
Turn the laser 90º clockwise so that the left-most end of
the laser line is displayed near
a
(Figure
D 2
).
6.
Mark
b
on the center of the beam on the wall.
7.
Measure the vertical distance between
a
and
b
.

Stanley STHT77498 Specifications

General

Brand	Stanley
Model	STHT77498
Category	Measuring Instruments
Language	English