Craftsman CMHT77629 User Manual page 14

Maintenance
E
• 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 CRAFTSMAN 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 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.
14
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.
The 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.
Service and Repairs
Note: Disassembling the laser level will void all
warranties on the product.
To assure product SAFETY and RELIABILITY, repairs,
maintenance and adjustment should be performed by
authorized service centers. Service or maintenance
performed by unqualified personnel may result in a risk
of injury. To locate your nearest CRAFTSMAN service
center, go to www.CRAFTSMAN.com.
Warranty
Go to www.CRAFTSMAN.com for the latest warranty
information.