Maintenance; Troubleshooting - Stanley STHT77502-1 Original Instructions Manual

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long as it is positioned on a flat surface within average ± 4°
of level. No manual adjustments are required.
Use the laser on a smooth, flat, level, surface.
Turning the Laser Off
Slide the Power/Transport Lock switch to the OFF position
(Figure A2) when the laser is not in use. If the switch is not
placed in the OFF position, the laser will not turn off.
Using the Laser with the Bracket
A bracket (Figure H) is included with the laser so you can easily
attach the laser to a stud, ceiling grid, or pole.
1. Securely attach the laser to the bracket.
a. Using the 1/4-20 thread on the bottom, side, or back
of the laser (Figure C), position the laser on the 1/4-20
thread on the bracket arm (Figure H1).
b. Turn the laser knob (Figure H2) clockwise to lock the laser
on the 1/4-20 thread on the bracket arm.
2. If needed, change the height or position of the laser on
the bracket.
a. Turn the adjustment knob (Figure H3) counter clockwise
to loosen the bracket arm.
b. Slide the bracket arm up or down to the desired height
(Figure H4). To change the bracket from 90° to 180°, slide
the bracket arm to the top of the bracket and then flip
the arm to the right (Figure H5).
c. Turn the adjustment knob (Figure H3) clockwise to lock
the bracket arm in place.
3. Use the bracket's clamp (Figure H6) to hold the laser in place
on a stud, ceiling grid, or pole.
a. If necessary, rotate the clamp so it is positioned at the
correct angle for attaching to the object. While holding
the bracket arm with one hand, use your other hand to
turn the clamp (Figure H7).
b. Position the bracket's clamp around the stud, ceiling grid,
or pole.
c. Turn the clamp knob (Figure H8) clockwise until the
clamp is tight around the object and the bracket is held
in place.
Using the Laser with Other Accessories

WARNING: Since accessories other than those offered by
STANLEY have not been tested with this laser, use of such
accessories with this laser could be hazardous.
Only use STANLEY® accessories that are recommended for use
with this model. Accessories that may be suitable for one laser
may create a risk of injury when used with another laser.
The laser is equipped with a 1/4-20 female thread on the
bottom, side, and back (Figure C) to accommodate current or
future STANLEY® accessories.
Other recommended accessories for use with this laser are
available at extra cost from your local dealer or authorized
service center. If you need assistance locating any accessory,
please contact your nearest STANLEY service center or visit our
website: http:// www.sTAnlEY.com.
10

Maintenance

When the laser is not in use, clean the exterior parts with a
damp cloth, wipe the laser with a soft dry cloth to make sure
it is dry, and then store the laser in the kit box provided.
Although the laser exterior is solvent resistant, NEVER use
solvents to clean the laser.
Do not store the laser at temperatures below -5 ˚F (-20 ˚C)
or above 140 ˚F (60 ˚C).
To maintain the accuracy of your work, check the laser often
to make sure it is properly calibrated.
Calibration checks and other maintenance repairs may be
performed by STANLEY service centers.

Troubleshooting

The Laser Does Not Turn On
Check the AA batteries to make sure:
Each battery is installed correctly, according to (+) and
-
(–) listed inside the battery compartment.
The battery contacts are clean and free of rust
-
or corrosion.
The batteries are new, high-quality, name brand
-
batteries to reduce the chance of battery leakage.
Make sure the AA batteries are in proper working condition.
If in doubt, try installing new batteries.
When using rechargeable batteries, make sure the batteries
are fully charged.
Be sure to keep the laser dry.
If the laser unit is heated above 120 ˚F (50 ˚C), the unit will
not turn ON. If the laser has been stored in extremely hot
temperatures, allow it to cool. The laser level will not be
damaged by using the Power/ Transport Lock switch before
cooling to its proper operating temperature.
The Laser Beams Flash
When in self‑leveling mode, the lasers are designed to self-
level up to an average of 4° in all directions. If the laser is tilted
so much that the internal mechanism cannot level itself (or the
laser is not level when in manual mode), the laser beams will
flash indicating that the tilt range has been exceeded.
THE FLASHING BEAMS CREATED BY THE LASER ARE NOT LEVEL
OR PLUMB AND SHOULD NOT BE USED FOR DETERMINING OR
MARKING LEVEL OR PLUMB. Try repositioning the laser on a
more level surface.
Laser Beams Will Not Stop Moving
The laser is a precision instrument. Therefore, if it is not
positioned on a stable (and motionless) surface, the laser will
continue to try to find level. If the beam will not stop moving,
try placing the laser on a more stable surface. Also, try to make
sure that the surface is relatively flat and level, so that the laser
is stable.

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