User manual

English | 19
Bosch Power Tools 1 609 929 T68 | (13.10.09)
The measuring tool monitors the
correct function for each meas-
urement. When a defect is deter-
mined, only the symbol shown
aside flashes in the display. In this
case, or when the above mentioned corrective
measures cannot correct an error, have the
measuring tool checked by an after-sales service
agent for Bosch power tools.
Accuracy Check of the Measuring Tool
The accuracy of the measuring tool can be
checked as follows:
– Select a permanently unchangeable measur-
ing section with a length of approx. 1 to
10 metres (3 to 30 feet); its length must be
precisely known (e.g. the width of a room or a
door opening). The measuring distance must
be indoors; the target surface for the meas-
urement must be smooth and reflect well.
– Measure the distance 10 times after another.
The deviation of the individual measurements
from the mean value must not exceed ±1.5 mm
(± 1/16 in) (max.). Log the measurements, so
that you can compare their accuracy at a later
point of time.
Maintenance and Service
Maintenance and Cleaning
Store and transport the measuring tool only in
the supplied protective pouch.
Keep the measuring tool clean at all times.
Do not immerse the measuring tool in water or
other fluids.
Wipe off debris using a moist and soft cloth. Do
not use any cleaning agents or solvents.
Maintain the reception lens 26 in particular,
with the same care as required for eye glasses
or the lens of a camera.
If the measuring tool should fail despite the care
taken in manufacturing and testing procedures,
repair should be carried out by an authorised af-
ter-sales service centre for Bosch power tools.
Do not open the measuring tool yourself.
In all correspondence and spare parts orders,
please always include the 10-digit article
number given on the type plate of the measuring
tool.
In case of repairs, send in the measuring tool
packed in its protective pouch 28.
After-sales Service and Customer
Assistance
Our after-sales service responds to your ques-
tions concerning maintenance and repair of your
product as well as spare parts. Exploded views
and information on spare parts can also be
found under:
www.bosch-pt.com
Our customer service representatives can an-
swer your questions concerning possible appli-
cations and adjustment of products and acces-
sories.
The indication “ERROR” flashes at the top in
the display
Addition/Subtraction of
measured values with dif-
ferent units of measure
Only add/subtract
measured values
with the same
units of measure
Measuring result not plausible
The target surface does
not reflect correctly
(e.g. water, glass).
Cover off the
target surface
The laser beam outlet 27
or the reception lens 26
are covered.
Make sure that the
laser beam outlet
27 or the recep-
tion lens 26 are
unobstructed
Wrong reference level set Select reference
level that corre-
sponds to meas-
urement
Obstruction in path of
laser beam
Laser point must
be completely on
target surface.
Cause Corrective
Measure
OBJ_BUCH-1044-001.book Page 19 Tuesday, October 13, 2009 9:49 AM