Bosch GBH 240 Professional Notice Originale page 15

OBJ_BUCH-2460-003.book Page 15 Monday, April 24, 2017 10:03 AM
Rotary Hammer
Drilling diameter, max.:
– Concrete
– Brickwork (with core bit)
– Steel
– Wood
Weight according to EPTA-Procedure 01:2014
Protection class
The values given are valid for a nominal voltage [U] of 230 V. For different voltages and models for specific countries, these values can vary.
Noise/Vibration Information
Sound emission values determined according to
EN 60745-2-6.
Typically the A-weighted noise levels of the product are:
Sound pressure level 92.5 dB(A); Sound power level
103.5 dB(A). Uncertainty K =3 dB.
Wear hearing protection!
Vibration total values a (triax vector sum) and uncertainty K
h
determined according to EN 60745-2-6:
Hammer drilling into concrete: a
h
2
Chiselling: a =13.9 m/s , K=1.5 m/s
h
The vibration level given in this information sheet has been
measured in accordance with a standardised test given in
EN 60745 and may be used to compare one tool with anoth-
er. It may be used for a preliminary assessment of exposure.
The declared vibration emission level represents the main ap-
plications of the tool. However if the tool is used for different
applications, with different accessories or insertion tools or is
poorly maintained, the vibration emission may differ. This
may significantly increase the exposure level over the total
working period.
An estimation of the level of exposure to vibration should also
take into account the times when the tool is switched off or
when it is running 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 pat-
terns.
Assembly
 Before any work on the machine itself, pull the mains
plug.
Auxiliary Handle
 Operate your machine only with the auxiliary handle
14.
Changing the position of the auxiliary handle
(see figure A)
The auxiliary handle 14 can be set to any position for a secure
and low-fatigue working posture.
– Turn the bottom part of the auxiliary handle 14 in counter-
clockwise direction and swivel the auxiliary handle 14 to
the desired position. Then retighten the bottom part of the
auxiliary handle 14 by turning in clockwise direction.
Bosch Power Tools
mm
mm
mm
mm
Adjusting the Drilling Depth (see figure B)
The required drilling depth X can be set with the depth stop
13.
– Press the button for the depth stop adjustment 12 and
2 2
=13.1 m/s , K=1.5 m/s
2
– Insert the SDS-plus drilling tool to the stop into the SDS-
– Pull out the depth stop until the distance between the tip of
Selecting Drill Chucks and Tools
For hammer drilling and chiselling, SDS-plus tools are re-
quired that are inserted in the SDS-plus drill chuck.
For drilling without impact in wood, metal, ceramic and
plastic as well as for screwdriving, tools without SDS-plus are
used (e.g., drill bits with cylindrical shank). For these tools, a
keyless chuck or a key type drill chuck are required.
GBH 240 F: The SDS-plus quick change chuck 2 can easily be
replaced against the quick change keyless chuck 1 provided.
Changing the Key Type Drill Chuck (GBH 240)
To work with tools without SDS-plus (e.g., drills with cylindri-
cal shank), a suitable drill chuck must be mounted (key type
drill chuck or keyless chuck, accessories).
Mounting the Key Type Drill Chuck (see figure C)
– Screw the SDS-plus adapter shank 18 into a key type drill
Inserting the Key Type Drill Chuck (see figure C)
– Clean the shank end of the adapter shank and apply a light
– Insert the key type drill chuck with the adapter shank into
– Check the locking effect by pulling the key type drill chuck.
GBH 240
24
68
13
30
kg 2.8
/II
Pay attention that the clamping band of the auxiliary
handle is positioned in the groove on the housing as
intended for.
insert the depth stop into the auxiliary handle 14.
The knurled surface of the depth stop 13 must face down-
ward.
plus tool holder 3. Otherwise, the movability of the SDS-
plus drilling tool can lead to incorrect adjustment of the
drilling depth.
the drill bit and the tip of the depth stop corresponds with
the desired drilling depth X.
chuck 17. Secure the key type drill chuck 17 with the
securing screw 16. Please observe that the securing
screw has a left-hand thread.
coat of grease.
the tool holder with a turning motion until it automatically
locks.
English | 15
GBH 240 F
24
68
13
30
2.9
/II
1 609 92A 3SE | (24.4.17)