Battery Charging; Changing The Tool - Bosch GWB 7,2 V Professional Manual Original

OBJ_BUCH-498-001.book Page 16 Wednesday, September 12, 2007 3:55 PM
16 | English
An estimation of the level of exposure to vibra-
tion should also take into account the times
when the tool is switched off or when it is run-
ning but not actually doing the job. This may sig-
nificantly reduce the exposure level over the total
working period.
Identify additional safety measures to protect the
operator from the effects of vibration such as:
maintain the tool and the accessories, keep the
hands warm, organisation of work patterns.
Assembly

Battery Charging

A battery that is new or has not been used for a
longer period does not develop its full capacity
until after approx. 5 charging/discharging cycles.
To remove the battery 1, press the unlocking but-
tons and pull the battery out of the machine to
the rear. Do not exert any force.
The battery is equipped with a NTC temperature
control which allows charging only within a tem-
perature range of between 0 °C and 45 °C. A long
battery service life is achieved in this manner.
A significantly reduced working period after
charging indicates that the battery is used and
must be replaced.
Observe the notes for disposal.

Changing the Tool

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.
Open the key type drill chuck 8 by turning until
the tool can be inserted. Insert the tool.
Insert the chuck key 6 into the corresponding
holes of the key type drill chuck 8 and clamp the
tool uniformly.
1 609 929 M57 | (12.9.07)
Screwdriver Tools
When working with screwdriver bits 5, a univer-
sal bit holder should always be used. Use only
screwdriver bits that fit the screw head.
Replacing the Drill Chuck
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.
Removing the Securing Screw
The key type drill chuck 8 is secured with a secur-
ing screw 7 against unintentional loosening.
Open the drill chuck 8 completely and unscrew
the securing screw 7 by turning in clockwise di-
rection. Please observe that the securing screw
has a left-hand thread.
Removing the Drill Chuck
To remove the key type drill chuck 8, clamp an Al-
len key into the key type drill chuck 8. Place the
machine onto a stable support, e. g. a work-
bench. Hold the machine tightly and loosen the
key type drill chuck 8 by turning the Allen key in
anticlockwise direction. A tightly seated key type
drill chuck is loosened by applying a light blow
onto the long end of the Allen key . Remove the
Allen key from the key type drill chuck and fully
unscrew the drill chuck.
Mounting the Drill Chuck
The key type drill chuck is mounted in reverse or-
der.
Note: After mounting the key type drill chuck,
screw the securing screw 7 in again.
The drill chuck must be tightened with a
tightening torque of approx. 10–20 Nm.
Bosch Power Tools