Bosch GOL Professional 20 D Manual Original página 12

12 | English
a
2
A a – d = b
1 m
2
Set up the measuring tool approx. 1 m away from levelling
rod A. After aligning and focusing the measuring tool, read
off the height a at levelling rod A.
2
Subtract the previously calculated value d from the meas-
ured height a in order to obtain the set value for the height
2
b at levelling rod B.
2
Measure the height b at levelling rod B. If the measured
2
value deviates by more than 6 mm (GOL 20 D/G), 3 mm
(GOL 26 D/G) or 2 mm (GOL 32 D/G) from the calculated
set value, the crosshairs must be readjusted.
Example:
a = 1.724 m
2
d = 0.248 m
a – d = 1.724 m – 0.248 m = 1.476 m
2
GOL 20 D/G: When measuring, the height b
1.476 m ± 6 mm.
GOL 26 D/G: When measuring, the height b
1.476 m ± 3 mm.
GOL 32 D/G: When measuring, the height b
1.476 m ± 2 mm.
Readjusting the Crosshairs
(18)
Unscrew the eyepiece cover (4). Using the adjusting
pin (18), turn the adjusting screw (5) clockwise or anticlock-
wise, until the calculated set value for the height b
reached when measuring on levelling rod B.
Screw the eyepiece cover (4) back on.
Example:
When measuring b , the value 1.476 m must be set.
2
Check the crosshairs again. Repeat the adjustment proced-
ure if necessary or contact Bosch customer service.
1 609 92A 8V7 | (05.07.2023)
Maintenance and Service
Maintenance and Cleaning
b
Store and transport the measuring tool only in the supplied
2
case.
Keep the measuring tool clean at all times.
d
Never immerse the measuring tool in water or other liquids.
Wipe off any dirt using a damp, soft cloth. Do not use any de-
B
tergents or solvents.
2
Handle the lenses with particular care. Remove dust only
with a soft brush. Do not touch the lenses with your fingers.
Before storing, allow the measuring tool and the case to dry
completely. In the case, there is a bag containing desiccant,
which binds residual moisture. Replace the desiccant bag
regularly.
If the measuring tool needs to be repaired, send it off in the
case.
After-Sales Service and Application Service
Our after-sales service responds to your questions concern-
ing 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
must be
2
with any questions about our products and their accessor-
ies.
must be
2
In all correspondence and spare parts orders, please always
must be include the 10‑digit article number given on the nameplate
2
of the product.
Great Britain
Robert Bosch Ltd. (B.S.C.)
P.O. Box 98
(5)
Broadwater Park
North Orbital Road
Denham Uxbridge
UB 9 5HJ
At www.bosch-pt.co.uk you can order spare parts or arrange
the collection of a product in need of servicing or repair.
Tel. Service: (0344) 7360109
E-Mail: boschservicecentre@bosch.com
You can find further service addresses at:
www.bosch-pt.com/serviceaddresses
Disposal
is
2
Measuring tools, accessories and packaging should be re-
cycled in an environmentally friendly manner.
Only for EU countries:
According to the Directive 2012/19/EU on waste electrical
and electronic equipment and its transposition into national
law, measuring tools that are no longer usable, and, accord-
ing to the Directive 2006/66/EC, defective or drained bat-
teries must be collected separately and disposed of in an en-
vironmentally correct manner.
If disposed incorrectly, waste electrical and electronic
equipment may have harmful effects on the environment and
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