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17
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.
Guide values for maximum screw tightening torques
Figures given in Nm; calculated from the tensional cross-section; utilization of the yield point: 90% (with friction coefficient
µ
total
= 0.12). As a control measure, always check the tightening torque with a torque wrench.
Property Classes
according to
DIN 267
Standard Screws/Bolts
High-strength Bolts
3.6
4.6
5.6
4.8
6.6
5.8
6.8
6.9
8.8
10.9
12.9
M6
2.71
3.61
4.52
4.8
5.42
6.02
7.22
8.13
9.7
13.6
16.2
M8
6.57
8.7
11
11.6
13.1
14.6
17.5
19.7
23
33
39
M10
13
17.5
22
23
26
29
35
39
47
65
78
M12
22.6
30
37.6
40
45
50
60
67
80
113
135
M14
36
48
60
65
72
79
95
107
130
180
215
M16
55
73
92
98
110
122
147
165
196
275
330
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.
Belt clip
You can use the belt clip to hang the power tool on a belt, for
example. You then have both hands free and the power tool
is always at hand.
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.
Occasionally clean the ventilation slots on the battery using a
soft brush that is clean and dry.
A significantly reduced operating time after charging indic-
ates that the battery has deteriorated and must be replaced.
Follow the instructions on correct disposal.
Maintenance and Servicing
Maintenance and cleaning
u
Remove the battery from the power tool before carry-
ing out work on the power tool (e.g. maintenance,
changing tool, etc.). The battery should also be re-
moved for transport and storage.
There is risk of injury
from unintentionally pressing the on/off switch.
u
To ensure safe and efficient operation, always keep
the power tool and the ventilation slots clean.
Replacing the carbon brushes (see figure D)
Check the length of the carbon brushes around every 2–3
months and replace both carbon brushes if required.
Never replace only a single carbon brush.
Note:
Only use carbon brushes supplied by Bosch and inten-
ded specifically for your product.
– Unscrew the cap
(14)
using a suitable screwdriver.
– Replace the spring-loaded carbon brushes
(13)
and
screw the cap back on again.
After-sales service and advice on using products
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
you can order spare parts or ar-
range the collection of a product in need of servicing or re-
pair.
Tel. Service: (0344) 7360109
E-Mail: [email protected]
Ireland
Origo Ltd.
Unit 23 Magna Drive
Magna Business Park
City West
Dublin 24
Tel. Service: (01) 4666700
Fax: (01) 4666888
Australia, New Zealand and Pacific Islands
Robert Bosch Australia Pty. Ltd.
Power Tools
Locked Bag 66
Clayton South VIC 3169
Bosch Power Tools
1 609 92A 4PW | (25.10.2018)