Starting Operation; Working Advice; Maintenance And Service; Maintenance And Cleaning - Bosch GWB 7,2 V Professional Manual Original

OBJ_BUCH-498-001.book Page 17 Wednesday, September 12, 2007 3:55 PM
Operation

Starting Operation

Inserting the Battery
Use only original Bosch slide-in batteries
with the voltage given on the type plate of
your machine. The use of other batteries can
lead to injuries and danger of fire.
Set the rotational direction switch 4 to the centre
position in order to avoid unintentional starting.
Place the closing cap 2 onto the charged battery
1 with the straight edge facing upward. Insert the
battery 1 into the machine with the contacts
pointing ahead until the closing cap 2 engages.
Note: When the battery is inserted incorrectly,
the closing cap 2 will not engage.
Reversing the Rotational Direction
Actuate the rotational direction switch 4 on-
ly when the machine is at a standstill.
The rotational direction switch 4 is used to re-
verse the rotational direction of the machine.
However, this is not possible with the On/Off
switch 3 actuated.
Right Rotation: For drilling and driving in screws,
push the rotational direction switch 4 left to the
stop.
Left Rotation: For loosening and unscrewing
screws and nuts, press the rotational direction
switch 4 through to the right stop.
Switching On and Off
To start the machine, press the On/Off switch 3
and keep it depressed.
To switch off the machine, release the On/Off
switch 3.
Adjusting the Speed (GWB 7,2 VE)
The speed of the switched on power tool can be
variably adjusted, depending on how far the
On/Off switch 3 is pressed.
Light pressure on the On/Off switch 3 results in
a low rotational speed. Further pressure on the
switch results in an increase in speed.
Bosch Power Tools
Run-on Brake
When the On/Off switch 3 is released, the chuck
brakes to a stop, thus preventing the run-on of
the tool.
When driving in screws, wait until the screw is
screwed in flush with the material and then release
the On/Off switch 3. By doing so, the head of the
screw does not penetrate into the material.

Working Advice

Apply the power tool to the screw/nut only
when it is switched off. Rotating tool inserts
can slip off.
Tips
After longer periods of working at low speed, allow
the machine to cool down by running it for approx.
3 minutes at maximum speed with no load.
For drilling in metal, use only perfectly sharp-
ened HSS drill bits (HSS=high-speed steel). The
appropriate quality is guaranteed by the Bosch
accessories program.
Before screwing larger, longer screws into hard
materials, it is advisable to predrill a pilot hole
with the core diameter of the thread to approx.
2
/ of the screw length.
3

Maintenance and Service

Maintenance and Cleaning

Before any work on the machine (e. g., main-
tenance, tool change, etc.) as well as during
transport and storage, set the rotational di-
rection switch to the centre position. Unin-
tentional actuation of the On/Off switch can
lead to injuries.
For safe and proper working, always keep
the machine and ventilation slots clean.
If the machine should fail despite the care taken
in manufacturing and testing procedures, repair
should be carried out by an after-sales service
centre for Bosch power tools.
In all correspondence and spare parts order,
please always include the 10-digit article number
given on the type plate of the machine.
English | 17
1 609 929 M57 | (12.9.07)