Bosch GRL 400 H Professional Manual Original página 21

OBJ_BUCH-1179-001.book Page 21 Thursday, August 5, 2010 10:04 AM
Operation with Battery Pack
Charge the battery pack 7 before using for the
first time. The battery pack can only be charged
with the battery charger 15 intended for it.
Observe the mains voltage! The voltage of
the power supply must correspond with the
data given on the nameplate of the battery
charger. Battery chargers marked with 230 V
can also be operated with 220 V.
Insert the appropriate mains plug 16 for your
mains supply into the battery charger 15 and al-
low it to engage.
Insert the charge plug 17 of the battery charger
into the socket connector 11 of the battery
pack. Connect the battery charger to the mains
supply. Charging the empty battery pack takes
approx. 14 h. The battery charger and the bat-
tery pack are protected against overcharging.
A battery that is new or has not been used for a
longer period does not develop its full capacity
until after approx. 5 charging/discharging cycles.
Do not charge the battery pack 7 each time after
using, otherwise its capacity will be reduced.
Charge the battery pack only when the charge-
control indicator 6 flashes or lights up continu-
ously.
A considerably reduced operating period after
charging indicates that the battery pack is used
up and must be replaced.
If the battery pack is empty, the measuring tool
can also be operated off of the battery charger
15 when connected to a power supply. Switch
the measuring tool off, charge the battery pack
for approx. 10 min and then switch the measur-
ing tool on again with the battery charger con-
nected.
To change the battery pack 7, turn the locking
knob 10 to position and pull out the battery
pack 7.
Insert a new battery pack and turn the locking
knob 10 to the position.
Remove the battery pack from the measur-
ing tool when not using it for longer peri-
ods. When storing for longer periods, the re-
chargeable batteries can corrode and
discharge themselves.
Bosch Power Tools
Charge-control Indicator
When the charge-control indicator 6 flashes red
for the first time, the measuring tool can still be
operated for approx. 2 h.
When the charge-control indicator 6 lights up
red continuously, measurements are no longer
possible. The measuring tool switches off auto-
matically after 1 minute.
Operation
Starting Operation of the Rotational
Laser Level
Protect the measuring tool against mois-
ture and direct sun light.
Do not subject the measuring tool to ex-
treme temperatures or variations in tem-
perature. As an example, do not leave it in
vehicles for longer periods. In case of large
variations in temperature, allow the measur-
ing tool to adjust to the ambient temperature
before putting it into operation. In case of ex-
treme temperatures or variations in tempera-
ture, the accuracy of the measuring tool can
be impaired.
Avoid heavy impact to or dropping down of
the measuring tool. After severe exterior ef-
fects to the measuring tool, it is recommend-
ed to carry out an accuracy check (see "Lev-
elling Accuracy of the Rotational Laser
Level", page 23) each time before continuing
to work.
Setting Up the Measuring Tool
Position the measuring tool on a
firm surface or mount it to a tri-
pod 18.
Due to the high levelling accuracy, the measur-
ing tool reacts sensitively to ground vibrations
and position changes. Therefore, pay attention
that the position of the measuring tool is stable
in order to avoid operational interruptions due
to re-levelling.
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2 610 A13 330 | (5.8.10)