Bosch Professional GLM 40 Original Instructions Manual page 17

Cause
Target surface reflection not distinct (e.g.
water, glass).
Laser beam output (12) and/or reception
lens (11) are covered.
Obstruction in the path of the laser beam
The indicator remains unchanged or the measuring tool reacts unexpectedly when
a button is pressed
Software error
The measuring tool monitors for correct operation in every measurement. If a defect is
detected, all indicators on the display will flash. In this case, or if you are unable to rectify
an error using the corrective measures above, send the measuring tool to Bosch cus-
tomer service via your dealer.
Maintenance and Service
Maintenance and Cleaning
Keep the measuring tool clean at all times.
Never immerse the measuring tool in water or other liquids.
Wipe off any dirt using a damp, soft cloth. Do not use any detergents or solvents.
Take particular care of the reception lens (11), which must be handled with the same
level of care you would give to a pair of glasses or a camera lens.
If you discover a fault or require a repair, send the measuring tool to an authorised Bosch
after-sales service agent.
After-Sales Service and Application Service
Our after-sales service responds to your questions concerning maintenance and repair of
your product as well as spare parts. You can find explosion drawings and information on
spare parts at: www.bosch-pt.com
The Bosch product use advice team will be happy to help you with any questions about
our products and their accessories.
In all correspondence and spare parts orders, please always include the 10‑digit article
number given on the nameplate of the product.
Bosch Power Tools
Corrective measures
Cover the target surface
Keep the laser beam output (12) and/or re-
ception lens (11) clear
The laser point must be fully on the target
surface.
Remove the batteries, reinsert them and
restart the measuring tool.
1 609 92A 5DY | (02.07.2020)
English | 17