Service and maintenance
8.2 Description of maintenance and repair work
BA 2320
Operating Instructions, 02/2015, 70000004023775
55
8.2.4
Checking tightness of fastening bolts
Note
Replace damaged headless screws with new screws of the same type and strength class.
Switch off the power to the drive unit and use a torque wrench to check the seating of all
fastening bolts.
The general tolerance for the tightening torque in Nm is 10 %. The friction coefficient is
0.14
μ.
Table 8- 3
Tightening torques for fastening bolts
Thread size
Tightening torque at strength class
8.8
10.9
12.9
[Nm]
[Nm]
[Nm]
M4
3
4
5
M5
6
9
10
M6
10
15
18
M8
25
35
41
M10
50
70
85
M12
90
120
145
M16
210
295
355
M20
450
580
690
M24
750
1 000
1 200
M30
1 500
2 000
2 400
M36
2 500
3 600
4 200
8.2.5
Inspection of the motor
Carry out a scheduled inspection of the geared motor once a year in accordance with the
possible criteria listed in Section Faults, causes and remedies (Page 49).
Check the geared motor in accordance with the criteria set out in Section General
information and safety notes (Page 7).
Touch up damaged paintwork carefully.
Summary of Contents for MOTOX BA 2320
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Page 48: ...Operation BA 2320 48 Operating Instructions 02 2015 70000004023775 ...
Page 64: ...Disposal BA 2320 64 Operating Instructions 02 2015 70000004023775 ...
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