Bosch Professional GBH 3-28 DRE Notice Originale page 15

Safety instructions when using long drill bits with rotary
hammers
Always start drilling at low speed and with the bit tip
u
in contact with the workpiece. At higher speeds, the bit
is likely to bend if allowed to rotate freely without contact-
ing the workpiece, resulting in personal injury.
Apply pressure only in direct line with the bit and do
u
not apply excessive pressure. Bits can bend, causing
breakage or loss of control, resulting in personal injury.
Additional safety information
Use suitable detectors to determine if utility lines are
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hidden in the work area or call the local utility com-
pany 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 dam-
age or may cause an electric shock.
Always wait until the power tool has come to a com-
u
plete stop before placing it down. The application tool
can jam and cause you to lose control of the power tool.
Secure the workpiece. A workpiece clamped with
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clamping devices or in a vice is held more secure than by
hand.
Products sold in GB only:
Your product is fitted with an BS 1363/A approved electric
plug with internal fuse (ASTA approved to BS 1362).
If the plug is not suitable for your socket outlets, it should be
cut off and an appropriate plug fitted in its place by an au-
thorised customer service agent. The replacement plug
should have the same fuse rating as the original plug.
The severed plug must be disposed of to avoid a possible
shock hazard and should never be inserted into a mains
socket elsewhere.
Do not touch any application tools or adjacent housing
u
components shortly after operation. These can become
very hot during operation and cause burns.
The application tool may jam during drilling. Make
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sure you have a stable footing and hold the power tool
firmly with both hands. Otherwise you could lose con-
trol of the power tool.
Take care when carrying out demolition work using
u
the chisel. Falling fragments of the demolition material
could injure you or any bystanders.
Hold the power tool firmly with both hands and make
u
sure you have a stable footing. The power tool can be
more securely guided with both hands.
Product Description and
Specifications
Read all the safety and general instructions.
Failure to observe the safety and general in-
structions may result in electric shock, fire
and/or serious injury.
Bosch Power Tools
Please observe the illustrations at the beginning of this oper-
ating manual.
Intended Use
The power tool is intended for hammer drilling in concrete,
brick and stone, as well as for light chiselling work. It is also
suitable for drilling without impact in wood, metal, ceramic
and plastic. Power tools with electronic control and right/left
rotation are also suitable for screwdriving.
Product Features
The numbering of the product features refers to the diagram
of the power tool on the graphics page.
(1) Keyless quick-change chuck (GBH 3-28 DFR,
GBH 3000)
(2) SDS plus quick-change chuck (GBH 3-28 DFR,
GBH 3000)
(3) SDS plus tool holder
Dust protection cap
(4)
(5) Locking sleeve
(6) Locking ring for quick-change chuck
(GBH 3-28 DFR, GBH 3000)
(7) On/off switch
(8) Release button for impact/mode selector switch
(9) Impact/mode selector switch
(10) Button for depth stop adjustment
(11) Depth stop
(12) Auxiliary handle (insulated gripping surface)
(13) Rotational direction switch
(14) Handle (insulated gripping surface)
(15) Securing screw for keyed chuck
a)
(16) Keyed chuck
(17) SDS plus shank for drill chuck
(18) Drill chuck holder (GBH 3-28 DFR, GBH 3000)
(19) Identification grooves
(20) Front sleeve of the keyless quick-change chuck
(GBH 3-28 DFR, GBH 3000)
(21) Retaining ring of the keyless quick-change chuck
(GBH 3-28 DFR, GBH 3000)
(22) GDE 16 Plus dust extraction system
(23) Universal holder with SDS plus shank
a) Accessories shown or described are not included with the
product as standard. You can find the complete selection of
accessories in our accessories range.
English | 15
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1 609 92A 80Z | (04.07.2022)