For Your Safety; Changing The Tool - Bosch GBH 4 DFE PROFESSIONAL Operating Instructions Manual

For Your Safety

Read all instructions. Failure to
follow all instructions listed below
may result in electric shock, fire
and/or serious injury.
SAVE THESE INSTRUCTIONS.
When working with the machine, always
hold it firmly with both hands and provide
for a secure stance. The power tool is guided
more secure with both hands.
Secure the workpiece. A workpiece clamped
with clamping devices or in a vice is held more
securely than by hand.
Do not work materials containing asbes-
tos. Asbestos is considered carcinogenic.
Always wait until the machine has come to
a complete stop before placing it down. The
tool insert can jam and lead to loss of control
over the power tool.
Do not use a machine with a damaged
mains cable. Do not touch the damaged ca-
ble and pull the mains plug when the cable
is damaged while working. Damaged cables
increase the risk of an electric shock.
Connect machines that are used in the
open via a residual current device (RCD).
Wear hearing protection. Exposure to noise
can cause hearing loss.
Always use the auxiliary handle supplied
with the machine. Loss of control can cause
personal injury.
Use suitable detectors to determine if util-
ity lines are hidden in the work area or call
the local utility company for assistance.
Contact with electric lines can lead to fire and
electric shock. Damaging a gas line can lead
to explosion. Penetrating a water line causes
property damage or may cause an electric
shock.
Hold the power tool only by the insulated
handles, when performing an operation
where the tool insert can run into hidden
wiring or its own mains cable. Contact with
a "live" wire can make metal parts of the power
tool "live" and lead to an electric shock.
13 • 1 619 929 679 • TMS • 03.08.04

Changing the Tool

Before any work on the machine itself, pull the
mains plug.
With the SDS-plus tool holder, simpler and easier
tool changing is possible without additional aids.
Grease the shank end of the tool regu-
larly.
The dust protection cap 1 largely prevents the
entry of drilling dust during operation. When in-
serting the tool, take care that the dust protection
cap 1 is not damaged.
A damaged dust protection cap should be
changed immediately. We recommend having
this carried out by an after-sales service.
As a requirement of the system, the
SDS-plus tool must rotate freely. At no-load
speed, this leads to a certain amount of ra-
dial run-out.
This does not affect the accuracy of the drill
hole, as the bit is automatically centred dur-
ing drilling.
Inserting (see figure
Clean and grease the shank end of the tool.
Insert the tool in a twisting manner into the tool
holder until it locks. Check if it has locked by pull-
ing the tool.
Removing (see figure
Push back the locking sleeve 2 of the tool holder
and remove the tool.
English - 2
)
A
)
B