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OBJ_BUCH-595-001.book Page 22 Monday, November 12, 2007 4:15 PM
22 | English
Reference Values for Maximum Screw/Bolt Tightening Torques
Calculated from the tensional cross-section; utilization 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 ac-
cording to DIN 267
M 6
M 8
M 10
M 12
M 14
M 16
M 18
M 20
Tips
Before screwing larger, longer screws into hard
materials, it is advisable to predrill a pilot hole
with the core diameter of the thread to approx.
2
/
of the screw length.
3
Belt Clip (see figure D)
With the belt clip 4, the machine can be hung on-
to a belt. The user has both hands free and the
machine is always at hand.
The belt clip 4 can be attached and screwed to ei-
ther side of the machine.
The belt clip 4 will automatically draw out when
pressing both release buttons. To dismount the
belt clip 4, remove the complete unit by unscrew-
ing the fastening screw.
Always tighten the fastening screw after mount-
ing the belt clip 4.
1 609 929 M67 | (12.11.07)
Standard Screws/Bolts
3.6
4.6
5.6
4.8
2.71
3.61
4.52
4.8
6.57
8.7
11
11.6
13
17.5
22
23
22.6
30
37.6
40
36
48
60
65
55
73
92
98
75
101
126
135
107
143
178
190
6.6
5.8
6.8
6.9
5.42
6.02
7.22
8.13
13.1
14.6
17.5
19.7
26
29
35
39
45
50
60
67
72
79
95
107
110
122
147
165
151
168
202
227
214
238
286
320
Maintenance and Service
Maintenance and Cleaning
Before any work on the machine (e. g., main-
tenance, tool change, etc.) as well as during
transport and storage, set the rotational di-
rection switch to the centre position. Unin-
tentional actuation of the On/Off switch can
lead to injuries.
For safe and proper working, always keep
the machine and ventilation slots clean.
Replacing the Carbon Brushes (see figure E)
Check the length of the carbon brushes approx.
every 2 – 3 months and replace the carbon brush-
es if required.
Never replace only a single carbon brush!
Criteria for replacement of the carbon brushes: A
dotted or broken line is visible on one of the large
side surfaces of each carbon brush. When either
of both carbon brushes is used up to this line,
then both carbon brushes should be replaced im-
mediately in order to protect the armature
against possible damage.
Note: Use only carbon brushes supplied by
Bosch and intended specifically for your product.
– Unscrew the caps 12 using a suitable screw-
driver.
High-strength
Bolts
8.8
10.9
12.9
9.7
13.6
16.2
23
33
39
47
65
78
80
113
135
130
180
215
196
275
330
270
380
450
385
540
635
Bosch Power Tools
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