Maintenance And Service - Bosch DLE 40 Professional Original Instructions Manual

OBJ_BUCH-811-001.book Page 22 Thursday, July 31, 2008 9:46 AM
22 | English
Cause
The indication "Err." flashes at the top in the
display
Addition/Subtraction of
measured values with dif-
ferent types of unit of
measure
Unreliable measuring result
The target surface does
not reflect correctly (e.g.
water, glass).
The laser beam outlet 18 or
the reception lens 19 are
covered.
Measuring result not plausible
Wrong reference level set
Obstruction in path of
laser beam
The measuring tool monitors the
correct function for each measure-
ment. 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.
2 609 140 583 | (31.7.08)
Accuracy Check of the Measuring Tool
Corrective
The accuracy of the measuring tool can be
Measure
checked as follows:
– Select a permanently unchangeable measuring
section with a length of approx. 3 to 10 metres
Only add/subtract
(10 to 33 feet); its length must be precisely
measured values
known (e.g. the width of a room or a door
with the same type
opening). The measuring distance must be in-
of unit of measure
doors; the target surface for the measurement
must be smooth and reflect well.
– Measure the distance 10 times after another.
Cover off the
The measuring error must not amount to more
target surface
than a maximum of ± 2.0 mm ( ± 1/8 in). Keep a
record of the measurements in order to compare
Make sure that the
the accuracy at a later time.
laser beam outlet
18 or the recep-
tion lens 19 are

Maintenance and Service

unobstructed
Maintenance and Cleaning
Select reference
Store and transport the measuring tool only in
level that corre-
the supplied protective case.
sponds to meas-
urement Keep the measuring tool clean at all times.
Do not immerse the measuring tool into water or
Laser point must
other fluids.
be completely on
target surface.
Wipe off debris using a moist and soft cloth.
Do not use any cleaning agents or solvents.
Maintain the reception lens 19 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 authorized
after-sales service centre for Bosch power tools.
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 case 24.
Bosch Power Tools