Manual Bosch GBH 18V-28 DC (page 18 of 307) (All languages)

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18 | English

specified in the instructions. Charging improperly or at

temperatures outside the specified range may damage

the battery and increase the risk of fire.

Service

uHave your power tool serviced by a qualified repair

person using only identical replacement parts. This

will ensure that the safety of the power tool is maintained.

uNever service damaged battery packs. Service of bat-

tery packs should only be performed by the manufacturer

or authorized service providers.

Hammer Safety Warnings

Safety instructions for all operations

uWear ear protectors. Exposure to noise can cause hear-

ing loss.

uUse auxiliary handle(s), if supplied with the tool. Loss

of control can cause personal injury.

uHold the power tool by insulated gripping surfaces,

when performing an operation where the cutting ac-

cessory or fasteners may contact hidden wiring . Cut-

ting accessory or fasteners contacting a "live" wire may

make exposed metal parts of the power tool "live" and

could give the operator an electric shock.

Safety instructions when using long drill bits with rotary

hammers

uAlways start drilling at low speed and with the bit tip

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.

uApply pressure only in direct line with the bit and do

not apply excessive pressure. Bits can bend, causing

breakage or loss of control, resulting in personal injury.

Additional safety information

uUse suitable detectors to determine if there are hid-

den supply lines or contact the local utility company

for assistance. Contact with electric cables can cause

fire and electric shock. Damaging gas lines can lead to ex-

plosion. Breaking water pipes causes property damage.

uAlways wait until the power tool has come to a com-

plete stop before placing it down. The application tool

can jam and cause you to lose control of the power tool.

uSecure the workpiece. A workpiece clamped with

clamping devices or in a vice is held more secure than by

hand.

uIn case of damage and improper use of the battery, va-

pours may be emitted. The battery can set alight or ex-

plode. Ensure the area is well ventilated and seek medical

attention should you experience any adverse effects. The

vapours may irritate the respiratory system.

uDo not open the battery. There is a risk of short-circuit-

ing.

uThe battery can be damaged by pointed objects such

as nails or screwdrivers or by force applied externally.

An internal short circuit may occur, causing the battery to

burn, smoke, explode or overheat.

uOnly use the battery with products from the manufac-

turer. This is the only way in which you can protect the

battery against dangerous overload.

Protect the battery against heat, e.g. against

continuous intense sunlight, fire, dirt, water

and moisture. There is a risk of explosion and

short-circuiting.

uDo not touch any application tools or adjacent housing

components shortly after operation. These can become

very hot during operation and cause burns.

uThe application tool may jam during drilling. Make

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.

uTake care when carrying out demolition work using

the chisel. Falling fragments of the demolition material

could injure you or any bystanders.

uCaution! When using the power tool with Bluetooth®, a

fault may occur in other devices and systems, aero-

planes and medical devices (e.g. pacemakers, hearing

aids). Also, damage to people and animals in the im-

mediate vicinity cannot be completely excluded. Do

not use the power tool with Bluetooth® in the vicinity of

medical devices, petrol stations, chemical plants,

areas with a potentially explosive atmosphere or in

blasting areas. Do not use the power tool with

Bluetooth® in aircraft. Avoid using the product near

your body for extended periods.

The Bluetooth® word mark and logos are registered trade-

marks owned by Bluetooth SIG, Inc. and any use of such

marks by Robert Bosch Power Tools GmbH is under li-

cense.

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.

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 and medium difficulty

chiselling work. It is also suitable for drilling without impact

in wood, metal, ceramic and plastic. Power tools with elec-

tronic control and right/left rotation are also suitable for

screwdriving.

With the Bluetooth® Low Energy Module GCY 42 inserted,

power tool data and settings can be transferred between the

power tool and a mobile device by means of Bluetooth® wire-

less technology.

1 609 92A 80W | (05.07.2022) Bosch Power Tools

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Bosch GBH 18V-28 DC Manual

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