– Slide the slider (10) on the power tool back completely.
– Place the application tool (22) into the tool holder (2)
and turn it slowly.
– Once a small protrusion (setting disc (23)) in the clutch
can be seen through the opening of the housing, insert
the adjustment tool (22) into this protrusion and turn it.
Turning clockwise will result in a higher torque; turning anti-
clockwise will result in a lower torque.
– Remove the adjustment tool (22). Slide the slider (10) to
the front again to protect the clutch from contamination.
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
u
power range, the shut-off clutch will not be triggered.
Marking the torque setting
To label individually set torques, you can replace the mark-
ing ring (4) with a marking ring of a different colour.
Press the marking ring (4) with a thin screwdriver blade, a
spatula or similar implement.
Always use the power tool with a marking ring to be certain
that the housing is protected against dust and dirt.
Screwdriving indicator (green/red LED)
The shut-off clutch is triggered upon reaching the preset
torque. The LED indicator (6) lights up green.
If the preset torque has not been reached, the LED indicator
(6) lights up red and the tool emits a sound. The screw must
be driven in again.
Repeat protection on electric straight screwdrivers with
lever start
If the shut-off clutch is triggered while driving a screw, the
motor will switch off. You will need to wait 0.3 seconds be-
fore you can switch the tool on again. This prevents you from
accidentally retightening screws that are already firmly in
place.
Repeat protection on electric straight screwdrivers with
push start
These power tools do not have repeat protection and can be
switched on again immediately after automatic switch-off.
Maintenance and Service
Maintenance and Cleaning
Disconnect the PUC-EXACT power supply unit from
u
the mains before carrying out any cleaning. This avoids
the risk of electric shock. Simply switching off the power
supply unit does not guarantee sufficient protection.
In order to avoid safety hazards, if the power supply cord
needs to be replaced, this must be done by Bosch or by an
after-sales service centre that is authorised to repair Bosch
power tools.
Bosch Power Tools
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.
– After driving 100,000 screws, oil the moving parts of the
shut-off clutch with a couple of drops of SAE 10/SAE 20
motor oil. Lubricate the sliding and rolling parts with Mo-
lykote grease. Use this occasion to check the clutch for
wear to ensure that accuracy and reproducibility have not
been affected. You will need to reset the clutch torque
once you have done this.
Have maintenance and repair work performed exclus-
u
ively by a qualified specialist. This will ensure that the
safety of the power tool is maintained.
An authorised Bosch after-sales service point will handle this
work quickly and reliably.
Dispose of lubricants and cleaning products in an en-
u
vironmentally friendly manner, taking legal regula-
tions into account.
Accessories
You can obtain PUC-EXACT series power supply units from
your dealer.
Information about the complete quality accessory range can
be found online at www.bosch-pt.com and
www.boschproductiontools.com or obtained from your
dealer.
After-Sales Service and Application Service
Our after-sales service responds to your questions concern-
ing maintenance and repair of your product as well as spare
parts. You can find explosion drawings and information on
spare parts at: www.bosch-pt.com
The Bosch product use advice team will be happy to help you
with any questions about our products and their accessor-
ies.
In all correspondence and spare parts orders, please always
include the 10‑digit article number given on the nameplate
of the product.
Malaysia
Robert Bosch Sdn. Bhd.(220975-V) PT/SMY
No. 8A, Jalan 13/6
46200 Petaling Jaya
Selangor
Tel.: (03) 79663194
Toll-Free: 1800 880188
Fax: (03) 79583838
www.bosch-pt.com.my
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1 609 92A 6L4 | (18.05.2021)
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