Functional Descriptions; Brake Operation - Bosch GWS18V-13C Operating/Safety Instructions Manual

Electronic Clutch:
The electronics in the power tool detects
situations where the wheel or accessory may
be at risk to bind. The electronics prevents
further rotation of the drive spindle by
switching the power tool off (it does not
prevent kickback). To resume operation, turn
on/off switch to the off position, then restart
tool.
Constant Response Circuitry:
Helps maintain near constant RPMs between
no-load and load conditions.
Soft Start:
Helps reduce stress on the motor that occurs
from a high torque start. Helps bring
accessory smoothly up to speed.
Automatic Restart Protection:
Helps prevent accidental startups after power
has been interrupted, e.g. the tool was
complete stop before setting the tool
down. The brake action of this grinder is
not intended as a safety feature. Using the
appropriate guard when operating the
grinder is your best protection against
unintentional contact with a spinning
accessory. Unintended contact with a
rotating accessory can cause property
damage and\or personal injury.
electric braking action is initiated ONLY by
the release of the trigger switch and in a
tool that has power available. When
electrical power is lost due to a discharged
battery or other causes, the electric brake
will not operate and the motor will
gradually slow down. Unexpected run down
time may cause property damage and/or
personal injury.

Functional Descriptions

Brake Operation

Let the grinder
accessory come to a
Know the charge state of
your battery.
unplugged with the switch locked in the on
position. To resume operation, turn on/off
switch to the off position, then restart the
tool. See the chart under Fig. 1 and Fig. 2 to
find out which grinders are equipped with the
Automatic Restart Protection.
Overload Protection:
Helps protect tool from excessive heat that
may damage motor. If tool stops or slows
during operation, allow motor to cool for 30
seconds by running no-load. If the overload
protection stops the tool repeatedly,
excessive force is causing the tool to
overload. Stop excessive force and readjust
work piece to reduce force applied.
Variable Speed:
Allows the grinders RPM to be adjusted for
greater versatility to match needs of specific
applications.
Your grinder is equipped with an automatic
electric brake which is designed to rapidly
stop the accessory from spinning after you
release the trigger switch. This feature
helps improve jobsite productivity.
Braking starts once the power is turned off.
The brake requires a charged battery to
function. Stopping time will vary depending
on, among other factors, accessory used,
and number of actuations. The electric
brake of your grinder has been designed for
a high degree of reliability, but unexpected
circumstances such as contamination or
The
failure of the motor's components can
cause the brake to not activate. If the tool
operates
consistently stop the accessory, DO NOT
use the grinder and have it serviced by a
Bosch Factory Service Center or Bosch
authorized service facility.
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but the brake does not