Stanley STHT77502-1, Original Instructions Manual

10

English

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.

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.

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.

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.

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.