Checking The Measuring Tool; Maintenance And Cleaning; After-Sales Service And Advice On Using Products - Bosch GLM 20 Original Instructions Manual

14 | English
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 customer service via your dealer.

Checking the Measuring Tool

You can check the accuracy of the measuring tool as follows:
– Choose a measuring section of approx. 1–10 m in length that is perman-
ently unchanged, the exact length of which is known to you (e.g. room
width, door opening). The measuring section must be indoors, and the
target surface of the measurement must be smooth and reflect well.
– Measure the section ten times in succession.
The deviation of the individual measurements from the mean value must not
exceed ± 1.6 mm over the entire measuring section in favourable condi-
tions. Record the measurements in order to be able to compare the accuracy
at a later date.
Maintenance and Servicing

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 (7), which must be handled with
the same level of care you would give to a pair of glasses or a camera lens.
Send in the measuring tool if it requires repair.

After-sales service and advice on using products

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 ques-
tions 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.
1 609 92A 4JT | (05.09.2018) Bosch Power Tools