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• For "Hammering" operating mode: Soft start
is enabled for precise control and positioning
with a variable speed control in the trigger.
In Favorite work preset, the power tool can be
customized via 'Bosch Toolbox' app.
• For "Drilling" operating mode: Ramp-up
speed and maximum RPM can be customized.
The sensitivity of Kickback Control can be
configured.
• For "Hammering" mode: Soft start can be en-
abled/disabled.
Refer to "Using 'Bosch Toolbox' app" chapter for
more information.
Adaptive Speed Control
In "Hammering" operating mode, the
power tool starts at a low idle speed
for better control and precise posi-
tioning. When force is applied to the
workpiece, the speed quickly increases.
Slip Clutch
The tool has an internal pre-set slip clutch. The
output spindle will stop rotating if the accessory
binds and overloads the tool.
Vibration damping
vibration.
Do not use the power tool if the vibration damp-
er (Fig. 1, 5) is damaged.
2610070434 GBH18V-40C 202205.indd 15
page heading
Operation
The integrated vibra-
tion damping function
reduces the generated
-15-
Kickback Control
The rapid shut-off feature enables
better control and improves user's
comfort. The power tool automati-
cally shuts off in case of sudden and
unexpected rotation of the power tool around
the drilling axis (for example jamming of the drill
bit in reinforcing steel or wedging application
tool). To restart the power tool, release the trig-
ger switch and then actuate again.
Kickback Control can activate only when the
power tool is running at maximum operating
speed and can rotate freely around the drill bit
axis.
Tool Tips
For the best penetration rates in concrete, run
the tool with a steady pressure, but do not use
excessive force as this will decrease the efficien-
cy of the tool.
All hammers require a short period of time to
warm up. Depending on the room temperature,
this time may vary from approximately 15 sec-
onds (90°F / 32°C) to 2 minutes (32°F / 0°C). A
new hammer requires a break-in period before
full performance is realized. This period may re-
quire up to 5 hours of operation.
A combination hammer is likely to be the most
expensive portable tool at the construction job.
The long wear and efficient operation of the
Bosch hammers will more than justify the cost
for tools of this type. As earlier pointed out,
sharp accessories as well as clean air vents are
necessary for efficient operation. Establish and
follow a set maintenance program.
6/6/22 8:58 AM
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