Bosch GDS Professional 18V-1050 H 0 601 9J8 522 Original Instructions Manual page 23

Practical advice
Only apply the power tool to the screw/nut when the
u
tool is switched off. Rotating tool inserts can slip off.
The power tool with inserted Bluetooth
u
Module GCY 42 (accessory) is equipped with a radio
interface. Local operating restrictions, e.g. in aircraft
or hospitals, must be observed.
The torque depends on the impact duration. The maximum
achieved torque results from the sum of all individual
torques achieved through impact. Maximum torque is
achieved after an impact duration of 6–10 seconds. After
this duration, the tightening torque increases only minimally.
The impact duration is to be determined for each required
tightening torque. The tightening torque actually achieved
should always be checked with a torque wrench.
Screw applications with hard, spring-loaded or soft seats
When the achieved torques in an impact series are measured
during a test and transferred into a diagram, the result is the
curve of a torque characteristic. The height of the curve cor-
responds with the maximum reachable torque, and the
steepness indicates the duration in which this is achieved.
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
according to DIN
3.6 4.6
267
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
Tips
Before screwing larger, longer screws into hard materials, it
is advisable to pre-drill a pilot hole with the core diameter of
the thread to approx. 2/3 of the screw length.
Note: Ensure that no metal particles enter the power tool.
After working at a low speed for an extended period, you
should operate the power tool at the maximum speed for ap-
proximately three minutes without load to cool it down.
Recommendations for optimal handling of the battery
Protect the battery against moisture and water.
Only store the battery within a temperature range of -20 to
50 °C. Do not leave the battery in your car in the summer, for
example.
A significantly reduced operating time after charging indic-
ates that the battery has deteriorated and must be replaced.
Follow the instructions on correct disposal.
Ladder clip
Bosch Power Tools
A torque gradient depends on the following factors:
– Strength properties of the screws/nuts
– Type of backing (washer, disc spring, seal)
– Strength properties of the material being screwed/bolted
®
Low Energy
together
– Lubrication conditions at the screw/bolt connection
The following application cases result accordingly:
– A hard seat is a metal-to-metal screw application which
uses washers. After a relatively short impact duration, the
maximum torque is reached (steep characteristic curve).
Unnecessary long impact duration only causes damage to
the machine.
– A spring-loaded seat is also a metal-to-metal screw ap-
plication but uses spring washers, disc springs, studs or
screws/nuts with conical seats. It is also called a spring-
loaded seat when extensions are used.
– A soft seat is a screw application of e.g. metal on wood or
a screw application that uses lead washers or fibre wash-
ers as backing.
For a spring-loaded seat as well as for a soft seat, the max-
imum tightening torque is lower than for a hard seat. Also, a
clearly longer impact duration is required.
5.6 4.8 6.6 5.8
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
You can use the utility clip (4) for hanging the power tool to a
ladder, for example.
Control Via App
GDS 18V-1000 C / GDS 18V-1050 HC:
The power tool can be fitted with a Bluetooth® module which
enables wireless data transfer to certain mobile devices with
a Bluetooth® interface (e.g. smartphone, tablet).
In order to control the power tool via Bluetooth®, you will
need the "Bosch Toolbox" app. Download the app from the
corresponding app store (Apple App Store, Google Play
Store).
High-strength screws
6.8 6.9 8.8
35 39 47
60 67 80
95 107 130
147 165 196
202 227 270
286 320 385
385 430 510
490 455 650
The screw of the ladder clip must be tightened
using a tightening torque of approx. 2.0–
2.5 Nm.
1 609 92A 7X5 | (04.07.2022)
English | 23
10.9 12.9
65 78
113 135
180 215
275 330
380 450
540 635
715 855
910 1100