Maintenance And Service; Maintenance And Cleaning - Bosch BT-EXACT series Originalbetriebsanleitung

28 | English
Note: The required setting is dependent on the type of
threaded connector and can be best determined by practical
trials. Check a trial screw application with a torque spanner.
If you set the torque to a value outside the specified
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power range, the shut-off clutch will not be triggered.
LED indicator
Battery charge indicator
If the battery (18) needs to be charged, the
LED indicator (11) flashes green and a sound
is emitted. You can only drive in six to eight
more screws.
If the LED indicator lights up red, there is not enough capa-
city left to drive in another screw or the power tool has over-
loaded. The power tool can no longer be switched on. The
lock-off function remains active until the drained battery has
been removed from the power tool and a charged battery in-
serted.
If you are working with a voltage adapter, the red LED (11)
indicates overloading.
If the LED indicator (11) flashes red, the power tool has
overheated and switched itself off. Wait a short while for the
light to stop flashing before switching the power tool on
again.
A significantly reduced operating time of the power tool after
charging indicates that the battery must be replaced soon.
Dispose of depleted batteries in accordance with legal/coun-
try-specific provisions.
Note: If you are using a voltage adapter and the 4EXACT con-
stant voltage regulator instead of the battery (18), the LED
indicator (11) has no function.
Indicator for screwdriving applications
The shut-off clutch is triggered upon reaching
the preset torque. The LED indicator (9) lights
up green.
If the preset torque has not been reached, the LED indicator
(9) lights up red and the tool emits a sound. The screw must
be driven in again.
Bluetooth® connection indicator
Press the on/off switch (12) to activate the Bluetooth® con-
nection. The red LED indicator (10) will flash while the
screwdriver is searching for a connection.
If the red LED indicator (10) is lit continuously, this indicates
that a Bluetooth® connection has been made. However, the
screwdriver remains locked.
If the screwdriver is released by the EXAConnecT access
point, the LED indicator (10) will switch off.
If the LED indicator (10) only flashes for a short time after
the on/off switch has been pressed, this indicates that the
screwdriver no longer has sufficient power to make a con-
nection.
Repeat protection
If the shut-off clutch is triggered while driving a screw, the
motor will switch off. You will need to wait 0.7 seconds be-
fore you can switch the tool on again. This prevents you from
1 609 92A 4V2 | (13.02.2019)
accidentally retightening screws that are already firmly in
place.
Adjusting the angled screw head
BT-ANGLE EXACT 2 | 3 | 6 | 7 | 8 | 15 | 17 | 23 | 30
You can adjust the angled screw head (3) to a total of eight
different positions.
Hold the power tool with the open-ended spanner (6)
against the spanner flat (5) of the angled head flange.
Never clamp the power tool to the housing shells.
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Loosen the cap nut with the open-ended spanner (4) against
the spanner flat (16). Move the angled screw head (3) in 45°
degree increments into the required position and tighten the
cap nut again with the open-ended spanner (4) against the
spanner flat (16).
While doing this, place the open-ended spanner (6) against
the angled head flange to hold it in place.
Adjusting the LED worklight (see figure J)
BT-ANGLE EXACT 2 | 3 | 6 | 7 | 8 | 15 | 17 | 23 | 30
Press the marking ring (19) with a thin screwdriver blade, a
spatula or similar implement. Slide the spring ring(33) back
onto the housing shell using a pair of spring ring pliers.
The two shell halves of the LED holder (15) that encase the
LED worklight (20) can now be brought into the required po-
sition. Taking care not to damage the cable on the LED work-
light, slide the cable into the cavity provided for it (34) in the
housing shell without allowing it to bend. Encase the LED
worklight (20) in the two housing shells of the LED holder
(15) once again.
Press the spring ring (33) and the marking ring (19) back
into their original position.

Maintenance and Service

Maintenance and Cleaning

Remove the battery from the power tool before carry-
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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.
To ensure safe and efficient operation, always keep
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the power tool and the ventilation slots clean.
Lubricating the power tool
Lubricant:
Special gearbox grease (225 ml)
Article number 3 605 430 009
Molykote grease
Motor oil SAE 10/SAE 20
– Clean the gearbox with a mild solvent after the first 150
operating hours. Follow the solvent manufacturer's in-
structions on use and disposal. Then lubricate the gear-
box with Bosch special gearbox grease. Repeat the clean-
ing process once every 300 operating hours after clean-
ing has been carried out for the first time.
Bosch Power Tools