Bosch GDS Professional 24 Manual Original página 14

14 | English
Guide values for maximum screw tightening torques
Figures given in Nm; calculated from the tensional cross-section; utilisation of the yield point: 90% (with friction coefficient
µ = 0.12). As a control measure, always check the tightening torque with a torque wrench.
total
Property classes Standard screws/bolts
according to DIN
3.6 4.6
267
M8 6.57 8.7
M10 13 17.5
M12 22.6 30
M14 36 48
M16 55 73
M18 75 101
M20 107 143
M22 145 190
M24 185 245
M27 275 365
M30 370 495
Example for determining the impact duration (GDS 30)
Bolt M 24 with property class 8.8 = bolt tightening torque of
650 Nm
From the diagram for GDS 30, 650 Nm results in an impact
duration of 0.8 seconds (see "Diagram for GDS 30",
page 13).
Tips
Torsion bars have a shank with a precisely calibrated, re-
duced diameter. This means that they limit the torque. A tor-
sion bar is slotted between the impact driver and the bit.
As a rule of thumb for application, the following applies:
Core diameter of the screw = effective diameter of the tor-
sion bar. The impact duration is to be determined through
test screw applications.
A suspension eye (1) is attached to the power tool's centre
of gravity so it can be hung up.
You can use an elbow (accessory) to change the position of
the handle.
At sub-zero temperatures, the power tool should first be op-
erated at no load for approx. three minutes to improve the
lubrication performance in the power tool.
Maintenance and Service
Maintenance and Cleaning
Pull the plug out of the socket before carrying out any
u
work on the power tool.
To ensure safe and efficient operation, always keep
u
the power tool and the ventilation slots clean.
In order to avoid safety hazards, if the power supply cord
needs to be replaced, this must be done by Bosch or by an
after-sales service centre that is authorised to repair Bosch
power tools.
1 609 92A 7YG | (18.07.2023)
5.6 4.8 6.6 5.8
11 11.6 13.1 14.6
22 23 26 29
37.6 40 45 50
60 65 72 79
92 98 110 122
126 135 151 168
178 190 214 238
240 255 290 320
310 325 370 410
455 480 445 605
615 650 740 820
After-Sales Service and Application Service
Our after-sales service responds to your questions concern-
ing maintenance and repair of your product as well as spare
parts. You can find explosion drawings and information on
spare parts at: www.bosch-pt.com
The Bosch product use advice team will be happy to help you
with any questions about our products and their accessor-
ies.
In all correspondence and spare parts orders, please always
include the 10‑digit article number given on the nameplate
of the product.
Great Britain
Robert Bosch Ltd. (B.S.C.)
P.O. Box 98
Broadwater Park
North Orbital Road
Denham Uxbridge
UB 9 5HJ
At www.bosch-pt.co.uk you can order spare parts or arrange
the collection of a product in need of servicing or repair.
Tel. Service: (0344) 7360109
E-Mail: boschservicecentre@bosch.com
You can find further service addresses at:
www.bosch-pt.com/serviceaddresses
Disposal
The power tool, accessories and packaging should be re-
cycled in an environmentally friendly manner.
High-strength bolts
6.8 6.9 8.8 10.9
17.5 19.7 23 33
35 39 47 65
60 67 80 113
95 107 130 180
147 165 196 275
202 227 270 380
286 320 385 540
385 430 510 715
490 455 650 910
725 815 960 1345
990 1100 1300 1830
Do not dispose of power tools along with
household waste.
Bosch Power Tools
12.9
39
78
135
215
330
450
635
855
1100
1615
2200