Bosch GBH 2-21 Professional Manual Original página 14

14 | English
(5) Locking sleeve
(6) Rotational direction switch
(7) Lock-on button for on/off switch
(8) On/off switch
(9) Release button for impact/mode selector switch
(10) Impact/mode selector switch
(11) Button for depth stop adjustment
(12) Auxiliary handle (insulated gripping surface)
(13) Depth stop
(14) Handle (insulated gripping surface)
(15) Securing screw for keyed chuck
A)
(16) Keyed chuck
(17) SDS-plus shank for drill chuck
(18) Front sleeve of the keyless chuck
(19) Rear sleeve of the keyless chuck
(20) 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.
Technical Data
Rotary hammer
Article number
Rated power input
Impact rate
Impact energy per stroke ac-
cording to EPTA-Proced-
ure 05:2016
No-load speed
Tool holder
Max. drilling diameter
A)
– Concrete
– Steel
– Wood
Weight according to EPTA-
Procedure 01:2014
Protection class
A) optimum performance with drilling diameter 6−12 mm
The specifications apply to a rated voltage [U] of 230 V. These spe-
cifications may vary at different voltages and in country-specific mod-
els.
Noise/Vibration Information
Noise emission values determined according
to EN 60745-2-6.
Typically, the A-weighted noise level of the power tool is:
Sound pressure level 94 dB(A); sound power
level 105 dB(A). Uncertainty K = 3 dB.
Wear hearing protection!
1 609 92A 5SR | (20.08.2020)
Vibration total values a
determined according to EN 60745-2-6:
Hammer drilling into concrete: a
Chiselling: a
The vibration level and noise emission value given in these
instructions have been measured in accordance with a
standardised measuring procedure and may be used to com-
pare power tools. They may also be used for a preliminary
estimation of vibration and noise emissions.
The stated vibration level and noise emission value repres-
ent the main applications of the power tool. However, if the
power tool is used for other applications, with different ap-
A) plication tools or is poorly maintained, the vibration level
and noise emission value may differ. This may significantly
increase the vibration and noise emissions over the total
A)
working period.
To estimate vibration and noise emissions accurately, the
times when the tool is switched off or when it is running but
not actually being used should also be taken into account.
A)
This may significantly reduce vibration and noise emissions
over the total working period.
Implement additional safety measures to protect the oper-
ator from the effects of vibration, such as servicing the
power tool and application tools, keeping their hands warm,
and organising workflows correctly.
GBH 2-21
3 611 BA6 0..
Assembly
W 720
u
-1
min 0–4800
J 2.0
Auxiliary handle
u
-1
min 0–2000
SDS-plus
Swivelling the auxiliary handle (see figure A)
You can swivel the auxiliary handle (12) to any angle for a
safe work posture that minimises fatigue.
mm 21
– Turn the lower gripping end of the auxiliary handle (12)
mm 13
mm 30
kg 2.3
/ II
Setting the drilling depth (see figure B)
You can use the depth stop (13) to set the required drilling
depth X.
– Press the button for depth stop adjustment (11) and in-
– Insert the SDS-plus application tool into the SDS-plus tool
(triax vector sum) and uncertainty K
h
= 15 m/s
h
2
= 12 m/s , K = 1.5 m/s
h
Pull the plug out of the socket before carrying out any
work on the power tool.
Do not operate your power tool without the auxiliary
handle (12).
anticlockwise and swivel the auxiliary handle (12) into
the required position. Then turn the lower gripping end of
the auxiliary handle (12) clockwise to retighten it.
Make sure that the retaining strap of the auxiliary handle
slots into the corresponding groove of the housing.
sert the depth stop into the auxiliary handle (12).
The fluting on the depth stop (13) must face downwards.
holder (3) to the stop. Otherwise, the movability of the
SDS-plus drilling tool can lead to incorrect adjustment of
the drilling depth.
2 2
, K = 1.5 m/s ,
2
,
Bosch Power Tools