Bosch GNB 18V-38 Professional Manual Original página 21

– The material tears or splinters: The substrate is too brittle
and is not suitable. Particles may hit you or other people,
or the nail may completely penetrate the substrate.
– When struck with a hammer, the nail sinks into the sub-
strate: The substrate is too soft and is not suitable; the
nail may fully penetrate the substrate.
– The nail leaves behind a small recess in the substrate: The
substrate is suitable for fastening.
Initiating the Discharging Procedure
– Switch on the power tool.
– Press the unlocking switch (5) to the left to unlock the
trigger (6) (see figure D).
– Ensure that you hold the power tool by the handle (7)
with a firm grip.
– Press the contact element (17) all the way to the sub-
strate.
When the contact element is pressed, the worklight (19)
lights up and illuminates the work area in poor lighting
conditions.
– Afterwards, briefly press the trigger (6) and release it
again. This discharges a nail into the substrate.
– Note: The trigger (6) must be pressed within 2 s after
pressing the contact element (17). Otherwise, the power
tool goes into safe mode and the discharging process
must be restarted.
– For another driving procedure, lift the power tool fully off
the substrate and position it firmly at the next required
location.
– During work breaks and when work is finished, secure the
trigger (6) by pressing the unlocking switch (5) to the
right (see figure D).
Note: Securing prevents triggering if the contact
element (17) is not fully pressed or the trigger (6) has not
been released between discharging procedures.
Working Advice
Remove the battery from the power tool before carry-
u
ing out work on the power tool (e.g. maintenance,
changing tool, etc.). The battery should also be re-
moved for transport and storage. There is risk of injury
from unintentionally pressing the on/off switch.
Before starting work, always check that the safety and actu-
ation devices are functioning correctly and that all screws
and nuts are tightly seated.
If a power tool is defective or not functioning properly, dis-
connect it immediately from the power supply and contact
an authorised Bosch after-sales service centre.
Do not perform any incorrect manipulations on the power
tool. Do not disassemble or block any components of the
power tool. Do not carry out "emergency repairs" with un-
suitable means.
Avoid any tampering and damage to the power tool, e. g.
from:
– Imprinting or engraving,
– Retrofitting measures not approved by the manufacturer,
Bosch Power Tools
– Dropping on or sliding over the floor,
– Using as a hammer,
– Applying any kind of force.
For longer work breaks and after finishing work, switch off
the power tool, remove the battery and empty the magazine
if possible.
Requirements for Discharging Procedures
When fastening, observe the manufacturer's specifications
for the material being fastened, as well as the construction
plans for the systems.
Make sure to check whatever is below or behind your work-
piece. Do not insert nails into walls, ceilings or floors when
persons are behind them. The nails may punch through the
substrate and may cause injury.
The nails must always be discharged into the substrate at a
perpendicular angle.
Do not insert a nail on top of one that has already been inser-
ted. This could cause the nail to deform, the nails could be-
come jammed or the power tool could move in an uncon-
trolled manner.
Check whether the nails have been inserted correctly. For
fastening to be secure, they must sit neither too high nor too
low nor be bent.
If concrete is damaged by failed nails, it must be repaired in
accordance with recognised rules.
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1 609 92A 75W | (10.01.2023)