Bosch Professional GBH 2-28 DV Manual Original página 10

OBJ_BUCH-1232-005.book Page 10 Thursday, November 28, 2013 11:30 AM
10 | English
 GBH 2-28 DFV: Only use quick change chucks with 3
identification grooves (standard delivery scope) or 2
identification grooves (accessory/spare part) – see
figure 1, page 176.
– The quick change chuck is automatically locked. Check
the locking effect by pulling the quick change chuck.
 Inserting SDS-plus Drilling Tools: Check the latching by
pulling the tool.
 Replace a damaged dust protection cap immediately.
The dust protection cap largely prevents the penetration of
drilling dust into the tool holder during operation. When in-
serting the tool, pay attention that the dust protection cap
is not damaged.
 Dusts from materials such as lead-containing coatings,
some wood types, minerals and metal can be harmful to
one's health and cause allergic reactions, lead to res-
piratory infections and/or cancer. Materials containing
asbestos may only be worked by specialists.
– As far as possible, use a dust extraction system suita-
ble for the material.
– Provide for good ventilation of the working place.
– It is recommended to wear a P2 filter-class respirator.
Observe the relevant regulations in your country for the
materials to be worked.
 Prevent dust accumulation at the workplace. Dusts can
easily ignite.
 If the application tool should become blocked, switch
the machine off. Loosen the application tool.
 Before switching on the power tool, make sure that the
application tool moves freely. When switching on with a
blocked drilling tool, high torque reaction can occur.
 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.
Symbols
The following symbols are important for reading and under-
standing the operating instructions. Please take note of the
symbols and their meaning. The correct interpretation of the
symbols will help you to use the machine in a better and safer
manner.
Symbol Meaning
GBH 2-28 DV/
GBH 2-28 DFV: Rotary Hammer
Grey-marked area: Handle
(insulated gripping surface)
Article number
Read all safety warnings and all
instructions
1 619 92A 06P | (28.11.13)
Symbol Meaning
Before any work on the machine itself,
pull the mains plug from the socket out-
let
Wear protective gloves
Always wear ear protection.
Wear safety glasses/goggles
Keyless drill chuck
Movement direction
Reaction direction
Prohibited action
Permitted action
Next step of action
Right/left rotation
Drilling without impact
Hammer Drilling
Chiselling
Screwdriving
Vario-Lock
Switching On
Switching Off
On/Off switch lock-on
Releasing the On/Off switch
Bosch Power Tools